Method for carbon sequestration by using organic ore bed subjected to in-situ pyrolysis

An in-situ pyrolysis and organic mineral technology, which is applied in the fields of earth drilling, mining fluids, sustainable manufacturing/processing, etc., can solve problems such as excessive carbon dioxide emissions, achieve efficient energy recovery, and reduce carbon dioxide content.

Active Publication Date: 2021-09-24
TAIYUAN UNIV OF TECH
View PDF15 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the current problem of excessive carbon dioxide emission

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
  • Method for carbon sequestration by using organic ore bed subjected to in-situ pyrolysis
  • Method for carbon sequestration by using organic ore bed subjected to in-situ pyrolysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] When the thickness of the oil shale deposit is 5m, the buried depth is 300m. A method for carbon sequestration using in-situ pyrolyzed organic mineral layers, the specific steps of which are as follows:

[0029] (1) After the in-situ pyrolysis of the organic mineral layer is completed, normal temperature water is injected into the middle well 1, and the remaining peripheral wells 2 are drained. 2, the discharge and production port monitors the temperature change of the water vapor.

[0030] (2) During the heat exchange process of water at normal temperature, a large amount of stagnant water will be formed inside the ore seam, which can fully dissolve calcium and magnesium ions. When the water vapor temperature monitored after drainage reaches 150°C, the peripheral well 2 will be closed, and the middle well 1 will be closed. Inject 0.5MPa of carbon dioxide and monitor the pressure change at the bottom of the peripheral well 2; when the pressure at the bottom of the peri...

Embodiment 2

[0036] When the thickness of the oil shale deposit is 10m, the buried depth is 600m. A method for carbon sequestration using in-situ pyrolyzed organic mineral layers, the specific steps of which are as follows:

[0037] (1) After the in-situ pyrolysis of the organic mineral layer is completed, normal-temperature water is injected into the peripheral well 2, and the middle well 1 is drained. After the normal-temperature water passes through the high-temperature mineral layer, the temperature rises rapidly to form water vapor, which is monitored at the drainage outlet The temperature change of water vapor.

[0038] (2) During the heat exchange process of water at normal temperature, a large amount of stagnant water will be formed inside the ore seam, which can fully dissolve calcium and magnesium ions. When the water vapor temperature monitored after drainage reaches 150°C, the peripheral well 2 will be closed, and the middle well 1 will be closed. Inject 1.0 MPa of carbon diox...

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

PropertyMeasurementUnit
Depthaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of carbon dioxide geological sequestration and capture, and discloses a method for carbon sequestration by using an organic ore bed subjected to in-situ pyrolysis. According to the method, on the basis of in-situ efficient pyrolysis of the organic ore bed, a large number of pore fracture spaces in the pyrolyzed ore bed are used for physical sequestration of the carbon, a large number of free metal ions in the pyrolyzed ore bed are used for chemical sequestration of the carbon, and therefore efficient and stable sequestration of carbon dioxide are achieved. Water is injected into the ore bed subjected to in-situ pyrolysis, so that calcium and magnesium ions in the ore bed are dissolved into the water, and good conditions are provided for a reaction of the carbon dioxide and the calcium and magnesium ions; a double sequestration technology of physical sequestration and chemical sequestration is formed; and the method is particularly suitable for sequestration of the carbon dioxide by using the organic ore bed subjected to in-situ pyrolysis and having different thicknesses with the depth of 300 m.

Description

technical field [0001] The invention relates to the technical field of carbon dioxide geological sequestration and capture, in particular to a method for carbon sequestration using in-situ pyrolyzed organic mineral layers. Background technique [0002] The combustion of fossil energy fuels such as coal will produce a large amount of carbon dioxide greenhouse gas and other toxic and harmful gases, causing very serious environmental and ecological problems. Efficient and permanent storage of carbon dioxide in the atmosphere underground is an effective method under the background and requirements of "double carbon". Through in-situ heat injection mining, underground organic rocks can be pyrolyzed to form oil and gas products that can be extracted to the ground, while the pyrolyzed ore layers still remain underground, playing a role in supporting the overlying rock and controlling surface deformation. Making full use of the huge reserves of underground resources for carbon capt...

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): E21B43/16E21B43/20E21B43/30
CPCE21B43/164E21B43/20E21B43/30Y02P90/70
Inventor 王磊赵静张红鸽康志勤杨栋
Owner TAIYUAN UNIV OF TECH
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