Inside - Schramm Inc.of Schramm rigs throughout the region. Earlier this year, Schramm training...
Transcript of Inside - Schramm Inc.of Schramm rigs throughout the region. Earlier this year, Schramm training...
A s diesel fuel and gasoline prices
reach new heights a number of major oil and gas producers are installing dual fuel systems in rigs service vehicles and support trucks Today more than 30 rigs are operating some form of dual fuel engine system in the Marcellus Shale
Responding to the increasing use of natural gas to power engines on equipment producing and transporting oil and natural gas Schramm will offer engines burning a mixture of 35 percent diesel fuel
Schramm To Offer Dual Fuel Engines for Major Cost Savings1
Schramm Launches Trailer Mounted T130XD Telemast Drilling Rig in Australia2
Schramm Establishes Scholarship Fund at Penn College3
air-Control Retrofit in Saipan Proves Worth in Tropical Climates3
Service Tips From The Schramm-Man4
Upcoming Events6
THIS ISSUEInside
quarterly news
INDepth EditorCheryl Zultewicz
CorporatE VIsIoNWe will continue our tradition as a privately owned company focused on providing superior drill rigs and services personalized to meet customer requirements
Schramm Inc is a company dedicated to meeting the needs of the drilling contractor Driven by contractor requirements Schramm personnel design and manufacture products around the traditions of superior quality innovation and flexibility Utilizing the capabilities of computer aided design workstations and a fully integrated manufacturing process capability contractor ideas are transformed into drilling solutions to meet the ever increasing demands of the industry
V1 bull Issue 4 bull sprIng 2012
schramm to offer Dual Fuel Engines for Major Cost savings
MTU Engine on a Schramm T130XD Drilling Rig
From a pure cost standpoint with natural gas coming in at 17th the relative cost of number 2 fuel oil on a BTU basis it makes sense to convert Schramm is currently looking into a number of dual fuel conversion systems that can be factory installed or field retrofit rdquo
ldquo
and 65 percent natural gas new rigs burning this mixture will be available from the factory Schramm will also offer field retrofits for existing Schramm rigs running MTU engines
The impetus for powering oil field equipment engines
with a mixture of diesel and natural gas comes from its significant advantages
bull Lower fuel cost than straight diesel
bull reduced nOX particulate matter emissions
bull Fuel flexibility with rigs able to operate on straight diesel or diesel natural gas mixture
bull Interchangeability between Cng Lng or field gas
From a pure cost standpoint with natural gas coming in at 17th the relative cost of number 2 fuel oil on a BTU
Continued on page 6
3V1 bull Issue 4 bull sprIng 2012
IND
epth
2 INDepth bull Quarterly newsletter
IND
epth
schramm Establishes scholarship Fund at penn College
schramm Launches trailer Mounted t130XD telemast Drilling rig in australia
With the recent arrival of the new trailer mounted
Schramm T130XD Telemast drilling rig in Australia new capabilities and applications for this proven Schramm design series are no longer secret This rig embarked on its Australian adventure to drill dewatering holes in the Western Australian Pilbara region for the iron ore mines The new T130XD and more just like it are destined for use on the West Coast Many other Schramm Telemast rigs operate throughout Australia in Energy and Mineral Exploration applications
Air Drill the Australasian distributor for Schramm is the sole provider of Schramm drilling rigs in this important region The long standing relationship between both firms ensures that Schramm rig users are offered comprehensive manufacturing sales service and technical backup on a 247 basis
In recent months following the success of previous Schramm rigs across the country two leading Australian drilling companies have purchased the new trailer mounted
T130XD With the arrival of these new rigs in country operating sites will reduce down time and increase overall production Both companies have mentioned that they are impressed with the range III Casing capability and the overall short length of the rig which makes it easily maneuverable As stated by nathan Horton Air Drill Sales and Marketing Manager ldquoWith
Schramm Inc has established an endowed scholarship fund at Pennsylvania College
of Technology that provides a permanent
For more details contact
nathan Horton sales amp Marketing Manager
AIrDrILL pTY Ltd
Phone +61 (8) 9334 5900
Email nhortonairdrillcomau
Schramm Trailer Mounted T130XD
ldquo Wersquore grateful for the very positive relationship we have with Schramm The companyrsquos broad support and interest in our students includes providing scholarships internships technical expertise equipment demonstrations and other educational opportunities as well as recruiting our students to become employees after graduationrdquo
ndash Debra M Miller Director of Corporate Relations Penn College
For more information about any of Pennsylvania College of Technologyrsquos majors visit wwwpctedu call toll-free (800) 367-9222 or e-mail admissionspctedu
For more information about career opportunities at Schramm Inc please contact HRschramminccom andor visit wwwschramminccom g
air-CoNtroL retrofit in saipan proves Worth in tropical ClimatesAs Schramm products reach
out to all corners of the world wide ranging operating environments bring unique challenges to our customers and their Schramm rigs in exotic places like Saipan a small island in the Philippine Sea of the Pacific Ocean
One such recent challenge to Schramm was to provide air-COnTrOL as a stand-alone upgrade to an older T685WS This customer was not the usual drilling company or independent drilling contractor In this case Water Task Force
for the Commonwealth of the northern Mariana Islands needed a solution to extreme tropical conditions and its long term impact on the pneumatic onboard operating systems used on its Schramm rig The Task Force has a critical mission to provide fresh water for over 60000 inhabitants and their businesses on the island so rig reliability and performance is important to the entire local population
To fulfill their mission Water Task Force depends on a 2004 vintage Schramm T685WS
Schramm Service Technician Dave Finkbohner (top left) and members of the Water Task Force (upper right Jess Aldan lower left Diego Cabrera center Damian pua and right paul Manglona) with their new air-COnTrOL systemContinued on page 5
Written By Pennsylvania College of Technology Public Information
source of financial support for students enrolled full-time in Penn Collegersquos associate degree major in heavy construction equipment technology
Schramm is a regular visitor to the Collegersquos career fairs and currently employs several Penn College graduates In addition to the newly established scholarship since 2006 Schramm has funded another scholarship at Penn College that provides annual awards to students in several other majors that are in high demand at the firm
ldquoThe Penn College graduates that we have hired demonstrate initiative and solid technical skills And most importantly they arrive on the first
day with a great work ethicrdquo says Ed Breiner CEOPresident of Schramm
Penn College is a special mission affiliate of The Pennsylvania State University committed to applied technology education nearly 6300 students are enrolled in bachelor-degree associate-degree and certificate majors relating to more than 100 career areas
Photo courtesy of Pennsylvania College of Technology
With the Telemast design the T130XD is the most capable and manageable rig on the market in its
class sizerdquoldquo the Telemast design the T130XD is the most capable and manageable rig on the market in its class sizerdquo
Schramm in conjunction with Air Drill regularly conducts joint training schools for rig owners drillers and maintenance crews around the country This enables safe efficient operation and proper preventative maintenance of Schramm rigs throughout the region Earlier this year Schramm training schools were held in both Perth and Brisbane graduating more than 40
students on completion of the program Representatives from leading drilling contractors and mining companies participated
Schramm and Air Drill firmly believe providing innovative rigs and comprehensive training for our customers go hand in hand as we help them obtain the most out of their investment g
Photo courtesy of Western Well Supply
5V1 bull Issue 4 bull sprIng 2012
IND
epthservice tips with the schramm-Man
4 INDepth bull Quarterly newsletter
pressure to achieve the proper make-up torque and to not over tighten the joint This is the purpose of the torque limiting option on your Schramm drill rig Using the official Schramm Drill Pipe Torque Calculator shown in Figure 4-3 we can determine that the correct pressure setting for the torque limiter should be 2365 psig If your maximum torque capability is 17460 ft-lbs (209528 in-lbs) the pressure setting would be 1180 psig
Try out the Schramm Drill Pipe Torque Calculator today by contacting our Service Team at serviceschramminccom
Now what if you know your drill pipe recommended make-up torque but you donrsquot know your drill rigrsquos maximum torque capability
You must refer to your rig specific hydraulic diagram for these details
Having the torque limiter turned to the ldquoOnrdquo position to make-up joints
Phone 610-696-2500 Email service schramminccom
For additional service questions or to speak with a Service Technician contact us today
IND
epth
The engineerrsquos Handbook states the torque for a 516-
18 nC grade 8 cap screw is 29 ft lbs and a 58-11 nC grade 8 cap screw is 230 ft lbs
Why is torque important The proper tension on threads (torque) insures the strength of the connection and will make two independent items work as one Proper tension also protects the connection against fatigue caused by stress cycles (vibrations) that will create joint failure
now you ask
What does all this have to do with my rig
Do you know what the torque value for your drill pipe thread is Is it 3-1 ApI thread or a 2-78 IF thread
How do I achieve the proper torque for my drill pipe thread joints
In order for the drill string to work as one like any thread connection the proper torque should be applied to the threads at each tool joint If the tool joints are not in proper tension then you are at risk of breaking a thread joint andor losing a drill string
The hydraulic rotary top drive drill rig is a very powerful efficient piece of equipment with a varying amount of rotary torque dependent upon the hydraulic components that are ordered in the rotation circuit The torque of a hydraulic motor measured in inch pounds (in-lb) is equal to pressure (psI) X the motor displacement (insup3rev) divided by 2 X Pi (6282) The hydraulic motors are installed in a rotation gearbox that reduces the speed but increases the mechanical advantage In the case of most schramm gearboxes that ratio is 351 All hydraulic components are given an operating efficiency dependent on the design Under most operating conditions these motors are around 92 efficient Divide the result by 12 to determine ft-lb of torque
3500 psi X 292 insup3rev6282
= 16268 X the gear ratio (351)
= 56938 X component efficiency (92)
= 52382 in-lb 12 inft
= 4365 ft-lb
In the example above (Figure 4-1) a rotation gearbox with a single 292 cu in motor will deliver 4365 ft-lb of torque at 3500 psig If the gearbox is of the two motor design and the volume of the motor remains the same the torque value would double or equate to 8730 ft-lb If the gearbox is of the four motor
design then the torque would increase to a maximum of 17460 ft-lb
The next question should be ldquoHow tight do I make my thread jointrdquo And where do I find this information
Drill pipe thread joint torque values can be found in the tool tech section of the Baker Oil Tools handbook Figure 4-2 shows a sample of the more commonly used thread joint torque values
recommended Make-Up torques
2 38 IF 3400 ft-lbs
2 38 Reg 3700 ft-lbs
2 78 IF 5900 ft-lbs
2 78 Reg 6500 ft-lbs
3 12 Reg 7500 ft-lbs
4 FH 11800 ft-lbs
4 12 Reg 15000 ft-lbs
4 12 FH 17700 ft-lbs
6 58 Reg 43000 ft-lbs
If you are drilling with drill pipe that is equipped with 2-78 IF thread joints you would need 5900 ft-lbs of torque to properly tighten this joint
So What do you do if your drill rig makes up to 8730 ft-lbs (104764 in-lbs) of torque
You would have to limit the hydraulic
Drill pipe Torque How Tight Is Tight enough
steve Hanley The schramm-Man
and drill the bore hole will insure proper tension of all the pipe joints in your drill string By design the torque limiter circuit is only engaged in the clockwise rotation direction Following this drilling practice will leave you sufficient torque for breaking joints loose when removing your drill string from the bore hole
After achieving bore hole completion increasing the make-up torque at the gearbox tool joint will result in the joint breaking at the table reliably Typically the tool joint is set 200 to 300 psi above the drill pipe torque for the drilling process to accomplish this Optional dual torque limiters can make this job easier One set for the makeup torque at the first joint and the other set for drill pipe torque for drilling Proper torque of drill pipe joints makes drilling safer increases drill pipe life and helps to achieve a straight bore hole g
Drill Pipe Torque Calculator Recommended Make-Up Torques
2 38 IF 3400 Ft-lbs 2 38 Reg 3700 Ft-lbs 2 78 IF 5900 Ft-lbs 2 78 Reg 6500 Ft-lbs 3 12 Reg 7500 Ft-lbs 4 FH 11800 Ft-lbs 4 12 Reg 15000 Ft-lbs 4 12 FH 17700 Ft-lbs 6 58 Reg 43000 Ft-lbs
280746
3500
5900
883
MaxRotation Torque inlbs
Compensator pressure
Desired drill pipe torque Ft-lbs
Required rotation gauge pressure
Figure 4-3
Figure 4-1
Figure 4-2
schramm 2 78 IF Drill pipe
air-COnTrOL retrofit (continued)
drilling rig This rig operates and is exposed to 85-95 degree Fahrenheit weather with 90-100 relative humidity 365 days a year Under these conditions the standard pneumatic air control system on the rig needed constant attention
During Schramm Service Technician Dave Finkbohnerrsquos semi-annual Schramm Service visit several years ago in conjunction with an authorized Schramm dealer Dan novarra of Western Well supply Dave had the opportunity to address this issue and recommend installation of the Schramm air-COnTrOL system on the T685Ws rig After meeting with Water Task Force management the system was sold as a stand-alone upgrade This would be the first field retrofit of air-COnTrOL
With the assistance of a local ship repair shop Seafix the Schramm Service Team had a facility in which to work that offered protection from endless rain squalls that were faced throughout the installation process With the rig available and a shop to work in it was time to put it all together By the end of the third day all of the components were installed including the view screen in the control panel After a full system test and a short course in air-COnTrOL operation schramm provided Seafix personnel with the necessary service documentation and training to permit local field support looking forward
In the past few years since the original air-COnTrOL installation on Water Task Forcersquos rig there has been only one service issue caused by a damaged sensor that was easily replaced Thanks to the global reach and experience of Schrammrsquos field service team the Water Task Force continues to drill throughout Saipan with outstanding results g
800 east Virginia Ave bull West Chester pA 19380 bull phone 610-696-2500 bull Fax 610-696-6950 bull wwwschramminccom
6 V1 bull Issue 4 bull sprIng 2012
IND
epth
Upcoming Events
ExpominApril 9th - 13th 2012
espacio riesco bull santiago Chile
Mining World russiaJanuary 26th amp 27th 2012
Crocus expo bull Moscow russia
offshore technology ConferenceApril 28th - May 3rd 2012
reliant Arena bull Houston TX
IaDC Drilling onshore Conference amp ExhibitionMay 17th 2012
Omni Houston Hotel Westside bull Houston TX
CanwellMay 23rd - 26th 2012
Hamilton Convention Center bull Hamilton Ontario Canada
basis it makes sense to convert Rig fuel consumption on straight diesel can be a substantial day to day variable cost MTU engines at full load on Schramm Telemast rigs can consume up to 36 gallons per hour at 760 Hp output
Schramm is currently looking into a number of dual fuel conversion
Dual Fuel Engines (continued)
Wampex Mining ExpoJune 6th - 8th 2012
Accra International Conference Centre bull ghana
pGWa summer MeetingJune 8th 2012
Rock of Springs PA
Global petroleum showJune 12th - 14th 2012
stampede park bull Calgary Alberta Canada
NEFtEGaZJune 25th - 29th 2012
expocentre Krasnaya presnya bull Moscow russia
systems that can be factory installed or field retrofit Typical components include
bull gas power valve
bull Air-fuel mixer
bull gas train
bull engine control system
Systems introduce gas into the air flowing into the engine injecting natural gas in between the air cleaner and the turbocharger at a mixture that is lean enough to prevent pre-ignition The airgas mixture is ignited when the piston reaches top dead center and diesel fuel is injected gas flow varies with combustion airflow as controlled by the system The OEM governing system controls diesel fuel requirements
Schramm will keep you posted on developments and future availability gSchramm Telemast Rigs
3V1 bull Issue 4 bull sprIng 2012
IND
epth
2 INDepth bull Quarterly newsletter
IND
epth
schramm Establishes scholarship Fund at penn College
schramm Launches trailer Mounted t130XD telemast Drilling rig in australia
With the recent arrival of the new trailer mounted
Schramm T130XD Telemast drilling rig in Australia new capabilities and applications for this proven Schramm design series are no longer secret This rig embarked on its Australian adventure to drill dewatering holes in the Western Australian Pilbara region for the iron ore mines The new T130XD and more just like it are destined for use on the West Coast Many other Schramm Telemast rigs operate throughout Australia in Energy and Mineral Exploration applications
Air Drill the Australasian distributor for Schramm is the sole provider of Schramm drilling rigs in this important region The long standing relationship between both firms ensures that Schramm rig users are offered comprehensive manufacturing sales service and technical backup on a 247 basis
In recent months following the success of previous Schramm rigs across the country two leading Australian drilling companies have purchased the new trailer mounted
T130XD With the arrival of these new rigs in country operating sites will reduce down time and increase overall production Both companies have mentioned that they are impressed with the range III Casing capability and the overall short length of the rig which makes it easily maneuverable As stated by nathan Horton Air Drill Sales and Marketing Manager ldquoWith
Schramm Inc has established an endowed scholarship fund at Pennsylvania College
of Technology that provides a permanent
For more details contact
nathan Horton sales amp Marketing Manager
AIrDrILL pTY Ltd
Phone +61 (8) 9334 5900
Email nhortonairdrillcomau
Schramm Trailer Mounted T130XD
ldquo Wersquore grateful for the very positive relationship we have with Schramm The companyrsquos broad support and interest in our students includes providing scholarships internships technical expertise equipment demonstrations and other educational opportunities as well as recruiting our students to become employees after graduationrdquo
ndash Debra M Miller Director of Corporate Relations Penn College
For more information about any of Pennsylvania College of Technologyrsquos majors visit wwwpctedu call toll-free (800) 367-9222 or e-mail admissionspctedu
For more information about career opportunities at Schramm Inc please contact HRschramminccom andor visit wwwschramminccom g
air-CoNtroL retrofit in saipan proves Worth in tropical ClimatesAs Schramm products reach
out to all corners of the world wide ranging operating environments bring unique challenges to our customers and their Schramm rigs in exotic places like Saipan a small island in the Philippine Sea of the Pacific Ocean
One such recent challenge to Schramm was to provide air-COnTrOL as a stand-alone upgrade to an older T685WS This customer was not the usual drilling company or independent drilling contractor In this case Water Task Force
for the Commonwealth of the northern Mariana Islands needed a solution to extreme tropical conditions and its long term impact on the pneumatic onboard operating systems used on its Schramm rig The Task Force has a critical mission to provide fresh water for over 60000 inhabitants and their businesses on the island so rig reliability and performance is important to the entire local population
To fulfill their mission Water Task Force depends on a 2004 vintage Schramm T685WS
Schramm Service Technician Dave Finkbohner (top left) and members of the Water Task Force (upper right Jess Aldan lower left Diego Cabrera center Damian pua and right paul Manglona) with their new air-COnTrOL systemContinued on page 5
Written By Pennsylvania College of Technology Public Information
source of financial support for students enrolled full-time in Penn Collegersquos associate degree major in heavy construction equipment technology
Schramm is a regular visitor to the Collegersquos career fairs and currently employs several Penn College graduates In addition to the newly established scholarship since 2006 Schramm has funded another scholarship at Penn College that provides annual awards to students in several other majors that are in high demand at the firm
ldquoThe Penn College graduates that we have hired demonstrate initiative and solid technical skills And most importantly they arrive on the first
day with a great work ethicrdquo says Ed Breiner CEOPresident of Schramm
Penn College is a special mission affiliate of The Pennsylvania State University committed to applied technology education nearly 6300 students are enrolled in bachelor-degree associate-degree and certificate majors relating to more than 100 career areas
Photo courtesy of Pennsylvania College of Technology
With the Telemast design the T130XD is the most capable and manageable rig on the market in its
class sizerdquoldquo the Telemast design the T130XD is the most capable and manageable rig on the market in its class sizerdquo
Schramm in conjunction with Air Drill regularly conducts joint training schools for rig owners drillers and maintenance crews around the country This enables safe efficient operation and proper preventative maintenance of Schramm rigs throughout the region Earlier this year Schramm training schools were held in both Perth and Brisbane graduating more than 40
students on completion of the program Representatives from leading drilling contractors and mining companies participated
Schramm and Air Drill firmly believe providing innovative rigs and comprehensive training for our customers go hand in hand as we help them obtain the most out of their investment g
Photo courtesy of Western Well Supply
5V1 bull Issue 4 bull sprIng 2012
IND
epthservice tips with the schramm-Man
4 INDepth bull Quarterly newsletter
pressure to achieve the proper make-up torque and to not over tighten the joint This is the purpose of the torque limiting option on your Schramm drill rig Using the official Schramm Drill Pipe Torque Calculator shown in Figure 4-3 we can determine that the correct pressure setting for the torque limiter should be 2365 psig If your maximum torque capability is 17460 ft-lbs (209528 in-lbs) the pressure setting would be 1180 psig
Try out the Schramm Drill Pipe Torque Calculator today by contacting our Service Team at serviceschramminccom
Now what if you know your drill pipe recommended make-up torque but you donrsquot know your drill rigrsquos maximum torque capability
You must refer to your rig specific hydraulic diagram for these details
Having the torque limiter turned to the ldquoOnrdquo position to make-up joints
Phone 610-696-2500 Email service schramminccom
For additional service questions or to speak with a Service Technician contact us today
IND
epth
The engineerrsquos Handbook states the torque for a 516-
18 nC grade 8 cap screw is 29 ft lbs and a 58-11 nC grade 8 cap screw is 230 ft lbs
Why is torque important The proper tension on threads (torque) insures the strength of the connection and will make two independent items work as one Proper tension also protects the connection against fatigue caused by stress cycles (vibrations) that will create joint failure
now you ask
What does all this have to do with my rig
Do you know what the torque value for your drill pipe thread is Is it 3-1 ApI thread or a 2-78 IF thread
How do I achieve the proper torque for my drill pipe thread joints
In order for the drill string to work as one like any thread connection the proper torque should be applied to the threads at each tool joint If the tool joints are not in proper tension then you are at risk of breaking a thread joint andor losing a drill string
The hydraulic rotary top drive drill rig is a very powerful efficient piece of equipment with a varying amount of rotary torque dependent upon the hydraulic components that are ordered in the rotation circuit The torque of a hydraulic motor measured in inch pounds (in-lb) is equal to pressure (psI) X the motor displacement (insup3rev) divided by 2 X Pi (6282) The hydraulic motors are installed in a rotation gearbox that reduces the speed but increases the mechanical advantage In the case of most schramm gearboxes that ratio is 351 All hydraulic components are given an operating efficiency dependent on the design Under most operating conditions these motors are around 92 efficient Divide the result by 12 to determine ft-lb of torque
3500 psi X 292 insup3rev6282
= 16268 X the gear ratio (351)
= 56938 X component efficiency (92)
= 52382 in-lb 12 inft
= 4365 ft-lb
In the example above (Figure 4-1) a rotation gearbox with a single 292 cu in motor will deliver 4365 ft-lb of torque at 3500 psig If the gearbox is of the two motor design and the volume of the motor remains the same the torque value would double or equate to 8730 ft-lb If the gearbox is of the four motor
design then the torque would increase to a maximum of 17460 ft-lb
The next question should be ldquoHow tight do I make my thread jointrdquo And where do I find this information
Drill pipe thread joint torque values can be found in the tool tech section of the Baker Oil Tools handbook Figure 4-2 shows a sample of the more commonly used thread joint torque values
recommended Make-Up torques
2 38 IF 3400 ft-lbs
2 38 Reg 3700 ft-lbs
2 78 IF 5900 ft-lbs
2 78 Reg 6500 ft-lbs
3 12 Reg 7500 ft-lbs
4 FH 11800 ft-lbs
4 12 Reg 15000 ft-lbs
4 12 FH 17700 ft-lbs
6 58 Reg 43000 ft-lbs
If you are drilling with drill pipe that is equipped with 2-78 IF thread joints you would need 5900 ft-lbs of torque to properly tighten this joint
So What do you do if your drill rig makes up to 8730 ft-lbs (104764 in-lbs) of torque
You would have to limit the hydraulic
Drill pipe Torque How Tight Is Tight enough
steve Hanley The schramm-Man
and drill the bore hole will insure proper tension of all the pipe joints in your drill string By design the torque limiter circuit is only engaged in the clockwise rotation direction Following this drilling practice will leave you sufficient torque for breaking joints loose when removing your drill string from the bore hole
After achieving bore hole completion increasing the make-up torque at the gearbox tool joint will result in the joint breaking at the table reliably Typically the tool joint is set 200 to 300 psi above the drill pipe torque for the drilling process to accomplish this Optional dual torque limiters can make this job easier One set for the makeup torque at the first joint and the other set for drill pipe torque for drilling Proper torque of drill pipe joints makes drilling safer increases drill pipe life and helps to achieve a straight bore hole g
Drill Pipe Torque Calculator Recommended Make-Up Torques
2 38 IF 3400 Ft-lbs 2 38 Reg 3700 Ft-lbs 2 78 IF 5900 Ft-lbs 2 78 Reg 6500 Ft-lbs 3 12 Reg 7500 Ft-lbs 4 FH 11800 Ft-lbs 4 12 Reg 15000 Ft-lbs 4 12 FH 17700 Ft-lbs 6 58 Reg 43000 Ft-lbs
280746
3500
5900
883
MaxRotation Torque inlbs
Compensator pressure
Desired drill pipe torque Ft-lbs
Required rotation gauge pressure
Figure 4-3
Figure 4-1
Figure 4-2
schramm 2 78 IF Drill pipe
air-COnTrOL retrofit (continued)
drilling rig This rig operates and is exposed to 85-95 degree Fahrenheit weather with 90-100 relative humidity 365 days a year Under these conditions the standard pneumatic air control system on the rig needed constant attention
During Schramm Service Technician Dave Finkbohnerrsquos semi-annual Schramm Service visit several years ago in conjunction with an authorized Schramm dealer Dan novarra of Western Well supply Dave had the opportunity to address this issue and recommend installation of the Schramm air-COnTrOL system on the T685Ws rig After meeting with Water Task Force management the system was sold as a stand-alone upgrade This would be the first field retrofit of air-COnTrOL
With the assistance of a local ship repair shop Seafix the Schramm Service Team had a facility in which to work that offered protection from endless rain squalls that were faced throughout the installation process With the rig available and a shop to work in it was time to put it all together By the end of the third day all of the components were installed including the view screen in the control panel After a full system test and a short course in air-COnTrOL operation schramm provided Seafix personnel with the necessary service documentation and training to permit local field support looking forward
In the past few years since the original air-COnTrOL installation on Water Task Forcersquos rig there has been only one service issue caused by a damaged sensor that was easily replaced Thanks to the global reach and experience of Schrammrsquos field service team the Water Task Force continues to drill throughout Saipan with outstanding results g
800 east Virginia Ave bull West Chester pA 19380 bull phone 610-696-2500 bull Fax 610-696-6950 bull wwwschramminccom
6 V1 bull Issue 4 bull sprIng 2012
IND
epth
Upcoming Events
ExpominApril 9th - 13th 2012
espacio riesco bull santiago Chile
Mining World russiaJanuary 26th amp 27th 2012
Crocus expo bull Moscow russia
offshore technology ConferenceApril 28th - May 3rd 2012
reliant Arena bull Houston TX
IaDC Drilling onshore Conference amp ExhibitionMay 17th 2012
Omni Houston Hotel Westside bull Houston TX
CanwellMay 23rd - 26th 2012
Hamilton Convention Center bull Hamilton Ontario Canada
basis it makes sense to convert Rig fuel consumption on straight diesel can be a substantial day to day variable cost MTU engines at full load on Schramm Telemast rigs can consume up to 36 gallons per hour at 760 Hp output
Schramm is currently looking into a number of dual fuel conversion
Dual Fuel Engines (continued)
Wampex Mining ExpoJune 6th - 8th 2012
Accra International Conference Centre bull ghana
pGWa summer MeetingJune 8th 2012
Rock of Springs PA
Global petroleum showJune 12th - 14th 2012
stampede park bull Calgary Alberta Canada
NEFtEGaZJune 25th - 29th 2012
expocentre Krasnaya presnya bull Moscow russia
systems that can be factory installed or field retrofit Typical components include
bull gas power valve
bull Air-fuel mixer
bull gas train
bull engine control system
Systems introduce gas into the air flowing into the engine injecting natural gas in between the air cleaner and the turbocharger at a mixture that is lean enough to prevent pre-ignition The airgas mixture is ignited when the piston reaches top dead center and diesel fuel is injected gas flow varies with combustion airflow as controlled by the system The OEM governing system controls diesel fuel requirements
Schramm will keep you posted on developments and future availability gSchramm Telemast Rigs
5V1 bull Issue 4 bull sprIng 2012
IND
epthservice tips with the schramm-Man
4 INDepth bull Quarterly newsletter
pressure to achieve the proper make-up torque and to not over tighten the joint This is the purpose of the torque limiting option on your Schramm drill rig Using the official Schramm Drill Pipe Torque Calculator shown in Figure 4-3 we can determine that the correct pressure setting for the torque limiter should be 2365 psig If your maximum torque capability is 17460 ft-lbs (209528 in-lbs) the pressure setting would be 1180 psig
Try out the Schramm Drill Pipe Torque Calculator today by contacting our Service Team at serviceschramminccom
Now what if you know your drill pipe recommended make-up torque but you donrsquot know your drill rigrsquos maximum torque capability
You must refer to your rig specific hydraulic diagram for these details
Having the torque limiter turned to the ldquoOnrdquo position to make-up joints
Phone 610-696-2500 Email service schramminccom
For additional service questions or to speak with a Service Technician contact us today
IND
epth
The engineerrsquos Handbook states the torque for a 516-
18 nC grade 8 cap screw is 29 ft lbs and a 58-11 nC grade 8 cap screw is 230 ft lbs
Why is torque important The proper tension on threads (torque) insures the strength of the connection and will make two independent items work as one Proper tension also protects the connection against fatigue caused by stress cycles (vibrations) that will create joint failure
now you ask
What does all this have to do with my rig
Do you know what the torque value for your drill pipe thread is Is it 3-1 ApI thread or a 2-78 IF thread
How do I achieve the proper torque for my drill pipe thread joints
In order for the drill string to work as one like any thread connection the proper torque should be applied to the threads at each tool joint If the tool joints are not in proper tension then you are at risk of breaking a thread joint andor losing a drill string
The hydraulic rotary top drive drill rig is a very powerful efficient piece of equipment with a varying amount of rotary torque dependent upon the hydraulic components that are ordered in the rotation circuit The torque of a hydraulic motor measured in inch pounds (in-lb) is equal to pressure (psI) X the motor displacement (insup3rev) divided by 2 X Pi (6282) The hydraulic motors are installed in a rotation gearbox that reduces the speed but increases the mechanical advantage In the case of most schramm gearboxes that ratio is 351 All hydraulic components are given an operating efficiency dependent on the design Under most operating conditions these motors are around 92 efficient Divide the result by 12 to determine ft-lb of torque
3500 psi X 292 insup3rev6282
= 16268 X the gear ratio (351)
= 56938 X component efficiency (92)
= 52382 in-lb 12 inft
= 4365 ft-lb
In the example above (Figure 4-1) a rotation gearbox with a single 292 cu in motor will deliver 4365 ft-lb of torque at 3500 psig If the gearbox is of the two motor design and the volume of the motor remains the same the torque value would double or equate to 8730 ft-lb If the gearbox is of the four motor
design then the torque would increase to a maximum of 17460 ft-lb
The next question should be ldquoHow tight do I make my thread jointrdquo And where do I find this information
Drill pipe thread joint torque values can be found in the tool tech section of the Baker Oil Tools handbook Figure 4-2 shows a sample of the more commonly used thread joint torque values
recommended Make-Up torques
2 38 IF 3400 ft-lbs
2 38 Reg 3700 ft-lbs
2 78 IF 5900 ft-lbs
2 78 Reg 6500 ft-lbs
3 12 Reg 7500 ft-lbs
4 FH 11800 ft-lbs
4 12 Reg 15000 ft-lbs
4 12 FH 17700 ft-lbs
6 58 Reg 43000 ft-lbs
If you are drilling with drill pipe that is equipped with 2-78 IF thread joints you would need 5900 ft-lbs of torque to properly tighten this joint
So What do you do if your drill rig makes up to 8730 ft-lbs (104764 in-lbs) of torque
You would have to limit the hydraulic
Drill pipe Torque How Tight Is Tight enough
steve Hanley The schramm-Man
and drill the bore hole will insure proper tension of all the pipe joints in your drill string By design the torque limiter circuit is only engaged in the clockwise rotation direction Following this drilling practice will leave you sufficient torque for breaking joints loose when removing your drill string from the bore hole
After achieving bore hole completion increasing the make-up torque at the gearbox tool joint will result in the joint breaking at the table reliably Typically the tool joint is set 200 to 300 psi above the drill pipe torque for the drilling process to accomplish this Optional dual torque limiters can make this job easier One set for the makeup torque at the first joint and the other set for drill pipe torque for drilling Proper torque of drill pipe joints makes drilling safer increases drill pipe life and helps to achieve a straight bore hole g
Drill Pipe Torque Calculator Recommended Make-Up Torques
2 38 IF 3400 Ft-lbs 2 38 Reg 3700 Ft-lbs 2 78 IF 5900 Ft-lbs 2 78 Reg 6500 Ft-lbs 3 12 Reg 7500 Ft-lbs 4 FH 11800 Ft-lbs 4 12 Reg 15000 Ft-lbs 4 12 FH 17700 Ft-lbs 6 58 Reg 43000 Ft-lbs
280746
3500
5900
883
MaxRotation Torque inlbs
Compensator pressure
Desired drill pipe torque Ft-lbs
Required rotation gauge pressure
Figure 4-3
Figure 4-1
Figure 4-2
schramm 2 78 IF Drill pipe
air-COnTrOL retrofit (continued)
drilling rig This rig operates and is exposed to 85-95 degree Fahrenheit weather with 90-100 relative humidity 365 days a year Under these conditions the standard pneumatic air control system on the rig needed constant attention
During Schramm Service Technician Dave Finkbohnerrsquos semi-annual Schramm Service visit several years ago in conjunction with an authorized Schramm dealer Dan novarra of Western Well supply Dave had the opportunity to address this issue and recommend installation of the Schramm air-COnTrOL system on the T685Ws rig After meeting with Water Task Force management the system was sold as a stand-alone upgrade This would be the first field retrofit of air-COnTrOL
With the assistance of a local ship repair shop Seafix the Schramm Service Team had a facility in which to work that offered protection from endless rain squalls that were faced throughout the installation process With the rig available and a shop to work in it was time to put it all together By the end of the third day all of the components were installed including the view screen in the control panel After a full system test and a short course in air-COnTrOL operation schramm provided Seafix personnel with the necessary service documentation and training to permit local field support looking forward
In the past few years since the original air-COnTrOL installation on Water Task Forcersquos rig there has been only one service issue caused by a damaged sensor that was easily replaced Thanks to the global reach and experience of Schrammrsquos field service team the Water Task Force continues to drill throughout Saipan with outstanding results g
800 east Virginia Ave bull West Chester pA 19380 bull phone 610-696-2500 bull Fax 610-696-6950 bull wwwschramminccom
6 V1 bull Issue 4 bull sprIng 2012
IND
epth
Upcoming Events
ExpominApril 9th - 13th 2012
espacio riesco bull santiago Chile
Mining World russiaJanuary 26th amp 27th 2012
Crocus expo bull Moscow russia
offshore technology ConferenceApril 28th - May 3rd 2012
reliant Arena bull Houston TX
IaDC Drilling onshore Conference amp ExhibitionMay 17th 2012
Omni Houston Hotel Westside bull Houston TX
CanwellMay 23rd - 26th 2012
Hamilton Convention Center bull Hamilton Ontario Canada
basis it makes sense to convert Rig fuel consumption on straight diesel can be a substantial day to day variable cost MTU engines at full load on Schramm Telemast rigs can consume up to 36 gallons per hour at 760 Hp output
Schramm is currently looking into a number of dual fuel conversion
Dual Fuel Engines (continued)
Wampex Mining ExpoJune 6th - 8th 2012
Accra International Conference Centre bull ghana
pGWa summer MeetingJune 8th 2012
Rock of Springs PA
Global petroleum showJune 12th - 14th 2012
stampede park bull Calgary Alberta Canada
NEFtEGaZJune 25th - 29th 2012
expocentre Krasnaya presnya bull Moscow russia
systems that can be factory installed or field retrofit Typical components include
bull gas power valve
bull Air-fuel mixer
bull gas train
bull engine control system
Systems introduce gas into the air flowing into the engine injecting natural gas in between the air cleaner and the turbocharger at a mixture that is lean enough to prevent pre-ignition The airgas mixture is ignited when the piston reaches top dead center and diesel fuel is injected gas flow varies with combustion airflow as controlled by the system The OEM governing system controls diesel fuel requirements
Schramm will keep you posted on developments and future availability gSchramm Telemast Rigs
800 east Virginia Ave bull West Chester pA 19380 bull phone 610-696-2500 bull Fax 610-696-6950 bull wwwschramminccom
6 V1 bull Issue 4 bull sprIng 2012
IND
epth
Upcoming Events
ExpominApril 9th - 13th 2012
espacio riesco bull santiago Chile
Mining World russiaJanuary 26th amp 27th 2012
Crocus expo bull Moscow russia
offshore technology ConferenceApril 28th - May 3rd 2012
reliant Arena bull Houston TX
IaDC Drilling onshore Conference amp ExhibitionMay 17th 2012
Omni Houston Hotel Westside bull Houston TX
CanwellMay 23rd - 26th 2012
Hamilton Convention Center bull Hamilton Ontario Canada
basis it makes sense to convert Rig fuel consumption on straight diesel can be a substantial day to day variable cost MTU engines at full load on Schramm Telemast rigs can consume up to 36 gallons per hour at 760 Hp output
Schramm is currently looking into a number of dual fuel conversion
Dual Fuel Engines (continued)
Wampex Mining ExpoJune 6th - 8th 2012
Accra International Conference Centre bull ghana
pGWa summer MeetingJune 8th 2012
Rock of Springs PA
Global petroleum showJune 12th - 14th 2012
stampede park bull Calgary Alberta Canada
NEFtEGaZJune 25th - 29th 2012
expocentre Krasnaya presnya bull Moscow russia
systems that can be factory installed or field retrofit Typical components include
bull gas power valve
bull Air-fuel mixer
bull gas train
bull engine control system
Systems introduce gas into the air flowing into the engine injecting natural gas in between the air cleaner and the turbocharger at a mixture that is lean enough to prevent pre-ignition The airgas mixture is ignited when the piston reaches top dead center and diesel fuel is injected gas flow varies with combustion airflow as controlled by the system The OEM governing system controls diesel fuel requirements
Schramm will keep you posted on developments and future availability gSchramm Telemast Rigs