H-SERIESTM HI TORQUEand eXtreme TORQUECONNECTORS

H-SERIESTM HI TORQUEand eXtreme TORQUECONNECTORS

Grant Prideco

Gripping HI TORQUE and eXtreme TORQUE Boxes

• Place the tongs at least 2 inches from the make-up shoulder.

• The threads of an HT55 or XT55 box are about 1-3/4” further away from the make-up shoulder than the threads of an API box. Tongs or top drive torque wrenches should engage the HI TORQUE or eXtreme TORQUE box at the same location in relation to the threads that they would engage an API Joint

• On the Varco PH85 pipe handler torque wrench, this can be done by using 5-1/2” long saver subs. This will put the dies 2” from the box make-up shoulder.

2.00

RecommendedTonging Area

Drill Pipe with HI TORQUE Connector

Hardfacing Weld

Pipe BodyExternal Upset

Tool Joint

Pin

Internal Coating

Elevator Shoulder

Internal Upset

Box

Drill Pipe with eXtreme TORQUE Connector

Hardfacing Weld

Pipe BodyExternal Upset

Tool Joint

Pin

Internal CoatingElevator Shoulder

Internal Upset

Box

Metal Seal on XT-M only

Metal Seal on XT-M only

Grant Prideco HI TORQUE oreXtreme TORQUE Connector

Primary Shoulder

• Secondary shoulder increases torsional strength by at least 40%w Smaller OD and larger ID for slimhole drilling and

improved hydraulicswMore Torsional Strengthw Increased wear allowance

Pin

Box

Secondary ShoulderPin base Box Counterbore

Secondary Shoulders. Do not contact when joint is hand tight. When joint is bucked up to recommended make-up torque, they do contact.

Box Counterbore Section. Compresses in spring like manner when joint is bucked up to recommended make-up torque.

Pin Base. Pin base extends in spring like manner when joint is bucked up to recommended make-up torque

Pin Nose

Primary Shoulder. Provides seal and preload just as on conventional tool joint.

Grant Prideco HI TORQUE Connector

Secondary Shoulders. Do not contact when joint is hand tight. When joint is bucked up to recommended make-up torque, they do contact.

Box Counterbore Section. Compresses in spring like manner when joint is bucked up to recommended make-up torque.

Pin Base. Pin base extends in spring like manner when joint is bucked up to recommended make-up torque

Primary Shoulder. Provides seal and preload just as on conventional tool joint.

Grant Prideco eXtreme TORQUE -Metal Seal Connector

Metal Seal

Comparison of HI TORQUE and Conventional Tool Joint

5 x 2-9/16 HT38

5 x 2-9/16 NC38

Comparison of eXtreme TORQUE and Conventional Tool Joint

5 x 2-9/16 NC38

5 x 2-9/16 XT38

7 X 4 HT55 on 5-1/2” 21.90 Drill Pipe with Grant Prideco H-SERIES Extended Internal Upset

24.8Approx

10.00 13.00

7.000 4.000

15.0Approx

Picking Up Pipe with HI TORQUE or eXtreme TORQUE Connectors for the First Time

• Visually examine the thread protectors for damage such as dents or crushing. If any thread protectors are damaged, inspect the threads on that

joint for damage.

• If the joints were shipped to the rig with rust preventive on the threads, it must be removed. Use soap and water, steam or a vapor degreasing solvent

such as Varsol. It is important that no residue remain on the threads after

cleaning.

• If the joints were shipped to the rig with thread compound, it is not

necessary to remove the thread compound unless there is a suspected

problem.

• Inspect the threads for damage or for foreign material. Damaged

threads or any foreign material on the threads can cause galling or

prevent proper make-up.

• Before the joints are put in service, the threads, the primary make-

up shoulders and secondary make-up shoulders must be coated

with a good quality thread compound.

Picking Up Pipe with HI TORQUE or eXtreme TORQUE Connectors for the First Time

• Thread protectors must be on the joints at all times when the joints are being moved or when bringing the joints up to the rig floor.

• Do not use thread protectors when standing the pipe back.

Picking Up Pipe with HI TORQUE or eXtreme TORQUE Connectors for the First Time

Thread Protectors should be installed prior to moving pipe to prevent connection damage.

Application of Thread Compound toHI TORQUE Connectors

• Apply Thread compound to all contacting surfaces.

• Primary Shoulder• Threads• Secondary Shoulder

• Make sure secondary shoulder is clean and free of drilling fluid solids.

• It may be necessary to rinse drilling fluid off threads before applying compound.

Primary shoulder

Threads

Secondary Shoulder

• Racking pipe will wipe thread compound off pin nose.

Application of Thread Compound toHI TORQUE Connectors

Application of Thread Compound to eXtreme TORQUE Connectors

• Apply Thread compound to all contacting surfaces.

• Primary Shoulder• Threads• Seal Area (XT-M only)• Secondary Shoulder

• Make sure secondary shoulder and seal area is clean and free of drilling fluid solids.

• It may be necessary to rinse drilling fluid off threads before applying compound.

Primary shoulder

Threads

Secondary Shoulder

Seal Area

Apply an even coat of thread compound to all thread, seal and shoulder regions of both pin and box prior to making up…

Keep Thread Compound Covered. Water will lead to thread rust/corrosion when applied to connections.

Step 1: MAKE UP JOINTS AS SLOW AS POSSIBLE, to 100% of the make-up torque.

• Break them out.• If the break-out torque is less than the make-up torque,

the joints do not have to be separated.

Step 2: Make up the joints again to the same torque in step 1.

• Break them out. • Separate the pin and box and reapply thread compound.

Step 3: MAKE UP JOINTS AS SLOW AS POSSIBLE again to the make-up torque in step 1 and they are ready for service.

Tool Joint Break-in

Putting the Joints in Service

• Bucking up tool joints with tongs can put high bending loads in the pipe.

• Review Section B4, Paragraph B of the IADC Drilling Manual, or Paragraph 5.9 of API RP7G about height of tool joint above slips to prevent bending pipe during tonging.

Making up HI TORQUE and eXtreme TORQUE Connectors

• Maintain good alignment when spinning-up. Misalignment can damage the threads.

PinBox

Contact of sharp edgeof pin thread on box flank

IMPROPER STABBING

Ensure correct alignment prior to stabbing. Use stabbing guides to reduce shoulder damage

• Alternate breaks when tripping so that each joint will be broken-out every third trip.

• Monitor break-out torque. The break-out torque should be less than the make-up torque. High break-out torque is an indication of downhole make-up or thread damage.

• Do not let the end of the pin strike the box make-up shoulder when stabbing the pin in the box.

Tripping

• Downhole make-up is caused by the drilling torque exceeding the joint's make up torque. It can be detected by high break-out torque. The break-out torque should be less than the make-up torque.

• If downhole make-up is suspected, punch mark the pin and box next to the make-up shoulders when tripping into the hole.

• If downhole make-up occurs, the position of the punch marks will change.

• Downhole make-up can cause• Compressed box counterbores• Compressed pin noses

Downhole Makeup

Punchmarks

Deter Down-hole makeup by ensuring correct (Recommended) MUT is applied prior to running components down-hole.

Simulated Down-hole makeup.

Excessive torque can lead to belled/ split boxes and necked down pin noses

• The make-up shoulders should be inspected frequently using the same procedure and criteria that is used on conventional joints.

• The make-up shoulder provides the seal and preload for the connections.

• Damage to the make-up shoulder can result in a washout, galling of the shoulders or an improperly made up connection.

• Improper make-up can cause wobble damage or a fatigue failure.

• The pin nose is not a seal.

Shoulder Damage

Rejectable shoulder damage.

Galling / Metal tearing.

Shoulder Dent. Minimize by using Stabbing Guides.

High Break-out Torque

• Sometimes joints are hard to break-out for no apparent reason.

• Downhole make-up• Displacement of thread compound

metallics• Galling

Pin

Box

Pressure Flank

The pin length and box depth of must be correct forproper operation of HT and XT connectors.

The pin length can be checked with a dial Indicatoror depth micrometers. If the pin length is short by 1/32 inch or less, the pin can be repaired by resurfacing the primary shoulder.

If the pin length is short by more than 1/32 inch, the pin must be recut.

If the pin length is too long by 1/32 inch or less, the pin can be repaired by resurfacing the pin nose.

If the pin length is too long by more than 1/32 inch, the pin must be recut.

Pin Nose

Primary Shoulder

Checking Pin Length

Secondary Shoulder

Primary ShoulderThe pin length and box depth of must be correct forproper operation of HT and XT connectors.

The box depth can be checked with a dial Indicatoror depth micrometers. If the box depth is short by 1/32 inch or less, the box can be repaired by resurfacing thesecondary shoulder.

If the box depth is short by more than 1/32 inch, the box must be recut.

If the box depth is too long by 1/32 inch or less, the box can be repaired by resurfacing the primary shoulder.

If the box depth is too long by more than 1/32 inch, the box must be recut.

Checking Box Depth

Torsional yielding of HT or XTConnectors may result in swelling of the box adjacent to the threads.

A straight edge or calipers can beused to detect swelling if the swelled region is not worn away.

Box depth should be checked on overtorqued connections.

Most swollen boxes can be recut with the same loss of length as conventional tool joints.

Checking for Box Swell

The Go/No Go gauge has apin side and a box side.

If the pin is the correct length, the pin nose and primary shoulder will contact the gauge when using the pin side.

Box Side

Primary shoulder

Pin Nose

Checking Pin Length

Pin side

The Go/No Go gauge has apin side and a box side.

If the box is the correct depth, the primary shoulder and secondary shoulder will contact the gauge when using the box side.

Primary Shoulder

Secondary Shoulder

Checking Box Depth

Box side Pin side

Drill String Design and Selection

• Structural Compatibility− Tensile Strength− Torsional Strength− Pressure, Collapse− Bending

• Geometric Compatibility− Fishability− Hydraulics

• Cost− Increase Reliability− Increase Performance− Increase Life