Download Heavy Weight Drillpipe PDF

TitleHeavy Weight Drillpipe
Tags Pipe (Fluid Conveyance) Stress (Mechanics) Fracture Yield (Engineering)
File Size775.6 KB
Total Pages10
Document Text Contents
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heavy weight drill pipe

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heavy weight drill pipe

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111


Minimum Minimum
Yield Strength tensile Strength

psi psi

tube 55,000 95,000

tool Joint 120,000 140,000

Traceability

Material and process traceability are maintained for each Heavy Weight Drill Pipe component. For the tool joints, the

mill material certifications are confirmed by incoming testing and each tool joint blank is given a numbered heat

code. This code is traceable through the manufacturing process. The heavy weight drill pipe tube is given a perma-

nent identification number.

Cold Rolling

Drill pipe undergoes repeated, severe tensile stresses during a drilling operation. These cyclic stresses are particularly

focused on the thread roots and can cause pipe failure. Grant Prideco helps alleviate this problem by compressing (cold

rolling) the thread roots on every piece of heavy weight drill pipe. Because the threads are in a compressed state to begin

with, the endurance limit to bending forces is increased, thereby decreasing fatigue.

Mechanical properties for tool joint materials are
tabulated on page 18 of this catalog.

G
rant Prideco Heavy Weight Drill Pipe is manufactured by

welding extra-long tool joints to heavy wall tubes.

Standard heavy weight tool joints are manufactured from

AISI 4142H-4145H modified drill collar material.
The heavy weight pipe body is manufactured from AISI 1340
material. Extra-long tool joints are designed to provide increased

space for connection rework.

© Grant Prideco. All rights reserved. December 2003

Heavy Weight
drill Pipe Mechanical Properties

MATERIALS

H e a V Y W e i G H t d r i L L P i P e

API Specifications

Heavy Weight Drill Pipe is manufactured in compliance with the following API standards, as applicable:

aPi Specification 7 Latest edition

aPi recommended Practice 7G Latest edition

aPi Specification Q1 Latest edition

Page 4

112 © Grant Prideco. All rights reserved. December 2003

t
hick-walled pipe, called Heavy

Weight Drill Pipe (HWDP), was

developed to provided a gradual

transition from the heavy drill collars to the

relatively lightweight drill pipe. This inter-

mediate-weight pipe has a wall thickness of

approximately 1”, and helps prevent stress
concentration at the top of the drill collar.

It also allows you to drill at higher rpms,

reducing torque and differential pressure

sticking.

HWDP is intended primarily for directional

drilling. Because it bends easily, it simplifies

directional control and minimizes connection

fatigue problems common to high-angle or

horizontal drilling. The reduced number of

pipe failures and increased drill-stem ser-

vice also make HWDP appropriate for

some straight-hole applications.

Various combinations of HWDP, drill

collars, and standard drill string can be

created to meet the challenge of severe

drilling conditions.

24”

26”

24”

tool Joint od d

B
Upset

diameter

nominal Size a

c
Wear Section

Upset diameter

B
elevator Upset

diameter

180

180

31’

G r a n t P r i d e c o

HEAVY WEIGHT DRILL PIPE

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113

While every effort has been made to insure the accuracy of the tables herein, this material is presented as a reference guide only. The technical information contained
herein should not be construed as a recommendation. Grant Prideco cannot assume responsibility for the results obtained through the use of this material. No expressed
or implied warranty is intended.

Heavy Weight drill Pipe


nominal Wall Section Spiral end tensile torsional connection tensile torsional Per Make-
up
Size id thick- area Modulus Upsets Upsets Yield Yield Size and od id Yield Yield Per Joint torque
(a) ness (sq in) (cu in) (c) (B) (lb) (ft-lb) type (d) (lb) (ft-lb) foot (31 ft) (ft-lb)


2

7/8 1 1/2 0.688 4.727 2.161 3 5/16 2 15/16 520,000 22,400 NC 26 (2 3/8 IF) 3 3/8 1 1/2 357,700 6,300 17.26 535 3,800


3 1/2 2 1/16 0.719 6.282 3.702 4 3 7/8 345,500 19,600 NC 38 (3 1/2 IF) 4 3/4 2 1/8 842,400 19,200 25.65 795 11,500


NC 38 (3 1/2 IF) 4 3/4 790,400 19,200 23.48 728 11,500
3 1/2 2 1/4 0.625 5.645 3.490 4 3 7/8 310,500 18,500 HT38 4 7/8 2 1/4 790,400 34,200 23.96 743 20,500


XT39 4 7/8 871,400 40,700 23.96 743 24,400


4 2 9/16 0.719 7.411 5.225 4 1/2 4 3/16 407,600 27,600 NC 40 (4 FH) 5 1/4 2 9/16 838,300 27,800 29.92 928 14,600
XT39 4 7/8 729,700 37,000 28.40 880 22,200


4 1/2 2 3/4 0.875 9.965 7.698 5 4 11/16 548,100 40,700 NC 46 (4 IF) 6 1/4 2 13/16 1,151,00 43,600 41.45 1,285 22,500



5 3 1.000 12.666 10.681 5 1/2 5 1/8 691,200 56,500 NC 50 (4 1/2 IF) 6 5/8 3 1416,200 57,800 50.38 1,562 30,000
HT50 88,800 53,300


5 1/2 3 1/4 1.125 15.463 14.342 6 5 11/16 850,400 75,900 5 1/2 FH 7 1/4 3 1/4 1,778,300 78,700 61.63 1,911 41, 2 0 0
HT55 115,100 69,000


5 7/8 4 0.938 14.542 15.630 6 3/8 6 799,800 82,700 XT57 7 4 1,403,100 106,200 57.42 1,780 63,700


6 5/8 4 1/2 1.063 18.574 22.476 7 1/4 6 15/16 1,021,600 118,900 6 5/8 FH 8 4 1/2 1,896,100 87,900 71.43 2,214 50,500

tube tool Joint Weight (lb)

nominal tube
dimensions

Mechanical
Properties tube

Mechanical
Properties
tool Joint

approx.
incl. tube &
tool Joints

NOTE: 2 7/8” HWDP is manufactured integral only (non-welded).

H e a V Y W e i G H t d r i L L P i P e

Page 6

114 © Grant Prideco. All rights reserved. December 2003

G
rant Prideco developed Tri-Spiral™

Heavy Weight Drill Pipe for applications

where standard heavy weight drill pipe

can fail–extended reach or horizontal drilling.

The severe bending stresses and hole-wall con-

tact are reduced by three spiral upsets that are

equally spaced between tool joints. The upset

design helps reduce buckling and differential

sticking, as well as torque and drag. Spiraling

the upsets also helps move the cuttings off the

low side of the hole for better hole cleaning.

Tri-Spiral™ Heavy Weight Drill Pipe features

more weight per joint and better hole cleaning

characteristics than standard heavy weight drill

pipe, providing optimum performance in

severe drilling conditions.

24”

24”

26”

26”

26”

d
Pin tool

Joint

c
Spiral
Upset

c
center

Spiral Upset

c
Spiral
Upset

d
Box tool

Joint

B
elevator Upset

diameter

B
Upset

diameter

a
nominal

Size

31’
nominal
Length

G r a n t P r i d e c o

TRI-SPIRALTM HEAVY WEIGHT DRILL PIPE

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115

tri-Spiral Heavy Weight drill Pipe


nominal Wall Section Spiral end tensile torsional connection tensile torsional Per Make-up
Size id thick- area Modulus Upsets Upsets Yield Yield Size and od id Yield Yield Per Joint torque
(a) ness (sq in) (cu in) (c) (B) (lb) (ft-lb) type (d) (lb) (ft-lb) foot (31 ft) (ft-lb)


2

7/8 1 1/2 0.688 4.727 2.161 3 5/16 2 15/16 520,000 22,900 NC 26 (2 3/8 IF) 3 3/8 1 1/2 357,700 6,300 18.22 565 3,800


3 1/2 2 1/16 0.719 6.282 3.702 4 3 7/8 345,500 19,600 NC 38 (3 1/2 IF) 4 3/4 2 1/8 842,400 19,200 27.05 839 11,500


NC 38 (3 1/2 IF) 4 3/4 790,900 19,200 24.88 771 11,500
3 1/2 2 1/4 0.625 5.645 3.490 4 3 7/8 310,500 18,500 HT38 4 7/8 2 1/4 790,900 34,200 25.36 786 20.500
XT39 4 7/8 871,400 40,700 25.36 786 24,400


4 2 9/16 0.719 7.411 5.225 4 1/2 4 3/16 407,600 27,600 NC 40 (4 FH) 5 1/4 2 9/16 838,300 27,800 31.51 977 14,600
XT39 4 7/8 729,700 37,000 29.99 930 22,200


4 1/2 2 3/4 0.875 9.965 7.698 5 4 11/16 548,100 40,700 NC 46 (4 IF) 6 1/4 2 13/16 1,151,100 43,600 43.31 1,343 2 2 , 5 0 0



5 3 1.000 12.566 10.681 5 1/2 5 1/8 691,200 56,500 NC 50 (4 1/2 IF) 6 5/8 3 1,416,200 57,800 52.34 1,623 30,000
HT50 88,800 53,300


5 1/2 3 1/4 1.125 15.463 14.342 6 5 11/16 850,400 75,900 5 1/2 FH 7 1/4 3 1/4 1,778,300 78,700 63.78 1,977 41,200
HT55 115,100 69,000


5 7/8 4 0.938 14.542 15.630 6 3/8 6 799,800 82,700 XT57 7 4 1,403,100 106,200 57.42 1,780 63,700


6 5/8 4 1/2 1.063 18.574 22.476 7 1/4 6 15/16 1,021,600 118,850 6 5/8 FH 8 4 1/2 1,896,100 87,900 74.67 2,315 50,500

tube tool Joint Weight (lb)

nominal tube
dimensions

Mechanical
Properties tube

Mechanical
Properties
tool Joint

approx.
incl. tube &
tool Joints

While every effort has been made to insure the accuracy of the tables herein, this material is presented as a reference guide only. The technical information contained
herein should not be construed as a recommendation. Grant Prideco cannot assume responsibility for the results obtained through the use of this material. No expressed
or implied warranty is intended.

NOTE: 2 7/8” Tri-Spiral is manufactured integral only (non-welded).

H e a V Y W e i G H t d r i L L P i P e

Page 8

116 © Grant Prideco. All rights reserved. December 2003

S
piral-WateTM drill pipe, spiraled heavy-wall

drill pipe, is designed to handle maximum

stress to save time and reduce drilling costs-

especially in tough drilling environments.

Intermediate drill string members are constantly

subjected to some of the most severe tasks in drill-

ing today. The critical transition zone between stiff,

heavy drill collars (under compression) and the

light, more flexible drill pipe (in tension) can be too

much for conventional heavy-wall drill pipe to han-

dle.

Spiral-WateTM drill pipe’s unique patented spiral

design reduces differential sticking problems, mini-

mizes wear and improves circulation. Precision tool

joint alignment cuts down on excessive tool joint

wear for longer service life and reduced fatigue.

d
Box tool

Joint

B
elevator Upset

diameter

c
Spiral
Upset

a
nominal

Size

d
Pin tool

Joint

24”

24”

31’
nominal
Length

42”

21’4”

11”

G r a n t P r i d e c o

SPIRAL-WATETM DRILL PIPE

Page 9

117

While every effort has been made to insure the accuracy of the tables herein, this material is presented as a reference guide only. The technical information contained
herein should not be construed as a recommendation. Grant Prideco cannot assume responsibility for the results obtained through the use of this material. No expressed
or implied warranty is intended.

Spiral-Wate drill Pipe


nominal Wall Section Spiral end tensile torsional connection tensile torsional Per Make-up
Size id thick- area Modulus Upsets Upsets Yield Yield Size and od id Yield Yield Per Joint torque
(a) ness (sq in) (cu in) (c) (B) (lb) (ft-lb) type (d) (lb) (ft-lb) foot (31 ft) (ft-lb)


3 3/16 2 0.594 4.840 2.687 5 5/16 3 3/16 532,400 28,400 SLH90 3 7/8 2 407,000 12,000 19.48 604 6,300


NC 38 (3 1/2 IF) 790,000 22,900 13,100
3 1/2 2 1/4 0.625 5.645 3.490 4 3 5/8 310,500 18,500 HT38 4 7/8 2 1/4 790,000 34,200 30.39 942 20,500
XT39 871,400 40,700 24,400


4 2 9/16 0.719 7.411 5.225 4 1/2 4 1/8 407,600 27,600 NC 40 (4 FH) 5 2 9/16 838,300 20,900 28.90 896 12,600
XT39 729,700 40,800 24,500


4 1/2 2 3/4 0.875 9.965 7.698 5 4 5/8 548,100 40,700 NC 46 (4 IF) 6 1/4 2 13/16 1,151,100 43,600 49.53 1,535 22,500



5 3 1.000 12.566 10.681 5 1/2 5 1/8 691,200 56,500 NC 50 (4 1/2 IF) 6 5/8 3 1,416,200 57,800 59.16 1,834 30,000
HT50 88,800 53,300


5 1/2 4 0.750 11.192 11.764 6 5 5/8 615,600 62,200 5 1/2 FH 7 4 1,054,800 55,900 55.21 1,712 29,200
HT55 77,200 46.300


5 7/8 4 0.938 14.542 16.630 6 3/8 6 799,800 82,700 XT57 7 4 1,403,100 106,200 65.38 2,027 63,700


6 5/8 5 0.813 14.837 19.285 7 1/8 6 3/4 816,000 102,000 6 5/8 FH 8 5 1,448,400 73,700 73.40 2,275 38,400

tube tool Joint Weight (lb)

nominal tube
dimensions

Mechanical
Properties tube

Mechanical
Properties
tool Joint

approx.
incl. tube &
tool Joints

NOTE: 3 3/16” Spiral-Wate, previously referred to as 2 7/8”, is manufactured integral only (non-welded).

H e a V Y W e i G H t d r i L L P i P e

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