Device and method for establishing double-porosity carbonate reservoir physical model

Abstract

The invention relates to a device and a method for establishing a double-porosity carbonate reservoir physical model. The device comprises a rock sample interior structure scanning system, a data processing and display system, a 3D (three-dimensional) rapid prototyping printer and thermal drying equipment, wherein the rock sample interior structure scanning system is a basic data acquisition module in the device for manufacturing the double-porosity carbonate reservoir physical model and can reproduce interior structure characteristics of a carbonate reservoir in a lossless and true manner; the data processing and display system is used for receiving and storing 2D (two-dimensional) slice image data, which are obtained by the rock sample interior structure scanning system, of a to-be-detected rock sample; the 3D rapid prototyping printer is connected with the data processing and display system and used for realizing establishment of the physical model of the rock sample adopting a double-porosity structure; and the thermal drying equipment is used for heating the physical model manufactured by the 3D rapid prototyping printer so as to finish establishment of the physical model. According to the device and the method, the defect that framework properties and the true rock sample differ a lot in traditional establishment methods is overcome.

Description

technical field [0001] The invention belongs to the field of petroleum and natural gas exploitation, and in particular relates to a device and method for preparing a physical model of a carbonate rock reservoir with double pores, aimed at characterizing the pore structure of porous media (rocks) where fluids such as underground crude oil, natural gas, and groundwater are located and real physical model reconstruction. Background technique [0002] The types of storage spaces in carbonate reservoirs include pores, dissolved pores and even dissolved caves. The pore size of the reservoirs ranges from microns to meters. The reservoirs are loose and difficult to form. Considering factors such as drilling risks and poor core formability in reservoir sections, The difficulty of drilling natural cores with dual pore types limits the physical modeling of carbonate reservoirs. [0003] The basic and core issue of physical experiment simulation is how to prepare artificial physical mo...

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Problems solved by technology

[0005] In order to overcome the shortcomings in the prior art that it is difficult to obtain carbonate rock reservoir cores and the traditional physical model preparation method cannot make a carbonate rock physical model with double porosity, the present invention provides a method for preparing carbonate rock with double porosity The device and method of reservoir physical model provide a new direction for the preparation of physical models in conventional oil and gas, groundwater, natural hydrate and geothermal fields

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