CN109989742A
|
|
A kind of eight sector sound wave perforation localization method of set back side
|
CN109899055A
|
|
A kind of sector acoustic logging instrument caliberating device and scaling method
|
CN109356541A
|
|
Electronic dispensing pipe nipple and put-on method
|
CN109441433A
|
|
The concentric sealing test pipe nipple in underground
|
CN108279047A
|
|
A kind of thermal flow rate sensor
|
CN107515245A
|
|
Oil gas storage well sleeve leakage field test device and method of testing
|
CN107035362A
|
|
A kind of injection well zonal pressure method of testing and device
|
CN105937392A
|
|
Device and method for finding abnormal temperature points in production well
|
CN105628118A
|
|
Thermodynamics-based flow meter and thermodynamics-based flow measuring method
|
CN105569652A
|
|
Small layer pressure test analysis method
|
CN105386743A
|
|
Swabbing device for well logging of rod pumped well and well logging method based on device
|