Two-dimensional heat curing porous medium model for microscopic oil displacement and manufacturing method for model

A technology of porous media and production methods, which is applied in the field of petroleum micro-mechanism research, and can solve problems such as low degree of visualization, high technical requirements, and difficult fluid collection

Inactive Publication Date: 2012-06-13
UNIV OF SCI & TECH BEIJING
View PDF8 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, in order to study the seepage mechanism of fluid in porous media at the microscopic scale, researchers at home and abroad have developed a variety of physical models for simulating porous media, mainly including: Simplified ideal models, such as single-layer glass bead model, microcapillary network model, and quartz sand interlayer model. The pore structure of these models is an ideal design and cannot reflect the complex pore structure in real porous media; The simulated pore structure model is a two-dimensional and three-dimensional glass photolithography model characterized by the use of photolithography technology. This model uses photolithography technology to simulate the pore structure of the core on the glass plane, and the model is transparen

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Two-dimensional heat curing porous medium model for microscopic oil displacement and manufacturing method for model
  • Two-dimensional heat curing porous medium model for microscopic oil displacement and manufacturing method for model
  • Two-dimensional heat curing porous medium model for microscopic oil displacement and manufacturing method for model

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] First of all, yes figure 1 The core shown is pre-treated. The natural core obtained by coring is cut to a thickness of about 1 cm and a bottom diameter of about 3 cm. Encapsulate and protect the core, that is, use turpentine to fully dissolve the rosin, soak the core in the rosin solution, heat the core to fully saturate the core with rosin, and leave it to cool down. As a result, the rosin is saturated in the core pores in a solid form. Played a protective role for the core hole.

[0026] Secondly, use the processed core to make the master 7. The thermosetting resin and curing agent are prepared in a weight ratio of 20:1 to 5:1, and the preferred weight ratio is 10:1. The thermosetting resin is epoxy resin, which can also be other resins in the field. The curing agent is The curing agent material known in the art preferably uses triethanolamine. After the thermosetting resin and the curing agent are prepared, they are cast around the core saturated with rosin, and set ...

example 2

[0032] Another method is used in the core pretreatment step. The natural core obtained by coring is cut to a thickness of about 1 cm and a bottom diameter of about 3 cm. Encapsulate and protect the core: wrap the core block with a commonly used heat-resistant film, and vacuum-encapsulate the core block in the film with a vacuum packaging machine, and the other film is close to the side wall of the core. The thermosetting resin and curing agent are prepared in a weight ratio of 20:1 to 5:1, and the preferred weight ratio is 10:1. The thermosetting resin is epoxy resin, and the curing agent is a known curing agent material in the art. Use triethanolamine. After the thermosetting resin and curing agent are formulated, they are cast around the core, and set in a thermostat at a temperature of 50-80°C for 6-10 hours to make the resin solidify and form around the core. After the resin is cured, cut the entire block transversely, take the block containing the main core surface, grin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a two-dimensional heat curing porous medium model, which comprises a bottom plate (2) and a cover plate (1), wherein the bottom plate (2) is formed by mixing heat reactive resin and curing agent, the cover plate (1) is also formed by mixing heat reactive resin and curing agent, the cover plate and the bottom plate are adhered with each other, the bottom plate is provided with a two-dimensional pore channel structure (3) corresponding to a pore channel structure of a rock core, and the bottom plate is further provided with a fluid inflow pore channel (4) and a fluid outflow pore channel (5) which are communicated with the two-dimensional pore channel structure. In addition, the invention further relates to a manufacturing method for the two-dimensional heat curing porous medium model. The two-dimensional heat curing porous medium model is low in technical difficulty in manufacturing, is low in requirement on hardware and easy to obtain in a conventional laboratory, the manufactured model is fine in visibility and easy in observation, and different models can be manufactured according to different master plates.

Description

Technical field [0001] The invention belongs to the field of petroleum micro-mechanism research, and relates to a porous medium model for simulating the pore structure of a core and a manufacturing method of the model, and in particular to a porous medium model and manufacturing method used to complete a microscopic oil displacement test in an oil field method. Background technique [0002] Studying the mechanism of fluid seepage in porous media on a microscopic scale is of great significance for the development of underground fluid resources such as petroleum and natural gas. For a long time, in order to study the seepage mechanism of fluid in porous media at the micro-scale, domestic and foreign researchers have developed a variety of physical models that simulate porous media, including: Simplify ideal models, such as single-layer glass bead model, microcapillary network model, and quartz sand sandwich model. The pore structure of these models is idealized and cannot reflect ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N13/04
Inventor 朱维耀蔡强覃柏龙运前宋洪庆
Owner UNIV OF SCI & TECH BEIJING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap