考虑启动压力和应力敏感效应的低渗、特低渗油藏数值模拟研究

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (0 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to reflect the influences of starting pressure and stress sensitivity on the development law of low-permeability reservoirs，the following researches are conducted. Firstly，the dynamics models of threshold pressure gradient and dynamic permeability are established based on the experimental results of threshold pressure gradient and stress sensitivity effects. Based on this，the mathematical model of water-flooding in low-permeability reservoir with considering the starting pressure and stress sensitivity is established according to the law of conservation of mass and permeation fluid mechanics theories. Also，the corresponding numerical simulation software is developed. Then，the software is used to study the influences of different features on the seepage field and development law，and the effects of starting pressure and stress sensitivity on development effect. At last，the influences of advanced water flooding，increasing injection-production ratio and increasing injection-production rate on recovery are investigated by numerical simulation method. Simultaneously，the best injection parameter is optimized. The results show that：(1) Threshold pressure gradient directly results in the lower recovery of low-permeability reservoirs. Stress sensitivity indirectly affects the recovery by increasing the threshold pressure gradient. (2) All the measures of advanced water flooding，increasing injection-production ratio and increasing injection-production rate can enhance oil recovery of low-permeability reservoirs. And the order of the enhancing extent is：advanced water flooding＞increasing injection-production ratio＞increasing injection-production rate. (3) The optimal time of advanced water flooding is 100 d，the optimal value of injection-production ratio is 1.1∶1，and the optimal value of injection-production rate is 0.000 15～0.000 25 PV/d.

Key words： petroleum engineering low-permeability reservoir threshold pressure gradient stress sensitivity numerical simulation mathematical model

Received: 19 July 2012

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/3317

[1]	李洋，雷群，刘先贵，等. 微尺度下的非线性渗流特征[J]. 石油勘探与开发，2011，38(3)：336-340.(LI Yang，LEI Qun，LIU Xiangui，et al. Characteristics of micro scale nonlinear filtration[J]. Petroleum Exploration and Development，2011，38(3)：336-340.(in Chinese))
[2]	李松泉，程林松，李秀生，等. 特低渗透油藏非线性渗流模型[J]. 石油勘探与开发，2008，35(5)：606-612.(LI Songquan，CHENG Linsong，LI Xiusheng，et al. Nonlinear seepage flow models of ultra-low permeability reservoirs[J]. Petroleum Exploration and Development，2008，35(5)：606-612.(in Chinese))
[3]	熊伟，雷群，刘先贵，等. 低渗透油藏拟启动压力梯度[J]. 石油勘探与开发，2009，36(2)：232-236.(XIONG Wei，LEI Qun，LIU Xiangui，et al. Pseudo threshold pressure gradient to flow for low permeability reservoirs[J]. Petroleum Exploration and Development，2009，36(2)：232-236.(in Chinese))
[4]	LEI Q，XIONG W，YUAN J R，et al. Behavior of flow through low-permeability reservoirs[C]. Europec/EAGE Conference and Exhibition. [S. l.]：[s. n.]，2008：1-7. " target="_blank">
[5]	杨仁锋，姜瑞忠，刘世华，等. 特低渗透油藏非线性渗流数值模拟[J]. 石油学报，2011，32(2)：299-306.(YANG Renfeng，JIANG Ruizhong，LIU Shihua，et al. Numerical simulation of nonlinear seepage in ultra-low permeability reservoirs[J]. Acta Petrolei Sinica，2011，32(2)：299-306.(in Chinese))
[6]	邓英尔，刘慈群. 低渗油藏非线性渗流规律数学模型及其应用[J]. 石油学报，2001，22(4)：72-77.(DENG Yinger，LIU Ciqun. Mathematical model of nonlinear flow law in low permeability porous media and its application[J]. Acta Petrolei Sinica，2001，22(4)：72-77.(in Chinese))
[7]	杨正明，于荣泽，苏致新，等. 特低渗透油藏非线性渗流数值模拟[J]. 石油勘探与开发，2010，37(1)：94-98.(YANG Zhengming，YU Rongze，SU Zhixin，et al. Numerical simulation of the nonlinear flow in ultra-low permeability reservoirs[J]. Petroleum Exploration and Development，2010，37(1)：94-98.(in Chinese)) " target="_blank">
[8]	尹芝林，孙文静，姚军. 动态渗透率三维油水两相低渗透油藏数值模拟[J]. 石油学报，2011，32(1)：117-121.(YIN Zhilin，SUN Wenjing，YAO Jun. Numerical simulation of the 3D oil-water phase dynamic permeability for low-permeability reservoirs[J]. Acta Petrolei Sinica，2011，32(1)：117-121.(in Chinese))
[9]	韩洪宝，程林松，张明禄，等. 特低渗油藏考虑启动压力梯度的物理模拟及数值模拟方法[J]. 中国石油大学学报：自然科学版，2004，28(6)：49-53.(HAN Hongbao，CHENG Linsong，ZHANG Minglu，et al. Physical simulation and numerical simulation of ultra-low permeability reservoir in consideration of starting pressure gradient[J]. Journal of China University of Petroleum：Natural Science，2004，28(6)：49-53.(in Chinese))
[10]	程远方，智勤功，赵益忠，等. 应力敏感油藏压裂井产量动态规律研究[J]. 应用基础与工程科学学报，2010，18(2)：291-298.(CHENG Yuanfang，ZHI Qingong，ZHAO Yizhong，et al. The research on stress sensitive reservoir fracture well production dynamic rule[J]. Journal of Basic Science and Engineering，2010，18(2)：291-298.(in Chinese))
[11]	于忠良，熊伟，高树生，等. 致密储层应力敏感性及其对油田开发的影响[J]. 石油学报，2007，28(4)：96-98.(YU Zhongliang，XIONG Wei，GAO Shusheng，et al. Stress sensitivity of tight reservoir and its influence on oilfield development[J]. Acta Petrolei Sinica，2007，28(4)：96-98.(in Chinese)) " target="_blank">
[12]	刘仁静，刘慧卿，张红玲，等. 低渗透储层应力敏感性及其对石油开发的影响[J]. 岩石力学与工程学报，2011，30(增1)：2 697-2 702. (LIU Renjing，LIU Huiqing，ZHANG Hongling，et al. Study of stress sensitivity and its influence on oil development in low permeability reservoir[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(Supp.1)：2 697-2 702.(in Chinese))
[13]	郝斐，程林松，李春兰，等. 特低渗透油藏启动压力梯度研究[J]. 西南石油学院学报，2006，28(6)：29-32.(HAO Fei，CHENG Linsong，LI Chunlan，et al. Study on threshold pressure gradient in ultra-low permeability reservoir[J]. Journal of Southwest Petroleum Institute，2006，28(6)：29-32.(in Chinese))
[14]	吕成远，王建，孙志刚. 低渗透砂岩油藏渗流启动压力梯度实验研究[J]. 石油勘探与开发，2002，29(2)：86-89.(LU Chengyuan， WANG Jian，SUN Zhigang. An experimental study on starting pressure gradient of fluids flow in low permeability sandstone porous media[J]. Petroleum Exploration and Development，2002，29(2)： 86-89.(in Chinese))
[15]	汪全林，唐海，吕栋梁，等. 低渗透油藏启动压力梯度实验研究[J]. 油气地质与采收率，2011，18(1)：97-100.(WANG Quanlin，TANG Hai，LU Dongliang，et al. An experimental study on threshold pressure gradient in low permeability reservoir[J]. Petroleum Geology and Recovery Efficiency，2011，18(1)：97-100.(in Chinese)) " target="_blank">
[16]	王道富，李忠兴，赵继勇，等. 低渗透油藏超前注水理论及其应用[J]. 石油学报，2007，28(6)：78-83.(WANG Daofu，LI Zhongxing，ZHAO Jiyong，et al. Advance water-flooding theory for low-permeability reservoirs and its application[J]. Acta Petrolei Sinica，2007，28(6)：78-83.(in Chinese)) " target="_blank">
[17]	车起君，雷均安，冉玉霞，等. 超前注水提高特低渗透油田开发效果[J]. 大庆石油地质与开发，2003，22(1)：20-22.(CHE Qijun，LEI Jun?an，RAN Yuxia，et al. Effects of advanced water flooding in extra-low permeability oilfield development[J]. Petroleum Geology and Oilfield Development in Daqing，2003，22(1)：20-22.(in Chinese)) " target="_blank">