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Oil pipe centralizing device for operation under pressure

A technology for working under pressure and tubing, applied in drill pipes, casings, drilling equipment, etc., can solve the problems of easy bending of tubing, reduced operation safety and operation efficiency, etc., and achieve the effect of easy operation.

Active Publication Date: 2021-08-13
SICHUAN SHENGNUO OIL & GAS ENG TECH SERVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional snubbing workover operation generally uses a snubbing workover rig to operate the tubing, the tubing is prone to bending due to force, and the tubing string cannot be tripped in full stroke, which greatly reduces the safety and efficiency of the operation

Method used

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  • Oil pipe centralizing device for operation under pressure
  • Oil pipe centralizing device for operation under pressure
  • Oil pipe centralizing device for operation under pressure

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Embodiment Construction

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0021] In the description of the embodiments of the present invention, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is usually placed when the product of the invention is used, or the orientation...

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Abstract

The invention belongs to the technical field of oil and gas drilling and production, and discloses an oil pipe centralizing device for operation under pressure. The oil pipe centralizing device comprises an upper mounting plate and a lower mounting plate which are fixedly connected, wherein a fixed bearing slip is mounted on the upper end surface of the lower mounting plate; a fixed anti-jacking slip is mounted on the lower end surface of the upper mounting plate; a movable plate is arranged above the upper mounting plate; the movable plate is connected with the lower mounting plate through a telescopic column; a centralizing mechanism is arranged on the movable plate; a centralizing hole for allowing an oil pipe to pass through is formed in the centralizing mechanism; the telescopic column comprises a sleeve mounted on the lower mounting plate and a telescopic pole mounted on the movable plate; the telescopic pole is mounted in the sleeve in a sliding mode; a spring is arranged on the bottom of the sleeve; and the spring is connected with the telescopic pole. According to the oil pipe centralizing device for operation under pressure provided by the invention, in an ascending or descending process of a movable beam, the centralizing mechanism can achieve the centralizing effect on the oil pipe, and stroke of the centralizing mechanism can be flexibly regulated, so that operation is convenient.

Description

technical field [0001] The invention belongs to the technical field of oil and gas drilling and production, and in particular relates to a straightening device for oil pipes in pressure operation. Background technique [0002] The traditional snubbing workover operation usually uses a snubbing workover rig to operate the tubing. The tubing is prone to bending due to stress, and it is impossible to trip the tubing string at full stroke, greatly reducing the safety and efficiency of the operation. Contents of the invention [0003] The present invention aims to solve the above-mentioned technical problems at least to a certain extent. For this reason, the object of the present invention is to provide a kind of oil pipe straightening device for working under pressure. [0004] The technical scheme adopted in the present invention is: [0005] A straightening device for an oil pipe under pressure, comprising an upper mounting plate and a lower mounting plate fixedly connecte...

Claims

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Application Information

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IPC IPC(8): E21B17/10
CPCE21B17/1078E21B17/1085
Inventor 罗伟吴珂赖宁刘家屹陈刚肖振华杨磊李成全张项飞钟华陈珂
Owner SICHUAN SHENGNUO OIL & GAS ENG TECH SERVICE CO LTD
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