A Comprehensive Logging Evaluation Method for High Quality Shale Gas Reservoirs in Fuling

CHEN Siping; TAN Pan; SHI Wenrui; ZHAO Hongyan

doi:10.11911/syztjs.2020091

Volume 48 Issue 4

Aug. 2020

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Petroleum Drilling Techniques > 2020 > 48(4): 131-138. > DOI: 10.11911/syztjs.2020091

CHEN Siping, TAN Pan, SHI Wenrui, ZHAO Hongyan. A Comprehensive Logging Evaluation Method for High Quality Shale Gas Reservoirs in Fuling[J]. Petroleum Drilling Techniques, 2020, 48(4): 131-138. DOI: 10.11911/syztjs.2020091

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A Comprehensive Logging Evaluation Method for High Quality Shale Gas Reservoirs in Fuling

1.
Sinopec Jianghan Oilfield Service Corporation, Qianjiang, Hubei, 433124, China
2.
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University), Chengdu, Sichuan, 610500, China

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Received Date: December 22, 2019
Revised Date: June 10, 2020
Available Online: June 21, 2020

Graphical Abstract

Abstract

Abstract

In order to evaluate the “2X excellence” reservoirs in geology and engineering in Fuling Shale Gas Field with high quality and accuracy, the relationship between well testing data and geological/engineering evaluation parameters in the gas field was qualitatively analyzed, and then the geological/engineering parameters were selected through the European distance-squared systematic clustering method. On the basis of core test analysis data and logging data of the gas field, the logging evaluation model of geological and engineering “2X excellence” reservoir was established by using core calibration logging technology. Finally, the shale gas reservoir geological index and engineering index were calculated to establish the comprehensive evaluation chart of “2X excellence” reservoir by combining the gas producing profile logging data and using the gray correlation theory in the gas field, so as to determine the weight of the “2X excellence” reservoir parameters for production evaluation, forming the comprehensive evaluation method of such reservoir in shale gas geology and engineering. The comprehensive evaluation index of 28 wells in the Pingqiao Block of the Fuling Shale Gas Field has been evaluated by this method, and showed that the production of a single section and a single well of shale gas possessing a significant positive correlation with the comprehensive evaluation index and the crossing length in “2X Excellence” reservoir, which indicates that the shale gas reservoir could be evaluated by the proposed comprehensive logging evaluation method of shale gas geological and engineering the “2X Excellence” reservoir, and provide basis for shale gas horizontal well design and staged fracturing.
- shale gas,
- geology and engineering,
- “2X Excellence” reservoir,
- logging evaluation,
- Fuling Shale Gas Field

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A Comprehensive Logging Evaluation Method for High Quality Shale Gas Reservoirs in Fuling

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