Artificial microscopic simulation physical model and manufacturing method thereof

Abstract

The invention relates to a three-dimensional artificial microscopic simulation physical core model applied to high definition imaging of microscopic oil displacement as well as a manufacturing method of the model. The core is cemented by using real quartz sand, the formation porosity can be highly simulated, and the core is subjected to high definition imaging under a microscope. The manufacturing method comprises the following steps: (1) preparing quartz sand and transparent organic glass plates, wherein opposite angles of one transparent organic glass plate are drilled; (2) uniformly coating the organic glass with an ultraviolet curing adhesive, and spreading quartz sand; (3) curing the organic glass in a gel hardening lamp through the ultraviolet curing adhesive; (4) adhering the organic glass by using a sealant after the curing is finished, thus ensuring the seal; and (5) inlaying a valve at a drilling position of the organic glass, thus ensuring the seal. According to the core and experimental method, a real rock cementing mode in the formation can be highly simulated, the high imaging definition is guaranteed through high transmission of ultraviolet light, and effective technical means is provided for well researching a microscopic oil displacement mechanism.

Description

technical field [0001] The invention relates to an artificial microcosmic simulation physical model with high definition imaging used in the microcosmic oil displacement process and a manufacturing method thereof, which is suitable for exploring various microcosmic oil displacement mechanisms. Background technique [0002] Microscopic model visualization technology is an advanced experimental technology developed in the 1980s. It can not only simulate the pore structure characteristics of real formations, but also enable researchers to directly observe the movement of solids and liquids in porous media, so the microscopic model can be seen The technology is widely used in the study of oil displacement mechanism and displacement efficiency of miscible flooding, polymer flooding and active agent flooding, as well as the mechanism of formation damage. At present, many types of microscopic models have been developed, but there are few reports on microscopic models that can be im...

AI Technical Summary

Problems solved by technology

Existing glass etching models cannot simulate the real void structure of formations; some microscopic models use full-diameter rock cores to grind into very thin slices, clamp them with two pieces of glass, and bond the surroundings of the model slices with rubber. This kind of model is very difficult to cut, and secondly, the pressure bearing capacity is very small, and the fluid is easy to flow along the glass sheet; some microscopic models are made of epoxy resin, which is complicated to make, and the volume is large, and the matrix is ​​opaque. Microscope image clarity is not high

These microscopic models have the problem that they cannot show the real migration of fluid in porous media well during the experiment.

Images