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Packer high temperature high pressure hydraulic continuous pressurization test device

A high-temperature, high-pressure, test device technology, applied in the direction of measuring the increase and decrease rate of the fluid, using the liquid/vacuum degree to measure the liquid tightness, etc., can solve problems such as system complexity, reduce danger, reduce pressure fluctuations, and pressure control accurate effect

Inactive Publication Date: 2014-04-02
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a packer high-temperature, high-pressure hydraulic pressure continuous pressurization test device, which can save test cost and reduce energy, in view of the current problem that there are many pumps and complex systems required for different pressure packer tests. Consumption and equipment quantity, and can meet the high temperature and high pressure pressure test requirements of various packers

Method used

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  • Packer high temperature high pressure hydraulic continuous pressurization test device
  • Packer high temperature high pressure hydraulic continuous pressurization test device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment one: see figure 1 , the packer high temperature and high pressure hydraulic continuous pressurization test device mainly includes cooler 1, quantitative gear pump 2, pressure regulating valve 3, hydraulic cylinder continuous pressurization circuit Ⅰ, pilot ultra-high pressure electro-hydraulic proportional overflow valve 12, Pressure sensor 13, flow sensor 14, high temperature and high pressure test oil well reversing circuit II, characterized in that: the hydraulic cylinder continuous pressurization circuit I is connected in series between the quantitative gear pump 2 and the high temperature and high pressure test oil well reversing circuit II; The pressure regulating valve 3 is an electro-hydraulic proportional relief valve connected in parallel on the hydraulic pipeline between the quantitative gear pump 2 and the hydraulic cylinder continuous pressurization circuit I, and is used to adjust the test pressure of the system; the pilot ultra-high pressure ele...

Embodiment 2

[0017] Embodiment 2: This embodiment is basically the same as Embodiment 1, and the special features are:

[0018] see figure 1 , the packer high temperature and high pressure hydraulic continuous pressurization test device The hydraulic cylinder continuous pressurization circuit I is mainly composed of two ultra-high pressure check valves 4, a three-position four-way electromagnetic reversing valve 5, and a double-acting booster 6. Two limit position limit switches 7, one shuttle valve 8, one pressure sensor 9, two two-position three-way electromagnetic reversing valves 10 and two ultra-high pressure hydraulic control check valves 11 are composed. The oil inlet of the high-pressure check valve 4 is connected to the oil inlet of the continuous pressurization circuit I of the hydraulic cylinder, and the oil outlet is connected to two small piston chambers at the left and right ends of the double-acting supercharger 6. The three-position four-way electromagnetic commutation The...

Embodiment 3

[0019] Embodiment 3: This embodiment is basically the same as Embodiment 1, and the special features are:

[0020] see figure 1 The high temperature and high pressure test oil well reversing circuit II of this packer high temperature and high pressure hydraulic continuous pressurization test device is mainly composed of ultra-high pressure two-position three-way electromagnetic reversing valves 15, 16, 17, high temperature and high pressure test oil wells 18, three super Composed of a high-pressure check valve 19, an automatic exhaust valve 20 and an ultra-high pressure two-position two-way electromagnetic reversing valve 21, the high-temperature and high-pressure test oil well 18 (see figure 2 ) mainly includes annulus heating jacket 22, wellbore 23, tubing 24 and test packer 25; the annulus heating jacket 22 is wrapped outside the wellbore 23, the lower part of the wellbore 23 and tubing 24 is sealed, and the upper part is sealed by sealing head seal; the test packer 25 is...

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Abstract

The invention relates to a packer high temperature high pressure hydraulic continuous pressurization test device. The test device comprises a cooler, a quantitative gear pump, a pressure regulating valve, a hydraulic cylinder continuous pressurization circuit, a pilot type superhigh pressure electro-hydraulic proportional pressure relief valve, a pressure sensor, a flow sensor and a high temperature high pressure test oil well reversing circuit. In the invention, the aim of producing high pressure by low pressure is achieved by adopting the low-cost quantitative gear pump and the hydraulic cylinder continuous pressurization circuit, and a closed-loop pressure control scheme is adopted, thus test accuracy is improved. The packer high temperature high pressure hydraulic continuous pressurization test device provided by the invention can simulate underground high temperature high pressure working condition, and high temperature high pressure performance of a downhole packer is tested, especially leak flow when the downhole spacker is in a high temperature high pressure working condition can be measured.

Description

technical field [0001] The invention relates to a hydraulic continuous pressurization test device for testing the pressure resistance performance of a packer, which belongs to the technical field of petroleum engineering and electromechanical integration. Background technique [0002] Now, with the increase of drilling depth, due to the effect of geothermal gradient and liquid column pressure, the downhole temperature and pressure also increase accordingly. Therefore, the downhole packer failure during the working process may cause various downhole complex situations and accidents, and cause huge economic loss. In order to verify the high-temperature and high-pressure performance of the packer, a high-temperature and high-pressure test equipment that can simulate downhole high-temperature and high-pressure conditions is needed. At present, the existing packer high temperature and high pressure simulation test equipment (such as the packer high temperature performance test s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/26
Inventor 刘树林张宏利缴文会刘吉成周晓君翟宇毅唐友福刘颖慧姜锐红
Owner SHANGHAI UNIV