An open hole sidetracking setter for air drilling

Abstract

The invention relates to an open hole sidetracking setting device used in the field of air drilling in the oil and gas industry. It solves the problem of difficult fixation of the skewer in open-hole drilling. The upper end of the control short-circuit is connected with the screw thread at the lower end of the tilter, the lower end of the control short-circuit is connected with the upper end of the oil storage cylinder with a screw thread, and the air intake channel is connected with the internal delivery flow channel of the tilter; the lower end of the oil storage cylinder is connected with the booster cylinder The upper end of the body is fastened with a plug screw, and the oil pressure piston is placed into the cavity of the oil storage chamber; the piston end of the booster piston is placed into the exhaust chamber of the booster cylinder, and the piston rod of the booster piston is placed into the inlet of the booster cylinder. In the oil throat, the upper end of the actuating piston is placed in the pressure oil chamber of the pressurized cylinder; the upper end of the anchoring cylinder is connected with the lower end of the pressurized cylinder with threads, and the lower end of the anchoring cylinder is connected with the upper end of the guide shoe; the cone is placed into the inner cavity of the anchoring cylinder, and the upper end of the cone is connected with the lower end of the actuating piston with a screw. The invention converts the compressed air with low pressure into the pressure oil with high pressure, so as to ensure the reliable setting of the skewer in the open hole section.

Description

technical field [0001] The invention relates to an open hole sidetracking setting device used in the field of air drilling in the oil and gas industry. Background technique [0002] In the oil and gas industry, the air drilling technology is to turn the air into compressed air with a pressure of 1.2-2.0 MPa through the air compressor unit on the ground, and inject it into the vertical pressure pipeline on the drilling platform through the gas pipeline manifold, replacing ordinary drilling with high-pressure air It is an underbalanced drilling mode in which cuttings produced during drilling are carried to the ground, while cooling the drill bit, and then discharged into the sand pit through a special sand discharge pipe. Compared with the traditional drilling technology, air drilling can greatly increase the drilling speed, shorten the engineering cycle, and also help reduce the loss of the drill bit, save the cost of drilling fluid, and reduce the engineering investment. It ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide an open-hole sidetracking setter for air drilling in order to solve the problem of difficulty in fixing the deflector in open-hole drilling.

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