Designed to disconnect drill string from the abandonment equipment when the cement plug being installed.
|
No. |
Parameter |
Value |
|
1 |
Body diameter D, in (mm) |
4 (102) |
|
2 |
Top sub diameter D1, in (mm) |
4.252 (108) |
|
3 |
Bore diameter d, in (mm) |
2.441 (62) |
|
4 |
Length, ft (mm) |
2.458 (749) |
|
5 |
Connecting thread |
NUE Api tubing 3-1/2 (89 GOST 633-80) |
|
6 |
Weight, lb (kg) |
63.945 (29) |
|
7 |
Check screw shear pressure, psi (MPa) |
1 885±145 (13±1) |
|
8 |
Fallback method of string disconnection—mechanical |
Special left-hand trapezoidal thread 94х8(Р4)LH |
|
9 |
Maximum operating temperature, °F (°С) |
212(100) |