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Apparatus and method for measuring throttling effect coefficient of high-pressure complex fluid

An effect, high-pressure technology, applied in the field of devices for measuring the throttling effect coefficient of high-pressure complex fluids, which can solve the problems of difficulty in experimental measurement and increased difficulty

Inactive Publication Date: 2016-05-04
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, because it involves many factors such as pre-valve pressure, post-valve pressure, pre-valve temperature, post-valve temperature, gas-liquid ratio, water content, gas composition, etc., the experimental measurement is very difficult.
and CO 2 The flooding fluid is usually under high pressure, which increases the difficulty of experimental measurement

Method used

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  • Apparatus and method for measuring throttling effect coefficient of high-pressure complex fluid
  • Apparatus and method for measuring throttling effect coefficient of high-pressure complex fluid
  • Apparatus and method for measuring throttling effect coefficient of high-pressure complex fluid

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Embodiment Construction

[0036] The present invention is described in detail below in conjunction with accompanying drawing:

[0037] Such as figure 1 , figure 2 As shown, a device for measuring the throttling effect coefficient of high-pressure complex fluids can simulate the wellhead throttling conditions of oil and gas fields in the laboratory and measure CO 2 The temperature drop before and after the throttle valve during the wellhead throttling process of the fluid produced in the oil displacement well. The device includes an experimental loop about 20m long, with a pipe inner diameter of 26mm and a pressure bearing capacity of 10MPa. It is made of corrosion-resistant 316L stainless steel and can withstand CO 2 corrosion. The experimental device is mainly divided into six parts: gas phase system, oil-water system, mixing system, throttling and observation system, separation system, and temperature control system; details are as follows:

[0038] The mixing system includes a gas-liquid mixer ...

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Abstract

The invention discloses an apparatus and method for measuring a throttling and temperature drop effect coefficient of high-pressure complex fluid. The apparatus comprises an oil-water system and a gas phase system; the temperature of oil-water in the oil-water system is adjusted by a temperature control system and the oil-water is sent to a mixing system, and at the same time gas is mixed by the gas phase system and sent to the mixing system; the mixing system mixes the oil-water and the gas, and sends the mixed fluid to a gas-liquid separation system through a mixed transportation pipeline, and a throttling and observing system is arranged on the mixed transportation pipeline; the gas-liquid separation system sends oil-water after gas-liquid separation back to the oil-water system for the next cycle.

Description

technical field [0001] The invention discloses a device and a method for measuring the throttling effect coefficient of a high-pressure complex fluid. Background technique [0002] CO 2 enhanced oil recovery (CO 2 -EOR), as an important secondary development technology for old oilfields, has been promoted and used in some blocks of Daqing Oilfield, ensuring the production efficiency and economic benefits of old oilfields. The oil field wellhead gathering and transportation pipeline is usually equipped with a throttle valve to control the oil well head pressure and oil well production. Due to the large amount of CO contained in the produced fluid 2 Gas, the Joule-Thompson effect occurs during the throttling process, resulting in a large temperature drop, and it is easy to generate hydrates in the pipe section after throttling to block the pipeline, causing safety accidents. Therefore, the need for CO 2 -Experimental research on the throttling temperature drop effect of t...

Claims

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Application Information

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IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 滕霖李玉星王武昌张大同叶晓李万莉李顺丽
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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