Top drive drilling device coupling clamping type sleeve lowering device and application method thereof

Abstract

The invention relates to a top drive drilling device coupling clamping type sleeve lowering device and an application method of the top drive drilling device coupling clamping type sleeve lowering device. The top drive drilling device coupling clamping type sleeve lowering device comprises a top drive hydraulic system. A central pipe is arranged below the top drive hydraulic system. A rotating sealing connecting plate, a suspended supporting base, a main hydraulic cylinder and a pincers head body are sequentially arranged on the central pipe from top to bottom. A sleeve hanging clamp is arranged below the pincers head body. A suspended body is arranged at the lower end of the suspended supporting base. The lower end face of the suspended body is fixedly connected with a hanging ring. The lower end of the hanging ring is connected with the sleeve hanging clamp. A hanging ring inclined hydraulic cylinder is arranged on the surface of the hanging ring. The central pipe is connected with the top drive device, the hydraulic cylinder provides main power so as to drive the central pipe to drive the pincers head body, the pincers head body firmly grasps a sleeve through coordination of two wedge-shaped flange inclined faces, the sleeve can be appropriately buckled in a rotating mode and pressed downwards in the sleeve lowering process while the sleeve is prevented from falling, and therefore the drilling tool jamming phenomenon is prevented, the top drive drilling device coupling clamping type sleeve lowering device is safe and reliable, work efficiency is improved, and the labor amount of workers is decreased.

Description

technical field [0001] The utility model relates to a casing running device, in particular to a top drive drilling equipment coupling clamp type casing running device, which belongs to the technical field of petroleum cementing. Background technique [0002] The top drive drilling device is a new type of major oil drilling technology equipment developed since the 1980s. It replaces the traditional rotary table and kelly and directly drives the drill string to drill. It has the advantages of precise control of torque and speed. During the drilling process, or during the tripping process, the mud can be circulated while rotating the drill string, which greatly reduces the occurrence of complicated situations such as obstruction and drill sticking. [0003] Overseas top drive casing running devices were developed earlier, and mainly include two types: internal clamping type and external clamping type. The inner card type top drive casing running device clamps the inner surface...

AI Technical Summary

Problems solved by technology

The above defects and deficiencies still exist, affecting the safety and efficiency of the casing running device, and restricting the promotion and application of the casing running device

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