Downhole packer hydraulic test system device
A hydraulic test and system device technology, which is applied in fluid pressure actuation devices, fluid pressure actuation system tests, mechanical equipment, etc., can solve the problems of high cost, large energy consumption, and slow pressure, and achieve fast speed and energy consumption. The effect of low pressure and wide range of pressure measurement
Inactive Publication Date: 2017-05-10
SHANGHAI UNIV
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Problems solved by technology
Most of the existing packer testing devices consume a lot of energy, slow pressure and high cost
Method used
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Embodiment 1
[0015] Embodiment one: if Figure 1 to Figure 4 As shown, the downhole packer hydraulic testing system device includes a pressure stabilizing circuit, a boosting circuit, and a reversing circuit. A downhole packer hydraulic system device, comprising a voltage stabilizing circuit, a pressurizing circuit, and a reversing circuit, characterized in that: the stabilizing circuit is connected to the reversing circuit through a boosting circuit;
[0016] The pressure stabilizing circuit includes an oil tank with exhaust function, two parallel low-pressure small-displacement quantitative pumps driven by a motor, a check valve, a pilot-operated overflow valve, a two-position two-way solenoid valve and a pilot-operated proportional overflow valve; the inlets of the two low-pressure small-displacement quantitative pumps are connected to the fuel tank; the outlets are connected to a three-position four-way solenoid valve in the booster circuit, and are connected to the fuel tank through t...
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The invention discloses a hydraulic device which can carry out a pressure test on a packer on a well. The device comprises a pressure stabilizing loop, a pressure boosting loop and a reversing loop. The pressure stabilizing loop is connected with the reversing loop through the pressure boosting loop. The pressure stabilizing loop comprises an oil tank with an exhaust function, two low-pressure small-displacement fixed-displacement pumps connected in parallel and driven by a motor, a check valve, a pilot operated compound relief valve, a two-position two-way solenoid valve and a pilot operated type proportional overflow valve. The pressure boosting loop comprises a three-position four-way solenoid valve, two position sensors, a bidirectional pressure cylinder, four high-pressure check valves, a flowmeter, a pressure gauge and a pilot operated compound relief valve. The reversing loop comprises three two-position three-way solenoid valves, a pressure testing casing pipe, a packer center pipe, a packer sealing piece, three check valves, a deflation valve and a two-position two-way solenoid valve. The device can simulate the down-hole high-pressure environment, and detect the sealing performance of the packer.
Description
technical field [0001] The invention relates to a high-pressure sealing test device for downhole petroleum packers. Background technique [0002] The main function of the packer in oil production is to isolate the production layer, separate the water injection, etc. Its sealing performance plays a key role in the performance of the packer, and the rubber sleeve is the core component of the sealing process, and often occurs after the rubber sleeve is compressed. The shoulder is raised, which reduces the contact stress between the rubber cartridge and the casing, which has a great influence on the sealing performance of the packer. In order to ensure the reliable tightness of the packer, the present invention designs a set of hydraulic devices to carry out pressure testing on the packer in the well. The device can simulate the high-pressure environment in the downhole to detect the tightness of the packer. Most of the existing packer testing devices consume a lot of energy, a...
Claims
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IPC IPC(8): F15B19/00
CPCF15B19/00
Inventor 赵岩陆利新李政陈荣莲
Owner SHANGHAI UNIV