A simulation test device and method for underground electromagnetic wireless transmission system
A technology of wireless transmission and system simulation, applied in the field of oil and natural gas exploration and testing, it can solve the problems of complex working conditions and difficult operation, and achieve the effect of facilitating operation and improving the efficiency of simulation testing.
Active Publication Date: 2022-05-24
ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP +2
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[0002] At present, with the continuous expansion of the scope of offshore oil and gas testing and the improvement of timeliness requirements, the working conditions are becoming more and more complicated, and the operation is becoming more and more difficult
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[0040] The present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0041] The invention provides a simulation test device for a downhole electromagnetic wireless transmission system, which is mainly composed of casing, drill pipe, packer, steel pipe cable, casing resistivity simulation subsection, drill pipe resistivity simulation subsection and wireless electromagnetic transmission. System Components. In this system, relevant simulation tests of different casing environments, different drill pipe environments, and different well fluid environments can be realized; and the running status and data of the system can be monitored through the steel pipe cable passing through the casing.
[0042] like figure 1 As shown, in the simulation test device of the underground electromagnetic wireless transmission system, the electronic sub-section of the ...
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The invention discloses a simulation test device for a downhole electromagnetic wireless transmission system, comprising: a first drill pipe; a wireless transmitting device, which is installed on the first drill pipe; and a first casing, which is axially sleeved on the first drill pipe On the drill pipe; wherein one end of the first drill pipe extends to the outside of one end of the first casing; the second drill pipe is arranged at intervals from the first drill pipe; the wireless receiving device is installed on the second drill pipe; Two casings, which are sleeved on the second casing along the axial direction; wherein, one end of the second drill pipe extends to the outside of one end of the second casing; a cabled remote transmission device is installed on the second drill pipe; a computer , which is connected to a cable remote transmission device through a cable; the drill pipe resistivity simulation short junction, one end of which is connected to the first drill pipe, and the other end is connected to the second drill pipe; the casing resistivity simulation short junction, one end of which is connected to the first casing , and the other end is connected to the second bushing; one end of a plurality of grounding wires is respectively connected to different positions of the bushing resistivity simulation short junction, and the other end is grounded.
Description
technical field [0001] The invention belongs to the technical field of oil and natural gas exploration and testing, and in particular relates to a simulation test device and method for a downhole electromagnetic wireless transmission system. Background technique [0002] At present, with the continuous expansion of the scope of offshore oil and gas testing and the improvement of aging requirements, the working conditions are becoming more and more complex, and the operation is becoming more and more difficult. Therefore, the data transmission system based on electromagnetic wireless technology is an inevitable trend in the development of formation testing. Therefore, how to simulate and test the system to maximize the establishment of the actual well condition environment and related testing methods is to improve the research and operation of the electromagnetic wireless transmission system. The inevitable requirement of the success rate of well drilling. SUMMARY OF THE IN...
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IPC IPC(8): H04B17/00H04B17/391H04W24/06
CPCH04B17/3912H04B17/0087H04W24/06
Inventor孟文波黄熠刘书杰颜帮川魏剑飞任冠龙王乐张崇董钊蒋东雷苏剑波徐斐
OwnerZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP