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Spin blunt drilling technology

Date:Jul 20,2011

Spin in the general principle is blunt drilling into the rotation, on the basis of the upper drill in the installation of a hydraulic impact, will the drilling fluid pressure can change for high frequency impact energy, bit under pressure in a drill with drilling column rotation at the same time, the impact of high frequency impact role in rotation and impact under the joint action of rock, improve the broken rock breaking efficiency.

 

Spin blunt drilling technology is a new drilling technology, its new ideas, the good performance of the deep well drilling technology will help to improve to a new height, oil drilling technology development spin blunt broad prospect.

 

At present, the domestic and foreign oil and gas drilling field to spin blunt drilling technology expressed concern. The world spin blunt drilling technology development, the development DuoZhong soon the spiral structure at drilling technology tools-the impact, in oil and gas drilling field hard rock mechanical penetration rate increase in significant effect. Received The technology can greatly improve the drilling efficiency, reduce the drilling cost and in deep well drilling, hard strata will play an important role. Its application and dissemination from site conditions, in combination of drilling only existing hydraulic impact, the increased convenient and reliable.

 

At present, the blunt drilling techniques are not applied to deep well, super deep well drilling and the high density. The rapid development of oil and gas development in our country, the exploration continues to expand, drilling depth increases, formation s old, more and more drilling hard strata in more and more. Deep well, super deep well the main problems facing the penetration rate is the machinery and slow deep sea drilling hard rock drill into the low efficiency of difficult problems.

 

In order to play spin blunt drilling technology to speed up the deep complex formation drilling speed advantage, reduce the drilling cost and improve the quality of the body well, it is necessary to spin rushed into drilling technology research, development and spin rushed to match, the drill bit drilling development impact underground monitoring system, establish the spin blunt drilling simulation test device, form the mature spin blunt drilling technology.

 

Take energy storage institutions and preloaded institutions is the new type of jet impact mechanical energy storage device temperatures, can reduce the impact the return, even, improve the flow of hydraulic impact of the energy utilization ratio, so as to obtain higher single impact energy, energy waste and stroke energy return of the technical problem insufficient effectively solved.

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