Countermeasures of improving drilling technology economic indicator for deep wells in western Sichuan;

Application and development of horizontal well drilling technology in Jianghan Oilfield;

Several drilling techniques for decreasing investment and increasing development benefit of geothermal resources were approached after analyses on current situation of geothermal resources development in Daqing Oilfield.

Application of horizontal well drilling technique in thin reservoir;

Advance of automatic intelligent drilling techniques

,to improve and optimize bit structure,to strengthen drilling parameter,to improve and upgrade increasingly the preferred plan of bit and drilling parameter,to prevent positively tool failure in this region,to adopt measures to strengthen drilling parameters and composite drilling technique,and to introduce in .

It discussed karst growth rule in Zhengzhou,destroy depth disturb mining,slip-casting and the problem of drilling technique.

The wirelinecore drilling technique can be utilized to achieve such technical and economical effect as top quality,high efficien-cy and low consurnption when geological exploration holes go more and more deep,coring becomes more andmore difficult and the drilling site is more and more remote.

The present situation of international drilling market and the development of solid mineral drilling techniques are sized up.