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Rebounding-prevention device for horizontal directional drilling pipeline back dragging drill rod

A technology of horizontal directional drilling and pipeline back towing, applied in the field of oil exploration, can solve the problem of not being able to meet the requirements of back towing on timeliness and other issues

Active Publication Date: 2015-12-30
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an anti-rebound device for horizontal directional drilling pipeline to pull back the drill pipe, so as to solve the problem that the existing method of loosening the drill pipe cannot meet the timeliness requirements of back-dragging

Method used

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  • Rebounding-prevention device for horizontal directional drilling pipeline back dragging drill rod
  • Rebounding-prevention device for horizontal directional drilling pipeline back dragging drill rod
  • Rebounding-prevention device for horizontal directional drilling pipeline back dragging drill rod

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Embodiment Construction

[0023] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0024] The invention provides an anti-rebound device for a horizontal directional drilling pipeline to pull back a drill pipe.

[0025] See below Figure 1-Figure 3 , is a structural schematic diagram of various aspects of the anti-rebound device.

[0026] Specifically, the anti-rebound device has the following structure.

[0027] A base 5, on which a bracket 1 is arranged. The bracket 1 is hinged with the base 5 through the pin 23 , and the pull rod 2 connects the bracket 1 with the base 5 through the pin 23 .

[0028] Specifically, the connection relationship between the base 5 and the bracket 1 is: the base 5 is fixed with a semicircular card 3 and a fixed ring 4, and the semicircu...

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Abstract

The invention discloses a rebounding-prevention device for a horizontal directional drilling pipeline back dragging drill rod. The rebounding-prevention device comprises a support, a base, a spherical base, a hollow jack shell, clamping blocks, a clamping block base, tracks, a conical shell, a fixing base, a hollow piston, a spring, spring pins and clamping block ejecting rods. Through cooperation between the components, the drill rod can be prevented from rebounding, continuous back dragging of a pipeline is achieved, and working efficiency is improved.

Description

technical field [0001] The present application relates to the technical field of petroleum exploration, in particular to an anti-rebound device for a horizontal directional drilling pipeline to drag a drill pipe back. Background technique [0002] With the development of non-excavation technology, the horizontal directional drilling crossing pipe diameter ranges from Φ610mm to Φ1219mm and then to Φ1422mm on the China-Russia East Line. With the increase of the crossing pipe diameter, the quality of hole formation is difficult to control, resulting in hole collapse and drill sticking problems increase. When the pipe with larger diameter is dragged back or the pipe with smaller diameter but poor hole-forming quality is dragged back, the dragging force will be larger. When the pulling back force exceeds 200 tons, the sudden release of the pulling back force when unloading the drill pipe will cause thread damage, reduce the service life of the drill pipe, and at the same time, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/00E21B19/18
Inventor 刘艳利李松袁欣然张倩韩涛隋付东孙海峰刘永良
Owner BC P INC CHINA NAT PETROLEUM CORP