Induced stress interaction during multi-stage hydraulic fracturing from horizontal wells using boundary element method
文献类型：会议论文
| 作者 | Shi X1; Yang L(杨柳)2; Li ML3; Cheng YF1 |
| 出版日期 | 2017 |
| 会议日期 | May 10, 2017 - May 13, 2017 |
| 会议地点 | Jeju, Korea, Republic of |
| 关键词 | Boundary element method Complex networks Fracture Hydraulic fracturing Rock mechanics Sailing vessels Stress analysis Fracture network Gas productivity Horizontal stress Inclination angles Multiple fracture Sequential manners Stress condition Unconventional reservoirs |
| 页码 | 354-358 |
| 英文摘要 | Multistage hydraulic fracturing is commonly applied to enhance gas productivity in unconventional reservoirs. Since the multiple fractures are created and propagated simultaneously or in a sequential manner from perforation clusters, the induced stress interference is a predominant reservoir geomechanical consideration in multi-stage hydraulic fracturing design. This paper presents a numerical model for multiple fracture propagation and induced stress analysis in multi-stage horizontal wells. The reservoir rock is assumed linear elastic, homogenous and isotropic. The influences of original stress condition, perforation numbers, wellbore inclination angles and some critical parameters on the feasibility of complex fracture network generation are investigated. The results demonstrate that the stress interference of the simultaneous initiation of fractures in simultaneous perforation manner is greater than conventional sequential perforation manner in one stage, which is beneficial for complex fracture network complexity. Under sequential fracturing manner, the induced stress increases with the increased length of the pressurized fracture. Moreover, the perforation orientations and original horizontal stress difference controls the stress interference simultaneously and then affect complex fracture network generation. In particular, if the horizontal stress difference is great, it’s hard to create complex fracture network under current hydraulic fracturing stimulation technology. © 2017 by Korean Society for Rock Mechanics. |
| 会议录 | 4th ISRM Young Scholars Symposium on Rock Mechanics, YSS 2017
 |
| 语种 | 英语 |
| ISBN号 | 9791156103158 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/78012]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.China University of Petroleum (Huadong), Qingdao, Shandong, China; 2.Institute of Mechanics, Chinese Academy of Sciences, Beijing, China; 3.Chongqing Institute of Geology and Mineral Resources, Chongqing, China |
| 推荐引用方式 GB/T 7714 | Shi X,Yang L,Li ML,et al. Induced stress interaction during multi-stage hydraulic fracturing from horizontal wells using boundary element method[C]. 见:. Jeju, Korea, Republic of. May 10, 2017 - May 13, 2017. |
入库方式： OAI收割
来源：力学研究所
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