Wangfu Low-Permeability Volcanic Gas Reservoir Microstructure and Damage Mechanism
- Authors: Xu J.1,2, Shen Y.3, Ge H.3
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Affiliations:
- College of Pipeline and Civil Engineering, China University of Petroleum
- PetroChina Jilin Oilfield Company
- China University of Petroleum
- Issue: Vol 53, No 1 (2017)
- Pages: 96-106
- Section: Innovative Technologies in the Oil and Gas Sector
- URL: https://journals.rcsi.science/0009-3092/article/view/234870
- DOI: https://doi.org/10.1007/s10553-017-0785-7
- ID: 234870
Cite item
Abstract
The microstructure of the Wangfu volcanic reservoir and the predicted permeability reduction of this reservoir are investigated. It is found that water block (strata permeability reduction due to the penetration of water into the pore space) and fracturing fluid residue are the main causes of reduced deposit gas permeability. A subsuite of this reservoir, Quan-1, is sensitive to water whereas the Huoshiling and Shahezi formations are sensitive to acids. Therefore, an acidic fracturing fluid should be used in the first instance, and fluid with a low concentration of guar gum and minimal acid content – in the second. However, fracturing fluids with anionic surfactants should be used to solve the water-block problem in all three deposits, thereby increasing process efficiency.
About the authors
Jianguo Xu
College of Pipeline and Civil Engineering, China University of Petroleum; PetroChina Jilin Oilfield Company
Email: shenyinghao@126.com
China, Qingdao, Shandong; Songyuan, Jilin
Yinghao Shen
China University of Petroleum
Author for correspondence.
Email: shenyinghao@126.com
China, Beijing
Hongkui Ge
China University of Petroleum
Email: shenyinghao@126.com
China, Beijing