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Novel deepwater large-diameter hydraulic cutting knife and efficient blade device

A large-diameter, blade technology, applied in the field of new deep-water large-diameter hydraulic cutters and high-efficiency blade devices, can solve the problems of low cutting efficiency, small number of cutting blades and chip edges, and inconvenient chip removal, so as to increase the number and discharge Effects of flutes, improved service life and cutting efficiency

Pending Publication Date: 2018-02-16
深圳市远东石油钻采工程有限公司 +2
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  • Description
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a new type of deep-water large-diameter hydraulic cutter and high-efficiency blade device for the above-mentioned defects of the prior art, aiming to solve the problem of cutting blades and chips caused by inconvenient chip removal in the prior art. The number of blades is small and the cutting efficiency is low

Method used

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  • Novel deepwater large-diameter hydraulic cutting knife and efficient blade device
  • Novel deepwater large-diameter hydraulic cutting knife and efficient blade device
  • Novel deepwater large-diameter hydraulic cutting knife and efficient blade device

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0034] In the present invention, the new type of deep water large-diameter hydraulic cutter and the high-efficiency blade device are connected to the drilling platform, which belongs to the deep water operation tool. It is quite different from the ordinary cutting device. It is easy to understand that because it needs to be operated in deep water, the operation and control are more difficult. Big.

[0035] You must know that the cost of using a drilling platform is extremely high. For example, the 981 drilling platform is equipped with eight 44,000-kilowatt diesel generators, and the pow...

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Abstract

The invention discloses a novel deepwater large-diameter hydraulic cutting knife and efficient blade device which comprises cutting knife blades. A filing discharging groove is longitudinally formed in the middle of the outer side of each cutting knife blade, and a first alloy filing cutting edge is fixed to the side surface of the outer side located on the left side or the right side of each filing discharging groove. A second alloy filing cutting edge is fixed to the side surface of the right side or the left side of each cutting knife blade, and the first alloy filing cutting edges and thesecond alloy filing cutting edges are located on the same side of the filing discharging grooves. According to the novel deepwater large-diameter hydraulic cutting knife and efficient blade device, metal filings generated when the first alloy filing cutting edges cut sleeves can be discharged through the filing discharging grooves, thus the current condition that in the prior art, cutting knife blades and filing cutting edges are arranged in a one-to-one correspondence mode is changed, the number of the filing cutting edges is increased, and the cutting efficiency of the novel deepwater large-diameter hydraulic cutting knife and efficient blade device is improved.

Description

technical field [0001] The invention relates to the technical field of deepwater well abandonment cutting equipment, in particular to a novel deepwater large-diameter hydraulic cutter and high-efficiency blade device. Background technique [0002] The development of oil and gas fields generally goes through the whole process of exploration, development project construction, production and disposal, and disposal is the final link. Relevant international laws and regulations stipulate that after offshore oil and gas fields stop production operations, if there is no other use or reasonable reason, they must be prepared for decommissioning and disposal. Decommissioning is the transition of a petroleum installation from operational to closed, without activities related to hydrocarbon status (excluding activities related to removal and other disposal). Disposal is the process of moving petroleum installations to their final destination and reusing, recycling or storing them on si...

Claims

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Application Information

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IPC IPC(8): E21B29/00
CPCE21B29/005
Inventor 贾银鸽郭德林刘健许亮斌张武辇张伏娟张玉亭
Owner 深圳市远东石油钻采工程有限公司
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