|
CN111924737A
|
|
Automatic gear shifting winch
|
|
CN112065265A
|
|
Control structure of top drive device
|
|
CN111946251A
|
|
Shale gas drilling machine manufacturing method based on cluster well
|
|
CN110700754A
|
|
Top drive guide rail and mounting method thereof
|
|
CN110608002A
|
|
Washing pipe assembly
|
|
CN110562870A
|
|
Automatic rope arranging device of intelligent winch
|
|
CN110560295A
|
|
Plate product spraying equipment
|
|
CN110529049A
|
|
A kind of workover rig concubine holder device
|
|
CN109025853A
|
|
One kind pulling workover rig derrick adjustment device and pulls workover rig
|
|
CN109025838A
|
|
Multidirectional-moving device for oil-well rig module
|
|
CN108979582A
|
|
One kind is with brill blowout hookup
|
|
CN107269237A
|
|
A kind of spinner roller synchronization action or the spinner clamp device of movement
|
|
CN107327551A
|
|
A kind of clutch and transfer device based on parallelogram principle
|
|
CN104773408A
|
|
Movable folding type drilling fluid storage device
|
|
CN103670276A
|
|
Monolithic horizontal movement system of wagon drill
|
