|
CN103094985A
|
|
Intelligent grid system
|
|
CN103089226A
|
|
Fracturing unit for oil field exploitation
|
|
CN103095209A
|
|
Medium-voltage frequency conversion system used for shale gas extraction
|
|
CN102953677A
|
|
Drilling machine using motors as main power
|
|
CN102983809A
|
|
Alternating current variable frequency motor control system based on hand wheel and foot switch and control method thereof
|
|
CN102953676A
|
|
Drill power system
|
|
CN102943619A
|
|
Grid electricity drilling machine applicable to deep drilling
|
|
CN102953720A
|
|
Electronic control room of oil-to-electricity driving system for petroleum drilling equipment
|
|
CN102808608A
|
|
Drilling-logging integrated comprehensive instrument system
|
|
CN102817607A
|
|
Underground communication system of continuous pipe drill
|
|
CN102797457A
|
|
Device and method for precisely calculating well depth based on polarized light
|
|
CN102797456A
|
|
High temperature and high pressure resistant packaging method for underground communication device of coiled tubing drilling machine
|
|
CN102780822A
|
|
3G (3rd Generation Telecommunication) network-based drilling parameter mobile phone monitoring system and method
|
