CCUS SYSTEM FOR MINING OIL RESERVOIR ON THE BASIS OF OPTIMAL FLUE GAS CO2 ENRICHMENT RATIO AND OPERATING METHOD THEREFOR

Title:

CCUS SYSTEM FOR MINING OIL RESERVOIR ON THE BASIS OF OPTIMAL FLUE GAS CO2 ENRICHMENT RATIO AND OPERATING METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2019/056870

Kind Code:

A1

Abstract:

Disclosed is a carbon capture, utilization and storage (CCUS) system for mining a heavy oil reservoir on the basis of an optimal flue gas CO2 enrichment ratio, comprising a flue gas CO2 enriching unit, a flue gas injection unit, a heavy oil thermal production well group unit and a produced gas recovery unit; the flue gas CO2 enriching unit comprises: an air separating and enriching unit and a boiler injection gas premixing tank; the air separating and enriching unit comprises: an air separating primary device, which is used for preliminarily separating air into oxygen and nitrogen; an air separating secondary device, which is used for further enriching part of the preliminarily separated oxygen; the boiler injection gas premixing tank is used for mixing the preliminarily separated nitrogen, part of the preliminarily separated oxygen and/or further enriched oxygen. Compared with traditional CCUS systems and processes, the CCUS system may be adjusted in real time on the basis of a flue gas CO2 enrichment ratio so as to directly inject boiler flue gas after purification, change CO2 capture into flue gas CO2 enrichment, and greatly reduce the energy consumption of a CO2 capture chain during a CCUS process.

Inventors:

ZHANG CHAO (CN)
LI ZHAOMIN (CN)
LIU JIANLIN (CN)
ZHAO DONGYA (CN)
LU TENG (CN)
WU SHOUYA (CN)
GUO LONGJIANG (CN)

Application Number:

PCT/CN2018/098456

Publication Date:

March 28, 2019

Filing Date:

August 03, 2018

Export Citation:

Click for automatic bibliography generation Help

Assignee:

UNIV CHINA PETROLEUM (CN)

International Classes:

E21B43/16

Foreign References:

CN107575190A	2018-01-12
CN103233709A	2013-08-07
CN101855169A	2010-10-06
CN106437653A	2017-02-22
CN103403291A	2013-11-20
US20140020913A1	2014-01-23
US20120181028A1	2012-07-19
CN201510227342A	2015-05-06
CN201510201327A	2015-04-23

Other References:

OIL EXPLORATION AND DEVELOPMENT, vol. 40, no. 1, 2013, pages 2 - 0
OIL GAS GEOLOGY AND RECOVERY RATIO, vol. 1, 2009
"Application Analysis of Oxygen-Enriched Combustion Technology in 150 t/h Circulating Fluidized Bedboiler (J)", COAL PROCESSING AND COMPREHENSIVE UTILIZATION, vol. 28, 2013, pages 61 - 64

Attorney, Agent or Firm:

ZHUSEN INTELLECTUAL PROPERTY AGENCY OFFICE (CN)

Download PDF:

View/Download PDF PDF Help

Previous Patent: ARRAY SUBSTRATE, MANUFACTURING METHOD THEREFOR, AND TOUCH DISPLAY PANEL

Next Patent: SURGICAL ROBOT SYSTEM