IMECH-IR  > 流固耦合系统力学重点实验室
Experimental study on water invasion mechanism of fractured carbonate gas reservoirs in Longwangmiao Formation, Moxi block, Sichuan Basin
Fang FF; Shen WJ(沈伟军); Li XZ; Gao SS; Liu HX; Li J
Corresponding AuthorShen, Weijun(wjshen763@gmail.com)
Source PublicationEnvironmental Earth Sciences
2019-05
Volume78Issue:10Pages:316(1-11)
ISSN1866-6280
AbstractFractured carbonate gas reservoirs feature high heterogeneity and difficulty in development, and the invasion of edge and bottom water intensifies the complexity of exploitation of such gas reservoirs. In this study, reservoir cores with a permeability of 0.001 mD, 0.1 mD, and 10 mD were selected by analyzing the fracture characteristics of the Longwangmiao gas reservoir, and water invasion in fractured carbonate gas reservoirs with edge and bottom water was simulated using an experimental system to investigate the effects of different parameters on gas reservoir exploitation. The results show that the larger the water volume ratio, the more serious the water invasion and the lower the recovery factor. But water aquifer did not strongly affect the recovery factor once the water aquifer exceeded a critical value. The higher the gas production rate, the faster the water invasion and the smaller the recovery factor. The recovery factor peaked when the gas production rate was equivalent to the gas supply capacity of the matrix to the fractures. For gas reservoirs with the overall permeability, the higher the matrix permeability, the higher the recovery factor. Although an appropriate fracturing scale was able to enhance the recovery factor when its matrix permeability was low, an excessive fracturing scale would cause water to flow along the fractures at a rapid rate, which further caused a sharp decline in the recovery factor. With the increase of matrix permeability, fractures exerted a decreasing effect on gas reservoirs. These results can provide insights into a better understanding of water invasion and the effects of reservoir properties so as to optimize gas production in fractured carbonate gas reservoirs.
KeywordFractured carbonate gas reservoirs Physical simulation Water volume ratio Matrix permeability Recovery factor Water influx
DOI10.1007/s12665-019-8325-x
Indexed BySCI
Language英语
WOS IDWOS:000468096000016
WOS Research AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
Funding ProjectNational Natural Science Foundation of China[11802312] ; National Natural Science Foundation of China[U1762216] ; Ministry of Science and Technology of China[2017ZX05030003] ; Youth Foundation of Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Chinese Academy of Sciences
Funding OrganizationNational Natural Science Foundation of China ; Ministry of Science and Technology of China ; Youth Foundation of Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Chinese Academy of Sciences
ClassificationQ3
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78758
Collection流固耦合系统力学重点实验室
Corresponding AuthorShen WJ(沈伟军)
Affiliation1.School of Petroleum Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
2.School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China
3.Institute of Porous Flow and Fluid Mechanics, Chinese Academy of Sciences, Langfang, Hebei 065007, China
4.Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
5.Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, Chin
6.PetroChina Coalbed Methane Company Limited, Beijing 100028, China
Recommended Citation
GB/T 7714
Fang FF,Shen WJ,Li XZ,et al. Experimental study on water invasion mechanism of fractured carbonate gas reservoirs in Longwangmiao Formation, Moxi block, Sichuan Basin[J]. Environmental Earth Sciences,2019,78(10):316(1-11).
APA Fang FF,Shen WJ,Li XZ,Gao SS,Liu HX,&Li J.(2019).Experimental study on water invasion mechanism of fractured carbonate gas reservoirs in Longwangmiao Formation, Moxi block, Sichuan Basin.Environmental Earth Sciences,78(10),316(1-11).
MLA Fang FF,et al."Experimental study on water invasion mechanism of fractured carbonate gas reservoirs in Longwangmiao Formation, Moxi block, Sichuan Basin".Environmental Earth Sciences 78.10(2019):316(1-11).
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