Title:
DEEP GEOTHERMAL FIELD PREDICTION METHOD AND DEVICE BASED ON TEMPERATURE-PRESSURE-RESISTIVITY COUPLING CONSTRAINTS
Document Type and Number:
WIPO Patent Application WO/2023/202047
Kind Code:
A1
Abstract:
A deep geothermal field prediction method and device based on temperature-pressure-resistivity coupling constraints. The method comprises: equally dividing well logging resistivity-overlying formation pressure-temperature data of m boreholes in a research area or an adjacent area into N sections according to depth, and normalizing the resistivity of each section; deducing exact relationship representations between the normalized resistivity and the temperature and pressure in different sections of different formations; inverting electromagnetic data in the research area to obtain resistivity distribution characteristics, equally dividing the inversion resistivity into M sections, and normalizing same into normalized inversion resistivity; inverting density distribution by means of gravity observation data and converting into overlying formation pressure; and on the basis of the exact relationship representations of different sections (depths), the normalized inversion resistivity and the overlying formation pressure, calculating distribution characteristics of a deep geothermal field layer by layer and point by point. On the basis of overlying formation pressure constraints, the macroscopic resistivity characteristics of underground mediums can be accurately converted into visual geothermal field distribution, and the prediction range is wide and deep.
Inventors:
HU XIANGYUN (CN)
HUANG GUOSHU (CN)
CAI JIANCHAO (CN)
YANG JIAN (CN)
MA HUOLIN (CN)
ZHOU WENLONG (CN)
HUANG GUOSHU (CN)
CAI JIANCHAO (CN)
YANG JIAN (CN)
MA HUOLIN (CN)
ZHOU WENLONG (CN)
Application Number:
PCT/CN2022/131137
Publication Date:
October 26, 2023
Filing Date:
November 10, 2022
Export Citation:
Assignee:
UNIV CHINA GEOSCIENCES WUHAN (CN)
International Classes:
G01K13/10; G01V3/38; G01N25/00
Foreign References:
| CN113625364A | 2021-11-09 | |||
| CN113176618A | 2021-07-27 | |||
| CN113901681A | 2022-01-07 | |||
| CN110566171A | 2019-12-13 | |||
| CN109931054A | 2019-06-25 | |||
| US20210264262A1 | 2021-08-26 |
Attorney, Agent or Firm:
BTA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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