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High-build-up-rate high-drilling-speed rotating guide system

A technology of rotary steering and deflection building, which is applied in the field of high drilling rate rotary steerable system and high deflection building, which can solve the problem of unsatisfactory drilling directional operation, low drilling efficiency, and inability to realize rotary steering and sliding steering at the same time, etc. problems, to achieve the effect of improving deflection building ability, wellbore quality and drilling efficiency, and shortening the installation length

Active Publication Date: 2020-02-28
XIAN SHIDA STEERING OILFIELD TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The existing directional drilling technology cannot realize rotary steering and sliding steering at the same time, and the rotary steering head or the downhole power unit are all driven by a single machine. When the single machine is driven, the wellbore quality and drilling efficiency of the directional drilling operation are not high, and cannot meet certain requirements. Requirements for Trip Drilling and Completion

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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] A high-deflection, high-speed drilling rotary steerable system, such as figure 1 As shown, it includes a drill bit 1, a rotary steering head 2, a bottom hole stabilizer 3, a downhole generator nipple 4, a wireless transmission system 5, a downhole dynamic drilling tool 6, MWD and LWD7, and an upper stabilizer 8; the wireless transmission system 5 is set There are 2, drill bit 1, rotary steering head 2, bottom hole stabilizer 3, downhole generator nipple 4, wireless transmission system 5, downhole dynamic drilling tool 6, wireless transmission system 5, MWD and LWD7 and upper stabilizer 8 in ...

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Abstract

The invention relates to a directional drilling technology in the field of oil and gas resources, in particular to a high-build-up-rate high-drilling-speed rotating guide system. The high-build-up-rate high-drilling-speed rotating guide system can adapt to the condition that two guide forms work together, and the requirement that a well is drilled at a time is met on the premise of improving the drilling efficiency and ensuring the quality of a borehole. According to the adopted technical scheme, the high-build-up-rate high-drilling-speed rotating guide system comprises a drill bit, a rotatingguide head, a well bottom stabilizer, an MWD and LWD and an upper stabilizer, the drill bit, the rotating guide head, the well bottom stabilizer, the MWD and LWD and the upper stabilizer are sequentially connected, and the high-build-up-rate high-drilling-speed rotating guide system further comprises a downhole generator short section, wireless transmission systems and a downhole power drilling tool, the two wireless transmission systems are provided and mounted at the two ends of the downhole power drilling tool correspondingly, one wireless transmission system is connected with the MWD andLWD, and the other wireless transmission system is connected with the rotating guide head through the downhole generator short section and the well bottom stabilizer.

Description

technical field [0001] The invention relates to directional drilling technology in the field of oil and gas resources, in particular to a high-deflection-building, high-speed drilling rotary steering system. Background technique [0002] The drilling of directional wells often uses downhole dynamic drilling tools or rotary steerable systems to control the wellbore trajectory. Directional drilling is the process of drilling out the wellbore in a controlled manner to achieve the required well trajectory. This term is mainly used to describe the wellbore The process of deviating from vertical in a desired direction. [0003] There are many reasons to steer a well, including avoiding a collision with another well, penetrating an intended geological target, intersecting another well for rescue operations or following a trajectory required for geosteering, among many other possible reasons. [0004] The steerable drilling tool assembly in the existing directional well drilling te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/06E21B47/12E21B47/13F01D15/10
CPCE21B7/061E21B7/064E21B47/12F01D15/10
Inventor 周静
Owner XIAN SHIDA STEERING OILFIELD TECH CO LTD
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