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BTC 127mm Oilfield Couplings SMLS Casing Couplings API 5CT Standard

BTC 127mm Oilfield Couplings SMLS Casing Couplings API 5CT Standard

SMLS Casing Couplings

EUE NUE Oilfield Couplings

127mm Oilfield Couplings

Place of Origin:

CHINA

Brand Name:

SWS

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Product Details
Standards:
API 5CT
Grades:
J/K55, N80-1/Q, L80-1, 80SS, L80-3Cr, L80 13Cr, L80-9CR, Super 13Cr, P110, P110-13CR, TP110S
Size Range:
OD-127mm-356.12mm (4-1/2''-13-3/8'')
Thread Buckle Type:
BTC/STC/LTC
Manufacturing Type:
Seamless
Inspection:
NDT And Etc As Per Api 5ct And 5b
Product Description

CASING COUPLINGS; SMLS; EUE &NUE COUPLINGS; OILFIELDUSE ;COUPLING STOCK MATERIAL; API 5CT STANDARD

 

Product Name: CASING COUPLINGS; SMLS; EUE &NUE COUPLINGS; OILFIELD TOOLS USE ;COUPLING STOCK MATERIAL

 

Standards: API SPEC 5CT, API SEPC 5B, API-7

 

Material/Steel Grade: J/K55, N80, L80-1, 80SS, L80-3Cr, L80 13Cr, L80-9CR, Super 13Cr, P110, P110-13CR, TP110S, etc.

 

Specifications: OD-127mm-356.12mm (4-1/2''-13-3/8'')

 

Thread buckle type: BTC/STC/LTC

 

 

Casing coupling is the connecting part of casing to transmit environmental load, and is also the weak link that is prone to failure accidents.

 

It is well-known, the integrity of wellbore in the life cycle is not only limited by the thread connection strength of casing, but also by the sealing performance of coupling threads (Han and Wang, 1999). Therefore, it is of great significance to study the sealing integrity of casing coupling under non-uniform load.

 

 

CASING COUPLING : A short length of pipe used to connect two joints of casing. A casing coupling has internal threads (female threadform) machined to match the external threads (male threadform) of the long joints of casing. The two joints of casing are threaded into opposite ends of the casing coupling.

 

BTC 127mm Oilfield Couplings SMLS Casing Couplings API 5CT Standard 0

STC/LTC COUPLING SIZE LIST 

size (in) pipe OD mm coupling OD W mm Min length NL mm bore diameter Q mm bore depth q mm bearing surface width b mm hand-tight standoff A Distance from pipe end to coupling center after tightening J mm thread numer for each inch weight KG short coupling weight KG long coupling
4-1/2'' 114.3 127 158.75(short)/177.8(long) 116.68 12.7 3.97 3 12.7 8 3.62 4.15
5'' 127 141.3 165.1(short)/196.85(long) 129.38 12.7 4.76 3 12.7 8 4.66 5.75
5-1/2'' 139.7 153.67 171.45(short)/203.2(long) 142.08 12.7 3.18 3 12.7 8 5.23 6.42
7'' 177.8 194.46 184.15(short)/228.6(long) 180.18 12.7 4.76 3 12.7 8 8.39 10.83
9-5/8'' 244.48 269.88 196.85(short)/266.7(long) 248.44 11.0 6.35 3 1/2 12.7 8 18.03 25.45
10-3/4'' 273.05 298.45 203.2 277.02 11.0 6.35 3 1/2 12.7 8 20.78 -
13-3/8'' 339.72 365.12 203.2 343.69 11.0 5.56 3 1/2 12.7 8 25.66 -
16'' 406.4 431.8 228.6 411.96 9.3 5.56 3 1/2 12.7 8 34.91 -
18-5/8'' 473.08 508 228.6 478.63 9.3 5.56 3 1/2 12.7 8 54.01 -
20'' 508 533.4 228.6(short)/292.1(long) 513.56 9.3 5.56 4 12.7 8 43.42 57.04

BTC COUPLING SIZE LIST 

BTC 127mm Oilfield Couplings SMLS Casing Couplings API 5CT Standard 1

size (in) pipe OD mm coupling OD W mm Min length NL mm bore diameter Q mm bearing surface width b mm hand-tight standoff A Distance from pipe end to coupling center after tightening J mm thread numer for each inch weight KG
4-1/2'' 114.3 127 225.42 117.86 3.18 1/2. 12.7 5 4.55
5'' 127 141.3 231.78 130.56 3.97 1 12.7 5 5.85
5-1/2'' 139.7 153.67 234.95 143.26 3.97 1 12.7 5 6.35
7'' 177.8 194.46 254 181.36 5.56 1 12.7 5 10.54
9-5/8'' 244.48 269.88 269.88 248.03 9.52 1 12.7 5 23.16
10-3/4'' 273.05 298.45 269.88 276.61 9.52 1 12.7 5 25.74
13-3/8'' 339.72 365.12 269.88 343.28 9.52 1 12.7 5 31.77
16'' 406.4 431.8 269.88 410.31 9.52 7/8. 12.7 5 40.28
18-5/8'' 473.08 508 269.88 476.99 9.52 7/8. 12.7 5 62.68
20'' 508 533.4 269.88 511.91 9.52 7/8. 12.7 5 50.1

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