Via eFiling

Northern Natural Gas Company P.O. Box 3330 Omaha, NE 68103-0330 402 398-7200

August 25, 2021 Via eFiling Ms. Kimberly D. Bose, Secretary Federal Energy Regulatory Commission 888 First Street, N.E. Washington, D.C. 20426 Re: Northern Natural Gas Company

Docket No. CP20-487-000 South Sioux City to Sioux Falls A-line Replacement (Project)

Permission to Use Additional HDD Drilling Additives Dear Ms. Bose: Northern Natural Gas Company (Northern) hereby submits for filing with the Federal Energy Regulatory Commission (FERC) in the above-referenced docket its request for approval to use additional drilling additives, not described in previous filings, when conducting horizontal directional drills (HDDs) for the Project. Northern also is requesting to change the restrictions it placed during use of EZ Mud Gold, an additive that was previously approved by FERC in upland locations. Due to the number of inadvertent returns experienced to date, Northern’s contractor has requested the following be approved for use as drilling additives; the Safety Data Sheets for each new additive is attached. The additives are on both the Minnesota Department of Health approved list of drilling fluids and additives and the ANSI/NSF 60 certified list. Clay Cutter Dry: a dry polymer that provides clay swell inhibition and reduces clay stickiness, allowing for better clay control and transport of clay cuttings to the surface. A treatment ratio of 0.25 - 1.0 gallon per 100 gallons is recommended. Northern proposes to use this additive without restrictions on location or flushing. Clay Drill: a dry polymer designed to provide borehole stabilization, counteract the sticking tendencies of clay, and inhibit clay/shale swelling. A treatment ratio of 0.7 - 1.0 gallon per 100 gallons is recommended. Northern proposes to only use this additive on HDDs under agricultural (cropped) wetlands and uplands. EZ Mud Liquid: a liquid polymer designed to stabilize reactive clays and shales while also improving fluid rheology/flow dynamics. Will also improve slurry lubricity. A treatment ratio

Kimberly D. Bose, Secretary of 2 of 0.5 - 2.0 quarts per 100 gallons is recommended. Northern proposes this additive only be used during the drilling of the HDD pilot hole because it requires flushing, similar to the Penetrol Dry previously approved by FERC. EZ Mud Gold: a polyacrylamide designed to stabilize reactive clays and shales, while also improving fluid rheology/flow dynamics. The additive also will improve slurry lubricity. FERC has previously approved this drilling additive for upland locations. Northern proposes to only use this additive on HDDs under agricultural (cropped) wetlands and uplands. Aqua Clear PFD: a liquid polymer that is a highly effective mud thinner/clay breaker. The additive will thin back an overly thick slurry and break down sticky clays. A treatment ratio of one gallon per 500 gallons is recommended. Northern proposes to only use this additive on HDDs under agricultural (cropped) wetlands and uplands. Based upon the information provided above, and in the attachments, Northern is requesting approval to use the proposed additives during HDD activities as described above. Any questions regarding this filing should be directed to the undersigned at (402) 398-7103. Respectfully submitted, /signed/ Michael T. Loeffler Michael T. Loeffler Senior Director, Certificates and External Affairs

SAFETY DATA SHEET

1. Identification

CLAY CUTTER™ DRYProduct identifier

None.Other means of identification

Not available.Recommended use

None known.Recommended restrictions

Manufacturer/Importer/Supplier/Distributor information

Manufacturer

CETCO, an MTI Company

Address 2870 Forbs AvenueCompany name

Website

Telephone General Information 800 527-9948

Emergency phone number Emergency 1.866.519.4752/1 760 476 3962

E-mail

United States

http://www.cetco.com/

[email protected]

Hoffman Estates, IL 60192

1.866.519.4752 (US, Canada, Mexico) 1 760 476 3962Americas

2. Hazard(s) identification

Not classified.Physical hazards

Not classified.Health hazards

Not classified.Environmental hazards

Combustible dustOSHA defined hazards

Label elements

None.Hazard symbol

Signal word None.

Hazard statement The mixture does not meet the criteria for classification.

Precautionary statement

Prevention Observe good industrial hygiene practices.

Response Wash hands after handling.

Storage Store away from incompatible materials.

Disposal Dispose of waste and residues in accordance with local authority requirements.

Hazard(s) not otherwiseclassified (HNOC)

None known.

Supplemental information None.

3. Composition/information on ingredients

Mixtures

The manufacturer lists no ingredients as hazardous according to OSHA 29 CFR 1910.1200.

*Designates that a specific chemical identity and/or percentage of composition has been withheld as a trade secret.

Occupational Exposure Limits for constituents are listed in Section 8.Composition comments

4. First-aid measures

Remove to fresh air. Move to fresh air. If the affected person is not breathing, apply artificialrespiration. If breathing is difficult, give oxygen. Call a physician if symptoms develop or persist.

Inhalation

Wash off with soap and water. Get medical attention if irritation develops or persists.Skin contact

Do not rub eyes. Flush eyes immediately with large amounts of water. Get medical attention ifirritation develops or persists. Get medical attention if irritation develops and persists.

Eye contact

1 / 7

Material name: CLAY CUTTER™ DRY

4584 Version #: 11 Revision date: 12-August-2018 Issue date: 04-April-2014

SDS US

If vomiting occurs naturally, have victim lean forward to reduce risk of aspiration. Get medicalattention immediately. If swallowed, do NOT induce vomiting. If vomiting occurs, keep head low sothat stomach content doesn't get into the lungs.

Ingestion

Dusts may irritate the respiratory tract, skin and eyes.Most importantsymptoms/effects, acute anddelayed

Treat symptomatically.Indication of immediatemedical attention and specialtreatment needed

If you feel unwell, seek medical advice (show the label where possible).General information

5. Fire-fighting measures

Dry chemical, alcohol foam.Suitable extinguishing media

Do not use water jet as an extinguisher, as this will spread the fire. Carbon dioxide (CO2).Unsuitable extinguishingmedia

During fire, gases hazardous to health may be formed.Specific hazards arising fromthe chemical

As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH(approved or equivalent) and full protective gear.

Special protective equipmentand precautions for firefighters

Use water spray to cool unopened containers. Material can be slippery when wet..Fire fightingequipment/instructions

Use standard firefighting procedures and consider the hazards of other involved materials.Specific methods

No unusual fire or explosion hazards noted.General fire hazards

6. Accidental release measures

Keep unnecessary personnel away. Wear appropriate protective equipment and clothing duringclean-up. Use a NIOSH/MSHA approved respirator if there is a risk of exposure to dust/fume atlevels exceeding the exposure limits. Material can be slippery when wet.

Personal precautions,protective equipment andemergency procedures

Eliminate all ignition sources (no smoking, flares, sparks, or flames in immediate area). Stop leak ifyou can do so without risk. Use clean non-sparking tools to collect absorbed material. Sweep up orgather material and place in appropriate container for disposal. Collect dust using a vacuumcleaner equipped with HEPA filter.

Large Spills: Wet down with water and dike for later disposal. Shovel the material into wastecontainer. Avoid the generation of dusts during clean-up. Following product recovery, flush areawith water.

Small Spills: Sweep up or vacuum up spillage and collect in suitable container for disposal. Wearappropriate protective equipment and clothing during clean-up.

Methods and materials forcontainment and cleaning up

Do not contaminate water. Avoid discharge into drains, water courses or onto the ground.Environmental precautions

7. Handling and storage

Use this product with adequate ventilation. Minimize dust generation and accumulation. Provideappropriate exhaust ventilation at places where dust is formed. In case of insufficient ventilation,wear suitable respiratory equipment. Avoid release to the environment. Practice goodhousekeeping. Material can be slippery when wet.

Precautions for safe handling

Keep away from heat, sparks, and flame. Keep containers tightly closed in a dry, cool andwell-ventilated place. Guard against dust accumulation of this material. Keep out of the reach ofchildren.

Conditions for safe storage,including any incompatibilities

8. Exposure controls/personal protection

Occupational exposure limits

US. OSHA Table Z-3 (29 CFR 1910.1000)FormValueConstituents Type

TWA 5 mg/m3 Respirable fraction.INERT OR NUISANCEDUSTS

15 mg/m3 Total dust.

50 mppcf Total dust.

15 mppcf Respirable fraction.

No biological exposure limits noted for the ingredient(s).Biological limit values

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SDS US

If material is ground, cut, or used in any operation which may generate dusts, use appropriate localexhaust ventilation to keep exposures below the recommended exposure limits. Good generalventilation should be sufficient to control airborne levels.

Appropriate engineeringcontrols

Individual protection measures, such as personal protective equipment

Wear dust goggles.Eye/face protection

Skin protection

Wear appropriate chemical resistant gloves. Suitable gloves can be recommended by the glovesupplier.

Hand protection

Wear appropriate chemical resistant gloves. Normal work clothing (long sleeved shirts and longpants) is recommended.

Other

Use a NIOSH/MSHA approved respirator if there is a risk of exposure to dust/fume at levelsexceeding the exposure limits. None required where adequate ventilation conditions exist.

Respiratory protection

Wear appropriate thermal protective clothing, when necessary.Thermal hazards

Always observe good personal hygiene measures, such as washing after handling the materialand before eating, drinking, and/or smoking. Routinely wash work clothing and protectiveequipment to remove contaminants. Use good industrial hygiene practices in handling thismaterial.

General hygieneconsiderations

9. Physical and chemical properties

Powder.Appearance

Solid.Physical state

Powder. Beaded materialForm

White.Color

None.Odor

Odor threshold Not available.

pH 5 - 7

Melting point/freezing point Not available.

Initial boiling point and boilingrange

Not available.

Flash point Not available.

Evaporation rate Not available.

Not available.Flammability (solid, gas)

Upper/lower flammability or explosive limits

Flammability limit - lower(%)

Not available.

Flammability limit - upper(%)

Not available.

Explosive limit - lower (%) Not available.

Explosive limit - upper (%) Not available.

Vapor pressure Not available.

Vapor density Not available.

Relative density Not available.

Solubility(ies)

Solubility (water) Forms a viscous solution

Partition coefficient(n-octanol/water)

Not available.

Auto-ignition temperature Not available.

Decomposition temperature Not available.

Viscosity Not available.

Other information

Bulk density 800 kg/m3

Not explosive.Explosive properties

Not oxidizing.Oxidizing properties

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SDS US

Percent volatile 0 % estimated

VOC CARB

10. Stability and reactivity

The product is stable and non-reactive under normal conditions of use, storage and transport.Reactivity

Stable at normal conditions.Chemical stability

Will not occur.Possibility of hazardousreactions

Heat, flames and sparks. High temperatures. Contact with incompatible materials. Dust may formexplosive mixture in air. Exposure to moisture.

Conditions to avoid

Strong oxidizing agents.Incompatible materials

No decomposition if stored normally.Hazardous decompositionproducts

11. Toxicological information

Information on likely routes of exposure

Inhalation Dust may irritate respiratory system.

Skin contact Dust or powder may irritate the skin.

Eye contact Dust may irritate the eyes.

Ingestion Expected to be a low ingestion hazard.

Symptoms related to thephysical, chemical andtoxicological characteristics

Dusts may irritate the respiratory tract, skin and eyes.

Information on toxicological effects

Acute toxicity

Test ResultsProduct Species

CLAY CUTTER™ DRY

Inhalation

Acute

LC50 Rat 36000 mg/l/4h

Oral

* Estimates for product may be based on additional component data not shown.

LD50 Rat 2345 mg/kg

Prolonged skin contact may cause temporary irritation.Skin corrosion/irritation

Direct contact with eyes may cause temporary irritation.Serious eye damage/eyeirritation

Respiratory or skin sensitization

Respiratory sensitization Not a respiratory sensitizer.

This product is not expected to cause skin sensitization.Skin sensitization

No data available to indicate product or any components present at greater than 0.1% aremutagenic or genotoxic.

Germ cell mutagenicity

Carcinogenicity This product is not considered to be a carcinogen by IARC, ACGIH, NTP, or OSHA. Not listed byACGIH, IARC, NIOSH, NTP OR OSHA.

IARC Monographs. Overall Evaluation of Carcinogenicity

Not listed.OSHA Specifically Regulated Substances (29 CFR 1910.1001-1052)

Not regulated.US. National Toxicology Program (NTP) Report on Carcinogens

Not listed.

This product is not expected to cause reproductive or developmental effects.Reproductive toxicity

Specific target organ toxicity -single exposure

Not classified.

Specific target organ toxicity -repeated exposure

Not classified.

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SDS US

Aspiration hazard Not an aspiration hazard.

Further information This product has no known adverse effect on human health.

12. Ecological information

Components of this product are hazardous to aquatic life. No data is available on the product itself.Ecotoxicity

No data is available on the degradability of this product. Persistence and degradability

No data available.Bioaccumulative potential

No data available.Mobility in soil

Other adverse effects No other adverse environmental effects (e.g. ozone depletion, photochemical ozone creationpotential, endocrine disruption, global warming potential) are expected from this component.

13. Disposal considerations

Collect and reclaim or dispose in sealed containers at licensed waste disposal site. Do not allowthis material to drain into sewers/water supplies. Dispose in accordance with all applicableregulations.

Disposal instructions

Dispose in accordance with all applicable regulations.Local disposal regulations

The waste code should be assigned in discussion between the user, the producer and the wastedisposal company.

Hazardous waste code

Dispose of in accordance with local regulations. Empty containers or liners may retain someproduct residues. This material and its container must be disposed of in a safe manner (see:Disposal instructions).

Waste from residues / unusedproducts

Since emptied containers may retain product residue, follow label warnings even after container isemptied. Empty containers should be taken to an approved waste handling site for recycling ordisposal.

Contaminated packaging

14. Transport information

DOT

Not regulated as dangerous goods.

IATA


IMDG


Not applicable.Transport in bulk according toAnnex II of MARPOL 73/78 andthe IBC Code

15. Regulatory information

This product is not known to be a "Hazardous Chemical" as defined by the OSHA HazardCommunication Standard, 29 CFR 1910.1200.OSHA Process Safety Standard: This material is not known to be hazardous by the OSHA HighlyHazardous Process Safety Standard, 29 CFR 1910.119.

US federal regulations

TSCA Section 12(b) Export Notification (40 CFR 707, Subpt. D)

Not regulated.CERCLA Hazardous Substance List (40 CFR 302.4)

Not listed.SARA 304 Emergency release notification

Not regulated.OSHA Specifically Regulated Substances (29 CFR 1910.1001-1052)

Not regulated.

SARA 302 Extremely hazardous substance

Superfund Amendments and Reauthorization Act of 1986 (SARA)

Not listed.

No (Exempt)SARA 311/312 Hazardouschemical

SARA 313 (TRI reporting)

Not regulated.

5 / 7



SDS US

Other federal regulations

Clean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPs) List

Not regulated.Clean Air Act (CAA) Section 112(r) Accidental Release Prevention (40 CFR 68.130)

Not regulated.

Not regulated.Safe Drinking Water Act(SDWA)

This product does not contain a chemical known to the State of California to cause cancer, birthdefects or other reproductive harm. California Safe Drinking Water and Toxic Enforcement Act of1986 (Proposition 65): This material is not known to contain any chemicals currently listed ascarcinogens or reproductive toxins.

US state regulations

California Proposition 65

California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65): This materialis not known to contain any chemicals currently listed as carcinogens or reproductive toxins.

International Inventories

Country(s) or region Inventory name On inventory (yes/no)*

NoAustralia Australian Inventory of Chemical Substances (AICS)

NoCanada Domestic Substances List (DSL)

NoCanada Non-Domestic Substances List (NDSL)

NoChina Inventory of Existing Chemical Substances in China (IECSC)

NoEurope European Inventory of Existing Commercial ChemicalSubstances (EINECS)

NoEurope European List of Notified Chemical Substances (ELINCS)

NoJapan Inventory of Existing and New Chemical Substances (ENCS)

NoKorea Existing Chemicals List (ECL)

NoNew Zealand New Zealand Inventory

NoPhilippines Philippine Inventory of Chemicals and Chemical Substances(PICCS)

NoTaiwan Taiwan Chemical Substance Inventory (TCSI)

NoUnited States & Puerto Rico Toxic Substances Control Act (TSCA) Inventory

*A "Yes" indicates that all components of this product comply with the inventory requirements administered by the governing country(s)A "No" indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governingcountry(s).

16. Other information, including date of preparation or last revision

04-April-2014Issue date

12-August-2018Revision date

Version # 11

This safety datasheet only contains information relating to safety and does not replace any productinformation or product specification. HMIS® is a registered trade and service mark of the NPCA.

Further information

Health: 1Flammability: 2Physical hazard: 0

HMIS® ratings

Health: 1Flammability: 2Instability: 0

NFPA ratings

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SDS US

The information provided in this Safety Data Sheet is correct to the best of our knowledge,information and belief at the date of its publication. The manufacturer expressly does not make anyrepresentations, warranties, or guarantees as to its accuracy, reliability or completeness norassumes any liability, for its use. It is the user's responsibility to verify the suitability andcompleteness of such information for each particular use.

Third party materials: Insofar as materials not manufactured or supplied by this manufacturer areused in conjunction with, or instead of this product, it is the responsibility of the customer to obtain,from the manufacturer or supplier, all technical data and other properties relating to these andother materials and to obtain all necessary information relating to them. No liability can beaccepted in respect of the use of this product in conjunction with materials from another supplier.CETCO, an MTI Company cannot anticipate all conditions under which this information and itsproduct, or the products of other manufacturers in combination with its product, may be used. It isthe user’s responsibility to ensure safe conditions for handling, storage and disposal of theproduct, and to assume liability for loss, injury, damage or expense due to improper use. Theinformation in the sheet was written based on the best knowledge and experience currentlyavailable.

Disclaimer

Hazard(s) identification: Supplemental informationRevision information

7 / 7



SDS US

SAFETY DATA SHEETProduct Trade Name: CLAY-DRILL

Revision Date: 01-Jun-2020 Revision Number: 3

1. Identification

1.1. Product Identifier Product Trade Name: CLAY-DRILLSynonyms NoneChemical Family: Polymer BlendInternal ID Code HM008265

1.2 Recommended use and restrictions on use Application: Drilling FluidUses advised against Consumer use

1.3 Manufacturer's Name and Contact Details Manufacturer/SupplierBaroid Industrial Drilling ProductsProduct Service Line of Halliburton Energy Services, Inc.P.O. Box 1675Houston, TX 77251Telephone: (281) 871-4613 or 1-877-379-7412

Baroid Industrial Drilling Products645 - 7th Ave SW Suite 1800Calgary, ABT2P 4G8CanadaTelephone: 1-403-231-9300

Prepared By Chemical StewardshipTelephone: 1-281-871-6107e-mail: [email protected]

1.4. Emergency telephone number: Emergency Telephone Number 1-866-519-4752 or 1-760-476-3962

Global Incident Response Access Code: 334305Contract Number: 14012

2. Hazards Identification

2.1 Classification in accordance with paragraph (d) of §1910.1200

2.2. Label Elements

Hazard Pictograms

Signal Word: Warning

Hazard Statements Not Hazardous

Combustible dust

_____________________________________________________________________________________________Page 1 / 9

Combustible dust

_____________________________________________________________________________________________CLAY-DRILL Revision Date: 01-Jun-2020

May form combustible dust concentrations in air.

Precautionary Statements

Prevention NoneResponse NoneStorage NoneDisposal None

2.3 Hazards not otherwise classified None known

3. Composition/information on Ingredients

Substances CAS Number PERCENT (w/w) GHS Classification - USAnionic polyacrylamide Proprietary 60 - 100% Combustible DustPolyalkylene glycol Proprietary 10 - 30% Combustible Dust

The specific chemical identity of the composition has been withheld as proprietary.

The exact percentage (concentration) of the composition has been withheld as proprietary.

4. First Aid Measures

4.1. Description of first aid measures Inhalation If inhaled, remove from area to fresh air. Get medical attention if respiratory

irritation develops or if breathing becomes difficult.Eyes In case of contact, immediately flush eyes with plenty of water for at least 15

minutes and get medical attention if irritation persists.Skin Wash with soap and water. Get medical attention if irritation persists.Ingestion Rinse mouth with water many times. Get medical attention, if symptoms occur

4.2 Most important symptoms/effects, acute and delayed No significant hazards expected.

4.3. Indication of any immediate medical attention and special treatment needed Notes to Physician Treat symptomatically.


5.1. Extinguishing media Suitable Extinguishing MediaAll standard fire fighting mediaExtinguishing media which must not be used for safety reasonsNone known.

5.2 Specific hazards arising from the substance or mixture Special exposure hazards in a fireDecomposition in fire may produce harmful gases. Organic dust in the presence of an ignition source can be explosive in highconcentrations. Good housekeeping practices are required to minimize this potential.

5.3 Special protective equipment and precautions for fire-fighters Special protective equipment for firefightersFull protective clothing and approved self-contained breathing apparatus required for fire fighting personnel.

_____________________________________________________________________________________________Page 2 / 9



6.1. Personal precautions, protective equipment and emergency procedures Use appropriate protective equipment. Avoid contact with skin, eyes and clothing. Ensure adequate ventilation. Avoidcreating and breathing dust. Remove sources of ignition. Use only competent persons for cleanup. Slippery when wet.See Section 8 for additional information

6.2. Environmental precautions None known.

6.3. Methods and material for containment and cleaning up Scoop up and remove.Cover powder spill with plastic sheet or tarp to minimize spreading


7.1. Precautions for safe handling Handling PrecautionsUse appropriate protective equipment. Avoid contact with eyes, skin, or clothing. Ensure adequate ventilation. Avoidcreating or inhaling dust. Avoid dust accumulations. Remove sources of ignition. Slippery when wet.Hygiene MeasuresHandle in accordance with good industrial hygiene and safety practice.

7.2. Conditions for safe storage, including any incompatibilities Storage InformationStore away from oxidizers. Store in a cool, dry location. Keep container closed when not in use. Keep from heat,sparks, and open flames. Product has a shelf life of 24 months.

8. Exposure Controls/Personal Protection

8.1 Occupational Exposure Limits

Substances CAS Number OSHA PEL-TWA ACGIH TLV-TWAAnionic polyacrylamide Proprietary Not applicable Not applicablePolyalkylene glycol Proprietary Not applicable Not applicable

8.2 Appropriate engineering controls Engineering Controls Localized ventilation should be used to control dust levels.

8.3 Individual protection measures, such as personal protective equipment Personal Protective Equipment If engineering controls and work practices cannot prevent excessive exposures,

the selection and proper use of personal protective equipment should bedetermined by an industrial hygienist or other qualified professional based on thespecific application of this product.

Respiratory Protection Not normally necessary.Dust/mist respirator. (N95, P2/P3)

Hand Protection Use gloves which are suitable for the chemicals present in this product as well asother environmental factors in the workplace.

Skin Protection Wear clothing appropriate for the work environment. Dusty clothing should belaundered before reuse. Use precautionary measures to avoid creating dust whenremoving or laundering clothing.

Eye Protection Safety glasses with side-shields. If splashes are likely to occur, wear: Goggles,Face-shield.

Other Precautions None known.

_____________________________________________________________________________________________Page 3 / 9


9. Physical and Chemical Properties

9.1. Information on basic physical and chemical properties

Property Values Remarks/ - Method pH: 7-9 (5%)Freezing Point / Range No data availableMelting Point / Range No data availableBoiling Point / Range 103 °C / 219 °FFlash Point No data availableFlammability (solid, gas) No data available

Upper flammability limit No data availableLower flammability limit No data available

Evaporation rate No data availableVapor Pressure No data availableVapor Density No data availableSpecific Gravity 0.75 - 0.95Water Solubility Soluble in waterSolubility in other solvents No data availablePartition coefficient: n-octanol/water No data availableAutoignition Temperature No data availableDecomposition Temperature No data availableViscosity No data availableExplosive Properties No information availableOxidizing Properties No information available

9.2. Other information VOC Content (%) 8-13%Bulk Density 48-55 lbs/ft3

10. Stability and Reactivity

10.1. Reactivity Not expected to be reactive.

10.2. Chemical stability Stable

10.3. Possibility of hazardous reactions Will Not Occur

10.4. Conditions to avoid Keep away from heat, sparks and flame.

10.5. Incompatible materials Strong oxidizers. Prolonged contact with aluminum. Contact with copper. Contact with iron.

10.6. Hazardous decomposition products Oxides of nitrogen. Ammonia. Carbon monoxide and carbon dioxide.

11. Toxicological Information

Physical State: Powder Color White to yellowOdor: Odorless Odor

Threshold:No information available

_____________________________________________________________________________________________Page 4 / 9


11.1 Information on likely routes of exposure Principle Route of Exposure Eye or skin contact, inhalation. Ingestion.

11.2 Symptoms related to the physical, chemical and toxicological characteristics Acute Toxicity

Inhalation May cause mild respiratory irritation.Eye Contact May cause mechanical irritation to eye.Skin Contact None known.Ingestion May cause abdominal pain, vomiting, nausea, and diarrhea.

Chronic Effects/Carcinogenicity No data available to indicate product or components present at greater than 0.1%are chronic health hazards.

11.3 Toxicity data

Toxicology data for the components Substances CAS Number LD50 Oral LD50 Dermal LC50 Inhalation

Anionic polyacrylamide Proprietary Not classified Not classified Not classified

Polyalkylene glycol Proprietary 5700 mg/kg (Rat) No data available 320 mg/L (Rat) 4h

Substances CAS Number Skin corrosion/irritationAnionic polyacrylamide No information availablePolyalkylene glycol Non-irritating to the skin

Substances CAS Number Serious eye damage/irritationAnionic polyacrylamide No information availablePolyalkylene glycol Non-irritating to rabbit's eye

Substances CAS Number Skin SensitizationAnionic polyacrylamide No information available Not confirmed to cause skin or respiratory sensitization.Polyalkylene glycol Did not cause sensitization on laboratory animals (guinea pig)

Substances CAS Number Respiratory SensitizationAnionic polyacrylamide No information availablePolyalkylene glycol No information available

Substances CAS Number Mutagenic EffectsAnionic polyacrylamide No information availablePolyalkylene glycol No data of sufficient quality are available.

Substances CAS Number Carcinogenic EffectsAnionic polyacrylamide No information availablePolyalkylene glycol No information available

Substances CAS Number Reproductive toxicityAnionic polyacrylamide No information availablePolyalkylene glycol No data of sufficient quality are available.

Substances CAS Number STOT - single exposureAnionic polyacrylamide No information availablePolyalkylene glycol No data of sufficient quality are available.

Substances CAS Number STOT - repeated exposureAnionic polyacrylamide No information availablePolyalkylene glycol No significant toxicity observed in animal studies at concentration requiring classification.

Substances CAS Number Aspiration hazardAnionic polyacrylamide Not applicablePolyalkylene glycol Not applicable

_____________________________________________________________________________________________Page 5 / 9


12. Ecological Information

12.1. Toxicity Ecotoxicity effectsProduct is not classified as hazardous to the environment.

Substance Ecotoxicity Data Substances CAS Number Toxicity to Algae Toxicity to Fish Toxicity to

MicroorganismsToxicity to Invertebrates

Anionic polyacrylamide Proprietary No information available No information available No information available No information available

Polyalkylene glycol Proprietary No information available TLM96 315 mg/L(Oncorhynus mykiss)LC50 (96h) 105 mg/L(Oncorhynus mykiss)

No information available EC50 (48h) 236 mg/L(Acartia tonsa)

EC50 (48h) 1033 mg/L(Daphnia magna)

12.2. Persistence and degradability

Substances CAS Number Persistence and Degradability

Anionic polyacrylamide Proprietary No information available

Polyalkylene glycol Proprietary No information available

12.3. Bioaccumulative potential

Substances CAS Number Log Pow

Anionic polyacrylamide Proprietary No information available

Polyalkylene glycol Proprietary -1.58

12.4. Mobility in soil

Substances CAS Number MobilityAnionic polyacrylamide Proprietary No information availablePolyalkylene glycol Proprietary No information available

12.5 Other adverse effects No information available

13. Disposal Considerations

13.1. Waste treatment methods Disposal methodsContaminated Packaging

Dispose of in a landfill according to federal, state, and local regulations.Follow all applicable national or local regulations.

14. Transport Information

US DOT UN Number Not restrictedUN proper shipping name: Not restrictedTransport Hazard Class(es): Not applicablePacking Group: Not applicableEnvironmental Hazards: Not applicable

Canadian TDG UN Number Not restrictedUN proper shipping name: Not restrictedTransport Hazard Class(es): Not applicable

_____________________________________________________________________________________________Page 6 / 9


Packing Group: Not applicableEnvironmental Hazards: Not applicable

IMDG/IMO UN Number Not restrictedUN proper shipping name: Not restrictedTransport Hazard Class(es): Not applicablePacking Group: Not applicableEnvironmental Hazards: Not applicable

IATA/ICAO UN Number Not restrictedUN proper shipping name: Not restrictedTransport Hazard Class(es): Not applicablePacking Group: Not applicableEnvironmental Hazards: Not applicable

Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code Not applicableSpecial Precautions for User None

15. Regulatory Information

US Regulations

US TSCA Inventory All components listed on inventory or are exempt.

TSCA Significant New Use Rules - S5A2 Substances CAS Number TSCA Significant New Use Rules - S5A2Anionic polyacrylamide Proprietary Not applicablePolyalkylene glycol Proprietary Not applicable

EPA SARA Title III Extremely Hazardous Substances Substances CAS Number EPA SARA Title III Extremely Hazardous

SubstancesAnionic polyacrylamide Proprietary Not applicablePolyalkylene glycol Proprietary Not applicable

EPA SARA (311,312) Hazard ClassCombustible dust

EPA SARA (313) Chemicals Substances CAS Number Toxic Release Inventory (TRI) -

Group IToxic Release Inventory (TRI) -Group II

Anionic polyacrylamide Proprietary Not applicable Not applicablePolyalkylene glycol Proprietary Not applicable Not applicable

EPA CERCLA/Superfund Reportable Spill Quantity Substances CAS Number CERCLA RQAnionic polyacrylamide Proprietary Not applicablePolyalkylene glycol Proprietary Not applicable

EPA RCRA Hazardous Waste ClassificationIf product becomes a waste, it does NOT meet the criteria of a hazardous waste as defined by the US EPA.

California Proposition 65 Substances CAS Number California Proposition 65Anionic polyacrylamide Proprietary Not applicablePolyalkylene glycol Proprietary Not applicable

_____________________________________________________________________________________________Page 7 / 9


U.S. State Right-to-Know Regulations Substances CAS Number MA Right-to-Know Law NJ Right-to-Know Law PA Right-to-Know LawAnionic polyacrylamide Proprietary Not applicable Not applicable Not applicablePolyalkylene glycol Proprietary Not applicable Not applicable Not applicable

NFPA Ratings: Health 0, Flammability 1, Reactivity 0HMIS Ratings: Health 0, Flammability 1, Physical Hazard 0 , PPE: B

Canadian Regulations

Canadian Domestic SubstancesList (DSL)

All components listed on inventory or are exempt.

16. Other information

Preparation Information Prepared By Chemical Stewardship

Telephone: 1-281-871-6107e-mail: [email protected]

Revision Date: 01-Jun-2020

Reason for Revision Initial Release

Additional informationFor additional information on the use of this product, contact your local Halliburton representative.

For questions about the Safety Data Sheet for this or other Halliburton products, contact Chemical Stewardship at1-580-251-4335.

Key or legend to abbreviations and acronyms used in the safety data sheetbw – body weightCAS – Chemical Abstracts Serviced - dayEC50 – Effective Concentration 50%ErC50 – Effective Concentration growth rate 50%h - hourLC50 – Lethal Concentration 50%LD50 – Lethal Dose 50%LL50 – Lethal Loading 50%mg/kg – milligram/kilogrammg/L – milligram/litermg/m3 - milligram/cubic metermm - millimetermmHg - millimeter mercuryNIOSH – National Institute for Occupational Safety and HealthNTP – National Toxicology ProgramOEL – Occupational Exposure LimitPEL – Permissible Exposure Limitppm – parts per millionSTEL – Short Term Exposure LimitTWA – Time-Weighted AverageUN – United Nationsw/w - weight/weight

_____________________________________________________________________________________________Page 8 / 9

Key literature references and sources for data


www.ChemADVISOR.com/

Disclaimer StatementThis information is furnished without warranty, expressed or implied, as to accuracy or completeness. Theinformation is obtained from various sources including the manufacturer and other third party sources. Theinformation may not be valid under all conditions nor if this material is used in combination with other materials or inany process. Final determination of suitability of any material is the sole responsibility of the user.

End of Safety Data Sheet

_____________________________________________________________________________________________Page 9 / 9

SAFETY DATA SHEETProduct Trade Name: EZ-MUD®

Revision Date: 11-Apr-2017 Revision Number: 37

1. Identification

1.1. Product Identifier Product Trade Name: EZ-MUD®Synonyms NoneChemical Family: BlendInternal ID Code HM003643

1.2 Recommended use and restrictions on use Application: Shale InhibitorUses advised against No information available

1.3 Manufacturer's Name and Contact Details Manufacturer/SupplierBaroid Fluid ServicesProduct Service Line of HalliburtonP.O. Box 1675Houston, TX 77251

Halliburton Energy Services645 - 7th Ave SW Suite 1800Calgary, ABT2P 4G8Canada

Prepared By Chemical StewardshipTelephone: 1-281-871-6107 e-mail: [email protected]

1.4. Emergency telephone number Emergency Telephone Number: 1-866-519-4752 or 1-760-476-3962

Global Incident Response Access Code: 334305Contract Number: 14012

2. Hazards Identification

2.1 Classification in accordance with paragraph (d) of §1910.1200

As adopted by the competent authority, this product does not require an SDS or hazard warning label.

Not classified

2.2. Label Elements

Hazard Pictograms

Signal Word: Not Classified

Hazard Statements Not Hazardous

_____________________________________________________________________________________________Page 1 / 9

_____________________________________________________________________________________________EZ-MUD® Revision Date: 11-Apr-2017

Precautionary Statements

Prevention NoneResponse NoneStorage NoneDisposal None

2.3 Hazards not otherwise classified None known

3. Composition/information on Ingredients

Substances CAS Number PERCENT (w/w) GHS Classification - USHydrotreated light petroleum distillate 64742-47-8 10 - 30% Asp. Tox. 1 (H304)Ethoxylated alcohol Proprietary 1 - 5% Acute Tox. 4 (H302)

Skin Irrit. 2 (H315)Eye Corr. 1 (H318)Aquatic Acute 2 (H401)Aquatic Chronic 3 (H412)

The exact percentage (concentration) of the composition has been withheld as proprietary.

4. First Aid Measures

4.1. Description of first aid measures Inhalation If inhaled, move victim to fresh air and seek medical attention.Eyes In case of contact, immediately flush eyes with plenty of water for at least 15

minutes and get medical attention if irritation persists.Skin Wash with soap and water. Get medical attention if irritation persists. Remove

contaminated shoes and discard.Ingestion Do NOT induce vomiting. Give nothing by mouth. Obtain immediate medical

attention.

4.2 Most important symptoms/effects, acute and delayed No significant hazards expected.

4.3. Indication of any immediate medical attention and special treatment needed Notes to Physician Treat symptomatically.


5.1. Extinguishing media Suitable Extinguishing MediaWater fog, carbon dioxide, foam, dry chemical.Extinguishing media which must not be used for safety reasonsNone known.

5.2 Specific hazards arising from the substance or mixture Special exposure hazards in a fireDecomposition in fire may produce harmful gases. Use water spray to cool fire exposed surfaces.

5.3 Special protective equipment and precautions for fire-fighters

_____________________________________________________________________________________________Page 2 / 9

Special protective equipment for firefightersFull protective clothing and approved self-contained breathing apparatus required for fire fighting personnel.



6.1. Personal precautions, protective equipment and emergency procedures Use appropriate protective equipment. Avoid contact with skin, eyes and clothing. Avoid breathing vapors. Ensureadequate ventilation.See Section 8 for additional information

6.2. Environmental precautions Prevent from entering sewers, waterways, or low areas.

6.3. Methods and material for containment and cleaning up Isolate spill and stop leak where safe. Contain spill with sand or other inert materials. Scoop up and remove.


7.1. Precautions for safe handling Handling PrecautionsAvoid contact with eyes, skin, or clothing. Avoid breathing vapors. Ensure adequate ventilation. Wash hands afteruse. Launder contaminated clothing before reuse. Use appropriate protective equipment.Hygiene MeasuresHandle in accordance with good industrial hygiene and safety practice.

7.2. Conditions for safe storage, including any incompatibilities Storage InformationStore away from oxidizers. Keep container closed when not in use. Store locked up. Product has a shelf life of 12months.

8. Exposure Controls/Personal Protection

8.1 Occupational Exposure Limits Substances CAS Number OSHA PEL-TWA ACGIH TLV-TWAHydrotreated light petroleumdistillate

64742-47-8 Not applicable Not applicable

Ethoxylated alcohol Proprietary Not applicable Not applicable

8.2 Appropriate engineering controls Engineering Controls A well ventilated area to control dust levels. Local exhaust ventilation should be

used in areas without good cross ventilation.

8.3 Individual protection measures, such as personal protective equipment Personal Protective Equipment If engineering controls and work practices cannot prevent excessive exposures,

the selection and proper use of personal protective equipment should bedetermined by an industrial hygienist or other qualified professional based on thespecific application of this product.

Respiratory Protection If engineering controls and work practices cannot keep exposure belowoccupational exposure limits or if exposure is unknown, wear a NIOSH certified,European Standard EN 149, AS/NZS 1715:2009, or equivalent respirator whenusing this product. Selection of and instruction on using all personal protectiveequipment, including respirators, should be performed by an Industrial Hygienist orother qualified professional.Organic vapor respirator with a dust/mist filter. (A2P2/P3) In high concentrations,supplied air respirator or a self-contained breathing apparatus.

Hand Protection Chemical-resistant protective gloves (EN 374) Suitable materials for longer, directcontact (recommended: protection index 6, corresponding to > 480 minutes

_____________________________________________________________________________________________Page 3 / 9


permeation time as per EN 374): Nitrile gloves. (>= 0.35 mm thickness)This information is based on literature references and on information provided byglove manufacturers, or is derived by analogy with similar substances. Pleasenote that in practice the working life of chemical-resistant protective gloves may beconsiderably shorter than the permeation time determined in accordance with EN374 as a result of the many influencing factors (e.g. temperature). If signs of wearand tear are noticed then the gloves should be replaced. Manufacturer's directionsfor use should be observed because of great diversity of types.

Skin Protection Rubber apron.Eye Protection Chemical goggles; also wear a face shield if splashing hazard exists.Other Precautions None known.

9. Physical and Chemical Properties

9.1. Information on basic physical and chemical properties

Property Values Remarks/ - Method pH: 6-8Freezing Point / Range No data availableMelting Point / Range No data availableBoiling Point / Range 175 °C / 347 °FFlash Point > 93 °C / > 200 °F PMCCFlammability (solid, gas) No data available

Upper flammability limit No data availableLower flammability limit No data available

Evaporation rate < 1Vapor Pressure 0.002 mmHgVapor Density No data availableSpecific Gravity 1Water Solubility Partly solubleSolubility in other solvents No data availablePartition coefficient: n-octanol/water No data availableAutoignition Temperature > 200 °C / 392 °FDecomposition Temperature No data availableViscosity No data availableExplosive Properties No information availableOxidizing Properties No information available

9.2. Other information VOC Content (%) No data available

10. Stability and Reactivity

10.1. Reactivity Not expected to be reactive.

10.2. Chemical stability Stable

10.3. Possibility of hazardous reactions Will Not Occur

10.4. Conditions to avoid

Physical State: Liquid Color White to grayOdor: Mild hydrocarbon Odor

Threshold:

_____________________________________________________________________________________________Page 4 / 9

No information available


Keep away from heat, sparks and flame.

10.5. Incompatible materials Strong oxidizers.

10.6. Hazardous decomposition products Ammonia. Oxides of nitrogen. Carbon monoxide and carbon dioxide.

11. Toxicological Information

11.1 Information on likely routes of exposure Principle Route of Exposure Eye or skin contact, inhalation.

11.2 Symptoms related to the physical, chemical and toxicological characteristics Acute Toxicity

Inhalation May cause mild respiratory irritation.Eye Contact In vitro tests indicate that the product is not an eye irritant.Skin Contact Causes mild skin irritation.Ingestion May cause mild gastric distress.

Chronic Effects/Carcinogenicity No data available to indicate product or components present at greater than 0.1%are chronic health hazards.

11.3 Toxicity data

Toxicology data for the components Substances CAS Number LD50 Oral LD50 Dermal LC50 Inhalation

Hydrotreated lightpetroleum distillate

64742-47-8 >5000 mg/kg-bw (rat) (similarsubstance)

>2000 mg/kg-bw (rabbit) (similarsubstance)

>5.2 mg/L (rat, 4 h, vapor)(similar substance)

Ethoxylated alcohol Proprietary 1600 mg/kg-bw (rat) (similarsubstance)

>2000 mg/kg-bw (rabbit) (similarsubstance)

>0.22 mg/L (rat, 4h, aerosol,saturated) (similar substance)

Substances CAS Number Skin corrosion/irritationHydrotreated light petroleumdistillate

64742-47-8 Non-irritating to the skin (similar substances)

Ethoxylated alcohol Causes moderate skin irritation. (Rabbit) (similar substances) Skin, rabbit:

Substances CAS Number Serious eye damage/irritationHydrotreated light petroleumdistillate

64742-47-8 Non-irritating to rabbit's eye (similar substances)

Ethoxylated alcohol Causes severe eye irritation which may damage tissue. (Rabbit) (similar substances) Eye, rabbit:

Substances CAS Number Skin SensitizationHydrotreated light petroleumdistillate

64742-47-8 Did not cause sensitization on laboratory animals (guinea pig) (similar substances)

Ethoxylated alcohol Did not cause sensitization on laboratory animals (guinea pig) (similar substances)

Substances CAS Number Respiratory SensitizationHydrotreated light petroleumdistillate

64742-47-8 No information available

Ethoxylated alcohol No information available

Substances CAS Number Mutagenic EffectsHydrotreated light petroleumdistillate

64742-47-8 In vitro tests did not show mutagenic effects. In vivo tests did not show mutagenic effects. (similarsubstances)

Ethoxylated alcohol In vitro tests did not show mutagenic effects. In vivo tests did not show mutagenic effects. (similarsubstances)

Substances CAS Number Carcinogenic EffectsHydrotreated light petroleum 64742-47-8 Did not show carcinogenic effects in animal experiments (similar substances)

_____________________________________________________________________________________________Page 5 / 9


distillateEthoxylated alcohol Did not show carcinogenic or teratogenic effects in animal experiments (similar substances) Did not

show carcinogenic effects in animal experiments

Substances CAS Number Reproductive toxicityHydrotreated light petroleumdistillate

64742-47-8 Animal testing did not show any effects on fertility. Did not show teratogenic effects in animalexperiments. (similar substances)

Ethoxylated alcohol Animal testing did not show any effects on fertility. Did not show teratogenic effects in animalexperiments. (similar substances)

Substances CAS Number STOT - single exposureHydrotreated light petroleumdistillate

64742-47-8 No significant toxicity observed in animal studies at concentration requiring classification.

Ethoxylated alcohol No significant toxicity observed in animal studies at concentration requiring classification. (similarsubstances)

Substances CAS Number STOT - repeated exposureHydrotreated light petroleumdistillate

64742-47-8 No significant toxicity observed in animal studies at concentration requiring classification. (similarsubstances)

Ethoxylated alcohol No significant toxicity observed in animal studies at concentration requiring classification. (similarsubstances)

Substances CAS Number Aspiration hazardHydrotreated light petroleumdistillate

64742-47-8 Aspiration into the lungs may cause chemical pneumonitis including coughing, difficulty breathing,wheezing, coughing up blood and pneumonia, which can be fatal.

Ethoxylated alcohol Not applicable

12. Ecological Information

12.1. Toxicity

Substance Ecotoxicity Data Substances CAS Number Toxicity to Algae Toxicity to Fish Toxicity to

MicroorganismsToxicity to Invertebrates

Hydrotreated lightpetroleum distillate

64742-47-8 ErL50(72 h)>10000 mg/L(Skeletonema costatum)

LC50(96 h)>10000 mg/L(Scophthalmus maximus)NOELC(28 d)>1000 mg/L

(fish)

No information available LC50(48 h)>10000 mg/L(Acartia tonsa)

NOEC(21 d)=1000 mg/L(Daphnia magna)

Ethoxylated alcohol Proprietary IC50(72 h)=1-10 mg/L(Desmodesmus

subspicatus)

LC50(96 h)=1-10 mg/L(Cyprinus carpio)

No information available EC50(48 h)=1-10 mg/L(Daphnia magna)

EC50(21 d)=0.37 mg/L(Daphnia magna)

12.2. Persistence and degradability

Substances CAS Number Persistence and Degradability

Hydrotreated light petroleum distillate 64742-47-8 Readily biodegradable (68.1% @ 28d)

Ethoxylated alcohol Proprietary Readily biodegradable (85% @ 28d)

12.3. Bioaccumulative potential

Substances CAS Number Log Pow

Hydrotreated light petroleum distillate 64742-47-8 Not Applicable

Ethoxylated alcohol Proprietary Log Pow=2.2

12.4. Mobility in soil

Substances CAS Number MobilityHydrotreated light petroleum distillate 64742-47-8 No information availableEthoxylated alcohol Proprietary Kd = 3.07 L/kg

Kd = 3.09 L/kg

_____________________________________________________________________________________________Page 6 / 9

12.5 Other adverse effects


No information available

13. Disposal Considerations

13.1. Waste treatment methods Disposal methods Disposal should be made in accordance with federal, state, and local regulations.

Incineration recommended in approved incinerator according to federal, state, andlocal regulations.

Contaminated Packaging Follow all applicable national or local regulations.

14. Transport Information

US DOT UN Number Not restrictedUN proper shipping name: Not restrictedTransport Hazard Class(es): Not applicablePacking Group: Not applicableEnvironmental Hazards: Not applicable

Canadian TDG UN Number Not restrictedUN proper shipping name: Not restrictedTransport Hazard Class(es): Not applicablePacking Group: Not applicableEnvironmental Hazards: Not applicable

IMDG/IMO UN Number Not restrictedUN proper shipping name: Not restrictedTransport Hazard Class(es): Not applicablePacking Group: Not applicableEnvironmental Hazards: Not applicable

IATA/ICAO UN Number Not restrictedUN proper shipping name: Not restrictedTransport Hazard Class(es): Not applicablePacking Group: Not applicableEnvironmental Hazards: Not applicable

Transport in bulk according to Annex II of MARPOL 73/78 and the IBC Code Not applicableSpecial Precautions for User None

15. Regulatory Information

US Regulations

US TSCA Inventory All components listed on inventory or are exempt.

TSCA Significant New Use Rules - S5A2 Substances CAS Number TSCA Significant New Use Rules - S5A2Hydrotreated light petroleum distillate 64742-47-8 Not applicableEthoxylated alcohol Proprietary Not applicable

_____________________________________________________________________________________________Page 7 / 9

EPA SARA Title III Extremely Hazardous Substances


Substances CAS Number EPA SARA Title III Extremely HazardousSubstances

Hydrotreated light petroleum distillate 64742-47-8 Not applicableEthoxylated alcohol Proprietary Not applicable

EPA SARA (311,312) Hazard ClassNone

EPA SARA (313) Chemicals Substances CAS Number Toxic Release Inventory (TRI) -

Group IToxic Release Inventory (TRI) -Group II

Hydrotreated light petroleum distillate 64742-47-8 Not applicable Not applicableEthoxylated alcohol Proprietary Not applicable Not applicable

EPA CERCLA/Superfund Reportable Spill Quantity Substances CAS Number CERCLA RQHydrotreated light petroleum distillate 64742-47-8 Not applicableEthoxylated alcohol Proprietary Not applicable

EPA RCRA Hazardous Waste ClassificationIf product becomes a waste, it does NOT meet the criteria of a hazardous waste as defined by the US EPA.

California Proposition 65 Substances CAS Number California Proposition 65Hydrotreated light petroleum distillate 64742-47-8 Not applicableEthoxylated alcohol Proprietary Not applicable

U.S. State Right-to-Know Regulations Substances CAS Number MA Right-to-Know Law NJ Right-to-Know Law PA Right-to-Know LawHydrotreated light petroleumdistillate

64742-47-8 Not applicable Not applicable Not applicable

Ethoxylated alcohol Proprietary Not applicable Not applicable Not applicable

NFPA Ratings: Health 2, Flammability 1, Reactivity 0HMIS Ratings: Health 2, Flammability 1, Physical Hazard 0 , PPE: B

Canadian Regulations

Canadian Domestic SubstancesList (DSL)

All components listed on inventory or are exempt.

16. Other information

Preparation Information Prepared By Chemical Stewardship

Telephone: 1-281-871-6107 e-mail: [email protected]

Revision Date: 11-Apr-2017

Reason for Revision SDS sections updated:2411

_____________________________________________________________________________________________Page 8 / 9

Additional informationFor additional information on the use of this product, contact your local Halliburton representative.

For questions about the Safety Data Sheet for this or other Halliburton products, contact Chemical Stewardship at


1-580-251-4335.

Key or legend to abbreviations and acronyms used in the safety data sheetbw – body weightCAS – Chemical Abstracts Serviced - dayEC50 – Effective Concentration 50%ErC50 – Effective Concentration growth rate 50%h - hourLC50 – Lethal Concentration 50%LD50 – Lethal Dose 50%LL50 – Lethal Loading 50%mg/kg – milligram/kilogrammg/L – milligram/litermg/m3 - milligram/cubic metermm - millimetermmHg - millimeter mercuryNIOSH – National Institute for Occupational Safety and HealthNTP – National Toxicology ProgramOEL – Occupational Exposure LimitPEL – Permissible Exposure Limitppm – parts per millionSTEL – Short Term Exposure LimitTWA – Time-Weighted AverageUN – United Nationsw/w - weight/weight

Key literature references and sources for datawww.ChemADVISOR.com/NZ CCID

Disclaimer StatementThis information is furnished without warranty, expressed or implied, as to accuracy or completeness. Theinformation is obtained from various sources including the manufacturer and other third party sources. Theinformation may not be valid under all conditions nor if this material is used in combination with other materials or inany process. Final determination of suitability of any material is the sole responsibility of the user.

End of Safety Data Sheet

_____________________________________________________________________________________________Page 9 / 9

EZ-MUD® GOLD

© Copyright 2006 Halliburton EZ-MUD, QUIK-GEL, and BORE-GEL are registered trademarks of Halliburton

Rev. 10/2006 · IDP-067

Because the conditions of use of this product are beyond the seller's control, the product is sold without warranty either express or implied and upon condition that purchaser make its own test to determine the suitability for purchaser’s application. Purchaser assumes all risk of use and handling of this product. This product will be replaced if defective in manufacture or packaging or if damaged. Except for such replacement, seller is not liable for any damages caused by this product or its use. The statements and recommendations made herein are believed to be accurate. No guarantee of their accuracy is made, however.

Clay/Shale Stabilizer

Description EZ-MUD GOLD, clay and shale stabilizer, provides inhibition of clay and shale formations in water-based drilling fluids without substantially increasing viscosity. EZ-MUD GOLD, when added to a QUIK-GEL® or BORE-GEL® slurry, yields an inhibitive drilling fluid system while maintaining manageable and effective fluid properties. The unique beaded structure of EZ-MUD GOLD allows the material to be mixed easily at minimal shear thereby eliminating the need for liquid emulsions.

Applications/Functions

Enhances rheological properties of a low-solids drilling mud Promotes clay and shale stabilization to prevent swelling and/or

dispersion Promotes borehole stability in water sensitive formations Minimizes rotational torque and circulating pressure Promotes enhancement of air-foam system capabilities Enhances core recovery in continuous wireline coring operations

Advantages

NSF/ANSI Standard 60 certified Unique physical structure allows for easy dispersion and mixing with

minimal shear Allows for use of increased concentrations to gain inhibition without

excess viscosity production No petroleum distillates present Breaks down chemically with bleach (sodium hypochlorite) Compatible with other Baroid drilling fluid additives when added in

proper sequence Non-fermenting

Typical Properties

• Appearance

• Bulk density, lb/ft3

• pH ( 1% aqueous solution)

White, free-flowing beads

52

7.75

Recommended Treatment

Using a Venturi Mixer, or into vortex of a high-speed stirrer, add slowly

and uniformly to the entire circulating system.

Approximate Amounts of EZ-MUD® GOLD Added to Water Based Fluids

Desired Condition/Result

Drilling Application/Desired Property lb/bbl lbs/100 gal kg/m3

Added to fresh water (to formulate a clay-free drilling fluid)

To stabilize water sensitive formation To reduce torque and lower

circulating pressure 0.25 - 1.0 0.6 – 2.4 0.7 – 2.9

Added to QUIK-GEL® or BORE-GEL® drilling fluids

To retard reactive shale and clay and enhance lubricity 0.1 - 0.3 0.25 – 0.75 0.3 – 0.9

Added to injection liquid in air/foam drilling applications

To improve foam performance and hole conditions

0.25 - 1.0 0.6 – 2.4 0.7 – 2.9

Recommended Treatment

(continued)

Note: Make-up water used to mix EZ-MUD GOLD should meet the following quality: total chloride less than 1500 ppm (mg/L) total hardness less than 100 ppm as calcium total chlorine less than 50 ppm water pH between 8.5-9.5

Reduce total hardness of make-up water by adding soda ash (sodium carbonate) at 0.5 to 1 pound per 100 gallons (0.6 - 1.2 kg/m3) of make-up water.

EZ-MUD GOLD can be chemically broken down with regular household liquid bleach (5% sodium hypochlorite). Use one gallon of liquid bleach per 100 gallons (10 liters/m3) of fluid formulated with EZ-MUD GOLD. Do not use perfumed liquid bleach or solid calcium hypochlorite.

Packaging

EZ-MUD GOLD is packaged in 10-lb (4.54-kg) and 40-lb (18.1-kg) plastic containers with re-sealable flip top lids.

Availability

EZ-MUD GOLD can be purchased through any Baroid Industrial Drilling Products Retailer. To locate the Baroid IDP retailer nearest you contact the Customer Service Department in Houston or your area IDP Sales Representative.

Baroid Industrial Drilling Products Product Service Line, Halliburton

3000 N. Sam Houston Pkwy. E. Houston, TX 77032

Customer Service (800) 735-6075 Toll Free (281) 871-4612

Technical Service (877) 379-7412 Toll Free (281) 871-4613

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