Numerical Analysis of Transient Pressure Behaviors with Shale Gas MFHWs Interference

doi:10.3390/en12020262

IMECH-IR > 流固耦合系统力学重点实验室

	Numerical Analysis of Transient Pressure Behaviors with Shale Gas MFHWs Interference
	Gao DP(高大鹏); Liu YW(刘曰武); Wang DG ; Han GF(韩国锋)
通讯作者	Liu, Yuewu(lywu@imech.ac.cn) ; Wang, Daigang(dgwang@pku.edu.cn)
发表期刊	ENERGIES
	2019-01-02
卷号	12 期号:2 页码:21
ISSN	1996-1073
摘要	After the large-scale horizontal well pattern development in shale gas fields, the problem of fast pressure drop and gas well abandonment caused by well interference becomes more serious. It is urgent to understand the downhole transient pressure and flow characteristics of multi-stage fracturing horizontal well (MFHW) with interference. Therefore, the reservoir around the MFHW is divided into three regions: fracturing fracture, Stimulated reservoir volume (SRV), and unmodified matrix. Then, multi-region coupled flow model is established according to reservoir physical property and flow mechanism of each part. The model is numerically solved using the perpendicular bisection (PEBI) grids and the finite volume method. The accuracy of the model is verified by analyzing the measured pressure recovery data of one practical shale gas well and fitting the monitoring data of the later production pressure. Finally, this model is used to analyze the effects of factors, such as hydraulic fractures' connectivity, well distance, the number of neighboring wells and well pattern arrangement, on the transient pressure and seepage characteristics of the well. The study shows that the pressure recovery double logarithmic curves fall in later part when the well is disturbed by a neighboring production well. The earlier and more severe the interference, the sooner the curve falls off and the larger the amplitude shows. If the well distance is closer, and if there are more neighboring wells and interconnected corresponding fracturing segments, the more severe interference appears among the wells. Moreover, the well interference may still exist even without interlinked fractures or SRV. Especially, severe interference will affect production when the hydraulic fractures are connected directly, and the interference is weaker when only SRV induced fracture network combined between wells, which is beneficial to production sometimes. When severe well interference occurs, periodic well shut-in is needed to help restore the reservoir pressure and output capacity. In the meanwhile, the daily output should be controlled reasonably to prolong the stable production time. This research will help to understand the impact of well interference to gas production, and to optimize the well spacing and achieve satisfied performance.
关键词	shale gas multi-stage fracturing horizontal wells well interference transient pressure numerical analysis
DOI	10.3390/en12020262
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000459743700063
关键词[WOS]	WELL ; FLOW ; FRACTURES ; RESPONSES ; CURVES ; MODEL
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
资助项目	Southwest Petroleum University of Open Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation[PLN201711] ; National Natural Science Foundation of China[11702300] ; PetroChina Innovation Fundation[2017D-5007-0208]
项目资助者	Southwest Petroleum University of Open Fund of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; National Natural Science Foundation of China ; PetroChina Innovation Fundation
论文分区	二类
力学所作者排名	1
RpAuthor	Liu, YW ; Wang, DG
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/78506
专题	流固耦合系统力学重点实验室
作者单位	1.{Gao, Dapeng} Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China 2.{Gao, Dapeng、Liu, Yuewu、Han, Guofeng} Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 3.{Gao, Dapeng、Liu, Yuewu} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 4.{Wang, Daigang} Beijing Int Ctr Gas Hydrate, Peking Univ, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Gao DP,Liu YW,Wang DG,et al. Numerical Analysis of Transient Pressure Behaviors with Shale Gas MFHWs Interference[J]. ENERGIES,2019,12,2,:21.
APA	高大鹏,刘曰武,Wang DG,&韩国锋.(2019).Numerical Analysis of Transient Pressure Behaviors with Shale Gas MFHWs Interference.ENERGIES,12(2),21.
MLA	高大鹏,et al."Numerical Analysis of Transient Pressure Behaviors with Shale Gas MFHWs Interference".ENERGIES 12.2(2019):21.

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