Automatized shaft mouth operation clamp for petroleum well workover

Abstract

Disclosed is an automatic wellhead operation tong used for oil well servicing. The invention mainly solves the problems of low working efficiency, high labor intensity, bad security and serious environmental pollution in the existing oil well servicing field which are caused because the operations of mounting and dismounting a pipe column is completed through an open type hydraulic tong and a replacing elevator which are manually operated. The automatic wellhead operation tong is characterized in that the operation tong integrates a close type power tong and a power slip into one body and is composed of a main tong, a back-up tong, a slip and vertical guide rails, supports extended out from both sides of the slip are used for installing two vertical guide rails, the main tong and the back-up tong can be vertically moved along the guide rails, and the enclosed space between the main tong and the back-up tong can be used for collecting residual liquid from the pipe column. The inventionhas the advantages that the automatic screwing and unscrewing of the threads of the pipe and the environment protective operation can be realized; the mouth of tongs in the positive and reverse directions can be firmly clipped, so parts are not required to be replaced in a large range, and the working efficiency is greatly improved. The invention has the advantages of good clamping performance, reliable working and quite obvious social and economic benefits.

Description

Technical field: [0001] The invention relates to an automatic wellhead operation device used in the field of workover operations of oil production wells in an oil field, in particular to an automatic wellhead operation tong used for loading and unloading pipe threads. 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. The open-type hydraulic tongs in the prior art have the outstanding advantage that the tong head is open and flexible, and the pipe string is withdrawn immediately after each make-up or breakout, without hindering other operations at the wellhead, so it is widely used by domestic...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem in the existing field of oil workover, the operation of loading and unloading pipe strings is mainly completed by manually operated open-type hydraulic tongs and reversing elevators, resulting in low operating efficiency, high labor intensity for workers, poor safety, and serious environmental pollution. etc., the present invention provides an automatic wellhead tong for petroleum workover, which integrates closed-end power tongs and power slips into one body, so that the operator can stay away from the wellhead during operation, It can realize the automation and environmental protection operation of loading and unloading pipe threads, no need to replace parts in the wide range of forward and reverse clamping of the jaws, good clamping performance, high operating efficiency, and very good social and economic benefits

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