Electric breakover device and using method
A technology of electrical conduction and electrodes, which is applied in the field of oil and gas exploration, can solve the problems of inability to efficiently communicate with measuring instruments while drilling and non-magnetic drill collars, and achieve the effect of convenient connection
Pending Publication Date: 2018-06-29
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology
[0005] The embodiment of the present application provides an electrical conduction device and a method of use to solve the technical problem stored in the existing equipment that cannot efficiently and conveniently conduct the measuring instrument while drilling and the non-magnetic drill collar, and achieve a high-efficiency , The technical effect of conveniently connecting the measurement-while-drilling instrument and the non-magnetic drill collar to transmit the measurement data to the ground equipment in real time through the non-magnetic drill collar
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[0029] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0030] Considering that there is no electrical conduction device in the prior art that is specially used for conducting the measurement-while-drilling instrument and the non-magnetic drill collar, it is often impossible to conduct the measurement-while-drilling instrument and the non-magnetic drill collar efficiently and conveniently . A...
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The embodiment of the invention provides an electric breakover device and a using method. The device is used for transmitting an electric signal between a while-drilling measuring instrument and a non-magnetic drill collar and comprises a guiding shaft, an elastic piece and limiting parts. The two ends, in the longitudinal direction, of the guiding shaft are provided with the limiting parts correspondingly, the length of the elastic piece is larger than that of the guiding shaft, and the two ends of the elastic piece are inserted into the limiting parts at the two ends of the guiding shaft correspondingly to form radial expansion. The elastic piece is made of a conducting material. When the device is specifically used, the elastic piece is connected with the limiting parts, and thus the limiting parts are connected with electrodes of the while-drilling measuring instrument; and when the device is put into a well, the radially-expanded elastic piece makes contact with the non-magnetic drill collar to be electrically connected with the non-magnetic drill collar, thus measuring data collected by the while-drilling measuring instrument can be transmitted to the non-magnetic drill collar through contact between the elastic piece and the non-magnetic drill collar, and the technical problem that breakover cannot be efficiently and conveniently achieved between the while-drilling measuring instrument and the non-magnetic drill collar is solved accordingly.
Description
technical field [0001] The present application relates to the technical field of oil and gas exploration, in particular to an electrical conduction device and a method of use. Background technique [0002] In the process of well logging exploration, it is often necessary to collect downhole measurement data during the drilling process through the measurement while drilling instrument, and send the collected measurement data to the ground equipment in time for corresponding processing and analysis and use. [0003] At present, in order to realize the measurement data transmission between the measurement-while-drilling instrument and the ground equipment, cables are usually used to connect the measurement-while-drilling instrument and the ground equipment. However, the cost of running the cables is relatively high, and the process of running the cables and recovering the cables is relatively cumbersome. Therefore, it is hoped to reduce costs, improve efficiency, and effectiv...
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Login to View More IPC IPC(8): E21B47/12
CPCE21B47/12
Inventor 王刚马文杰李万军王磊罗怀东闫军段德祥罗慧洪王岩峰王俊峰顾亦新景宁吉飞吴羽珩张华北童振林云涛
Owner BC P INC CHINA NAT PETROLEUM CORP