polarizer
Daqing drilling and logging company
Great Wall Drilling Logging Company (CNLC)-the largest logging company in China at present, with its team, equipment and annual output value.
Bohai drilling logging company
Qing Chuan drilling and logging company
Western drilling & logging company
All of the above are PetroChina.
Shengli logging company
Zhongyuan oilfield logging company
Jianghan logging company
The above is Sinopec's
China Ocean Logging Company
The above is CNOOC's
There are also many private logging companies, such as Willogan Logging Company in Xi 'an.
In addition, China also has cable logging operations.
Schlumberger Corp.
Weidefu company
Also engaged in drilling in China.
Schlumberger Corp.
Baker Hughes Corp.
Four logging companies in the world
Schlumberger Corp.
Halliburton
Baker Hughes Corp.
Widford