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A UHP Abrasive Jet Downhole Cutting Tool

An abrasive jet, cutting machine technology, applied in abrasive jet machine tools, abrasives, used abrasive processing devices, etc., can solve the problems of easy damage to cutting knives and marine environmental pollution

Active Publication Date: 2017-04-05
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, energy-concentrated blasting seriously pollutes the marine environment. The mechanical cutter can only cut one layer of casing at a time and the cutter is easily damaged.

Method used

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  • A UHP Abrasive Jet Downhole Cutting Tool
  • A UHP Abrasive Jet Downhole Cutting Tool
  • A UHP Abrasive Jet Downhole Cutting Tool

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] The ultra-high pressure abrasive jet downhole cutting tool of the present invention includes an external support module, a hydraulic drive module, a centering module, an ultra-high pressure rotary cutting head module and a cutting speed monitoring module connected to each other.

[0030] The external support module includes a first flange 2 with a high-pressure pipeline connector 24 in the middle, lifting lugs 1 can be evenly arranged on the upper part of the first flange 2, and the side wall of the first flange 2 Flat-head screws 25 for fixing high-pressure pipeline joints 24 are provided, and the lower part of the first flange 2 is connected with a second flange 5 through four uniformly vertically arranged upper support columns 3, and the upper support columns 3 Perpendicular to between the first flange 2 and the second flange 5, the second flange 5 is connect...

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Abstract

The invention discloses an ultrahigh pressure abrasive jet downhole cutting machine tool. The ultrahigh pressure abrasive jet downhole cutting machine tool comprises an external support module, a hydraulic drive module, a righting module, an ultrahigh pressure rotation cutting head module and a cutting speed monitoring module which are connected with one another. The ultrahigh pressure abrasive jet downhole cutting machine tool is capable of conducting whole cutting and recycle in a structure, has the advantages of safety, high efficiency, environmental protection and low energy consumption, and is suitable for the cutting and demolition operations to pile legs and wellheads of abandoned platforms.

Description

technical field [0001] The invention relates to a downhole cutting tool, more specifically, relates to an ultra-high pressure abrasive jet downhole cutting tool. Background technique [0002] The most important and the first process to be solved in the abandonment of offshore oil and gas production facilities is the cutting and dismantling of the pile legs and wellheads of the abandoned platform. This should not only consider the available technology, cost, safety, reliability, and laws and regulations that must be complied with More importantly, we must focus on environmental protection issues. Therefore, the configuration of efficient, safe and environmentally friendly abandoned well cutting technology and equipment is the premise and guarantee for the safe dismantling of offshore platforms. [0003] According to the requirements of laws and regulations, the platform legs and the wellhead need to be cut and recovered at a certain depth below the seabed mud surface. The ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24C3/02B24C5/00B24C9/00
Inventor 马认琦王超鞠少栋王俊姬刘占鏖董健王世强
Owner CHINA NAT OFFSHORE OIL CORP
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