New water-save drilling technology,which takes such three equipments as pulsator,submerged pump and exhaust valve in original drilling equipments,is a kind of new technological ideas to carry out normal drilling.

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.

Progresses of application research on drilling technology to loose rock formation and principal achievements;

It is emphasized that the role of high efficiency geology core drilling technology in the plan is not replaceable.

In this paper the development history of drilling technology and drilling rigs is summarized firstly,and then some problems existing currently in the railway drilling are analyzed.

New technology of water-saving drilling and its modified applications;

Properties Research on the Hydraulic Tools of the New Type of Water-saving Drilling Technology;

Key points and application of a new water-saving drilling technology

Construction of water engineering and water-saving technology system of Ningxia;

Establishment of water-saving society in Haihe River Basin and utilization of foreign water-saving technology;

Adaptability of water-saving technology for agricultural irrigation in Hebei Province