A glass clamping model and experimental method based on microscopic displacement experiment

Abstract

The invention relates to the field of oil and gas field development, in particular to a glass clamping model and an experimental method based on a microscopic displacement experiment. It includes a transparent silicone sleeve, a piston, a piston cap, a frame, a connecting plate, a screw compression bracket, a card frame, a glass piece as a whole, a boss, a light source and a microscope; the glass piece is placed in a transparent silicone sleeve, and the transparent silicone sleeve has a horizontal Through the hole, the transparent silicone sleeve is set on the piston cap, the piston cap is set on the frame, the piston runs through the horizontal through hole, the connection plate and the card frame are respectively connected at both ends of the frame, and the end of the screw compression bracket is clamped on the frame and the connection plate Between them, the piston, the frame and the card frame are connected, the two ends of the piston located on one side of the card frame are respectively provided with an emptying channel and an inlet channel, and the end of the piston located on one side of the connecting plate is provided with an outlet channel. The invention can more accurately control the change of the pore size of the pore system, has good light transmission, can more accurately simulate the fluid flow environment in the formation, and increases the clarity of observation.

Description

A glass clamping model and experimental method based on microscopic displacement experiment technical field The present invention relates to the field of oil and gas field development, in particular to a glass clamping model based on microscopic displacement experiments and a experimental method. Background technique At present, the physical model used for carrying out microscopic displacement experiments in the research oil and gas field development process mainly includes: 1. bead clamping model, with two sheets of glass or plexiglass densely sandwiching a layer of well-sorted glass microbeads to make Layered porous media model; however, it is not easy to precisely control the variation of the pore size of the pore system. 2. capillary network model, etch capillary network on glass plate, make two-dimensional transparent model; But do not have Some morphological distribution characteristics of three-dimensional pore systems, especially the characteristics of pore...

AI Technical Summary

Problems solved by technology

[0003] ①Bead sandwich model, a layer of well-sorted glass beads is densely sandwiched between two pieces of glass or plexiglass to make a layered porous medium model; but it is not easy to accurately control the change of the pore system channel size

[0005] ③The pore network model, using photolithography on glass, or using photoimaging and chemical corrosion on nylon to make the pattern of the porous medium pore system, to make a two-dimensional transparent model; but whether it is made of glass or nylon , it is difficult to simulate the complex properties of the real core and mineral composition and the inner surface of the channel

[0006] ④ For the sandstone pore model, the actual core is washed with oil, cut into slices, and then sandwiched between two optical glass plates to make a model of the pore structure of the real oil layer; but the light transmission is not good, resulting in the state of some flow fields display is not clear

[0007] In summary, the current physical models used in microscopic displacement experiments cannot meet people's research needs in the process of oil and gas field development.

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