Apparatus for monitoring fluid phase behavior changes in porous medium

A technology of porous media and phase state change, which is applied in the field of development and oil and gas field exploration to achieve the effect of improving recovery, simple operation, and easy popularization and application

Active Publication Date: 2016-03-30
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to solve all or part of the above problems, the present invention provides a device for monitoring the phase state change of fluid in poro

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  • Apparatus for monitoring fluid phase behavior changes in porous medium

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Example Embodiment

[0022] The present invention will be further described below in conjunction with the drawings.

[0023] figure 1 The device 10 for monitoring the phase change of the fluid in the porous medium according to the present invention is schematically shown. Such as figure 1 As shown, the device 10 includes a generally dumbbell-shaped body 1. The body 1 includes a sealed cavity 2 distributed along the axial direction, which is used to accommodate the porous medium 3. The porous medium 3 is, for example, a cylindrical core sample. The porous media 3 described below all take core samples as examples, but it does not mean that only the core samples are required to be protected. This is just for convenience of description.

[0024] According to the present invention, the body 1 further includes an annular cavity 4 surrounding the sealed cavity 2 and a flexible cylinder 5 arranged between the sealed cavity 2 and the annular cavity 4. The flexible cylinder 5 is preferably a glue cylinder. ...

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Abstract

The present invention relates to an apparatus for monitoring fluid phase behavior changes in a porous medium, the apparatus comprises a body comprising a sealed chamber for accommodating the porous medium, an injection assembly, and an end cover, wherein the injection assembly is used for adding a fluid to be measured into the sealed chamber, and can adjust the pressure of the fluid to be measured in the sealed chamber, the end cover is in sealed connection with both ends or any end of the body, and the end cap is provided with a perspective window for monitoring the phase behavior changes of the fluid to be measured in the sealed chamber. By use of the apparatus for monitoring the fluid phase behavior changes in the porous medium, influence of the porous medium to the fluid phase behavior changes may not be ignored during the study on phase behavior changes of a hydrocarbon fluid.

Description

Technical field [0001] The invention relates to the technical field of oil and gas field exploration and development, in particular to a device for monitoring fluid phase changes in porous media. Background technique [0002] In the field of oil and gas field exploration and development technology, studying the phase state changes of hydrocarbon fluids in porous media is crucial for gas drive oil recovery to improve oil recovery. [0003] At present, the study of phase change of hydrocarbon fluids has formed a relatively complete theory and method. However, the current research on the data of the phase change of hydrocarbon fluids usually comes from multiple sets of PVT (fluid pressure, volume and temperature tests) experiments under different pressures. This kind of PVT experiment is carried out under the condition of ignoring the influence of the porous medium on the phase change of the fluid. Therefore, it can only conduct in-depth research on the physical parameters and phase ...

Claims

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Application Information

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IPC IPC(8): G01N21/84
Inventor 张栋伦增珉吕成远赵淑霞潘伟义王海涛赵春鹏王锐周霞赵清民
Owner CHINA PETROLEUM & CHEM CORP
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