Measurement-while-drilling instrument power supply management device
A technology of power supply management and instrument while drilling, applied in circuit devices, battery circuit devices, instruments, etc., can solve the problem of high requirements for battery power supply optimization management, and achieve the effects of optimizing power supply efficiency, extending power supply duration, and optimizing power supply control.
Active Publication Date: 2018-02-16
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
Moreover, it is difficult to replace the battery pack at the drilling site, so the requirements for optimal management of the power supply of the battery pack are higher
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[0038] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.
[0039] Also, in the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without the specific details or in the particular manner described.
[0040] After the battery pack of the near-drill ins...
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The invention discloses a measurement-while-drilling instrument power supply management device. The measurement-while-drilling instrument power supply management device comprises a clock circuit, a battery pack voltage measuring circuit, a battery pack current measuring circuit, a control circuit and a battery pack activating circuit, wherein the clock circuit is used for providing a clock signal;the battery pack voltage measuring circuit is connected with a battery pack, and is used for measuring the voltage of the battery pack so as to obtain measured voltage data; the battery pack currentmeasuring circuit is connected with the battery pack, and is used for measuring the current of the battery pack to obtain measured current data; the control circuit is connected with the clock circuit, the battery pack voltage measuring circuit and the battery pack current measuring circuit, and is used for generating a battery pack activating signal according to the clock signal, the measured voltage data and the measured current data; and the battery pack activating circuit is connected between the positive pole and the negative pole of the battery pack, and is used for carrying out activation treatment on the battery pack according to the battery pack activating signal. According to the device, the battery pack power supply efficiency of a measurement-while-drilling instrument (particularly a near-bit instrument) can be sufficiently optimized, and a passivation phenomenon appearing since the battery pack is not used for long time can also be avoided.
Description
technical field [0001] The invention relates to the technical field of oil and gas exploration and development, in particular to a power supply management device for an instrument while drilling. Background technique [0002] With the continuous development of oil and natural gas, the development of early conventional oil and gas reservoirs has come to an end, and now it has developed into the development of unconventional oil and gas reservoirs and complex oil and gas reservoirs, from shallow to deep. The construction of directional wells is more and more common in these unconventional oil and gas reservoirs and complex oil and gas reservoirs. [0003] With the continuous development of modern electronic measurement technology, near-bit instruments can measure engineering parameters such as well deviation and azimuth at the drill bit in real time during drilling, and geological parameters such as resistivity and gamma. Due to its special structure, the near-bit instrument,...
Claims
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IPC IPC(8): H02J7/00G01R31/36
CPCG01R31/3842G01R31/396H02J2007/0067H02J7/0063
Inventor 倪卫宁陆黄生张卫王卫李继博安生
Owner CHINA PETROLEUM & CHEM CORP