| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8072551 | Energy | 2018 | 11 Pages |
Abstract
In this study, chemical stimulation was carried out to improve the hydraulic properties of fractured granite. The effects on the hydraulic properties of two sets of samples were examined by laboratory flowing tests. Results show that chemical stimulation solution with mixture of 12%HCl+5%HF improved efficiently permeability. The permeability was increased by four orders of magnitudes with an optimized reaction time. The mud acid was found to react fast with minerals such as feldspars and biotite, but rather inactive with quartz as revealed by the microscopic structure and ionic detection of the fluid and rocks. Thereby, the quartz particles can be used as fracturing proppant to support opening of aperture. The findings obtained from this study indicated that a hydraulic fractured granite based HDR geothermal reservoir can be effectively improved by chemical stimulation.
Related Topics
Physical Sciences and Engineering
Energy
Energy (General)
Authors
Jin Luo, Yongqiang Zhu, Qinghai Guo, Long Tan, Yaqin Zhuang, Mingliang Liu, Canhai Zhang, Mingcheng Zhu, Wei Xiang,