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Continuous drill rod lifting and placing device for well drilling

A drill pipe and drilling technology, which is applied in the field of continuous lifting and unloading drill pipe devices, can solve the problems of inability to continuously lift or press down, and achieve the effects of good pressure regulation performance and stable output power.

Pending Publication Date: 2019-06-21
美钻石油钻采系统工程(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Drilling and workover are indispensable processes in the drilling process. At present, drilling and workover devices use hydraulic cylinders or top drives to lift or press down the drill pipe. When a drill pipe is lifted or pressed down After that, the hydraulic cylinder or top drive needs to return to the original position to perform the next cycle of operation, and cannot be continuously lifted or pressed down.

Method used

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  • Continuous drill rod lifting and placing device for well drilling
  • Continuous drill rod lifting and placing device for well drilling
  • Continuous drill rod lifting and placing device for well drilling

Examples

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as Figure 1-3 As shown, a continuous lifting drill pipe device for drilling, including a hydraulic system, the hydraulic system includes the following parts:

[0021] The injector circuit is used to control the lifting and lowering of the drill pipe;

[0022] Slip chain compression circuit;

[0023] Chain tensioning circuit.

[0024] Such as image 3 As shown, the above-mentioned chain tensioning circuit includes a tensioning circuit oil suction filter 31, a tensioning circuit ball valve 32, a tensioning circuit quantitative pump 33, a tensioning circuit check valve 35, a tensioning circuit decompression valve 36, two tensioning circuit Position three-way reversing valve 38, chain tensioning oil cylinder 39, tensioning circuit oil return filter 310, tensioning circuit overflow valve 311, chain tensioning oil cylinder 39 is an a...

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PUM

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Abstract

The invention relates to the technical field of petroleum drill rod devices, in particular to a continuous drill rod lifting and placing device for well drilling. The device comprises a hydraulic system, and the hydraulic system comprises the following parts: an injector loop for controlling the upward lifting and downward pressing actions of a drill rod, a slip chain compressing loop used for enabling all automatic reset hydraulic cylinders to stably and synchronously move, a chain tensioning loop, used for enabling all chain tensioning oil cylinders to stably and synchronously move. Therefore the output pressure of the hydraulic system can be well regulated and controlled, the purpose of stably outputting power is achieved, and the injector loop, the slip chain compressing loop and the chain tensioning loop have good pressure regulation and control performance and overload protection and buffering functions are fulfilled.

Description

technical field [0001] The invention relates to an oil drilling pipe device, specifically, a continuous lifting and lowering drilling pipe device. Background technique [0002] Drilling and workover are indispensable processes in the drilling process. At present, drilling and workover devices use hydraulic cylinders or top drives to lift or press down the drill pipe. When a drill pipe is lifted or pressed down Finally, the hydraulic cylinder or top drive needs to return to the original position to perform the next cycle of operation, and cannot be continuously lifted or pressed down. The invention relates to a continuous lifting and lowering drill pipe device for drilling, which is used together with a continuous lifting and lowering drill pipe device of our company, and can complete continuous lifting or lowering of the drill pipe. Contents of the invention [0003] The object of the present invention is to provide a continuous lifting and lowering drill pipe device for ...

Claims

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Application Information

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IPC IPC(8): E21B44/00E21B19/00
Inventor 汪智
Owner 美钻石油钻采系统工程(上海)有限公司
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