Automatized shaft mouth operation clamp for petroleum well workover

Abstract

The invention discloses an automatic wellhead operation tong used for petroleum workover. The automatic wellhead operation tong mainly solves the problems that in prior petroleum workover field, low working efficiency, high labor intensity, the bad security, and serious environmental pollutions are caused because the operation for loading and unloading pipe column is accomplished by a manually-operated opening type hydraulic tong and a replacing elevator. The automatic wellhead operation tong is characterized in that the operation tong integrates a close type power tong and a power slip into a whole, and the operation tong is composed of a main tong, a back tong, a slip and vertical guide rails, supporting frames extending from the both sides of the slip are used for installing the two vertical guide rails, the main tong and the back tong can be moved vertically along the guide rails, and the enclosed space between the main tong and the back tong can be used for collecting residual liquid of the pipe column. The automatic wellhead operation tong has the advantages that automatic wellhead operation tong can realize the automatic screwing and unscrewing of the screw threads from the tube and the environment-friendly operation; the tong can be firmly clipped at the tong mouth, thus components are not needed to be replaced in a wide range, and the working efficiency is improved greatly. The clipping performance is good, the working is reliable, and the social and economic benefits are quite remarkable.

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tongs in the prior art have the outstanding advantage that the tong head is open and flexible, and the pipe string is withdrawn immediately after each make-up or breakout, without hindering other operations at the wellhead, so it is widely used by domestic...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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