Title:
ANNULUS WATER INJECTION DISTRIBUTED SPRAY COOLING METHOD FOR HIGH-TEMPERATURE UNDERGROUND GAS
Document Type and Number:
WIPO Patent Application WO/2023/124897
Kind Code:
A1
Abstract:
An annulus water injection distributed spray cooling method for high-temperature underground gas, the method comprising: inserting a production tubing (1) into an annulus water pipe (2), to form an annular water column area (3) between the annular water pipe (2) and the production tubing (1), and form a high-temperature underground gas production channel in an inner cavity of the production tubing (1); and arranging a plurality of nozzles (4) on the production tubing (1), and atomizing and spraying cooling water of the annular water column area (3) into the inner cavity of the production tubing (1) through the nozzles (4), to complete spray cooling of the high-temperature underground gas. The cooling water in the annular water column area (3) forms droplets in an atomized state by means of the nozzles (4) on the production tubing (1), and makes full contact with high-temperature and high-pressure gas in the inner cavity of the production tubing (1), such that heat exchange can be completed instantly, to cool the high-temperature and high-pressure gas.
Inventors:
YUAN GUANGJIE (CN)
CHE YANG (CN)
LIU YISHAN (CN)
QIAO LEI (CN)
LIN SHENGJIE (CN)
HE AIGUO (CN)
WANG CHENLONG (CN)
WANG KAILONG (CN)
DONG SHENGXIANG (CN)
DU WEIQIANG (CN)
ZHENG LI (CN)
LI PING (CN)
CHE YANG (CN)
LIU YISHAN (CN)
QIAO LEI (CN)
LIN SHENGJIE (CN)
HE AIGUO (CN)
WANG CHENLONG (CN)
WANG KAILONG (CN)
DONG SHENGXIANG (CN)
DU WEIQIANG (CN)
ZHENG LI (CN)
LI PING (CN)
Application Number:
PCT/CN2022/137839
Publication Date:
July 06, 2023
Filing Date:
December 09, 2022
Export Citation:
Assignee:
CHINA NAT PETROLEUM CORP (CN)
CNPC ENG TECH RES & DEV CO LTD (CN)
CNPC ENG TECH RES & DEV CO LTD (CN)
International Classes:
E21B36/00; E21B43/295; E21B41/00
Foreign References:
| CN114198079A | 2022-03-18 | |||
| CN212317963U | 2021-01-08 | |||
| CN205990904U | 2017-03-01 | |||
| JP2020158549A | 2020-10-01 | |||
| CN107605454A | 2018-01-19 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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