Petroleum drilling underground vibration power generating method and device
A technology of vibration power generation and oil drilling, which is applied in the direction of circuit devices, battery circuit devices, generators/motors, etc., can solve the problems of short power supply time, limited battery capacity, limited data volume, etc., and achieve the effect of facilitating energy supply
Inactive Publication Date: 2013-04-10
SOUTHWEST PETROLEUM UNIV
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Problems solved by technology
However, during the drilling process, the downhole is limited by high temperature, high pressure and small space, the battery capacity is limited, and the power supply time is not long, so that the amount of data recorded each time the equipment goes downhole is limited, which cannot well meet the needs of data analysis.
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[0012] The implementation method of the device applied to power generation in oil drilling is as follows: a short-circuit 10 is installed between the downhole drill pipe and the drill bit, and a vibration cavity 30, a battery box 31 and an instrument box 40 are established by slotting on the inner wall of the short-circuit 10; the vibration cavity 30 Including longitudinal vibration chamber 33, transverse vibration chamber 34, piezoelectric ceramic sheet 35, percussion hammer 36, partition 37 and spring sheet 38; partition 37 divides longitudinal vibration chamber 33 and lateral vibration chamber 34 into eight groups of small cells , in each cell, a piezoelectric ceramic sheet 35 for collecting vibration power generation, a hammer 36 for converting vibration energy into knock energy and a spring leaf 38 for supporting the hammer 36 are housed; the spring leaf 38 The piezoelectric ceramic sheets 35 in the longitudinal vibration chamber 33 are distributed on the upper and lower s...
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The invention relates to a petroleum drilling underground vibration power generating device. The petroleum drilling underground vibration power generating device is characterized in that a vibrating cavity, a cell box and an instrument box are slotted on the short-connected inner wall connected with a drilling rod; the vibrating cavity comprises a plurality of longitudinal vibrating cavities and transverse vibrating cavities; the inner walls of all vibrating cavities are distributed with piezoelectric ceramic wafers for converting vibrating energy transferred from a knocking hammer into electric energy; the piezoelectric ceramic wafers store the generated electric energy into a cell assembly for being used by an underground instrument; and the knocking hammer stably and enduringly works under the support of a spring piece. The invention has the advantages of directly utilizing underground vibrating energy for generating power without providing the electric energy by the ground, having small device size, and being convenient installation and processing. The invention is suitable for the power generation of vibrating energy in the petroleum drilling project.
Description
technical field [0001] The invention relates to a technology for generating electricity by utilizing the vibration energy of drill rods during oil and natural gas drilling. Background technique [0002] In order to understand the changes of downhole parameters during oil and natural gas drilling, a data recording device should be embedded in the downhole drill pipe to collect and record downhole parameters for further analysis. Currently, batteries are usually used to supply power to downhole equipment. However, during the drilling process, the downhole is limited by high temperature, high pressure and small space. The battery capacity is limited and the power supply time is not long. As a result, the amount of data recorded each time the equipment goes downhole is limited, which cannot well meet the needs of data analysis. Contents of the invention [0003] The purpose of the present invention is to propose an oil drilling downhole vibration power generation device, whic...
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IPC IPC(8): H02N2/18H02J7/00
Inventor 林元华王其军何龙陈乔李刚吕栋梁彭本虎
Owner SOUTHWEST PETROLEUM UNIV