Open hole side tracking seat sealing machine for air drilling

Abstract

The invention relates to an open hole side tracking seat sealing machine used in air drilling field in petroleum and natural gas industry, and solves the problem that a whipstock in open hole drillingis hard to fix. The upper end of a control pup joint is in screwed connection to the lower end of the whipstock, the lower end of the control pup joint is in screwed connection to the upper end of anoil storage barrel, and a gas inlet channel is connected to a gas conveying runner in the whipstock; the lower end of the oil storage barrel and the upper end of a pressurizing barrel are fastened byplugging bolts, and an oil pressing piston is placed in an inner cavity of an oil storage chamber; the piston end of the pressurizing piston is placed in an exhaust chamber of the pressurizing barrel, a piston rod of the pressurizing piston is placed in an oil inlet throat of the pressurizing barrel, and the upper end of an actuating piston is placed in a pressure oil chamber of the pressurizingbarrel; the upper end of an anchoring barrel is in screwed connection to the lower end of the pressurizing barrel, and the lower end of the anchoring barrel is in screwed connection to the upper end of a guiding shoe; a cone body is placed in an inner cavity of the anchoring barrel, and the upper end of the cone body is in screwed connection to the lower end of the actuating piston. The open holeside tracking seat sealing machine converts compressed air which is relatively small in pressure into a pressure oil liquid which is large in pressure, so that the whipstock is seat-sealed reliably inan open hole well 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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