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POSC / WITSMLPOSC / WITSMLMudlog SIG - April 27, 28 2004Mudlog SIG - April 27, 28 2004

POSC Presentation Mudlog SIG Apr 2004.ppt

Project ReviewProject Review

Presented by Cary Fico (ExxonMobil)

Participants:John Lottinville (BHI)Jim Theriot (POSC)

Agenda:• Project Status & Examples• Next Steps • Project Resources

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Complexity of Mudlog Data Content from Different Sources / OperationsComplexity of Mudlog Data Content from Different Sources / Operations

Drilling & Operation Data• hole depth, ROP• bit info: bit trips, type, no.,WOB, RPM• drilling parameter changes, drilling rate exponent• pump pressure, mud rate, mud pump stroke counts • coring points, DST, LOT• MWD / LWD

Cuttings & Lithologic Data• lith description rock type, color, texture etc., visual porosity• interpreted log and lithology percentage log

Gas & Hydrocarbon Data• hydrocarbon shows; staining, fluorescence, cut• total gas, gas chromatograph analysis (component concentrations), gas ratios• H2S & CO2

Mud Data• composition, volume, • temp, resistivity, mud wt (in/out)

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Standard and Alternate Curve and Symbol Styles

Curve Name Description Typical UnitsImperial Metric

ROP Rate of penetration ft/hr, min/ft m/hr, min/m

RPM (Surface) Rotary speed rpm rpm

Torque (Surface) Rotary torque kftlbs

WOB Weight on bit klb tonnesTHA (Total Gas) Hydrocarbon Analysis units, % %

C2 Chromatograph, C2 ppm ppm

Mudlog Data DefinitionsMudlog Data Definitions(Partial List)(Partial List)

Associated Annotation & Symbols

Element Description Typical Examples of Type

Casing Point Text at side of or below symbol. May include casing depth, size and LOT information

1 1 1

Midnight Depth Comment signifying depth at 00:00 hrs. Date is usual text.

1 1 1

Bit Change Depth

Text gives bitname and manufacturer. May have other bit parameters typical for bit run.

1 1 1

Mu

dlo

g

Gas

rati

o

Pre

ssu

re

12/7/02

NB7 HTC MC75DGHIn 3033 m: Out 3933 m900m in 90 hrs

9-5/8" csg3022mMD

LOT 1.58 g/cc EMW

Approximately 175 types of information

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POSC / WITSML Meeting: Mudlog Initiative Agreed upon as high priority.

Interested Parties:• Shell [Linda Dodge]

• BP [Matthew Kirkman]

• Statoil [Oivind Berrgraf]

• ExxonMobil (Cary Fico)

• Paradigm [John Turvill]

• Datalog [David Tonner]

• Baker Hughes Inteq [John Lottinville, John Shields]

• Halliburton Sperry Sun [Robert Schave]

• Petrolink [Nick Williams]

• SDC Geologix [Samit Sengupta]

• POSC (Alna Doniger, Jim Theriot)

• Landmark (Marcus Ridgway)

POSC / WITSML Meeting: Sep 18, 19 2003POSC / WITSML Meeting: Sep 18, 19 2003

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Mudlog Worksessions: Dec 2003 - Apr 2004Mudlog Worksessions: Dec 2003 - Apr 2004

Core Work Team• POSC (Jim Theriot)

• Baker Hughes Inteq [John Lottinville]

• ExxonMobil (Cary Fico)

Early Discussions• SDC Geologix [Samit Sengupta]

• Datalog [David Tonner]

• ??

Mudlog Data Definitions Map to WITSML Elements

• Propose New Elements• ‘Cold Eyes’ Review of Data & Elements

• Review of Other Implementations• Data Flow / Process Data Exchange

• Data ‘Packaging’

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Annotation Style of InformationAnnotation Style of Information

Casing PointMidnight DepthBit ChangeBit ParametersShort TripGen Engr CommentCore IntervalSidewall CoreGas PeaksShow ReportCirculation System CommentsSteam Sill ResultsGen Chromatograph CommentLithlog Log CommentGeneral Mudlog CommentDirectional Survey CommentMudCheck ParamertesWireling Log Run

Etc...

<?xml version="1.0" encoding="UTF-8" ?> - <w:mudLogs xmlns:w="http://www.witsml.org/schemas/130">

- <w:mudLog> - <w:annotation>

<w:annotationType>Midnight_Depth</w:annotationType> <w:mdDepth uom="ft">11695</w:mdDepth> <w:text>12/7/02</w:text>

</w:annotation> - <w:annotation>

<w:annotationType>Core_Interval</w:annotationType> <w:mdTop uom="ft">9000</w:mdTop> <w:mdBottom uom="ft">9090</w:mdBottom> <w:text>Core #3. Core 81/2 “ from 9000 MD to 9090 MD,

recovered 98%</w:text> </w:annotation>

Mudlog Data Elements WITSML Element - New - Mudlog Annotation

• annotation type• mdTop - uom & depth; mdBottom - uom & depth• or mdDepth - uom & depth• text

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Curve Style InformationCurve Style Information

Drilling Ops•ROP•RPM•Torque•WOB•Hookload•SPM•Pump Pressure•Dxc

Gas•Total Gas•Reference Gas•C1, C2, C3 ...

Etc.

Mudlog Curve Data

Curve Data

• log.xsd• logHeader

• logCurveInfo• mnemonic - use spreadsheet ‘curve mnemonic’• units• mnemonic index• nullValue• classPOSC - Property Type Name (PWLS classification)

• mnemAlias - not needed• curveDescription - use spreadsheet ‘Description’

• logData

WITSML Elements - logHeader, logCurveInfo, logData

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Examples:•Annotation•Lithology

•Annotation•Interpreted Interval•Mixed Interval

•Directional Survey•Annotation•Survey Object

•Log / Curve Objects•Lithology Qualifier •Hydrocarbon Show•Discrete Value Data

Mudlog Data Definitions Map to WITSML Elements

• Propose New Elements• ‘Cold Eyes’ Review of Data

& Elements• Review of Other

Implementations• Data Flow / Process Data

Exchange• Data ‘Packaging’

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Sensors

Mudlogger’sDatabase

Multiplex

Screens

Rig Server

On-line plots

Reports (DOC, XLS)

Real-t

ime

Mudloggers or WSGCuttings lithology & showdescriptions, calcimetry ,shale density

WSG Lithology &Show Descriptions from SWC and cores

Tools

LWD/MWD

DatabaseMultiplex

Screens

On-line plotsReal-ti

me

Log Image (PDF, PDS,TIFF)

Data File (ASCII, LAS)

Reports (DOC, XLS)

Log Image (PDF, TIFF)

Data File (ASCII, LAS)

EngineerComments &Observations

WIT

S

EngineerComments &Observations

Edited

Edited

WellsiteGeologist

Reports (DOC, XLS)

Log Image (PDF)

Rig

Server

Ext L

inks

Op

sG

eol /F

EE

-Ma

il,N

etw

ork

Datadisk

Datadisk

HT

TP

RawData

MemoryData

Time

Depth

WSGComments &Observations

Bu

s. Un

itD

rilling

QA/QC

Partn

ers/G

ov

HTTP

HT

TP

HT

TP

HT

TP

HTTP

Log Image (PDF, PDS)

Data File (DLIS, LAS)

Tools

Multiplex

RawData Wireline

Database

Edited

Datadisk

Screens

On-line plots

Real-time

Samples/Corestransportedfromwellsite

Contractor

Analysis

Reports (DOC, XLS)

Log Image (PDF, PDS)

Datadisk

Rig Server

Arch

ive

RawData

EngineerComments &Observations

Generalized Data Generalized Data

Flow ModelFlow Model (Changes with time,

technology and organizational roles)

Business ViewBusiness View: Complexity of Capturing and Distributing Mudlog : Complexity of Capturing and Distributing Mudlog DataData

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Curves & Associated Data

Log Image

Log Drawing File (Geo)

Files / Reports Etc.

Physical Media

LAS 3 (LAS 2+, XML)

.PDF (.PDS, .TIFF)

.ODF

.xls, .doc, .mdb

Data Type Recommended Format

Needs to be worked with data providers, database & apps vendors

Mudlog Format / Media StandardsMudlog Format / Media Standards

Data Transfer, Usage and Display

?

?

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Next Steps & Project Resource Review Next Steps & Project Resource Review

ExxonMobil, BHI, POSC, Datalog, Geologix, Landmark, ?? ExxonMobil, BHI, POSC, Datalog, Geologix, Landmark, ?? • ‘Cold Eyes’ Review Mudlog Data Content, Mapping to WITSML Elements• Propose Mudlog data process as seen in ‘Business View’ - how data is

generated, captured, distributed, used• Data ‘Packaging’ (Multiple Objects / Multiple Data Streams)• Use of WITSML Server - Publish, Subscribe ...• Service Provider and Application Vendor Specifications• Tentative Pilot Project 4th Qtr: pending scope and commitment

• Organizational Acceptance & Use

Future Potential (2005 - 2006 ?)Future Potential (2005 - 2006 ?)• Core Analysis / Reports WITSML Object• Fluid Reports WITSML Object• Formation Evaluation / Log WITSML Object• Operations Report / Daily Drilling WITSML Object• Real Time Data WITSML Data Object

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Thank - YouThank - You

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Business Benefits• Reduce administration costs• Reduce loss of data & cost associated with re-order, time searching or re-creating data• Reduces time & costs associated with data loading into repositories and applications• Improves data quality by ensuring data is complete and fit for business use.• Improved decision making i.e more comprehensive information readily available when

needed in a useable format.

Why Standardized Formats ? (Data Content)• Ensure complete data set; with at least minimal data + information• Expedite data receipt & loading, data search & tracking• Expedite transfer and integration of data for Engineers & Geoscientists• Simplify the Complexity - WITSML benefits achieved through data schema standards

applied across different processes (as provided by service providers and internal departments) that generate or modify data; eliminate need for point to point specifications for data exchange

BenefitsBenefits