A Drill Pipe Management

Why Do You Need A Drill Pipe Management Program?
Drill Pipe Is Your Single Largest Investment
- TAKE CARE OF IT
Increase The Return On Your Investment
Reduce Costly Failures
Conserve Capital
Enhance Your Company Image With Your Customers

Drill Pipe Care and Handing
Offshore

Drill Pipe Tool Joint
Identification

Old API Marking System
For Drill Pipe

New API Marking System
For Standard Wall Drill Pipe

Refer to API RP7G Tables 8-9 for Mechanical Properties of New Tool Joints and Drill Pipe
The number in the drill pipe grade is the tensile yield strength of that grade.
Example: Grade S-135 is 135,000 psi minimum yield strength.
The weight is pounds per foot weight of the drill pipe.
Example: 19.50# is 19.50 pounds per foot.
Drill Pipe
Tool Joints

New API Marking System
For Heavy Wall Drill Pipe

Tool Joint Identification
Of Heavy Wall Drill Pipe

Weight and Grade Codes

API Pin Neck Marking System

Tool Joint Pin Neck Marking

Check torque gauge and make sure it is working properly
- Don’t guess!
Clean and dry each connection.
Dope threads and sealing shoulders with a good quality, clean, tool joint thread compound.
Stab connection and make up s-l-o-w-l-y.
Connection makeup is typically to 80% of the manufacturers torque.
- Don’t guess, look it up!
Breakout and spin out s-l-o-w-l-y.
Wipe off connections and inspect threads and shoulders for damage.
Re-dope threads and sealing shoulders.
Stab connection and make up s-l-o-w-l-y.
Connection makeup is typically to 90% of the manufacturers torque.
- Don’t guess, look it up!
Tool Joint Makeup and Breakout Procedures
New and Re-cut Connections

Recommended
Thread Protectors

Be Consistent

Leave Thread Protectors on when Picking Up or Laying Down

Remove Box Thread Protector and Insert Rabbit

Be Sure of that
Tool Joint Compound

Keep Contaminants Out Of Tool Joint Compound

This is Not Tool Joint Compound
It is Grease for Slips

Pipe Handler
Lifts and Positions Joint

Remove Pin End Protector

Use a Neoprene Rabbit
Not Steel

Wipe Old Tool Joint Compound

Inspect Threads and
Sealing Shoulder

Improper Application of
Tool Joint Compound

Proper Application of
Tool Joint Compound

This is What You Don’t Want
Dry Connection

Clean Drill Pipe ID

Internal Corrosion
Pitting

Clean Drill Pipe OD with a Wiper

External Corrosion
Pitting

Proper Racking of Drill Pipe in Stands

Must Use Protectors While in Stands

Proper Stabbing is Critical

Improper Stabbing

This Is What You DON’T Want

Stabbing Guide

Improper Slip Installation

Cleaning Slips

Slip Maintenance

Slip Area Damage

Slip Cuts

Crack in Slip Cuts

Use a Spinner
for Initial Make-up

Tong Die Maintenance

Proper Position
Iron Roughneck

Pipe Handling System
- Roller Maintenance

Pipe Handling System
- Die Maintenance

Pipe Handling System
- Worn Roller

Pipe Conveyor System
- Maintain Conveyor

Maintain Pipe Handling
Equipment

Inspect Hooks Periodically

Monitor Your Drilling Controls
Rotary Speed
Torque
Weight on Bit

An Effect of Over Torque

Proper Storage of Drill Pipe

Improper Storage of Drill Pipe

Proper Storage of Subs

Lifting Drill Pipe With Slings

Use Spreader Bar With Slings

Handle Drill Pipe With Slings
NEVER Use Hooks Or Rods

Tool Joint OD Wear
New Down Grade Difference
5 ½ S 24.70 # 7 ½ 7 1/32 15/32
5 7/8 S 23.40 # 7 6 15/32 17/32
6 5/8 S 25.20 # 8 ½ 7 29/32 19/32

Check Your Hardband Condition

Date: ____________ Tuboscope Inspector _____________________________
Rig No.: ____________
Rig Location: ______________ Oil Company: _______________________________
Description Of Drill Pipe:
Size: 5 Grade: X-95 Weight: 19.50 Connection: NC 50
Hardband Condition: Drill Pipe
No. of joints requiring hardbanding: ____ Average box tool joint OD: ______
No. of joints requiring tool joint rebuild: ______
Caliper Settings For Hardbanding
3 ½”, 13.30 & 15.50#, NC-38 connections – 4 13/16” **
E-75, 13.30# - 4 9/16” **
4 ½”, 16.60 & 20.00#, NC-46 connections – 6 1/16” ** – ALL
5”, 19.50 & 25.60#, NC-50 connections – 6 7/16” ** – ALL
** Caliper settings were based on new tool joint OD less 3/16”. Field hardband units typically deposit 1/8” to 3/16” of hardband material, cumulatively, on the tool joint.. Exceeding new tool joint OD can result in fishing problems and elevator damage.
Tong Space Minimums:
Box Tool Joint – 9-1/2” (includes 3” hardband allowance) Drill Collars require Hard banding – Yes No
Pin Tool Joint – 6-1/2” If yes, how many and what size
No. of joints with short boxes:
No. of joints with short pins: HWDP require Hard banding – Yes No
Average box tool joint tong space: ______
Average pin tool joint tong space: _______
Used Drill Pipe Hardband Condition Report

Check Condition
Shoulders And Bevels

Chrome Alloy Hardband
Drill Pipe Hardband
TCS 8000 – Box End
No Cracking No Spalling
Casing Friendly
Can Be Reapplied
Hardness 50 – 54 HRC

Check Straightness Of
Drill Pipe

NEVER Use Steel Rods Or Hooks To Move Drill Pipe

Inspect Condition Of
Internal Coating

How To Minimize Corrosion
In The Drill Stem
Control the drilling fluid pH. A pH of 9.5 or higher will deter the corrosion of steel in water-base systems containing dissolved O2
Use proper inhibitors/oxygen scavengers particularly with low pH, low solids drilling fluids.
Use plastic coated pipe and a proven re-coating program.
Use de-gassers/de-sanders to remove dissolved gases and abrasives.
Maintain tight pump connections and reduce oxygen intake.
Minimize stress concentrators such as slip/tong marks, gouges, notches, etc.

How To Minimize Sulfide Stress Cracking In The Drill Stem
When practical, maintain a pH of 10 or higher.
Chemically treat before encountering H2S.
Use the lowest grade drill pipe that will withstand the required drilling conditions.
Reduce stresses by using thicker walled components.
Minimize stress concentrators.
After H2S exposure, use care in pipe handling. Avoid sudden shocks and high loads.
Use oil-based mud to create an oil-wet metal. Agents that cause corrosion in water (dissolved salts, dissolved gases, and acids) do not damage oil-wet metal.

API/IADC Drill Pipe
Failure Study
NUMBER OF FAILURES REPORTED …………………….1,801 JANUARY 1, 1988 THROUGH SEPTEMBER 1, 1990
NUMBER OF REPORTING CONTRACTORS …………….. 16
NUMBER OF REPORTING OIL COMPANIES ..………….. 4
NUMBER OF DRILLING RIGS INVOLVED ………………. 200 (ESTIMATED)
PERCENT OF FAILURES WITHIN 10” OF INTERNAL UPSET RUNOUT ………………………… 85%
FAILURES DIVIDED - PIN/BOX ………………………… 65% BOX - 35% PIN 60% OD 40% ID

I.D. Fatigue Cracks
Upset Run-Out Zone

Washout - Box

Washout - Pin

Electromagnetic Inspection
Evaluation Of TUBE BODY For Imperfections
Detects - ID/OD TUBE BODY Fatigue Cracking
Detects - ID/OD TUBE BODY Corrosion Pitting
Detects - TUBE BODY Wall Thickness Changes

Ultrasonic
End Area Inspection
Shear Wave
Detection Of Fatigue Cracks In Upset Run-out
Compression Wave
Detection Of Corrosion Pitting In Upset Run-out
Detection Of Wall Reduction In Upset Run-out

Shear Wave Ultrasonic

Compression Wave Ultrasonic

Benefits Of Ultrasonic
End Area Inspection
Detects Minute O.D./I.D. Fatigue Cracks Throughout The Upset Run-out Zone
Detects Corrosion Pitting
Throughout The Upset Run-out Zone
Detects Wall Thickness Reduction Throughout The Upset Run-out Zone
Reduces Used Drill Pipe Inspection Cost
Capable Of Inspecting Heavy-Wall Drill Pipe

Truscope® AS
New Non-Tool Jointed Drill Pipe

Your Drill Pipe Management Company

Tuboscope would like to express special thanks to both Conoco Inc. and Transocean Offshore Deepwater Drilling Inc. for providing access to the Deepwater Pathfinder Drill Ship.
Thank You