Workover operation mechanization system replacing well mouth manual operation

Abstract

The invention discloses a workover operation mechanization system replacing well mouth manual operation, which mainly solves the problem that mechanization and automation can not be realized when the well mouth operation is carried out in the existing well reparation. In the invention, an opening power tong, a power slip, a lift sub for conveying tubular column and a mobile mechanism of a conveying power tong are integrated; the power tong comprises a main tong and a backup tong, and is installed on the mobile mechanism; the lift sub is connected on a derrick through a big hook; the upper layer of a mobile mechanism is a working machine; the lower layer thereof is a base; the two layers can move relatively; the power tong is installed on the upper layer; the top part of the upper layer isprovided with a righting machine hand used for adjusting the position when the tubular column is loaded and uploaded; the movement of the power tong is finished through the mobile mechanism when the tubular column is loaded and uploaded; and the top part of the mobile mechanism is provided with a righting machine hand which is matched with the lift sub to move the tubular column when the tubular column is loaded and uploaded. The system of the invention improves automation degree of the tubular column loading and uploading, and improves the accuracy of the position of tubular column movement of the tubular column loading and uploading, and increases economic benefits.

Description

Technical field: [0001] The invention relates to an operation mechanized system for loading and unloading pipe threads when carrying out petroleum workover wellhead operations on an oil field, and specifically relates to a workover operation mechanized system which can replace the manual operation of the wellhead. Background technique: [0002] Workover operations are necessary to keep oil and water injection wells producing as planned. The make-up, break-out and tripping of downhole tools such as tubing, sucker rod, packer, and distribution device are an important part of oil well workover operations. The existing oil well workover string operations are mainly performed by manual open-ended Hydraulic clamps and reversing elevators to complete. [0003] The analysis of the existing wellhead operation tools found that the workover tongs weighed hundreds of kilograms and were hung on the workover frame, requiring manual advancement or removal from the wellhead, and frequent r...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that mechanization and automation cannot be realized in the existing workover wellhead operation, the present invention provides a mechanized system for workover operation instead of manual operation at the wellhead. And the automatic control is realized after the elevator is integrated. After the implementation, the existing workover operation process can be changed, so that the wellhead operation of the workover can reach a higher level of mechanization and automation, and ensure that the workers are completely away from the wellhead, which can be realized by remote control. Operations such as make-up and break-out of the pipe string

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