Unreliable determination of in situ stress orientation by cross multipole array acoustic logging in fractured shale reservoirs
文献类型：期刊论文
| 作者 | Yang, Haimeng1; Yu, Jifeng1; Liu, Jingshou2,4; Hu, Caifu3; Zhang, Binxin4; Chen, Peng4 |
| 刊名 | ENERGY SCIENCE & ENGINEERING
 |
| 出版日期 | 2023-06-28 |
| 卷号 | -期号:-页码:- |
| 关键词 | in situ stress lower Cambrian shale reservoir structural fracture XMAC |
| 英文摘要 | With the development of shale gas exploration in China, the use of conventional logging tools has been introduced, and cross multipole array acoustic logging tools have gradually been used to determine the stress orientation in shale. The direction of fast shear waves (FSWs) is generally parallel to the horizontal maximum principal compression stress (S-Hmax). However, the azimuth of FSWs is found to be parallel to the main strike (but not to the S-Hmax) direction of structural fractures in shale reservoirs. Outcrop and image logging data indicate that the natural fractures in this area strike NE-SW. If the shear wave anisotropy is caused by only the stress around the borehole and the FSWs are known to be NE-SW, S-Hmax should be parallel to NE-SW; however, according to statistics of land movement in adjacent areas, anelastic strain recovery, earthquake focal mechanism, borehole breakouts, hydraulic fracturing data, deviated well data, and drilling-induced fracture data in local regions, S-Hmax is oriented in the NW-SE direction, and the directions of FSWs are generally parallel to the structural fracture direction. This contradiction indicates that the development of structural fractures may affect the orientation of FSWs. Therefore, it is not reliable to use XMAC (Cross-Multipole Array Acoustilog) logging only to determine the direction of in situ stress in fractured shale reservoirs. In addition, the direction of the FSWs in the middle of thick mudstones is NW-SE, which may represent accurate information about the in situ stress direction. |
| 学科主题 | Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:001015576900001 |
| 出版者 | WILEY |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35264]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.College of Earth Sciences and Engineering, Shandong University of Science and Technology, Qingdao, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China 3.Tongren Zhongneng Natural Gas Co., Ltd., Tongren, China 4.School of Earth Resources, China University of Geosciences, Wuhan, China |
| 推荐引用方式 GB/T 7714 | Yang, Haimeng,Yu, Jifeng,Liu, Jingshou,et al. Unreliable determination of in situ stress orientation by cross multipole array acoustic logging in fractured shale reservoirs[J]. ENERGY SCIENCE & ENGINEERING,2023,-(-):-. |
| APA | Yang, Haimeng,Yu, Jifeng,Liu, Jingshou,Hu, Caifu,Zhang, Binxin,&Chen, Peng.(2023).Unreliable determination of in situ stress orientation by cross multipole array acoustic logging in fractured shale reservoirs.ENERGY SCIENCE & ENGINEERING,-(-),-. |
| MLA | Yang, Haimeng,et al."Unreliable determination of in situ stress orientation by cross multipole array acoustic logging in fractured shale reservoirs".ENERGY SCIENCE & ENGINEERING -.-(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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