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Rotary steering well drilling control system and control method thereof

A technology of rotary steerable drilling and control system, which is applied to the automatic control system of drilling, directional drilling, drilling equipment, etc., and can solve problems such as difficult to achieve automation, intelligence, and high-efficiency drilling

Active Publication Date: 2015-11-11
CHONGQING QIANWEI SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, the applicant has found in practice that it is difficult to realize the automation, intelligence and high-efficiency drilling required by the modern oil exploration industry only by proposing the technical scheme of "static offset push-to-type rotary steerable drilling tool (notification number: CN103939017A)". drilling

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  • Rotary steering well drilling control system and control method thereof
  • Rotary steering well drilling control system and control method thereof
  • Rotary steering well drilling control system and control method thereof

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Embodiment Construction

[0074] The present invention will be further described in detail below in conjunction with the accompanying drawings. Wherein, the descriptive terms such as up, down, left, right, etc. are used for the description, with the purpose of helping readers to understand, but not intended to limit.

[0075] Such as Figures 1 to 4 As shown, a rotary steerable drilling control system includes a ground control system (not shown in the figure), a ground control box (not shown in the figure), a bypass valve (not shown in the figure), an MWD system (not shown in the figure) not shown), a downhole master control board (not shown) with a decoding unit and a steering tool that can be controlled (the "steering tool" here is the static offset push-to-type rotary steering drilling tool of the publication number CN103939017A) The main control board 25 of the middle rib 5 action; wherein,

[0076] The ground control system includes a host computer equipped with control software;

[0077] The g...

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Abstract

The invention discloses a rotary steering well drilling control system and a control method thereof. The control system comprises a ground control system, a ground control box, a bypass-valve, an MWD system, an underground master control board provided with a decoding unit and a main control board capable of controlling rib movement of a guide tool; the control system further comprises an underground electric generator, electric generator installation segments, a coupler, coupler installation segments used for installing the coupler, a near-bit posture data obtaining component and a power panel. The control method comprises the following steps: 1, testing a wellhead; 2, obtaining near-bit posture data, and designing a well track; 3, issuing a command; 4, conducting intelligent closed-loop control. By means of the rotary steering well drilling control system and the control method thereof, the automatic, intelligent and efficient well drilling can be achieved, and the ideal control effect is obtained.

Description

technical field [0001] The invention belongs to the field of petroleum exploration and development, and in particular relates to a rotary steerable drilling control system and a control method thereof. Background technique [0002] Rotary steerable drilling technology originated in the late 1980s. This technology was developed on the basis of sliding steerable drilling technology and technology to meet the actual needs of the petroleum industry with the improvement of related technology. The basic idea is to apply a certain continuous force to the rotating drill string in a specific direction through a specific downhole steering tool in the vicinity of the drill bit while rotating the well, with the cooperation of the drilling speed and the pump volume. The variable lateral force artificially changes the direction of the drill bit, and then achieves the purpose of geometric steering or geosteering during rotation. [0003] Compared with traditional drilling technology, rota...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/04E21B44/00E21B47/022E21B47/07
Inventor 谭勇欧江波王停孙勇邢双进尹爱静张瑜陈伟陈艳
Owner CHONGQING QIANWEI SCI & TECH GRP
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