Self-walking and self-turning guide drilling system

A guiding and self-changing technology, applied in the automatic control system of drilling, directional drilling, drill pipe, etc., to achieve a wide range of applications

Pending Publication Date: 2020-12-18
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the research on the traveling feed and direction-changing drilling of the downhole torque self-balancing cabled drilling system is still blank. The scope of application is of great significance

Method used

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Embodiment Construction

[0033] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. It should be understood by those skilled in the art. The content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention. In order not to obscure the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

[0034] In the description of the present invention, it should be understood that the terms "first", "second", and "third" are only for the purpose of description, and the terms "first", "second", and "third" are limited to Characteristics do not indicate any order, quantity or importance, but are used to distinguish different components.

[0035]In the description of the present invention, "plurality" means at least two, such ...

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Abstract

The invention discloses a self-walking and self-turning guide drilling system, and relates to self-walking and self-turning guide drilling systems suitable for the technical fields of geological drilling, energy drilling, scientific drilling, rescue drilling and the like. The drilling tool system is composed of a slurry circulation assembly, a first supporting assembly, a first driven turning assembly, a first walking assembly, a second supporting assembly, a second driven turning assembly, a second walking assembly, a third supporting assembly, a parameter measurement and control cavity, a driving turning and orientation assembly and a self-balancing drilling assembly. According to the drilling system, the drilling system can realize autonomous pressurized walking, automatic direction changing and guiding, near-bit in-situ monitoring, real-time data transmission and accurate control on the drilling system in a well, and is a highly integrated and automatic guiding drilling system; andthe blank of the underground torque self-balancing cabled drilling tool system in the aspects of walking feeding and turning drilling is filled up, the application range is wide, and great significance is achieved.

Description

technical field [0001] The invention belongs to the technical field of drilling engineering tools, and in particular relates to a self-propelled self-direction variable-steering drilling system suitable for geological drilling, energy drilling, scientific drilling and rescue drilling and other technical fields. Background technique [0002] "A downhole torque self-balancing cabled drilling tool system" proposed by the inventor, patent number: CN201710082518.8, has three main advantages: one is to cancel the drilling rig. The drive near the drill bit replaces the rotary drive of the drilling rig, the mud circulation while drilling replaces the circulation of the ground mud pump, and the pressure-on-bit adjustment system near the drill bit replaces the hook of the drilling rig to control the pressure on drill; the second is to get rid of the dependence on the depth of the drill pipe. The armored cable tube is used as the main transmission medium, which greatly reduces the trip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B21/00E21B7/04E21B7/06E21B17/20E21B17/02E21B47/00E21B44/00
CPCE21B7/04E21B7/061E21B7/067E21B17/02E21B17/203E21B21/00E21B44/00E21B47/00
Inventor 高科张聪谢晓波
Owner JILIN UNIV
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