Electromagnetic-wave two-way-transmission rotary guiding system
A rotary steerable, two-way transmission technology, applied in the field of oil drilling, can solve problems such as providing reliable basis for difficult construction, small amount of data transmission information, failures, etc., to achieve accurate and smooth wellbore trajectory, save development costs, and eliminate delays Effect
Inactive Publication Date: 2015-12-09
BETTER OILFIELD TECH
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Problems solved by technology
It cannot be used in air drilling, drilling in wells that encounter easy leakage formations, poor mud performance, etc., and often fails during normal use, causing a single direct economic loss of 40,000 to 50,000 yuan, which is not conducive to work. High-quality and efficient development
At the same time, due t...
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[0019] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0020] see figure 1 As shown, the electromagnetic wave two-way transmission rotary steerable system of the present invention is characterized in that it includes a ground control system and an underground control system; the ground control system is used to set the drilling trajectory, issue drilling command signals, and receive and analyze downhole drilling feedback signals. ; The downhole control system is used to receive and analyze the drilling command signal, control the drilling trajectory in combination with the positioning information, and send the drilling information feedback signal to the ground.
[0021] The ground control system includes a computer cont...
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The invention discloses an electromagnetic-wave two-way-transmission rotary guiding system. The electromagnetic-wave two-way-transmission rotary guiding system comprises a ground control system and an underground control system. The ground control system comprises a computer control system, an electromagnetic wave pulse excitation device and an electromagnetic wave signal receiving and analyzing device, wherein the electromagnetic wave pulse excitation device and the electromagnetic wave signal receiving and analyzing device are connected with the computer control system. The underground control system comprises a tool control and data processing system, an electromagnetic wave signal detecting, analyzing and transmitting device, a fixed point static data measuring device and a rotary guiding motion control mechanism, wherein the electromagnetic wave signal detecting, analyzing and transmitting device, the fixed point static data measuring device and the rotary guiding motion control mechanism are connected with the tool control and data processing system. The ground control system is in communication with the electromagnetic wave signal detecting, analyzing and transmitting device of the underground control system through the electromagnetic wave pulse excitation device and the electromagnetic wave signal receiving and analyzing device. According to the electromagnetic-wave two-way-transmission rotary guiding system, the two-way electromagnetic wave transmitting technology is combined with the rotary guiding motion mechanism, an electromagnetic wave signal source is positioned through electromagnetic waves, guiding drilling is carried out on continuous points, and while-drilling measured data collecting and automatic guiding drilling are achieved.
Description
technical field [0001] The invention relates to oil drilling, in particular to an electromagnetic wave two-way transmission rotary steering system. Background technique [0002] Rotary steerable drilling system is also called closed-loop rotary steerable drilling system. This system is a cutting-edge automatic drilling technology. It is mainly composed of measurement and control mechanism, bias mechanism and actuator. It can automatically complete rotary steerable fixed-point drilling underground. The directional function, with the characteristics of sliding and rotating, can control the wellbore trajectory more accurately, and the formed wellbore is smoother than the wellbore drilled by the conventional downhole motor-steering drilling tool assembly, which can effectively reduce the frictional torque and the downhole The occurrence of complex situations improves the drilling ability. [0003] At present, there are many different types of rotary steerable tools in the world...
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Inventor 陈洋郑军王鲸龙
Owner BETTER OILFIELD TECH
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