Large-fall mountain directional drilling slurry plugging system and method and electronic equipment

Abstract

The invention belongs to the technical field of pipeline crossing engineering, and particularly relates to a large-fall mountain directional drilling slurry plugging system and method and electronic equipment. The large-fall mountain directional drilling slurry plugging system and the method and the electronic equipment aim to solve the problem of poor slurry plugging effect in directional drilling crossing of the large-fall mountain. The system comprises a reaming assembly, a slurry plugging assembly and an auxiliary bearing assembly, and the auxiliary bearing assembly is arranged outside the reaming assembly to bear the reaming assembly; the reaming assembly comprises a reaming device and a drill rod; the slurry plugging assembly comprises an isolation sleeve and a rotary blowout preventer, the drill rod is sleeved with the isolation sleeve, one end of the isolation sleeve extends into a rock mass penetrating point, and the other end of the isolation sleeve extends in an overhanging mode; the rotary blowout preventer is arranged at the end part, away from the rock mass penetration point, of the isolation sleeve, and the rotary blowout preventer is hermetically connected with the isolation sleeve in an abutting mode through a connecting assembly; and a positioning assembly used for conducting center positioning on the drill rod is arranged inside the isolation sleeve. Effective water-proof plugging of the large-fall mountain can be achieved through the large-fall mountain directional drilling slurry plugging system and the method and the electronic equipment.

Description

technical field [0001] The invention belongs to the technical field of pipeline crossing engineering, and in particular relates to a directional drilling mud plugging system, method and electronic equipment for large-drop mountains. Background technique [0002] Since the introduction of horizontal directional drilling in China in the mid-1980s, the construction technology has become more and more mature, and there are many types of strata to be traversed. Among them, the technical requirements for directional drilling in mountains are high, and there are many construction difficulties and high risks of crossing. Especially when carrying out directional drilling through a mountain with a large drop, it will face serious problems such as permeable water dilution and damage to the mud system, and the large drop will lead to no mud in the hole, wear and tear on the drilling tool and pipeline anti-corrosion layer. [0003] For mountain permeation, plugging agents are generally u...

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Problems solved by technology

[0004] In order to solve the above problems, that is, in order to solve the problem of poor mud plugging effect in the directional drilling of large drop mountains, the present invention provides a large drop mountain directional drilling mud plugging system, method and electronic equipment

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