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Device for adjusting centration of complete vehicle-mounted service machine to wellhead

A technology of adjusting device and workover rig, applied in the directions of support device, drilling equipment, drilling equipment and method, etc., can solve the problems of low adjustment efficiency, poor centering accuracy, and no given

Inactive Publication Date: 2012-01-04
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Obviously, this method is difficult to operate, poor in centering accuracy, and low in adjustment efficiency, but there is no device that can solve such problems in the prior art

Method used

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  • Device for adjusting centration of complete vehicle-mounted service machine to wellhead
  • Device for adjusting centration of complete vehicle-mounted service machine to wellhead
  • Device for adjusting centration of complete vehicle-mounted service machine to wellhead

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with accompanying drawing:

[0040] figure 1 Schematic diagram of the working state of the vehicle-mounted workover rig after the centering wellhead adjustment device is installed. figure 2 It is a schematic diagram of the overall structure of the centering wellhead adjustment device of the vehicle-mounted workover rig according to the present invention. As shown in the figure, the centering wellhead adjustment device of the vehicle-mounted workover rig has two main bodies: The parts are called the vehicle body adjustment positioning unit 1 and the wellhead positioning unit 6 respectively. in, image 3 It is a structural schematic diagram of the car body adjustment and positioning unit of the present invention. As shown in the figure, the car body adjustment and positioning unit 1 is composed of a driving end moving track 2, a driven end moving track 3 and a positioning beam 4 connected between the ...

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Abstract

The invention discloses a device for adjusting the centration of a complete vehicle-mounted service machine to a wellhead in order to solve the problem that the conventional vehicle-mounted service machine is centered to a wellhead difficultly. In the device, a vehicle body adjusting and positioning unit and a wellhead positioning unit are integrated; an installation position of the device for adjusting the centration of the complete vehicle-mounted service machine to the wellhead is determined through a wellhead base positioning device; a horizontal position of the complete machine is adjusted by observing a universal leveling bubble until the device is horizontal; and the complete vehicle-mounted service machine is driven to the vehicle body adjusting and positioning unit, so that wheels are positioned on power sliding blocks at a driving end and a driven end and the service machine can be limited by front and rear limiting blocks, and thus a front-rear position of the service machine is determined. On the premise of defining left and right offset of the service machine, the left and right movement of the vehicle body is realized by adjusting a manual double-function hydraulic pump, so that the adjustment of the left position and the right position of the service machine is realized. The device has a simple structure and is convenient to install; due to rolling friction, a friction force is reduced; therefore, the wellhead centration operation saves power and is simple and accurate, and the working efficiency of well repair is improved.

Description

technical field [0001] The invention relates to a centering wellhead device for a workover rig used in oil workover operations on an oil field, in particular to a centering wellhead adjustment device for a vehicle-mounted workover rig that is suitable for operations with a built-in derrick in an oil field. Background technique [0002] In various constructions of oil and gas development and production, workover operation is an important link. However, in this field, there are currently the following technical problems that need to be solved urgently: In oil workover operations, the wellhead alignment of the workover rig is a key link to ensure the normal operation of the workover. But, in the existing domestic oil workover operations, the centering wellhead of the vehicle-mounted workover rig still reaches the centering wellhead of the workover rig by driving the vehicle to adjust the front, rear, left and right positions of the workover locomotive body after the driver vis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/00E21B7/02E21B15/00
Inventor 常玉连高胜庞伶伶王妍王晶任福深姜开勋
Owner NORTHEAST GASOLINEEUM UNIV
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