致密油体积压裂水平井流固全耦合流动模拟

doi:10.13722/j.cnki.jrme.2018.0293

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Abstract In terms of the characteristic of complex fracture network and stress sensitivity for stimulated reservoir volume(SRV)-fractured horizontal wells in tight oil reservoirs，based on the effective stress principle and flowing features of stimulated areas with multi-porosity media，the fluid-solid coupling mathematical model considering the system characteristics of the matrix，natural fractures and network fractures is presented. The fully coupling numerical solution of the stress field and flow field is solved by the finite element method. The accuracy of this model is verified by comparing the existing software solution，analyzing the difference of the production performance of SRV-fractured horizontal well under the condition of the non-coupled and full-coupled model，and revealing the fluid flow characteristics and productivity influence factors of tight oil. The results show that for full-coupled model，the production rate of SRV-fractured horizontal well is large but declines quickly. There is an economically optimal reservoir fracturing parameter. And the development pattern of "well factory" involving horizontal wells with large scale SRV fracturing is more favorable for enhanced oil recovery(EOR). This study could provide a certain theoretical and technical guidance for the optimization design of horizontal wells with SRV fracturing and efficient development of tight oil reservoirs.

Key words： rock mechanics tight oil reservoir SRV-fractured horizontal well multi-porosity media fluid-solid fully coupling flow simulation

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	Articles by authors
	REN Long1
	2
	SU Yuliang3
	ZHOU Desheng1
	2
	ZHAN Shiyuan3
	JING Cheng1
	2
	SUN Jian4

Cite this article:

REN Long1,2,SU Yuliang3, et al. Fluid-solid fully coupling flow simulation for SRV-fractured horizontal wells in tight oil reservoirs[J]. , 2019, 38(S1): 2614-2624.

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http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2018.0293 OR http://rockmech.whrsm.ac.cn/EN/Y2019/V38/IS1/2614

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