Apparatus and method for simulating water-rock reaction

A reaction, water-rock technology, applied in measurement devices, suspension and porous material analysis, instruments, etc., can solve the problem of inability to know the internal pores and fluid changes in the core, and achieve a high degree of real-time online monitoring that is convenient for application and promotion. Effect

Active Publication Date: 2018-08-28
CHINA PETROLEUM & CHEM CORP +1
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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

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  • Apparatus and method for simulating water-rock reaction

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

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

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Abstract

The present invention relates to an apparatus for simulating a water-rock reaction, and a method for simulating a water-rock reaction by using the apparatus. The apparatus comprises: a micro CT scanning system; a reaction kettle arranged inside the micro CT scanning system; a fluid injection system connected to the inlet of the reaction kettle; a fluid ion test analysis system connected to the outlet of the reaction kettle; and a data collecting and processing system for collecting the data of the micro CT scanning system and the fluid ion test analysis system. According to the present invention, the apparatus can monitor the dynamic process of the water-rock reaction, can perform real-time in-situ image monitoring on the water-rock reaction, can real-timely monitor the diffusion distribution trend, the saturation distribution and other parameters of the fluid in the pores, and can provide important scientific significance for the monitoring of the reaction progress of the water-rock reaction experiment system and the exploration of the fluid-rock interaction law; and the method can simultaneously complete image and quantitative calculation, has high real-time online monitoring degree, and is convenient for application promotion.

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. Fluid-rock interaction in deep hydrocarbon-bearing carbonate reservoirs is an important factor affecting reservoir performance. Fluid-rock interaction includes two processes of dissolution and precipitation. Dissolution expands pores to improve rock storage performance, and precipitation reduces pores to reduce rock storage performance. As a porous medium, the development scale of the internal pore space, the degree of influence of the spatial distribution on fluid seepage, the interaction mechanism between fluid and rock, and the material changes and energy changes that occur during the interaction process ...

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Application Information

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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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