1

PERFORMANCE PROPERTIESRequirements for Leak Resistance of

API Connections (LTC/ BTC)

API Connection Reliability

January 2010

2

Agenda: January 2010Submit for WWW Ballot:WI 3064: Alternate Gauging – rejecting good materialWI 2329: Coupling wall Ballot

WI 2291: BTC Leak Resistance

BTC 5CT Coupling LengthBTC 5B Dimensions and Tolerances AcceptedBTC 5C1 Reviewed / Approved

BTC SR23 Prototype ManufactureWWW: Review/ Submit Draft Specification (MAG-Pete Moore)

WI 3064 ISSUE: Accuracy/ Repeatability Addressing multiple Error Sources

3064 Alternative Gauging of API Connections(TG-OCTG/RG-TGTC)

Describes philosophy embodied in migration from hardened gauges to thread diameter gauge system. Upon successful ballot and comment resolution, the RG-TGTC will be directed to develop detailed changes to API 5B for future letter ballot.

Issues•Gaging (accuracy/repeatability)- Pitch Diameter Measurement•Thread Form (function)- Eliminate root-crest contact•Dimensional tolerances- Revised for methodology

4

Submit for Ballot

WI 3064: Alternate Gauging USS 1955 Research

5

API Connection Performance The Problem for Leak & Mfg : 5B Gaging

System 21 (Plug and Ring) acceptance methods do not assure dimensional conformance with the material limits specified in

ASME B1.1, MIL-S-8879, MIL-S-7742, MIL-S-1222 and FED STD H28. NIST Position, March 1994.

Scope of Work1. Finite Element Analysis:2. Qualification Testing

3. Gaging: 5B Does not measure Pitch Diameter (SIZE)

Ring Gauge on an Oval Pin Ring Gauge on a Fast Pin

L4

L1

g

Significant error due to Ovality and taper (poor repeatability)

E1 measured

E1 actual

Ring &

Plu

g

Functio

nal g

age:

Thread

Dia

met

er

Gagin

g

WI2239 ISSUE: Reliability Addressing multiple Failure Mechanisms: ALL

• Gaging (accuracy/repeatability)- Pitch Diameter Measurement• Thread Form (function)- Eliminate root-crest contact• Dimensional tolerances- Revised for high pressure• Thread Compound- Qualify/ Revised Application• Coupling Yield- Heavy wall Eliminated/ min wall specified • Tension (makeup/ Tension SF)- Unload Stab Flank Contact• Makeup- Quantified for each Diameter/Grade• Coupling Coatings- Address galling/ leak resistance

Validated by test, designed through Analysis- Most Extensive FEA Reported in Industry

Consistent with research of 1930’s, 1940’s, 1950’s, Weiner in 1960’s, API 1980’s, API 1990’s! and other technical papers.

API LTC - Yielding at Working Loads

Elastic

1. Make-up

2. Make-up with Tension ( approaches plastic hinge)

3. Make-up with Tension & Internal Pressure

Above API Yield

Coupling

Pin

Above Elastic Limit

Above Elastic Limit

Above Elastic Limit

Elastic

Elastic

Above API Yield

1984 B.E. Schwind API PRAC Project 84-53

Coupling Thickness

Coupling Thickness

Coupling Thickness

(14)Minimum

Thread Crest

to OD surface

Crest to OD

at 1.5

t C measure

0.324940.353290.347440.444190.493690.495350.551600.551600.553740.551600.55160

Coupling Thickness

T&C Full Crest

Drift Pitch Threads from Out. Dia.

Diameter Diameter End of Pipe Regular nominal 0.9 Effective 99% Delta t W W W W tWmin t90

in. E7 Lc* W ThicknessThickness W W E7 nom max min 2% w tnom-2% tmax-2% t90 tmax-2%

4-1/2" - 9.50 3.965 4.454 1.254 5.000 0.2730 0.2457 4.9454 4.950 0.027 4.454 0.273 0.2980 0.2480 0.1000 0.1730 0.1980 99% 124%5" - 11.50 4.435 4.954 1.379 5.563 0.3045 0.2741 5.5021 5.507 0.030 4.954 0.305 0.3323 0.2767 0.1113 0.1932 0.2211 99% 124%5-1/2" - 14.00 4.887 5.454 1.441 6.050 0.2980 0.2682 5.9904 5.990 0.030 5.454 0.298 0.3283 0.2678 0.1210 0.1770 0.2073 100% 129%6-5/8" - 20.00 5.924 6.579 1.629 7.390 0.4055 0.3650 7.3089 7.316 0.041 6.579 0.406 0.4425 0.3686 0.1478 0.2577 0.2947 99% 124%7" - 26.00 6.151 6.954 1.816 7.656 0.3510 0.3159 7.5858 7.579 0.035 6.954 0.351 0.3893 0.3127 0.1531 0.1979 0.2362 101% 134%7-5/8" - 26.40 6.844 7.579 2.004 8.500 0.4605 0.4145 8.4079 8.415 0.046 7.579 0.461 0.5030 0.4180 0.1700 0.2905 0.3330 99% 124%8-5/8" - 40.00 7.600 8.579 2.129 9.625 0.5230 0.4707 9.5204 9.529 0.052 8.579 0.523 0.5711 0.4749 0.1925 0.3305 0.3786 99% 124%9-5/8" - 47.00 8.525 9.579 2.129 10.625 0.5230 0.4707 10.5204 10.519 0.052 9.579 0.523 0.5761 0.4699 0.2125 0.3105 0.3636 100% 129%10-3/4" - 51.00 9.694 10.704 2.129 11.750 0.5230 0.4707 11.6454 11.633 0.052 10.704 0.523 0.5818 0.4643 0.2350 0.2880 0.3468 101% 136%11-3/4" - 65.00 10.625 11.704 2.129 12.750 0.5230 0.4707 12.6454 12.623 0.052 11.704 0.523 0.5867 0.4593 0.2550 0.2680 0.3317 102% 142%13-3/8" - 68.00 12.559 13.329 2.129 14.375 0.5230 0.4707 14.2704 14.231 0.052 13.329 0.523 0.5949 0.4511 0.2875 0.2355 0.3074 104% 153%16" - 84.00 14.822 15.936 2.725 17.000 0.5320 0.4788 16.8936 16.830 0.053 15.936 0.532 0.6170 0.4470 0.3400 0.1920 0.2770 107% 173%18-5/8" - 87.50 17.567 18.563 2.725 20.000 0.7185 0.6467 19.8563 19.800 0.072 18.563 0.719 0.8185 0.6185 0.4000 0.3185 0.4185 105% 155%20" - 106.50 18.812 19.938 2.725 21.000 0.5310 0.4779 20.8938 20.790 0.053 19.938 0.531 0.6360 0.4260 0.4200 0.1110 0.2160 112% 221%

Size-Weight

Coupling Wall thickness

Designation

Connection Technology Timeline

1920 1940 1950 1960 1970 1980 1990 2000

WorldWorldWar IWar I

Standardization is initiated so

that pipe from different mills can be

used in a single well or field

(WW I delivery problems)

AP

IO

UT

TH

E D

OO

RD

EL

IVE

RA

BL

ES

WI22398-Round

Leak Research15,000 psi

FirstProduct Line Qualification(Mobil LRFD)

AB TC-IIVAM TOP

Hunting APEX

API 5C5

Exxon TPC

DEA 5

1930

8-RoundLeak

Research1000 psi(1941)

USS research on Leak

resistance

Exxon Torque-

Turn

PRIZE:OCTG Spend $150MM / yr

$800MM Losses 78-84

WorldWorldWar IIWar II

Pro

pri

eta

ry

API No 5- 1924 steel & iron pipe

Specification8 & 10 VThreads

Chemistry & Tensile Properties

API 8-RoundTension

Research

API BTC

Tension Research

DEA 27

ExxonMobil ShellRQT

APILeak

ResearchPRAC 53:

83-86

IS0 13679SR22

API RoundThread

DrillPipe

TubingCasing

API BTC

APIExtreme

Line

1933 Hydril Premium

ConnectionsFred Stone

HydrilCS ‘46

PH6 ‘48

Atlas Bradford Premium

ConnectionsHardy Griffin

Taylor

VAM Premium

Connections

InterlockPremium

Connections

VAM TOPTCII

APEX

AB TC-4S

Quadraseal

HydrilTripleSeal

(Type B’40)

Hydril2-StepFlush

Joint ‘33

VAM ACEHydril

WedgeThread

13

API Leak Research: USS 1955-1956

14

API Connection Performance The Problem for Leak & Mfg : 5B Gaging

No Interference: 7” Fast pin-coupling, small pin/large box-LEAK!

10-¾ @ 0.3% ovality diameter variance is roughly 0.032 inch,

Overshadows the 0.006 inch (approx) BTC tolerance

Scope of Work1. Finite Element Analysis:2. Qualification Testing

3. Gaging: 5B Does not measure Pitch Diameter (SIZE)

Ring Gauge on an Oval Pin Ring Gauge on a Fast Pin

L4

L1

g

Significant error due to Ovality and taper (poor repeatability)

E1 measured

E1 actual

API A m

ajor

pin d

iam

eter

conta

ct:

Altern

ate

Gagin

g

15

Table 5L.1: 5", 18# L80 LTC Reliability Qualification Testing SummarySpecimen No.(Coupling)

Pin Taper(in/in)

Coupling Taper(in/in)

Cyclic Pressure(no leak)

Leak Pressure

1-4 0.061 0.065 10, 140 psi 14,450 psi1-2 0.0645 0.065 10,140 psi 14,450 psi -no leak1-3 0.066 0.0605 10,140 psi 14,450 psi

API WI2239LTC Reliability Qualification Testing Summary

Table 9.1: 9-5/8”, 53.5# P110 LTC Test SummarySpecimen No.(Coupling)

Pin Taper(in/in)

Coupling Taper(in/in)

Cyclic Pressure(no leak)

Leak Pressure

5 0.061 0.065 11,210 psi 15,198 psi8 0.063 0.065 11,210 psi 13,351 psi9 0.063 0.0635 11,210 psi 13,430 psi

Table 5P-1: API WI2239- 5"18# P110 LTC TestingSpecimen No.(Coupling)

Pin Taper(in/in)

Coupling Taper(in/in)

Cyclic Pressure(no leak)

Leak Pressure

4 0.063-0.064 0.063-0.064 13,940 psi none5 0.063-0.064 0.063-0.064 13,940 psi none6 0.063-0.064 0.063-0.064 13,940 psi none

WI2239 ISSUE: Leak ResistanceAddress Multiple Root Causes of Failure- Analysis• Gaging- Pitch Diameter Measurement• Thread Form- Eliminate root-crest contact• Dimensional tolerances- Revised for high pressure• Thread Compound- Revised Application• Coupling Yield- Heavy wall Eliminated • Tension- Unload Stab Flank Contact• Makeup- Quantified for each Diameter/Grade• Coupling Coatings- Address galling/ leak resistance

Validated by test, designed through Analysis-

Most Extensive FEA Reported in Industry

Consistent with Weiner leak criteria of 1960’s, API work in the 1980’s, and other published technical papers.

WI 2291 BTC Leak Resistance: MakeupOptions are allowed for SRXX connection makeup (refer to 4.4.1 a.1) Rejects occur when the

coupling does not make the position criteria with minimum power-turns. Control of the coupling make-up shall be by one of the following methods.

i) By Power Turn via Torque-turn equipment, or by counting power turns. Power-turns start at a torque value equal to 5% to 10% of the target given in Table B1. The number of power turns shall equal or exceed the minimum number of power turns specified in Table B1. The acceptance position when counting turns shall be two turns below the base of the triangle to the apex of the triangle. If torque is observed to oscillate (often a result of eccentricities) adjustment of the definition of start of power torque upward may be required. Ensure proper alignment in makeup equipment and identify source of torque oscillation.

ii) Makeup to within the triangle position and verify power turn requirement. Repeat power-turn verification at regular intervals.

iii) Torque guided make-up, per 4.4, with the revision of determining torque via the number of power-tight turns per Table B1. Makeup torque should relate to an upper value of actual field make-up torque values. Repeat power-turn verification at regular intervals. Makeup shall be within the triangle position mark.

18

WI 2291 BTC MAKEUP: P110Mimumum Coupling SRBTC Reference Reference

Power Out. Dia. A11 Final Start

Turns W Triangle Torque TorqueSize-Weight

Designation

9-5/8" - 36.00 2.7 10.625 4.913 8,550 9009-5/8" - 40.00 2.7 10.625 4.913 9,460 9009-5/8" - 43.50 2.7 10.625 4.913 8,553 1,0009-5/8" - 47.00 2.7 10.625 4.913 9,459 1,0009-5/8" - 53.50 3.077 10.625 4.913 10,226 1,000

10-3/4" -32.75 2.8 11.750 5.113 7,100 80010-3/4" -40.50 2.8 11.750 5.113 8,910 90010-3/4" - 45.50 2.8 11.750 5.113 10,010 1,00010-3/4" - 45.50 2.8 11.750 5.113 10,010 1,00010-3/4" - 51.00 2.8 11.750 5.113 10,990 1,00010-3/4" - 55.50 3.077 11.750 5.113 1,000

11-3/4" - 42.00 3.3 12.750 5.113 9,980 1,00011-3/4" - 47.00 3.3 12.750 5.113 11,120 1,00011-3/4" - 54.00 3.3 12.750 5.113 12,560 1,00011-3/4" - 60.00 3.3 12.750 5.113 13,710 1,00011-3/4" - 65.00 3.590 12.750 5.113

13-3/8" - 48.00 4.5 14.375 5.213 14,320 1,40013-3/8" - 54.50 4.5 14.375 5.213 16,240 1,40013-3/8" - 61.00 4.5 14.375 5.213 17,950 1,40013-3/8" - 68.00 4.5 14.375 5.213 19,480 1,40013-3/8" - 72.00 4.734 14.375 5.213 20,170 1,400

0.400

0.400

0.400

0.400

0.400

0.200

0.200

0.200

0.200

0.200

0.200

0.200

0.200

0.200

0.200

0.200

0.100

0.100

0.100

0.100

0.100

J’

19

WI 2291 BTC MAKEUP:

P110

Yield

Ultimate

End of Pipe

to Triangle Out. Dia. MIN MAX

Stamp Regular A11 Handtight

A1 W Triangle Torque

4-1/2" - 10.50 3.875 5.000 3.875 2700 4700 300

4-1/2" - 11.60 3.875 5.000 3.875 2900 5100 300

4-1/2" - 13.50 3.875 5.000 3.875 3300 5700 3004-1/2" - 15.10 3.875 5.000 3.875 3618 7236 400

5" - 11.50 4.063 5.563 4.063 3600 6200 400

5" - 13.00 4.063 5.563 4.063 4100 7000 400

5" - 15.00 4.063 5.563 4.063 4600 8000 5005" - 18.00 4.063 5.563 4.063 5292 9200 500

5-1/2" - 14.00 4.125 6.050 4.125 3900 6800 400

5-1/2" - 15.50 4.125 6.050 4.125 4400 7600 400

5-1/2" - 17.00 4.125 6.050 4.125 4700 8200 5005-1/2" - 20.00 4.125 6.050 4.125 3986 7972 400

5-1/2" - 23.00 4.125 6.050 4.125 5789 11578 600

6-5/8" - 20.00 4.313 7.390 4.3125 6500 11200 700

6-5/8" - 24.00 4.313 7.390 4.313 7600 13200 800

6-5/8" - 28.00 4.313 7.390 4.313 8600 15000 9006-5/8" - 32.00 4.313 7.390 4.313 9385 18771 900

7" - 23.00 4.500 7.875 4.500 7600 13100 800

7" - 26.00 4.500 7.875 4.500 8500 14700 900

7" - 29.00 4.500 7.875 4.500 9300 16100 900

7" - 32.00 4.500 7.875 4.500 10000 17400 1,0007" - 35.00 4.500 7.875 4.500 10664 21327 1,100

7-5/8" - 24.00 4.688 8.500 4.6875 7400 12800 700

7-5/8" - 26.40 4.688 8.500 4.688 8000 13900 800

7-5/8" - 29.70 4.688 8.500 4.688 9000 15600 900

7-5/8" - 33.70 4.688 8.500 4.688 10000 17400 1,0007-5/8" - 39.00 4.688 8.500 4.688 11154 22307 1,100

8-5/8" - 24.00 4.813 9.625 4.813 6800 11700 700

8-5/8" - 28.00 4.813 9.625 4.913 7900 13600 800

8-5/8" - 32.00 4.813 9.625 4.913 9100 15700 900

8-5/8" - 32.00 4.813 9.625 4.913 9100 15700 900

8-5/8" - 36.00 4.813 9.625 4.913 10100 17500 1,000

8-5/8" - 40.00 4.813 9.625 4.913 11100 19300 1,1008-5/8" - 44.00 4.813 9.625 4.913 11997 23995 1,200

9-5/8" - 36.00 4.813 10.625 4.913 8300 14300 800

9-5/8" - 40.00 4.813 10.625 4.913 9200 15900 900

9-5/8" - 43.50 4.813 10.625 4.913 9900 17100 1,000

9-5/8" - 47.00 4.813 10.625 4.913 10500 18200 1,100

9-5/8" - 53.50 4.813 10.625 4.913 11600 20200 1,200

10-3/4" -32.75 4.813 11.750 5.113 6500 11300 700

10-3/4" -40.50 4.813 11.750 5.113 8200 14200 800

10-3/4" - 45.50 4.813 11.750 5.113 9200 16000 900

10-3/4" - 45.50 4.813 11.750 5.113 9200 16000 900

10-3/4" - 51.00 4.813 11.750 5.113 10100 17600 1,000

10-3/4" - 55.50 4.813 11.750 5.113 10900 18800 1,100

10-3/4" - 60.70 4.813 11.750 5.113 11600 20100 1,200

10-3/4" - 65.70 4.813 11.750 5.113 12286 21300 1,200

11-3/4" - 42.00 4.813 12.750 5.113 7800 13600 800

11-3/4" - 47.00 4.813 12.750 5.113 8700 15100 900

11-3/4" - 54.00 4.813 12.750 5.113 9900 17100 1,000

11-3/4" - 60.00 4.813 12.750 5.113 10800 18600 1,10011-3/4" - 65.00 4.813 12.750 5.113 11400 19800 1,10011-7/8-71.8 4.813 12.875 5.113 12135 21035 1,200

11-3/4" - 71.00 4.813 12.750 5.113 12097 20969 1,200

13-3/8" - 48.00 4.813 14.375 5.213 7800 13500 800

13-3/8" - 54.50 4.813 14.375 5.213 8800 15300 900

13-3/8" - 61.00 4.813 14.375 5.213 9800 16900 1,000

13-3/8" - 68.00 4.813 14.375 5.213 10600 18400 1,100

13-3/8" - 72.00 4.813 14.375 5.213 11000 19000 1,100

16" - 65.00 4.813 17.000 5.313 8548 14816 900

16" - 75.00 4.813 17.000 5.313 10173 17633 1,000

16" - 84.00 4.813 17.000 5.313 11465 19873 1,100

16" - 109.00 4.813 17.000 5.313 14424 25002 1,400

18-5/8" - 87.50 4.813 20.000 5.313 10832 18776 1,100

20" - 94.00 4.813 21.000 5.313 10135 17567 1,000

20" - 106.50 4.813 21.000 5.313 11522 19972 1,200

20" - 133.00 4.8125 21.0000 5.313 14017 24297 1,400

80,000

100,000

Size-Weight

Designation

Torque

NOMINAL

Cent. of Cplg.End of Pipe

Power Tight to Triangle Out. Dia. MIN MAX

Make-Up Stamp Regular pin axial thread A11 Handtight OD HOOP OD HOOP OD HOOP

J A1 W strain Axial Disp Triangle Torque Coupling E7 Coupling d1 Cpl E7-1

4-1/2" - 10.50 0.500 3.875 5.000 0.000667 0.0024 3.875 2700 4700 300 54000 47000 47000

4-1/2" - 11.60 0.500 3.875 5.000 0.000658 0.0024 3.875 2900 5100 300 60000 52000 52000

4-1/2" - 13.50 0.500 3.875 5.000 0.000639 0.0023 3.875 3300 5700 300 69000 60000 610004-1/2" - 15.10 0.500 3.875 5.000 0.000614325 0.0022 3.875 3618 7236 400 81000 70000 71000

5" - 11.50 0.500 4.063 5.563 0.00078 0.0029 4.063 3600 6200 400 47000 41000 42000

5" - 13.00 0.500 4.063 5.563 0.000776 0.0029 4.063 4100 7000 400 54000 47000 48000

5" - 15.00 0.500 4.063 5.563 0.000759 0.0029 4.063 4600 8000 500 64000 55000 560005" - 18.00 0.500 4.063 5.563 0.000724341 0.0027 4.063 5292 9200 500 78000 67000 69000

5-1/2" - 14.00 0.500 4.125 6.050 0.000694 0.0027 4.125 3900 6800 400 54000 46000 48000

5-1/2" - 15.50 0.500 4.125 6.050 0.000685 0.0026 4.125 4400 7600 400 61000 52000 54000

5-1/2" - 17.00 0.500 4.125 6.050 0.000674 0.0026 4.125 4700 8200 500 67000 57000 600005-1/2" - 20.00 0.500 4.125 6.050 0.000484862 0.0019 4.125 3986 7972 400 80000 68000 710005-1/2" - 23.00 0.500 4.125 6.050 0.000619057 0.0024 4.125 5789 11578 600 92000 78000 82000

6-5/8" - 20.00 0.500 4.313 7.390 0.000759 0.0030 4.3125 6500 11200 700 47000 41000 43000

6-5/8" - 24.00 0.500 4.313 7.390 0.000741 0.0030 4.313 7600 13200 800 57000 50000 52000

6-5/8" - 28.00 0.500 4.313 7.390 0.000715 0.0029 4.313 8600 15000 900 67000 59000 620006-5/8" - 32.00 0.500 4.313 7.390 0.000689196 0.0028 4.313 9385 18771 900 77000 67000 70000

7" - 23.00 0.500 4.500 7.875 0.00073 0.0031 4.500 7600 13100 800 45000 39000 41000

7" - 26.00 0.500 4.500 7.875 0.000721 0.0030 4.500 8500 14700 900 51000 45000 47000

7" - 29.00 0.500 4.500 7.875 0.000707 0.0030 4.500 9300 16100 900 58000 51000 53000

7" - 32.00 0.500 4.500 7.875 0.000691 0.0029 4.500 10000 17400 1,000 64000 56000 590007" - 35.00 0.500 4.500 7.875 0.000674 0.0028 4.500 10664 21327 1,100 71000 62000 65000

7-5/8" - 24.00 0.500 4.688 8.500 0.000659 0.0029 4.6875 7400 12800 700 43000 37000 40000

7-5/8" - 26.40 0.500 4.688 8.500 0.000658 0.0029 4.688 8000 13900 800 47000 40000 43000

7-5/8" - 29.70 0.500 4.688 8.500 0.00065 0.0029 4.688 9000 15600 900 53000 46000 49000

7-5/8" - 33.70 0.500 4.688 8.500 0.000635 0.0028 4.688 10000 17400 1,000 61000 53000 570007-5/8" - 39.00 0.500 4.688 8.500 0.000613 0.0027 4.688 11154 22307 1,100 71000 62000 66000

8-5/8" - 24.00 0.500 4.813 9.625 0.000581 0.0026 4.813 6800 11700 700 33000 29000 31000

8-5/8" - 28.00 0.400 4.813 9.625 0.000591 0.0027 4.913 7900 13600 800 38000 33000 36000

8-5/8" - 32.00 0.400 4.813 9.625 0.000591 0.0027 4.913 9100 15700 900 44000 38000 41000

8-5/8" - 32.00 0.400 4.813 9.625 0.000591 0.0027 4.913 9100 15700 900 44000 38000 41000

8-5/8" - 36.00 0.400 4.813 9.625 0.000584 0.0026 4.913 10100 17500 1,000 50000 44000 47000

8-5/8" - 40.00 0.400 4.813 9.625 0.000574 0.0026 4.913 11100 19300 1,100 56000 49000 530008-5/8" - 44.00 0.400 4.813 9.625 0.000561 0.0025 4.913 11997 23995 1,200 63000 55000 59000

9-5/8" - 36.00 0.400 4.813 10.625 0.000525 0.0024 4.913 8300 14300 800 44000 39000 42000

9-5/8" - 40.00 0.400 4.813 10.625 0.00052 0.0023 4.913 9200 15900 900 50000 44000 47000

9-5/8" - 43.50 0.400 4.813 10.625 0.000513 0.0023 4.913 9900 17100 1,000 55000 48000 51000

9-5/8" - 47.00 0.400 4.813 10.625 0.00050 0.0023 4.913 10500 18200 1,100 60000 52000 56000

9-5/8" - 53.50 0.400 4.813 10.625 0.00049 0.0022 4.913 11600 20200 1,200 69000 60000 64000

10-3/4" -32.75 0.200 4.813 11.750 0.00046 0.0021 5.113 6500 11300 700 35000 31000 33000

10-3/4" -40.50 0.200 4.813 11.750 0.00047 0.0021 5.113 8200 14200 800 44000 39000 42000

10-3/4" - 45.50 0.200 4.813 11.750 0.00046 0.0021 5.113 9200 16000 900 51000 44000 48000

10-3/4" - 45.50 0.200 4.813 11.750 0.00046 0.0021 5.113 9200 16000 900 51000 44000 48000

10-3/4" - 51.00 0.200 4.813 11.750 0.00045 0.0020 5.113 10100 17600 1,000 57000 50000 53000

10-3/4" - 55.50 0.200 4.813 11.750 0.00044 0.0020 5.113 10900 18800 1,100 63000 55000 59000

10-3/4" - 60.70 0.200 4.813 11.750 0.00043 0.0019 5.113 11600 20100 1,200 69000 61000 65000

10-3/4" - 65.70 0.200 4.813 11.750 0.00042 0.0019 5.113 12286 21300 1,200 76000 66000 71000

11-3/4" - 42.00 0.200 4.813 12.750 0.00043 0.0019 5.113 7800 13600 800 42000 37000 40000

11-3/4" - 47.00 0.200 4.813 12.750 0.00042 0.0019 5.113 8700 15100 900 48000 42000 45000

11-3/4" - 54.00 0.200 4.813 12.750 0.00041 0.0019 5.113 9900 17100 1,000 56000 49000 52000

11-3/4" - 60.00 0.200 4.813 12.750 0.00040 0.0018 5.113 10800 18600 1,100 62000 55000 5800011-3/4" - 65.00 0.200 4.813 12.750 0.00039 0.0018 5.113 11400 19800 1,100 68000 60000 6400011-7/8-71.8 0.200 4.813 12.875 0.00038 0.0017 5.113 12135 21035 1,200 76000 67000 7100011-3/4" - 71.00 0.200 4.813 12.750 0.00038 0.0017 5.113 12097 20969 1,200 74000 65000 70000

13-3/8" - 48.00 0.100 4.813 14.375 0.00028 0.0013 5.213 7800 13500 800 57000 51000 54000

13-3/8" - 54.50 0.100 4.813 14.375 0.00029 0.0013 5.213 8800 15300 900 64000 56000 60000

13-3/8" - 61.00 0.100 4.813 14.375 0.00029 0.0013 5.213 9800 16900 1,000 70000 62000 66000

13-3/8" - 68.00 0.100 4.813 14.375 0.00029 0.0013 5.213 10600 18400 1,100 76000 67000 71000

13-3/8" - 72.00 0.100 4.813 14.375 0.00028 0.0013 5.213 11000 19000 1,100 81000 67000 75000

Size-Weight

Designation

Torque

NOMINAL

5C1-SR23

A11 A11

8.625-9.625 inch: A11 = 4.912513.375 inch: A11 = 5.212516-20 inch: A11 = 5.3125

WI 2291: BTC Leak Resistance

16-20 inch: J = 0.00

10-3/4-13.375: J = 0.20 - 0.50

22

WI 2291: BTC Leak Resistance Standard Thread Form

23

API BTC ISSUE: USS Trials

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API BTC ISSUE: USS Trials

25

WI 2291: BTC Leak Resistance Standard Thread Form

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WI 2291: BTC Leak Resistance Standard Thread Form