High-temperature packer rubber cylinder contact pressure scheme design device

Abstract

The invention discloses a high-temperature packer rubber cylinder contact pressure scheme design device. The high-temperature packer rubber cylinder contact pressure scheme design device is mainly composed of a motor, a coupling, a primary cylindrical gear reducer, a screw, a pressure sensor, a temperature sensor, a heating furnace, a strain gauge, a spiral duct, a nut, a claw clutch, a computer,a casing pipe, a hydraulic pump, an oil cylinder, a sleeve, a frame and a rubber cylinder; and the motor, the coupling, the primary cylindrical gear reducer, the claw clutch and the matched screw andnut constitute a pressurizing system, the electric heating furnace, the rubber cylinder, the casing pipe and the spiral duct constitute a heating system, and the pressure sensor, the temperature sensor, the strain gauge and the computer constitute a measurement and control system. According to the high-temperature packer rubber cylinder contact pressure scheme design device, the contact pressure between the rubber cylinder and the casing pipe is obtained through a method of pasting the strain gauge to the outer wall of the casing pipe, so that stress data is less disturbed by external factors,and the result is more accurate; and collecting modes of contact pressure data of the rubber cylinder in a high-temperature environment are enriched.

Description

technical field [0001] The invention relates to a device for designing a contact pressure scheme of a high-temperature packer rubber cylinder, which belongs to the technical field of downhole tools or the field of petroleum machinery in the oil and gas exploitation industry. Background technique [0002] As an important downhole tool often used in the petroleum industry, the packer is mainly used in staged and layered mining, fracturing, water injection, water shutoff and other processes. The packer mainly relies on elastic sealing elements (packer rubber barrel) to seal The annulus isolates the production layer to achieve the purpose of various construction techniques. The quality of its sealing performance directly affects the use efficiency of the packer, and affects the mining cost and the benefit of the enterprise. In recent years, with the continuous development of oil and gas resources, the oil and gas wells that have been exploited are almost exhausted. In order to o...

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Problems solved by technology

Therefore, many scholars at home and abroad have done a lot of theoretical and simulation research on the structure and materials of the packer rubber cylinder, but relatively little experimental verification has been done, especially the experimental verification of the packer under high temperature conditions. up

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