Water jet cleaning system for large-diameter deep well

A cleaning system and large-diameter technology, which can be used in flushing wellbore, wellbore/well components, earth-moving drilling, etc. effect of duration

Inactive Publication Date: 2013-02-27
钱海鹰
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a method for cleaning a large-diameter deep well with a self-drainage system by using water jets to s

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  • Water jet cleaning system for large-diameter deep well
  • Water jet cleaning system for large-diameter deep well
  • Water jet cleaning system for large-diameter deep well

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Embodiment Construction

[0022] The specific embodiments of the present invention will be described below by taking water jet cleaning of large-diameter deep wells as an example in combination with technical solutions and accompanying drawings.

[0023] 1. Preliminary design of cleaning bench

[0024] According to the minimum inner diameter determined by the largest protrusion 18 on the inner wall 19 of the large-diameter deep well, and considering the safety distance, the maximum outer diameter of the cleaning workbench is designed; according to the principle of non-overturning in the well, and considering the safety factor, the length of the longitudinal connecting rod 9 of the workbench is determined , that is, the height of the workbench.

[0025] 2. Preliminary design of cleaning device

[0026] According to the maximum outer diameter of the cleaning table, the length of the spray gun 12 that is less than the maximum external diameter is initially selected; the spray gun model is selected accord...

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Abstract

The invention discloses a water jet cleaning method for a large-diameter deep well, and belongs to the technical field of water jet cleaning application. The water jet cleaning method is characterized in that a cleaning manner is determined to be multi-spray-gun rotating water jet cleaning according to structural characteristics of the inner wall of the large-diameter deep well and the attributes of attachments on the well wall; multiple spray guns evenly distributed in the circumferential direction can rotate around the axis of the deep well under the drive of a rotating mechanism, and move in the axial direction of the deep well under the drive of a telescopic mechanism; the cleaning quality and the cleaning effect are observed through a video monitoring method; video monitoring cameras and a driving motor of the telescopic mechanism of a cleaning device are fixed on a worktable; the structural size of the worktable is designed according to the inner diameter of the deep well and a safety requirement; the structure of the worktable is designed according to a strength criterion; a high pressure water pipe in the well and a cable harness get in and out of the deep well via an extending and retracting mechanism; control buttons of the motor and the cameras are integrated in a portable control box; and a high pressure water pump and an electric hoist are independently controlled. The water jet cleaning method disclosed by the invention solves the problem that the large-diameter deep well cannot be automatically cleaned.

Description

technical field [0001] A water jet cleaning system for a large-diameter deep well belongs to the field of water jet cleaning application technology, and relates to the technology of cleaning residues on the inner wall of a large-diameter deep well, in particular to the technology of cleaning the residues on the inner wall of a large-diameter deep well. Background technique [0002] After each work of a large-diameter deep well, there will be many solid particles attached to the inner wall of the deep well. At present, the existing cleaning method is to adopt a manual cleaning method. Due to the large inner diameter and length of the deep well, there are deficiencies in manual cleaning, mainly because it takes a long time and the cleaning is not comprehensive. Water jet cleaning technology provides a technical basis for non-contact cleaning of large-diameter deep wells. However, there is no water jet cleaning equipment for large-diameter deep well cleaning at present. Con...

Claims

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Application Information

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IPC IPC(8): E21B21/00E21B47/002
Inventor 钱海鹰边金尧李玉龙吴训涛徐松林胡松伟杨培源高汝明王虹旋姚江涛刘文一匡建平刘鹏
Owner 钱海鹰
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