Porous medium fluid seepage simulation system and porous medium fluid seepage simulation method

A technology for porous media and seepage simulation, which is used in measurement devices, suspension and porous material analysis, permeability/surface area analysis, etc. It can solve problems such as complex structures and achieve the effect of simplifying the structure.

Active Publication Date: 2018-06-29
PETROCHINA CO LTD
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Problems solved by technology

However, the structure of the experimental model constructed using isobaric plates etc. is complex

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  • Porous medium fluid seepage simulation system and porous medium fluid seepage simulation method
  • Porous medium fluid seepage simulation system and porous medium fluid seepage simulation method
  • Porous medium fluid seepage simulation system and porous medium fluid seepage simulation method

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Embodiment Construction

[0052] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0053] Those skilled in the art know that the seepage of fluid in porous media conforms to Darcy's law, that is, the seepage volume is proportional to the pressure difference and cross-sectional area, proportional to the permeability of porous media, and proportional to fluid viscosity and seepage heat transfer distance. inverse ratio. I...

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Abstract

The embodiment of the application provides a porous medium fluid seepage simulation system and a porous medium fluid seepage simulation method. The system comprises a sealed thermal insulation container, a heat source, a plurality of temperature sensors, and a data processing device; heat-conducting medium for simulating fluid in porous medium to be simulated fills the sealed thermal insulation container; the heat source is used for supplying heat energy to the heat-conducting medium; the plurality of temperature sensors are used for keeping the constant heat output of the heat source, and when temperature data which are acquired by the plurality of temperature sensors at the same sampling time are in a linear relation, temperature data of the heat-conducting medium at different positionsin the sealed thermal insulation container are acquired; the data processing device is used for determining seepage parameters of the porous medium to be simulated according to the temperature data and a preset similarity proportion coefficient; and the similarity proportion coefficient is a proportion coefficient between heat transfer parameter and similar seepage parameter. The embodiment of theapplication is simple in structure and low in cost.

Description

technical field [0001] The present application relates to the technical field of oil and gas exploration and development, in particular to a porous medium fluid seepage simulation device and method. Background technique [0002] Seepage refers to the flow of fluid in any porous medium. The seepage of fluid in porous media has the following characteristics: the flow resistance is large, the flow velocity is generally slow, and the inertial force of the fluid is often negligible. Moreover, the geometry, topology and other characteristics of the pore structure of porous media often have greater complexity and randomness. Therefore, the study of seepage characteristics in porous media is of great significance for understanding the formation of oil and gas and improving oil and gas recovery. [0003] At present, the fluid seepage simulation in porous media is mostly based on the seepage simulation of the pressure field. In this way, when constructing the model, it is necessary ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/08G01N25/20
CPCG01N15/08G01N25/20
Inventor 甘俊奇王俊文阎逸群张原周杨
Owner PETROCHINA CO LTD
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