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Bidirectional screw-type while-drilling well wall shaper

A shaper and helical technology, used in drilling equipment, drill bits, drill pipes, etc., can solve the problems of poor dressing ability and inconvenient use of shaper while drilling equipment, and reduce the risk of drilling tool wear and sticking. , Improve the effect of drilling time and safety

Active Publication Date: 2019-03-01
深圳越海工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art, the present invention provides a two-way helical drilling wall shaper to solve the technical problems of poor dressing ability and inconvenient use of the existing well wall shaping equipment used in drilling operations

Method used

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  • Bidirectional screw-type while-drilling well wall shaper
  • Bidirectional screw-type while-drilling well wall shaper
  • Bidirectional screw-type while-drilling well wall shaper

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. Terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in the preferred embodiment are only for convenience of description, and are not used to limit the scope of the present invention. The scope of implementation and the change or adjustment of its relative relationship shall also be regarded as the scope of implementation of the present invention without substantive changes in technical content.

[0029] Such as Figure 1 to Figure 4 As shown, the two-way helical drilling wall shaper includes a shaper body 2, and female threads 1 and male threads 3 respectively arranged at both ends of the shaper body 2, and at least three A set of helicoids 4 integrally formed with the shaper body 2, the helical structures of the two groups of helixes 4 close to the two ends of the shaper body 2 in the at least three groups of helixes 4 ar...

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Abstract

The invention discloses a bidirectional screw-type while-drilling well wall shaper. The bidirectional screw-type while-drilling well wall shaper comprises a shaper body and further comprises a femalethread and a male thread which are arranged at the two ends of the shaper body correspondingly, at least three sets of spiral bodies are arranged on the shaper body at intervals, spiral structureson the positions, close to the two ends of the shaper body correspondingly, of the two sets of spiral bodiesin the at least three sets of spiral bodies are arranged in reverse, each set of spiral bodies is composed of at least three spiral bladeswhich are distributed in parallel and have spiral angles of 10 to 45 degrees with the center line of the shaper body, the outer diameters of one of the spiralblades on the corresponding set of the spiral bodies are larger than those of other spiral blades on the corresponding set of the spiral bodies to show the eccentric structures, and diameter retaining teeth and cutting teeth are arranged at the centers of the tops of the spiral blades and the edges of the tops of one sides of the spiral blades, at the eccentric positions, on the spiral bodies atintervals correspondingly. According to the bidirectional screw-type while-drilling well wall shaper, while-drilling downwards can be achieved, a well wall is shaped while drilling operation is conducted, the drilling operation time is not increased, and the well wall can be shaped once again when back reaming is conducted.

Description

technical field [0001] The invention relates to the field of drilling devices, in particular to a two-way helical while-drilling well wall shaper, which is used for well-wall shaping while drilling in drilling operations, so as to improve the safety and efficiency of drilling operations. Background technique [0002] Drill string is an important tool in oil and gas exploration and development. Drill pipe and other drilling tools are connected through threaded joints to form the entire drill string. The drill string is a circulation channel for high-pressure drilling fluid, through which the high-pressure drilling fluid lubricates and cools the drill bit, and takes away the cuttings damaged by the drill bit. Conventional drill strings do not have the functions of shaping the borehole wall size and completely destroying the cuttings bed. Therefore, in the construction of horizontal wells, especially horizontal wells with long horizontal sections and extended-reach wells, there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/22E21B10/32E21B10/43E21B10/54
CPCE21B10/32E21B10/43E21B10/54E21B17/22
Inventor 彭美强
Owner 深圳越海工程技术有限公司
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