Downhole tools
Name:TST valve | |
Spec: | |
Introduce: |
The tubing string testing (TST) valve is a full-opening valve used to pressure-test the workstring while running in the hole. The valve is operated after it is stung into a permanent packer or after a retrievable packer is set. The TST valve requires a differential pressure between the annulus and the tubing to shear. The TST valve can also be used for pipe flexing if it is run below an annulus pressure-responsive circulating valve. |
Downhole tools
- CHAMP V Packer
- RTTS Packer
- RTTS--safety-Joint
- FUL-FLO? Hydraulic Circulating
- IPO circulating valve
- OMNI? Circulating Valve
- RTTS circulating valve
- RD Safety circulating valve
- LPR-N Tester Valve
- Select Tester? Valve
- TST valve
- 破裂盤(RD)油管柱測(cè)試閥
- Round-Mandrel-Slip-Joint
- BIG JOHN? Hydraulic Jar
- Drain Valve
- Shock absorbe
- 減震器
- Super safety valve