Annular multi-field coupling simulation drilling experiment method and apparatus through horizontal directional drilling

A technology of horizontal directional drilling and experimental equipment, applied in teaching models, educational tools, instruments, etc., to achieve the effects of wide application, reliable experimental results, and many controllable parameters

Active Publication Date: 2016-03-09
新疆鼎立非开挖工程有限公司
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Problems solved by technology

[0003] In order to solve the deficiencies of the prior art, the present invention provides a horizontal directional drilling annular space multi-field coupling simulation drilling experiment method and experimental system, aiming at the gap between the drill pipe, cuttings and mud in the annular space during the HDD drilling process. Coupling and interaction problems, real-tim

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  • Annular multi-field coupling simulation drilling experiment method and apparatus through horizontal directional drilling
  • Annular multi-field coupling simulation drilling experiment method and apparatus through horizontal directional drilling
  • Annular multi-field coupling simulation drilling experiment method and apparatus through horizontal directional drilling

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with drawings and embodiments.

[0049] The invention provides a multi-field coupling simulation drilling experiment method for horizontal directional drilling annular space, comprising the following steps:

[0050] (1) Build the experimental environment:

[0051] Place the transparent pipe horizontally, pass the drill pipe horizontally through the transparent pipe, one end of the drill pipe is connected to the speed-regulating motor, and the other end hangs the weight through the transfer box, and more than 2 pairs of ultrasonic Doppler probes are arranged on the transparent pipe, each The two ultrasonic Doppler probes in the center are respectively located on the top and side of the transparent pipe, each pair of ultrasonic Doppler probes is evenly distributed along the axial direction of the transparent pipe, and cameras are placed on the side and top of the transparent pipe;

[0052] (2) Adjust th...

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Abstract

The invention provides an annular multi-field coupling simulation drilling experiment method through horizontal directional drilling. The method comprises the steps: building an experiment environment, conducting state initialization, and conducting mutual coupling motion analysis between a drilling rod and slurry, between a drilling rod and rock debris and among slurry, a drilling rod and rock debris by adjusting the slurry input speed, adjusting rock debris injection speed and changing the mass of a weighting counterweight. The invention also provides an annular multi-field coupling simulation drilling experiment apparatus through horizontal directional drilling. The apparatus comprises a slurry circulatory system, a drilling tool revolution system, a rock debris injection system, a slurry flow field monitoring system and an image processing system. The distribution situation of annular slurry flow fields, the spatial movement form of a drilling rod and the motion state of a rock debris bed can be collected and analyzed in real time according to mutual coupling interaction among a drilling rod, rock debris and slurry in an annular space during horizontal directional drilling (HDD).

Description

technical field [0001] The invention relates to a horizontal directional drilling annular space multi-field coupling simulation drilling experiment method and an experiment device, which belong to the field of non-excavation engineering. Background technique [0002] Horizontal Directional Drilling (HDD) is the use of drilling equipment installed on the surface to drill into the stratum at a small incident angle relative to the ground to form a pilot hole, and then expand the pilot hole to the required size and lay the pipeline (line ) of a technology. At present, horizontal directional drilling technology has been widely used in municipal pipelines and large-diameter long-distance oil and gas pipelines crossing rivers. With the rapid development of my country's economy, the demand for energy continues to increase, and the size of pipes constructed by horizontal directional drilling (HDD) is also increasing. According to the analysis of the failure cases of HDD projects in...

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Application Information

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IPC IPC(8): G09B25/02
CPCG09B25/02
Inventor 曾聪闫雪峰马保松王福芝杨善
Owner 新疆鼎立非开挖工程有限公司
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