Experimental device and method for simulating carbon dioxide saturated fluid-surrounding rock interaction

A technology of carbon dioxide and experimental equipment, which is applied in the direction of educational appliances, teaching models, instruments, etc., and can solve problems such as the inability to prepare saturated carbon dioxide fluid, the inability to truly reproduce the reaction environment, and the single reaction pressure condition

Pending Publication Date: 2021-12-07
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Since this type of device is only designed with one reactor and one fluid booster pump, it can only simulate the water-rock reaction at a certain depth of temperature and pressure, and the reaction pressure condition is relatively simple.
At the same time, due to the lack of a corresponding carbon dioxide gas pressurization system, it is impossible to prepare saturated carbon dioxide fluid corresponding to formation pressure conditions, and it is impossible to truly reproduce the reaction environment
However, only imitating the saturated carbon dioxide fluid-rock reaction in the normal temperature and pressure environment on the surface obviously cannot meet the current needs of deep exploration and exploration of the deep fluid-rock reaction process / mechanism

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
  • Experimental device and method for simulating carbon dioxide saturated fluid-surrounding rock interaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 As shown, the experimental device 10 for simulating the interaction between carbon dioxide saturated fluid and surrounding rock in the embodiment of the present invention includes a gas cylinder 1 for storing carbon dioxide gas, a pressure vessel 2 for storing reaction fluid, an intermediate vessel 3, a preheater 4, a high temperature and high pressure Reactor 5 and chemical signal acquisition device 6. Among them, the gas cylinder 1 and the pressure vessel 2 are respectively connected to the intermediate container 3 , the preheater 4 is respectively connected to the intermediate container 3 and the high-temperature and high-pressure reactor 5 , and the chemical signal collection device 6 is connected to the high-temperature and high-pressure reactor 5 . A booster pump 7 is arranged between the gas cylinder 1 and the intermediate container 3 . A constant pressure and constant flow pump 8 is provided between the pressure vessel 2 and the intermediate ve...

Embodiment 2

[0046] Such as figure 1 As shown, the experimental method of simulating the interaction between carbon dioxide saturated fluid and surrounding rock in the embodiment of the present invention, the specific process is as follows:

[0047] (1) Debugging before the experiment: connect the pipeline, open between the gas cylinder 1 and the booster pump 7, between the booster pump 7 and the intermediate container 3, between the intermediate container 3 and the preheater 4, and between the preheater 4 and the The cut-off valve 9 between the high-temperature and high-pressure reactors 5 is connected to the pure water in the whole system to test the sealing performance, and the constant pressure and constant flow pump 8 is controlled to push the liquid in the pressure vessel 2 into the intermediate vessel 3, and then passes through the preheater 4. Push it to the high temperature and high pressure reactor after heating. 5. Test the background ion concentration in the blank fluid through...

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 provides an experimental device for simulating carbon dioxide saturated fluid-surrounding rock interaction. A carbon dioxide gas source and a reaction fluid source are respectively connected with an intermediate container, a preheater is respectively connected with the intermediate container and a reaction kettle, and a chemical signal acquisition device is connected with the reaction kettle. A booster pump is arranged between the carbon dioxide gas source and the intermediate container. A constant-pressure constant-flow pump is arranged between the reaction fluid source and the intermediate container. Control valves are arranged between the carbon dioxide gas source and the booster pump, between the booster pump and the intermediate container, between the intermediate container and the preheater and between the preheater and the reaction kettle. A back-pressure valve is arranged between the reaction kettle and the chemical signal acquisition device. The invention further provides an experimental method. According to the device and the method, the process that the carbon dioxide saturated fluid reforms the surrounding rocks of strata with different depths and different positions in a carbon dioxide saturated fluid-surrounding rock system from the deep stratum to the earth surface can be simulated, and the reaction process is monitored in real time on line and recorded and stored.

Description

technical field [0001] The invention relates to the technical field of water-rock reaction process research, in particular to an experimental device and method for simulating the interaction between a carbon dioxide-saturated fluid and surrounding rock. Background technique [0002] The main oil and gas basins in China have all experienced large-scale deep source CO 2 Activity. Contains CO 2 The fluid will carry out dissolution reformation on the deep reservoir. Today's oil and gas exploration practices have revealed the important oil and gas value of carbon dioxide reformed oil and gas reservoirs. The carbon dioxide fluid migrates along the fracture system and continuously reforms the surrounding rock, and the storage performance of the reformed surrounding rock is improved and enhanced. The source of fluid may be deep hydrothermal fluid, formation water or pore water, etc. The source of carbon dioxide may be mantle source, or it may be carbon dioxide in the atmosphere....

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
Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/40
CPCG09B23/40
Inventor 丁茜何治亮刘全有朱东亚王静彬
Owner CHINA PETROLEUM & CHEM CORP
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