Torsional impact buckle releasing device

Abstract

The invention belongs to the technical field of petroleum drilling, and particularly relates to a torsional impact buckle releasing device. According to the specific technical scheme, two ends of thetorsional impact buckle releasing device are connected with two portions to be released of a device to be released correspondingly; the torsional impact buckle releasing device comprises a spline shaft arranged inside; a spline is arranged on the outer surface of the middle of the spline shaft in the axial direction, and a spline sleeve is arranged on the outside of the spline shaft in a sleevingmanner; the spline shaft can rotate around a center shaft within the limited range of the spline groove; and the outside of the spline shaft is fixedly connected with limiting structures of the splineshaft, the spline is located between motion tracks limited by the two limiting structures, a torque releasing groove with the length larger than that of the spline is formed in the middle of the inner surface of the spline sleeve, and the spline shaft can do linear reciprocating motion between the motion tracks limited by the two limiting structures. According to the torsional impact buckle releasing device, buckle releasing is controlled through a pure mechanical structure, the torsional impact buckle releasing device is not prone to losing efficacy in a complex and changeable environment under a well, and is simple to operate, and buckle releasing is reliable.

Description

technical field [0001] The invention belongs to the technical field of petroleum drilling, and in particular relates to a twist releaser. Background technique [0002] During oil and natural gas drilling, due to the complexity and unpredictability of the geological structure, the drilling fluid may not be suitable for the conditions in the well, resulting in the drilling tools in the hole being buried by rock powder, cuttings or quicksand. It is also difficult to lift and recycle. Such accidents of buried drilling in holes where the flushing fluid cannot circulate, due to factors such as mechanical failure, wire rope breakage, hole wall collapse, etc., cause the drill bit to fall into the bottom of the hole, which is usually called "drill drop". Once a "drill drop" accident occurs, the entire drilling equipment needs to be shut down for maintenance. The longer it takes to solve the "dropped drill" accident, the greater the energy loss it causes, and the greater the economi...

AI Technical Summary

Problems solved by technology

Although the use of electrical structure control can achieve relief quickly, on the one hand, the energy consumption generated during its start-up and use is relatively large; Energy consumption and failure; at the same time, if the electrical structure is powered by batteries, once damage occurs in the complex environment underground, the battery will leak, etc., which will easily cause environmental pollution

However, if a cutter is used for cutting and release, the operation is inconvenient and time-consuming, the downtime of the drilling machine is long, and there may be deviations between the cutting part and the position to be released, which will bring greater losses.

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