A reciprocating pipe diameter self-adaptive downhole power generation device
A power generation device, reciprocating technology, applied in the direction of electromechanical devices, electric components, electrical components, etc., to achieve the effects of stable mechanical structure, low operating cost, and strong applicability
Active Publication Date: 2020-08-25
NORTHEAST GASOLINEEUM UNIV
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Problems solved by technology
But, also do not have a kind of downhole power generation device that can effectively carry out self-generated electricity downhole now
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[0053] The present invention will be further described below in conjunction with accompanying drawing:
[0054] In order to overcome the problem that the downhole working condition signal cannot be obtained in real time due to the narrow space in the wellbore in the injection and production process of the same well, the present invention designs a reciprocating pipe diameter self-adapting downhole power generation device.
[0055] The purpose of this kind of downhole power generation device is to convert mechanical energy into electrical energy through the change of downhole fluid medium flow rate and the reciprocating motion of its own structure, so as to realize cable-free power supply for downhole power-demanding equipment in the narrow space in the downhole wellbore, and ensure the effective operation of various downhole sensors. It provides electric energy guarantee for the high-precision and high-efficiency implementation of downhole oil-water separation and same-well inj...
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A reciprocating pipe diameter self-adaptive downhole power generation device. Including pipe diameter adapting device, upper and lower concentric brackets, forward and reverse generator boxes and rack type transmission rod; pipe diameter adapting device includes reducing connecting rod, reducing rod, fancy reducing top seat, reducing plate group, Variable diameter pulley, variable diameter adjusting slider and fancy variable diameter base; the pipe diameter adaptation device fits with the inner wall of the power generation outer cylinder to realize the movement of the pipe diameter adaptation device along the inner wall of the power generation outer cylinder under the impact of the liquid flow; the upper concentric bracket and The outer diameter of the lower concentric support is the same as the inner diameter of the power generation outer cylinder, and it is fixed inside the power generation outer cylinder; the power generation outer cylinder is equipped with a groove shape and is connected to the fixed base of the reverse generator box and the fixed base of the forward generator box; rack-type transmission rod The upper end is connected with the pipe diameter adapting device, and meshes with the gears of the forward generating box and the reverse generating box between the upper concentric bracket and the lower concentric bracket. The conversion of fluid kinetic energy-mechanical energy-electric energy can be realized by means of the change of downhole fluid flow, without the need for downhole cable transmission.
Description
technical field [0001] The invention relates to an underground power generation device. Background technique [0002] With the continuous development of oilfields, the water content of oilfield produced fluids increases year by year, and the pressure of surface produced fluid separation and oily sewage separation, gathering, transportation and treatment gradually increases. In order to solve the above problems, downhole oil-water separation and same-well reinjection technologies have been proposed, and after years of research and development, they have been gradually put into production and use. However, in the application process of injection and production in the same well, it was found that in order to ensure the high-precision operation of the downhole oil-water separation equipment, it is necessary to obtain the downhole flow, pressure and temperature and other working condition parameters in time. Restricted use. The current methods mainly include cable transmission ...
Claims
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IPC IPC(8): F03B13/00H02K7/18
CPCF03B13/00H02K7/1807
Inventor 邢雷蒋明虎赵立新李枫张勇高金明
Owner NORTHEAST GASOLINEEUM UNIV