LAPSE:2024.1318
Published Article
LAPSE:2024.1318
Investigating the Influencing Factors of Imbibition of Fracturing Fluids in Tight Reservoirs
Jian Liu, Xuefeng Qu, Jiwei Wang, Qiang Liu, Lei Zhang, Tao Huang, Haiyang Yu
June 21, 2024
Tight reservoirs are the focus of unconventional oil and gas resource development, but most tight reservoirs exhibit complex pore structures, strong non-homogeneity, and limited water drive development. Fracturing fluid imbibition is a critically important way to improve the recovery of tight reservoirs. In this paper, an NMR experimental device was used to conduct imbibition experiments in tight reservoirs, and the relationship between temperature, pressure, matrix permeability, and imbibition recovery was investigated. Based on the fracturing fluid imbibition recovery curve, the imbibition process is divided into the fast imbibition stage, slow imbibition stage, and imbibition equilibrium. In addition, based on the pore structure division, the recovery changes of each pore under different experimental conditions were quantitatively analyzed. The results indicate that the highest imbibition recovery is achieved at an experimental pressure of 5 MPa within the range of 0 MPa to 15 MPa. Increasing the experimental pressure can increase the imbibition rate but will not increase imbibition recovery. Within the investigated range in this paper, fracturing fluid imbibition increases with rising temperature and matrix permeability. Moreover, the recovery of each pore gradually increases with the experimental pressure ranging from 0 MPa to 5 MPa. The recovery of each pore is positively correlated with matrix permeability and temperature. During the experiment, micropores contributed the most to the recovery, while macropores contributed the least. The study in this paper guides the efficient development of tight reservoirs.
Keywords
fracturing fluids, matrix permeability, pressure, temperature, tight reservoir
Subject
Suggested Citation
Liu J, Qu X, Wang J, Liu Q, Zhang L, Huang T, Yu H. Investigating the Influencing Factors of Imbibition of Fracturing Fluids in Tight Reservoirs. (2024). LAPSE:2024.1318
Author Affiliations
Liu J: Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi’an 710018, China
Qu X: Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi’an 710018, China
Wang J: Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi’an 710018, China
Liu Q: Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi’an 710018, China
Zhang L: State Key Laboratory of Petroleum and Prospecting, China University of Petroleum, Beijing 102249, China
Huang T: State Key Laboratory of Petroleum and Prospecting, China University of Petroleum, Beijing 102249, China
Yu H: State Key Laboratory of Petroleum and Prospecting, China University of Petroleum, Beijing 102249, China [ORCID]
Journal Name
Processes
Volume
12
Issue
1
First Page
236
Year
2024
Publication Date
2024-01-22
Published Version
ISSN
2227-9717
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PII: pr12010236, Publication Type: Journal Article
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LAPSE:2024.1318
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doi:10.3390/pr12010236
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Jun 21, 2024
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Jun 21, 2024
 
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