Title:
FAULT SEALING EVALUATION METHOD FOR EXTRACTING STATIC QUALITY COEFFICIENT BY MEANS OF WELL LOGGING
Document Type and Number:
WIPO Patent Application WO/2020/244044
Kind Code:
A1
Abstract:
The present invention relates to the field of geological exploration and development evaluation of oil and gas resources, and discloses a fault sealing evaluation method for extracting a static quality coefficient by means of well logging. The evaluation method comprises: step one, performing frequency spectrum attribute analysis, wavelet attribute analysis, and integrated attribute analysis on conventional well log data of a fault zone, and performing optimization on a sensitivity attribute parameter; step two, combining a selected well log attribute parameter of a fault zone structure and a parameter representing the degree of fracture development, and constructing a fault zone structure division parameter; step three, using well log data of a research block to represent a correlation coefficient of fault sealing and the fault zone structure division parameter, and acquiring a static quality coefficient S extracted by means of well logging; and step four, acquiring a criterion for identifying fault sealing by means of the coefficient S extracted for the research block on the basis of a well log attribute. The method takes into account the effect of an internal fault structure on fault sealing, addresses the influence of the fault sealing to a certain degree, and has practical significance for reservoir evaluation based on well logging and oilfield development in a complex fault-block oil and gas field.
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| WO/2008/082828 | WAVE ANALYSIS USING PHASE VELOCITY PROCESSING |
| WO/1992/000532 | METHOD FOR ATTRIBUTE TRACKING IN SEISMIC DATA |
| WO/2010/123638 | DETERMINING ATTRIBUTES OF SEISMIC EVENTS |
Inventors:
SUN JIANMENG (CN)
LIU HAITAO (CN)
SONG JIAJIA (CN)
YAN WEICHAO (CN)
LIU HAITAO (CN)
SONG JIAJIA (CN)
YAN WEICHAO (CN)
Application Number:
PCT/CN2019/098541
Publication Date:
December 10, 2020
Filing Date:
July 31, 2019
Export Citation:
Assignee:
UNIV CHINA PETROLEUM EAST CHINA (CN)
TUHA BRANCH OF CNPC LOGGING CO LTD (CN)
TUHA BRANCH OF CNPC LOGGING CO LTD (CN)
International Classes:
G01V1/30; G01V11/00
Domestic Patent References:
| WO2018215865A1 | 2018-11-29 |
Foreign References:
| CN106772675A | 2017-05-31 | |||
| CN106526693A | 2017-03-22 | |||
| CN102369460A | 2012-03-07 | |||
| CN104375183A | 2015-02-25 | |||
| US20120029826A1 | 2012-02-02 |
Other References:
ZHANG, XINSHUN ET AL.: "Non-official translation: A Comment on Research Methods of Fault Sealing Capacity", LITHOLOGIC RESERVOIRS, vol. 25, no. 2, 30 April 2020 (2020-04-30), ISSN: 1673-8926, DOI: 20200303111415Y
Attorney, Agent or Firm:
QINGDAO ZHIDILINGCHUANG PATENT AGENCY CO., LTD (CN)
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