Rotary steering tool controlling method

A control method and tool technology, which is applied to the automatic control system of drilling, directional drilling, earthwork drilling and production, etc., to reduce the downlink instruction and bit error rate, improve the operation efficiency and the control accuracy of the well track, and improve the directional drilling operation Effects of Efficiency and Borehole Trajectory Control Accuracy

Active Publication Date: 2015-03-25
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the drill-pointing rotary steerable tool is still blank in China.

Method used

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  • Rotary steering tool controlling method
  • Rotary steering tool controlling method

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Embodiment Construction

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the guiding tools and guiding systems used in this embodiment are exemplary, and the specific technical means adopted in the control method are also exemplary, and the present invention should not be limited only to the following specific implementation methods, In any case, the described embodiments are merely exemplary in order to explain the present invention more clearly.

[0035] figure 1 It is a schematic diagram of the rotary steerable system adopted in the specific embodiment of the present invention.

[0036] The rotary steerable system of the present invention is composed of a ground monitoring subsystem, a two-way communication subsystem and an underground steering subsystem, such as figure 1 As shown, the downhole basic configuration of the rotary steerable system of the present invention includes: in...

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Abstract

The invention discloses a rotary steering tool controlling method which can be used for determining the control mode and steering parameters of a steering tool, achieving automatic control over a hole trajectory, improving the working efficiency of the steering tool, and meeting the requirement of directional drilling for steering control. The method comprises the steps of acquiring surveying data and monitoring the trajectory. By the adoption of the method, steerable drilling efficiency is improved, hole trajectory control precision is improved, and the requirement of extended-reach well drilling, complicated geology structure horizontal well drilling and geosteering drilling for trajectory control can be met.

Description

technical field [0001] The invention relates to a control method of a directional drilling steering tool, in particular to a control method of a rotary steering tool. Background technique [0002] In the prior art, the rotary steerable tool realizes the steering control of the wellbore trajectory under the rotating state of the drill string, which overcomes the defects of excessive friction, debris deposition and small limit displacement in the sliding steerable operation, and can greatly improve the wellbore. Quality, drilling efficiency and drilling safety, so it is widely used in the steering construction operations of extended reach wells, horizontal wells and three-dimensional complex structure wells, and is one of the typical advanced drilling equipment today. [0003] At present, rotary steerable tools can be divided into two basic types according to the guiding method: the drill bit pushing type and the bit pointing type, and according to the power transmission struc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/06E21B47/022E21B44/00
CPCE21B7/04E21B44/00E21B47/022
Inventor 唐雪平窦修荣彭烈新禹德洲陈文艺张连成曹冲魏志刚弓志谦李林石荣洪迪峰
Owner BC P INC CHINA NAT PETROLEUM CORP
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