a hydraulic clutch

Abstract

The invention discloses a hydraulic clutch, which comprises a sequentially connected hydraulic oil pump assembly, a mechanical engagement and separation assembly controlled by liquid flow, a power assembly and a counter torque assembly; power is provided by the hydraulic oil pump assembly , and use the engagement and disengagement assembly to control the rotation or non-rotation of the power assembly, and the anti-torque assembly is used to overcome the reverse rotation torque generated by the power drill at the lower end of the hydraulic clutch. The invention can solve the problem that the upper drilling tool of the power drilling tool cannot rotate during the directional drilling in the drilling process, transform the traditional sliding directional drilling into rotary drilling, greatly reduce the frictional resistance during drilling, and improve the drilling efficiency of the wellbore. The ability to extend is of great significance to the improvement of drilling technology.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to a hydraulic clutch. Background technique [0002] With the accelerated development of my country's economy, my country's demand for energy has accelerated. With the long-term exploitation of shallow oil and gas resources, shallow resources continue to decrease. In order to meet the growing demand, the field of oil and gas exploration and development has shifted from shallow to deep / extra-deep layers, from shoal and shallow seas to deep water, and from conventional oil and gas to unconventional oil and gas. , to further expand. Complex drilling such as deep wells, ultra-deep wells, and deepwater drilling accounts for an increasing proportion of exploration and development projects in major oil and gas fields in China, but it is difficult to control the wellbore trajectory in complex drilling. At present, in the process of drilling directional drilling, most of t...

AI Technical Summary

Problems solved by technology

Complex drilling such as deep wells, ultra-deep wells, and deep-water drilling accounts for an increasing proportion of major domestic oil and gas field exploration and development projects, but it is difficult to control the wellbore trajectory in complex drilling

At present, in the directional drilling process of drilling, most of them are sliding drilling, that is, the upper drilling tool of the power drilling tool only slides axially with the wellbore trajectory. For complex wells, sliding drilling in extended-reach wells has high frictional resistance, and the drilling footage is slow. And prone to drag problems

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