CN112196478A
|
|
Combined type safety joint
|
CN111927379A
|
|
Bypass packer
|
CN111927408A
|
|
Packing string and sand control completion method
|
CN112096338A
|
|
Annular packing valve and well completion pipe string
|
CN111852386A
|
|
Packer capable of bearing large torque, high temperature and high pressure
|
CN111980627A
|
|
Oil extraction water control valve
|
CN111535780A
|
|
Setting tool for preventing setting in advance and open hole suspension process for protecting packer
|
CN111075404A
|
|
Two-stage sieve tube and tubular column
|
CN110671061A
|
|
Safety joint and tubular column
|
CN110656907A
|
|
Fishing spear and fishing device
|
CN110644947A
|
|
Valve and tubular column
|
CN110644943A
|
|
Packer and pipe column
|
CN110685648A
|
|
Filling tool and well completion string
|
CN110685626A
|
|
Packer setting tool and packer setting service pipe column
|
CN110630227A
|
|
Running tool, layered oil production pipe column and layered oil production pipe column running method
|
CN110630566A
|
|
Submersible pump canning system
|
CN110552667A
|
|
Layered filling pipe column, layered water control pipe column and layered filling layered water control process
|
CN110454121A
|
|
Screen casing and completion tubular column
|
CN110847863A
|
|
Multi-runner bypass sieve tube
|
CN109372463A
|
|
Static pressure type bypasses packer
|