FS_OP_01_Rev02

DEPARTMENT: SPEC NUMBER: DATE:

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

RUNNING AND PULLING GRANT PRIDECO PREMIUM TUBING AND CASING CONNECTIONS 1.0

SCOPE 1.1

2.0

This document offers suggestions to aid in the successful running and pulling of Grant Prideco connections. It is designed to provide insight to avoid the most common causes of pipe and connection damage resulting from improper planning, incorrect rig operations, and inappropriate material handling procedures. Failure to adhere to these guidelines may adversely affect proper connection makeup and/or performance.

PREPARATIONS AND EQUIPMENT 2.1

Accessory equipment 2.1.1

2.2

Elevators 2.2.1

2.3

All accessory equipment and backup equipment, such as crossovers, safety subs, float equipment and packer assemblies, should be inspected first. Since accessories are obtained from several sources, care should be taken to insure that all were threaded with the correct connection. Only accessories threaded by Grant Prideco or one of their licensed manufacture or repair shop facilities should be used. Do not jeopardize your major investment in tubulars or possibly the entire well by using an unauthorized Grant Prideco connection.

Slip-type or spider type elevators are recommended. The slips should be set below the box threads and not over the threads or on the upset. Contact the Grant Prideco engineering department before using collar-pull elevators. Bottleneck elevators should not be used.

Handling Plugs and Safety Clamps 2.3.1

Handling plugs are available for each size weight and type of Grant Prideco connection. Handling plugs are not designed to support more than a single stand of pipe. Handling plug threads must be cared for and maintained. Threads should be cleaned, inspected, and handled so as to prevent damage. To insure proper thread engagement, both the handling plug and pipe box threads should be free of any dirt, paint, and storage compound or thread compound. Plugs should be fully made up by hand then tightened by bumping up with a bar. Handling plugs also provide protection of the box threads from damage by tools or test equipment, which may be run inside the pipe.

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 1 of 19

DEPARTMENT: SPEC NUMBER: DATE:

2.3.2

2.4

2.5

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

On flush joint connections, it is recommended that a safety clamp (wedding band, dog collar) be used in addition to the handling plug. The safety clamp should be used until sufficient weight, or the manufacture rating of the safety clamp is achieved and /or customer’s recommendation as required. The safety clamp shall be removed completely and not allowed to ride the pipe while the pipe is being lowered into the well bore.

Lifting Plugs 2.4.1

Lifting Plugs are designed to support the entire weight of the string. The lifting plugs must be fully made-up, power tight to shoulder to achieve full rated lift capacity.

2.4.2

Proper handling practices and sound judgment must be used at all times to maintain the rated lift capacity of the plug. Damaged lifting plugs should not be used. During lifting operations if the plug is subjected to heavy impact loading, use of the plug should be stopped until an inspection is performed. Additionally, due to cyclic tensile loading of the lift plug, a wet magnetic particle inspection should be performed on the plugs to inspect for fatigue cracks.

Power Tongs, Gauges and Torque Recorders 2.5.1 The tongs should be in good condition with jaws that correctly fit the pipe. 2.5.2

2.6

It is imperative that the make-up torque be accurately measured and controlled. Torque measuring equipment should be in good working order, cover the appropriate range and be properly calibrated. If a snub line is used it should be set at a 90 degree angle to the arm of the tong. If the snub line cannot be set at a 90-degree angle to the arm of the tongs, the make-up reading should be adjusted accordingly.

Thread Protectors and Cleaning 2.6.1

When pipe is stored on the rack or is being moved, the threads should be protected by correct fitting, clean, and properly installed thread protectors. Air and/or Quickie protectors may also be used providing that they do not damage the threads or seals.

2.6.2

Prior to inspection, threads should be thoroughly cleaned and dried. Threads should be free of all dirt, thread or storage compound, solvent residue, water, etc. Do not use diesel for cleaning, metallic brushes or other methods that will scratch or abrade thread and seal surfaces.

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 2 of 19

DEPARTMENT: SPEC NUMBER: DATE:

2.7

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

Thread Inspection 2.7.1 An authorized Grant Prideco Representative must perform thread inspection. Inspect all thread and seal surfaces for damage and corrosion. Minor anomalies on thread and torque shoulder surfaces can be field repaired. Damage on seal surfaces, other than very minor oxidation, is cause for rejection. After repairs, threads must be re-cleaned and dried. Exposed seal surfaces, such as pin nose areas, are particularly susceptible to handling damage. Special care should be taken in inspection of these areas for dings, dents, and/or mashed ends.

2.8

Installing Seal Rings 2.8.1

2.9

Where applicable, seal rings shall be installed after thread inspection. Both the seal ring and the seal ring groove shall be clean and dry prior to installation. Care should be taken to insure that the ring fits properly and is firmly seated into the groove. It is imperative that the seal ring is evaluated for proper fit after the hump has been displaced in the groove. This evaluation shall be conducted by using your finger and going around the entire circumference of the groove. Any abnormal areas of the seal ring must be corrected at this time. Movement of the seal ring axially will assure proper installation, resulting in a snapping sound once the seal ring is in the correct location. The seal ring must be seated the entire circumference after it has been determined that the ring is fitted properly into the groove. Seal rings should not be installed sooner than necessary before make-up of the connection.

Installing PR rings 2.9.1

PR rings are installed in RTS-6PR and RTS-8PR upset Integral Joint Tubing connections. The PR rings are installed to enhance the protection provided by plastic coated pipe, isolating the connection from the internal fluids of the well bore. An insertion tool is required to seat the PR ring. The PR ring is placed in the ID of the box connection. Placing the insertion tool in the box and hitting the insertion tool with a rubber mallet seats the PR ring. The connection may be run without the PR ring, without any detrimental effects to the performance of the connection; however, the void at the internal mating area may cause turbulence resulting in erosion.

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 3 of 19

DEPARTMENT: SPEC NUMBER: DATE:

2.10

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

Installing of an EE ring 2.10.1 EE rings are installed in HFR-1EE (High Fatigue Resistance Revision 1 Environmental Exclusion) threaded and coupled connections. The EE ring is installed prior to stabbing the pin in the coupling, in preparation for connection make-up. The rings are installed to prevent fluid from penetrating into the threaded area of the connection, isolating the connection from external fluids. The EE ring consists of O-ring inside of the outer shell. The EE is installed with the black O-ring facing the threaded area of the box connection. A retaining groove is cut in the face of the coupling, which holds the ring in place. The groove is required to be clean, dry, and free of dirt or debris that would prohibit the ring from seating properly. The EE ring must be properly seated the entire circumference of the groove. The ring must be installed no sooner than necessary prior to the make-up of the connection.

E n v iro n m e n ta l E x c lu s io n R in g

C o u p lin g Face

D o p e G ro o v e

P in

3.0

Thread Locking Procedures 3.1

(NJO, ANJO, (Old) NJO, (New) NJO, NJOM, RTS, FL-4S, SB, BTB, HDL, BIG HDL, STL; Secondary connections - ST-C, ST-P, DS, DSS-HTC, IJ-3SS, IJ-4S, RSU-6, RSU-8, MODIFIED COUPLING, BTB, FLB-4S, FL-21, FL22) 3.1.1

The pin and box connections must be cleaned, dried, and free of contaminates. The seal ring must be removed on connections incorporating a seal ring. Apply thread-lock to the pin threads only (not the seal area of the pin). Thread locking compound must be well worked into the thread form. (A brush is recommended) This will reduce the possibility of the thread-lock progressing into the ID. A uniform coat should be applied, a full 360 degrees, covering approximately ½ of the

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 4 of 19

DEPARTMENT: SPEC NUMBER: DATE:

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

first pin threads or approximately ½ of the first pin threads on both steps. Apply thread compound to the internal seal of the box, covering the area 360 degrees. The connection shall be made up as soon as possible after the thread-lock and thread compound has been applied. A torque in excess of the maximum make-up torque may be required to shoulder the connections. 3.2

TC-4S, and TC-II family, HFR family; Secondary connections - STC-4S, STFI, ST-M, AB-TC, CQS, TC-22 3.2.1

Apply thread compound to the following areas: seal ring groove area, thread below the seal ring groove area, and the metal seal area of the box connection. Thread compound in these areas must be applied per section 3.3.3.1 with the exception of omitting the area before the seal ring groove. Apply thread-locking compound to the remaining area above the seal ring groove. Thread locking compound must be well worked into the thread form. (A brush is recommended.) Leaching of the thread compound and locking compound is acceptable at the mating areas. The pin connection shall be clean and dry prior to make-up.

4.0

RUNNING PROCEDURES 4.1

Pipe Handling 4.1.1 Extreme care should be used when handling pipe. Pipe should not be moved unless the threads are protected with thread protectors and/or handling or lifting plugs. To insure protection of the threads, it is recommended that the pipe be lifted with straps rather than hooks. Single joint elevators are recommended but not necessarily required. If a soft line is used it should always be double wrapped when picking up a joint of pipe.

4.2

Thread Compound 4.2.1

API 5A2 modified, high temperature, high-pressure thread compound is recommended.

4.2.2 After any field repair, apply a Moly-disulfide spray, prior to applying the thread compound. Moly-disulfide is not required otherwise.

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 5 of 19

DEPARTMENT: SPEC NUMBER: DATE:

4.2.3

4.3

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

Some lead-free and metals-free compounds have been evaluated for use on some Grant Prideco connections. (Best-o-Life 2000, Jet Lube Seal Guard, and Best-o-life PTC) Please contact your nearest Grant Prideco representative for additional information.

Compound Application 4.3.1

NJO, ANJO, (Old) NJO, (New) NJO, NJOM 4.3.1.1 Preferred Option 1: A thin even coat of thread compound shall be applied to the entire threaded area (both steps) and seal surface of the box connection. A thin, even coat of thread compound shall also be applied to the metal seal only on the pin. Care should be taken to insure complete and uniform coverage. Thread compound should be well worked into the thread roots with a brush. 4.3.1.2 Option 2 for rig preparation Onshore: A thin, even coat of thread compound shall be applied to the entire threaded area (both steps) and seal surface of the box connection. Kendex may be applied to the pin connection for storage and transportation. Kendex must be wiped off as much as practical prior to stab and make-up.

4.3.2

Big NJO 4.3.2.1 A thin, even coat of thread compound shall be applied to the entire threaded area (both steps) and seal surface of the pin. A thin even coat of thread compound shall be applied to the metal seal only on the box. Care shall be taken to insure complete and uniform coverage. Thread compound shall be well worked into the thread roots with a brush.

4.3.3 RTS, FL-4S, SB, BTB, HDL, BIG HDL, STL, TC-4S, and TC-II family, HFR1, HFR2, Modified Couplings, and Secondary Connections (ST-C, ST-P, DSS-HTC, IJ-3SS, IJ-4S, RSU-6, RSU-8, DS, STC-4S, ST-FI, ST-M, AB-TC, CQS, TC-22, FLB-4S, FL-21) 4.3.3.1 Thread compound should be applied to the entire thread and seal surfaces of both the pin and the box connection. On products with seal rings, particular care should be taken to thoroughly cover the area between the seal ring and the back of the box. Thread compound should be worked well into the thread roots with a brush. Thread compound should fill approximately 1/4 to 1/3 of the thread height. If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 6 of 19

DEPARTMENT: SPEC NUMBER: DATE:

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

4.3.4 HFR1-EE 4.3.4.1 Thread compound shall be applied to the threaded area and metal seal of the pin connection as per section 4.3.3.1. Thread compound shall not be applied to the machined cylinder surface (EE Seal Area) of the external area on the pin. Thread compound shall be applied to the threaded area and metal seal of the box connection only as per section 4.3.3.1. Thread compound shall not be applied to the dope relief groove area. 4.4

Stabbing and Thread Engagement 4.4.1

Stabbing and initial thread engagement is the most critical aspect of running Grant Prideco premium connections. A stabbing guide shall be used on the pipe box thread to prevent damage to thread and seal surfaces. The pipe must be properly positioned and under complete control before stabbing is conducted. The pipe must be in true vertical alignment over the box. Movement or sway of the pipe should be limited to the minimum extent possible. Men on the rig floor and the stabbing board accomplish control of the pipe. Only after the pipe is stabilized and properly positioned, lower the pipe slowly to avoid thread damage. Once the face of the pin is even with the face of the box, the pin connection should be lowered very slowly into the box. This process will allow the stab flank of the pin threads to align with the flank threads of the box and reduce the possibility of mis-stabbing, or cross threading. When a PLS system is utilized to stab the pin in the box, assure that the pin and box are properly aligned prior to make-up. The PLS system shall not restrict the connection from properly rotating during make-up. If the pipe is racked back in doubles or triples it is recommended that a weight compensator be used during the running process.

4.4.2

Remove stabbing guide after stabbing; rotate the pipe by hand to insure proper thread engagement. If the weight of the pipe prohibits turning by hand, turn very slowly with tongs (connection should be free running without torque required) to assure proper thread engagement. Cross threading and misalignment may be corrected now. The stabber must not rock the pipe during initial stab or make-up. In case of a mis-stab, rotating the connection counter-clockwise 1/4 to 1/2 turn will correct the misalignment and give proper thread engagement. Make one or two full turns by hand or slowly, using the power tongs, at about 4 to 6 RPM’s. Snub line shall be slack, or backup shall be released before applying power for initial make-up.

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 7 of 19

DEPARTMENT: SPEC NUMBER: DATE:

4.5

Power Make-up 4.5.1

4.6

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

Power tongs are required. Pipe wrenches, rig tongs or spinning chain make-up are not recommended. Make up at a steady and controlled speed, usually at 10-15 RPM’s for tubing and 8 to 12 RPM’s for casing. Make up to the recommended torque value. A backup tong may be required, until sufficient string weight is developed to prevent the joint from turning in the slips, if the tongs are not integral. Set the power tongs and the backup tongs as close together as possible to prevent bending during make-up. The backup tongs should be of a sufficient width to prevent crushing the pipe body. Do not set the backup tongs over the box threads. Do not latch the elevators on the pipe until the connection is made-up completely.

Make-up Torque 4.6.1

Grant Prideco Technical Specification Sheets provide the torque values for all Grant Prideco Premium connections that require a specific make-up torque. The torque values on the Technical Specification Sheet provide a minimum and maximum recommended torque value. Torque values are recommended and can be affected by field conditions. For torque monitoring equipment or target torque, the average of the two values may be considered the optimum torque; however a connection shall be considered acceptable if the torque is between the minimum and maximum torque value. In isolated cases, the Grant Prideco Field Service Representative has the authority to accept connections, in which the final torque is below the minimum or above the maximum recommended torque at their discretion. The value should not exceed 10% below or above the recommended torque value.

4.6.2 BTB Connections 4.6.2.1 There are no established torque values for BTB connections. The BTB design concept requires that the connection be made up to position. Each pin connection has a “make-up groove mark” machined around the circumference of the pin connection. The “make-up groove mark” may not be visible 360 degrees since it is dependant on the OD and concentricity of the pipe. Optimum make-up is achieved when the face of the coupling is positioned midway of the “make-up groove mark”. The side of the groove facing the pin thread is the minimum position and the side of the groove facing the pipe O.D. is the maximum position. Torque If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 8 of 19

DEPARTMENT: SPEC NUMBER: DATE:

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

values may be established by running ten joints and averaging the torques. The remaining connections may be run to that torque value, also assuring that the face of the coupling is within the limits of the “make-up groove mark”. 4.6.3

Modified Couplings 4.6.3.1 On the first 15 to 20 joints of tubing to be run, mark a 1/8” wide white paint band on the pin end. The front line of this paint band should be at the last scratch (the L4 distance is available from API Standard 5B) and is convenient when the actual location of the “last scratch” is in doubt due to chaser run-out marks. 4.6.3.2 Using extreme care, make-up each of the pre-marked connections and record the torque necessary to bring the paint band flush with coupling face. If any of these connections require a torque in excess of the API maximum torque value to reach the recommended make-up positions, break the connection out and check threads for damage. 4.6.3.3 The average of the torque values determined above should be considered the optimum torque value for that product. The minimum torque should not be less than 75% of the optimum value, while the maximum torque should not exceed 125% of the optimum value. Reference: Typical make-up torque for a modified coupling, to achieve the correct position, is approximately 75% of the recommended torque for a non-modified coupling.

4.7

Breakout 4.7.1

Unlatch the elevators before breakout. Locate the connection to be broken out at a comfortable working height above the slips. Set the power tongs and the backup tongs or slips as close together as possible to prevent bending during breakout. Maintain vertical alignment and control of pipe. This is accomplished by a man on the stabbing board. Slowly apply the torque required to break the connection. (Never use a hammer or other hard object to beat on a connection. The resultant damage could lead to a failure.) Depending on the torque required, movement of the pipe is sometimes initiated by the initial break. Pipe movement shall be stopped before additional turning of the connection is continued.

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 9 of 19

DEPARTMENT: SPEC NUMBER: DATE:

4.7.2

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

Maintain a steady, controlled speed until the pin jumps inside the box. A single joint elevator is recommended to reduce misalignment during the lifting process. A weight compensator may be used to reduce thread galling during breakout. With the compensator load adjusted to thread loading, thread damage should be eliminated. In lieu of a compensator, insure that the spring hook is adjusted to keep the pin from jumping out of the box. If the pipe is being pulled or racked back in doubles or triples it is recommended that a weight compensator be used during the pulling and running process.

4.7.3

4.8

Stop rotation immediately when the pin jumps inside the box. For RTS, SB, RSU, STC, STP, NJO, ANJO, (Old) NJO, (New) NJO, NJOM, and Big NJO continue rotation ¼ to ½ a turn prior to lifting the pin out of the box. A stabbing guide shall be used prior to lifting the pin out of the box. The pin must be carefully lifted out of the box to avoid damage. This is critical on heavy weight pipe or when pulling doubles or triples. Remove the power tongs before lifting the pin out of the box. Do not lift the exposed pin threads through the tongs. Before moving the pipe further, protect the threads by installing a clean, dry thread protector or handling plug as appropriate.

Torque Monitoring Equipment 4.8.1

The use of a computerized torque monitoring system is not a requirement for make-up of Grant Prideco connections; however it is recommended for internally shouldered connections. The use of such a system provides many benefits. These include a permanent record of each connection's make-up characteristics, shoulder torque and final torque. This information can be used to conduct evaluations at the rig site or for future reference, studies and evaluations. Torque monitoring services usually monitor torque, time and turns. To evaluate the make-up characteristics of a connection, a torque versus turn plot is preferred over that of a torque versus time. There are no turn criteria for acceptance of any Grant Prideco connection. Major anomalies in the characteristic of the make-up curve or a shoulder torque that is outside of the normal range indicates that an improper make-up is suspect. Connections displaying these characteristics should be broken out, inspected, repaired if necessary and remade.

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 10 of 19

DEPARTMENT: SPEC NUMBER: DATE:

4.8.2

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

Setting up of torque monitoring equipment 4.8.2.1

The Grant Prideco Technical Specification Sheets provide the required minimum and maximum make-up torque values required for the connection.

4.8.2.2

The reference or the starting torque must be set as low as practical for tubing sizes (2 3/8” - 5”) and 5% of the minimum torque value for casing sizes.

4.8.2.3

The minimum make-up torque as specified on the Grant Prideco Technical Specification Sheet shall be used for the dump value torque.

4.8.2.4

Graph size and scale shall be set to produce clear representation of a make-up signature and verification of torque values – no more than two make-up curves shall be displayed on a sheet of paper.

4.8.2.5

Shoulder torque values may be set at 10% to 80% of the minimum torque value specified on the Grant Prideco Specification Sheet for tapered interference connection.

4.8.2.6

Shoulder torques values may be set as low as practical for two step non interference connections

4.8.2.7

Determining the average distribution and standard deviation of the shoulder torque on the initial first fifty connections may also set shoulder torque values. The minimum value of the shoulder torque may be set at the average shoulder torque value minus two standard deviations and the corresponding maximum value may be set at the average shoulder torque plus two standard deviations. The remaining connections may be run to these established values.

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 11 of 19

DEPARTMENT: SPEC NUMBER: DATE:

5.0

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

DISPOSITION OF MAKE-UP SIGNATURES 5.1

The intent is to provide guidelines that will assist in the evaluation of make-up signatures. Any connection’s signature that is abnormal or inconsistent must be evaluated until a confident level is established. It is the Grant Prideco service representative’s responsibility for the acceptances of any make-up curves. In case of a discrepancy, the final decision is his responsibility.

5.2

The connection’s make-up signatures shall be evaluated based on the following conditions: 5.2.1

If the minimum specified make-up torque is not obtained the connection shall be broken out completely.

M A X IM U M M A K E U P T O R QU E M IN I M U M M A K E U P T O R QU E

M A X IM U M S H OU L D E R T OR Q U E

T O R Q U E

SH OU L D E R T O R Q U E

M IN IM U M SH O U L D ER T O R QU E

R E F. T O R QU E T U R N /T IM E

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 12 of 19

DEPARTMENT: SPEC NUMBER: DATE:

5.2.2

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

If the maximum specified make-up torque is exceeded the connection shall be broken out.

M A X IM U M F IN A L T O R Q U E M IN IM U M

F IN A L T O R Q U E

M A X IM U M S H O U L D E R T O R Q U E

T O R Q U E

SHO ULDER TO RQ UE

M IN IM U M S H O U L D E R T O R Q U E

REF. TO RQ UE T U R N /T IM E

5.2.3

If the torque shoulder does not engage (no shoulder) the connection shall be broken out.

M A X IM U M F IN A L T O R Q U E M IN IM U M

F IN A L T O R Q U E

M A X IM U M S H O U L D E R T O R Q U E

T O R Q U E

NO SHOULDER

M IN IM U M S H O U L D E R T O R Q U E

REF. TORQUE T U R N /T IM E

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 13 of 19

DEPARTMENT: SPEC NUMBER: DATE:

5.2.4

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

If the shoulder torque is outside of the specified torque window (below or above) the connection shall be broken out.

M A X IM U M F IN A L T O R Q U E M IN IM U M

F IN A L T O R Q U E

H IG H S H O U L D E R T O R Q U E M A X IM U M S H O U L D E R T O R Q U E

T O R Q U E

LO W

S H O U LD E R TO R Q U E

M IN IM U M S H O U L D E R T O R Q U E

R E F. TO R Q U E T U R N /T IM E

5.2.5

If the rotation was interrupted during make-up (i.e. tong stoppage, indication of slippage, or bumping) the connection shall be broken out.

M A X IM U M F IN A L T O R Q U E M IN IM U M

F IN A L T O R Q U E

M A X IM U M S H O U L D E R T O R Q U E

T O R Q U E

SHO ULD ER TO RQ UE

M IN IM U M S H O U L D E R T O R Q U E R EF. TO RQ UE T U R N /T IM E

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 14 of 19

DEPARTMENT: SPEC NUMBER: DATE:

5.2.6

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

If the make-up signature indicates yielding or deformation of the torque shoulder, the connection shall be broken and the pin and box connection shall be rejected and marked appropriately.

M A X IM U M F IN A L T O R Q U E M IN IM U M

F IN A L T O R Q U E

M A X IM U M S H O U L D E R T O R Q U E

T O R Q U E

SHO ULDER TO RQ UE

M IN IM U M S H O U L D E R T O R Q U E REF. TORQUE T U R N /T IM E

5.3 Criteria for back-out evaluation and sequential make-up acceptance of an questionable make-up signature: 5.3.1

If the connection make-up signature is rejected, the pin shall be broken out and disassembled

5.3.2

The pin and box shall be thoroughly cleaned and visually inspected and if applicable, the seal ring shall be removed from the box connection. If no detrimental damage (galling on the thread) is observed, and the seal ring is not shredded as a result of make-up, the connection shall be reassembled. Any connection with seal damage shall be rejected and marked appropriately.

5.3.3 If second make-up signature is acceptable or similar to the first makeup and the shoulder torque and final torque are within acceptable limits, the connection shall be considered acceptable.

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 15 of 19

DEPARTMENT: SPEC NUMBER: DATE:

5.3.4

5.4

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

If the seal ring is shredded or dislodged from the groove, replace the seal ring, if applicable, and reassemble the connection. Make-up signature must be acceptable.

Make-up signatures of this nature must always be broken out and evaluated based on section 5.3: 5.4.1 Erratic make-up curve, build-up and drop-off in torque. 5.4.2 Excessive build-up and drop off in torque prior to shouldering.

T O R Q U E

M A X IM U M

F IN A L T O R Q U E

M IN IM U M

F IN A L T O R Q U E

M A X IM U M

S H O U L D E R

T O R Q U E

5.4.3 Erratic torque curve prior to shouldering. 5.5

S H O U L D E R

T O R Q U E

Typical make up signature, however make up conditions may alter the shape of the curve. M IN IM U M

S H O U L D E R

T O R Q U E

R E F . T O R Q U E

T U R N /T IM E

5.4.2 Excessive torque build-up and drop-off prior to shouldering.

M A X IM U M F IN A L T O R Q U E M IN IM U M

F IN A L T O R Q U E

M A X IM U M S H O U L D E R T O R Q U E

T O R Q U E

SHOULDER TO RQ UE

M IN IM U M S H O U L D E R T O R Q U E REF. TORQUE T U R N /T IM E

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 16 of 19

DEPARTMENT: SPEC NUMBER: DATE:

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

5.4.3 Erratic torque curve prior to shouldering.

M A X IM U M M A K E U P T O R Q U E M I N IM U M M A K E U P T O R Q U E

M A X IM U M S H O U L D E R T O R Q U E

T O R Q U E

SHOULDER TO RQ UE

M I N IM U M S H O U L D E R T O R Q U E R EF. TO R Q U E T U R N /T IM E

5.5

Typical make-up signature (Connection with thread interference), however make-up conditions may alter the shape of the curve.

M A X IM U M F I N A L T O R Q U E M IN IM U M

F IN A L T O R Q U E

M A X IM U M S H O U L D E R T O R Q U E

T O R Q U E

SH O U LD ER TO RQ UE

M IN IM U M S H O U L D E R T O R Q U E REF. TORQUE T U R N /T IM E

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 17 of 19

DEPARTMENT: SPEC NUMBER: DATE:

5.6

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

Typical make-up signature (Connection with non-interference thread), however make-up conditions may alter the shape of the curve.

M a x im u m F in a l T o r q u e M in im u m F in a l T o r q u e

M a x im u m s h o u ld e r t o r q u e

Torque S h o u ld e r to r q u e T u r n /T im e

6.0

COMMON CAUSES OF THREAD DAMAGE 6.1

Insufficient or improperly applied thread compound. This is especially true for improper thread compound application between the seal ring and the back of the box.

6.2

Misalignment from vertical during stabbing, make-up or break-out.

6.3

Rocking pipe to correct cross threading.

6.4

Continued rotation of pipe after threads have disengaged during pulling.

6.5

Setting backup tongs over box threads.

6.6

Dirty threads and/or dirty thread compound.

6.7

Arc burning on threads during magnetic particle inspection.

6.8

Improper handling of pipe during storage and shipping.

6.9

Lack of proper care while running or pulling pipe.

6.10

Use of accessories with non-authorized Grant Prideco type threads.

6.11

Improperly installed seal rings.

6.12

Over torque.

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 18 of 19

DEPARTMENT: SPEC NUMBER: DATE:

7.0

FIELD SERVICES FS-OP-01, REV. 02 July 1, 2003

CONTACTS Grant Prideco Field Service Headquarters 5301 Polk Street, Building 7 Houston Texas USA 77023 Phone: 1-713-924-2832 (24 hour) Fax: 1-713-924-2847 Grant Prideco Field Service Office 229 Luke Street Lafayette, Louisiana USA 70506 Phone: 1-337-232-3098 (24 hour) Fax: 1-337-261-1066

If the printed format of this document does not display approval signature or initials, the document is uncontrolled. Current revision level can be determined through the Grant Prideco Intranet or another controlled source.

Copyright 2001 Grant Prideco. All Rights Reserved

Page 19 of 19