| Sign In | Join Free | My ecer.jp |
|
| Sign In | Join Free | My ecer.jp |
|
| Categories | Oilfield Couplings |
|---|---|
| Brand Name: | SWS |
| Place of Origin: | CHINA |
| MOQ: | MOQ as per type requirements |
| Price: | Details pls contact our staff |
| Packaging Details: | Export standards packaging and others requirements should be clarified in advance |
| Delivery Time: | Delivery ex-mill details need to discuss |
| Payment Terms: | T/T or LC irrevocable In sight |
| Supply Ability: | As requirement |
| 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 |
| Company Info. |
| Jiangsu Service Petroleum Technology Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
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.
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
| 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 |
|
API 5CT Oilfield Long Round Thread LTC Casing Coupling
High-Competition NPT Thread Carbon Steel Oilfield Coupling for Oilfield
20 Inch OD OCTG Couplings Oilfield Tools Premium Connection API 5CT Coupling
Super 13Cr P110 Oilfield Couplings OD 55.88mm Tubing Coupling
Size 1.9 OD 48.26 API 5CT Coupling No Thickening NUE J55 Coupling
NUE API 5CT Oilfield Couplings OD 55.88mm API Tubing Couplings
OD 73.02 API Line Pipe Couplings J55 Coupling No Thickening NUE
K55 OD 88.9 Oilfield Couplings API 5CT Oil Tubing Coupling Size 3-1/2
OD 101.6 Oilfield Couplings API 5CT Size 4 TUBING K55 Process Threads
High Pressure Oilfield Couplings for Oil And Gas Industry Seamless Type
