A device and method for simulating water-rock reaction

A reaction, water-rock technology, applied in the direction of measuring devices, suspension and porous material analysis, instruments, etc., can solve the problem of not being able to know the changes of pores and fluids inside the core, and achieve easy application and promotion, and a high degree of real-time online monitoring Effect

Active Publication Date: 2022-06-17
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

This method is currently mainly used in static processes. The objects of digitization and visualization are core samples before or after transformation. It is impossible to know the changes of pores and fluids inside the core during the transformation process.

Method used

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  • A device and method for simulating water-rock reaction

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Embodiment

[0069] In order to make the present invention easier to understand, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments, which are only for illustrative purposes and do not limit the scope of application of the present invention. The raw materials or components used in the present invention can be obtained through commercial channels or conventional methods unless otherwise specified.

[0070] figure 1 It is a schematic diagram of the device for simulating water-rock reaction adopted in the embodiment of the present invention; such as figure 1 As shown, the reaction device includes: a micro CT scanning system 1, a reaction kettle 2 placed inside the micro CT scanning system, a fluid injection system connected to the inlet of the reaction kettle, and a fluid ion test and analysis system 4 connected to the outlet of the reaction kettle and the data acquisition and processing system 5 for collecting data in ...

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Abstract

The invention relates to a device for simulating water-rock reaction and a method for simulating water-rock reaction using the device. The device includes: a micro-CT scanning system; a reactor placed inside the micro-CT scanning system; a fluid injection system connected to the inlet of the reactor; a fluid ion test and analysis system connected to the outlet of the reactor; and a micro-CT scanning system for collecting And a data acquisition and processing system for data in the fluid ion test and analysis system. The device can monitor the dynamic process of water-rock reaction, realize real-time in-situ image monitoring of water-rock reaction, real-time monitor the diffusion distribution trend of fluid in pores, saturation distribution and other parameters, and is useful for monitoring water-rock reaction experimental system. It is of great scientific significance to explore the law of fluid-rock interaction. In addition, the method of the present invention can simultaneously complete imaging and quantitative calculation, and has a high degree of real-time on-line monitoring, which is convenient for application and popularization.

Description

technical field [0001] The invention belongs to the technical field of water-rock reaction process, and in particular relates to a device and method for simulating water-rock reaction. Background technique [0002] The primary pores of carbonate rocks and the secondary pores formed by dissolution on the surface and during burial are important oil and gas storage spaces. The fluid-rock interaction in deep hydrocarbon-bearing carbonate reservoirs is an important factor affecting the reservoir performance. Fluid-rock interaction includes two processes: dissolution and precipitation. Dissolution expands pores to improve rock storage performance, while precipitation reduces pores and reduces rock storage performance. As a porous medium, the development scale of the internal pore space and the influence of the spatial distribution on the fluid seepage, the interaction mechanism of the fluid and the rock, and the material changes and energy changes during the interaction process, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/08
CPCG01N15/082
Inventor 丁茜何治亮刘全有孟庆强沃玉进樊德华孙宜朴金晓辉张军涛陈霞
Owner CHINA PETROLEUM & CHEM CORP
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