Downhole wireless charging mechanism
A technology of wireless charging and mechanical devices, which is applied to circuit devices, battery circuit devices, current collectors, etc., can solve the problems of underground rechargeable batteries such as wireless charging difficulties, and achieve the effects of avoiding battery replacement operations, simple operation, and improving efficiency
Active Publication Date: 2016-12-21
PETROCHINA CO LTD
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Problems solved by technology
However, it is more difficult to wirelessly charge the underground rechargeable battery; and it is undoubtedly more difficult to realize wireless charging in the wellbore with high pressure and water
Method used
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[0041] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0042] Such as figure 1 As shown, an underground wireless charging mechanical device provided by an embodiment of the present invention includes an independent underground charging nipple device I and a cable-carrying charging device II. When charging, the cable-carrying charging device II is installed in the downhole charging Inside the sub-joint device I, the cable carrying charging device II is coupled with the downhole charging sub-joint device I to complete the charging of the downhole charging sub-joint device I.
[0043] The present invention realizes the downhole wireless charging function through the coupling design of the cable-carried charging device II and the downhole charging nipple device I, and provides electric energy ...
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The invention discloses a downhole wireless charging mechanical device, and belongs to the field of petroleum. The downhole wireless charging mechanical device comprises a downhole charging short section device and a cable carry charging device, wherein the downhole charging short section device and the cable carry charging device are respectively independent. In the charging process, the cable carry charging device is installed inside the downhole charging short section device, the cable carry charging device is coupled to the downhole charging short section device, and then the downhole charging short section device can be charged. By the adoption of the design that the cable carry charging device and the downhole charging short section device are coupled, the downhole wireless charging function is achieved, electric energy is provided for an instrument which is lingered downhole for a long time, test deployment and dynamic monitoring tasks of the downhole instrument are completed, battery replacement operation of the downhole instrument is omitted, and test deployment efficiency is improved. In addition, the downhole wireless charging mechanical device is simple in operation, operation of professional staff is not needed, and the downhole wireless charging mechanical device is convenient to popularize and use on the scene.
Description
technical field [0001] The invention relates to the technical field of oilfield development, in particular to an underground wireless charging mechanical device. Background technique [0002] Oilfield development at home and abroad generally conducts layered water injection and layered oil recovery according to the specific conditions of each oil layer. However, with the continuous increase in the number of separate injection wells and layers, the workload of testing is gradually increasing. Most of the eccentric water distribution measurement and adjustment processes now use steel wire and cable measurement and adjustment. During the measurement and adjustment, the operational risk of eccentric throwing and fishing plugs cannot be avoided, resulting in a large repetitive workload and a long cycle, which cannot fully meet the needs of the site, and the injection volume changes quickly. Fast, the qualified rate of water injection gradually decreases after layered deployment, ...
Claims
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IPC IPC(8): E21B47/00H02J7/00
Inventor 罗必林郭方元巨亚锋于九政王子建胡美艳晏耿成毕福伟
Owner PETROCHINA CO LTD