杏北低渗透油藏应力敏感性评价
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摘要
通过对大庆外围低渗透岩样的应力敏感性实验数据分析发现,低渗透率油层应力敏感性受储层本身渗透率和有效应力影响较大,应用乘幂关系可较好地拟合渗透率与有效压力关系。根据实验分析推导出受应力敏感性影响下的渗透率与井底压力关系式、油井产量与井底压力关系式,绘制了杏北低渗透油层应力敏感性曲线。通过数值模拟研究超前注水技术开发低渗透油藏的效果并优化相关技术指标。
Through the analysis of stress sensitivity data of low permeability rock samples in the periphery of Daqing, it is found that the stress sensitivity of low permeability oil layer is greatly affected by permeability and effective stress, and the power relation can be used to better fit the relationship between permeability and effective pressure. According to the experimental analysis, the relationship between permeability and bottomhole pressure, oil well production and bottomhole pressure under the influence of stress sensitivity is derived, and the corresponding stress sensitivity map of low permeability reservoir in Daqing is drawn.Through numerical simulation, the effect of advanced water injection technology on the development of low permeability reservoirs was studied and relevant technical indicators were optimized.
Through the analysis of stress sensitivity data of low permeability rock samples in the periphery of Daqing, it is found that the stress sensitivity of low permeability oil layer is greatly affected by permeability and effective stress, and the power relation can be used to better fit the relationship between permeability and effective pressure. According to the experimental analysis, the relationship between permeability and bottomhole pressure, oil well production and bottomhole pressure under the influence of stress sensitivity is derived, and the corresponding stress sensitivity map of low permeability reservoir in Daqing is drawn.Through numerical simulation, the effect of advanced water injection technology on the development of low permeability reservoirs was studied and relevant technical indicators were optimized.
引文
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[14]黄小亮，唐海，吕栋梁，等.油藏极限含水率确定新方法[J].新疆石油地质，2008,29(5):626-630.Huang X L,Tang H,LüD L,et al.A new method for ultimate water cut determination[J].Xinjiang Petroleum Geology,2008,29(5):626-630.
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[16]赵春鹏，岳湘安.特低渗透油藏超前注水长岩心实验研究[J].西南石油大学学报(自然科学版)，2011,33(3):105-108.Zhao C P,Yue X A.Long-core experimental study on advance water injection of extralow permeability reservoir[J].Journal of Southwest Petroleum University(Science&Technology Edition),2011,33(3):105-108.
[17]张烈辉，曾杨，周志平，等.超低渗油藏超前注水井网适应性研究[J].西南石油大学学报(自然科学版)，2011,3(4):26-29.Zhang L H,Zeng Y,Zhou Z P,et al.Research on advanced water injection well pattern adaptability in ultra-low permeability reservoir[J].Journal of Southwest Petroleum University(Science&Technology Edition),2011,3(4):26-29.
[18]史成恩，熊维亮，朱圣举.创新油田开发技术提高特低渗透油田开发效果[C]//中国石油长庆油田分公司勘探开发研究院.鄂尔多斯盆地油气勘探开发论文集(1990-2000)，北京：北京石油工业出版社，2005.
[19]殷代印，巩象珠.特低渗透油藏超前注水合理技术参数实验研究[J].石油化工高等学校学报，2016,29(4):19-24.Yin D Y,Gong X Z. Research of the advanced water injection reasonable technical parameters in ultra-low permeability reservoir[J].Journal of Petrochemical Universities,2016,29(4):19-24.
[20]孔垂显.玛18井区低渗透异常高压油藏开发参数研究[J].特种油气藏，2018,25(5):104-108.Kong C X.Development parameters of low-permeability abnormal high-pressure reservoir in well Ma18[J].Special Oil&Gas Reservoirs,2018,25(5):104-108.
[2]李道品.低渗透砂岩油田开发[M].北京：石油工业出版社，1997:33-73.
[3]李传亮.油藏工程原理[M].北京：石油工业出版社，2005:87-88.
[4] Alexander R C.Stress-dependent permeability tight gas reservoirs[C].SPE Annual Technical Conference and Exhibition,UAE:Dubai,2016:26-28:.
[5]王学武.大庆外围特低渗透储层微观孔隙结构及渗流机理研究[D].廊坊：中国科学院研究生院，2010.
[6]黄小亮，李继强，雷登生，等.应力敏感性对低渗透气井产能的影响[J].断块油气田，2004,21(6):786-789.Huang X L,Li J Q,Lei D S,et al.Influence of stress sensitivity on gas well productivity for low permeability gas reservoir[J].Fault-Block Oil&Gas Field,2004,21(6):786-789.
[7]张烨，潘林华，周彤，等.龙马溪组页岩应力敏感性实验评价[J].科学技术与工程，2015,15(8):37-41.Zhang Y,Pan L H,Zhou T,et al. Experimental study of stress sensitivity of shales in Longmaxi formation[J]. Science Technology and Engineering,2005,15(8):37-41.
[8]祝春生，刘仁静.低渗透储层应力敏感性研究[J].科学技术与工程，2012,12(24):5997-6002.Zhu C S,Liu R J.The study on stress sensitivity in low permeability reservoir[J].Science Technology&Engineering,2012,12(24):5997-6002.
[9]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):95-98.Yu Z L,Xiong W,Gao S S,et al. Stress sensitivity of tight reservoir and its influence on oilfield development[J]. Acta Petrolei Sinica,2007,28(4):95-98.
[10]丁景辰.稠油油藏应力敏感性特征及其对单井产能的影响[J].科学技术与工程，2017,17(14):186-190.Ding J C. Stress sensitivity of heavy oil reservoir and its influence on well productivity[J]. Science Technology&Engineering,2017,17(14):186-190.
[11]阮敏，王连刚.低渗透油田开发与压敏效应[J].石油学报，2002,23(3):73-76.Ruan M,Wang L G.Low-permeability oilfield development and pressure sensitive effect[J].Acta Petrolei Sinica,2002,23(3):73-76.
[12]胡文瑞，魏漪，鲍敬伟.中国低渗透油气藏开发理论与技术进展[J].石油勘探与开发，2018,45(4):646-656.Hu W R,Wei Y,Bao J W.Development of the theory and technology for low permeability reservoirs in China[J].Petroleum Exploration and Development,2018,45(4):646-656.
[13] Wang Y L,Lang F. The study of hydraulic fracturing expert system in low permeable and complex reservoirs[C]. SPE Annual Technical Conference and Exhibition,2004,September,Houston,Texas,26-29.
[14]黄小亮，唐海，吕栋梁，等.油藏极限含水率确定新方法[J].新疆石油地质，2008,29(5):626-630.Huang X L,Tang H,LüD L,et al.A new method for ultimate water cut determination[J].Xinjiang Petroleum Geology,2008,29(5):626-630.
[15]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):78-81.Wang D F,Li Z X,Zhao J Y,et al.Advance water-flooding theory for low-permeability reservoirs and its application[J].Acta Petrolei Sinica,2007,28(6):79-82.
[16]赵春鹏，岳湘安.特低渗透油藏超前注水长岩心实验研究[J].西南石油大学学报(自然科学版)，2011,33(3):105-108.Zhao C P,Yue X A.Long-core experimental study on advance water injection of extralow permeability reservoir[J].Journal of Southwest Petroleum University(Science&Technology Edition),2011,33(3):105-108.
[17]张烈辉，曾杨，周志平，等.超低渗油藏超前注水井网适应性研究[J].西南石油大学学报(自然科学版)，2011,3(4):26-29.Zhang L H,Zeng Y,Zhou Z P,et al.Research on advanced water injection well pattern adaptability in ultra-low permeability reservoir[J].Journal of Southwest Petroleum University(Science&Technology Edition),2011,3(4):26-29.
[18]史成恩，熊维亮，朱圣举.创新油田开发技术提高特低渗透油田开发效果[C]//中国石油长庆油田分公司勘探开发研究院.鄂尔多斯盆地油气勘探开发论文集(1990-2000)，北京：北京石油工业出版社，2005.
[19]殷代印，巩象珠.特低渗透油藏超前注水合理技术参数实验研究[J].石油化工高等学校学报，2016,29(4):19-24.Yin D Y,Gong X Z. Research of the advanced water injection reasonable technical parameters in ultra-low permeability reservoir[J].Journal of Petrochemical Universities,2016,29(4):19-24.
[20]孔垂显.玛18井区低渗透异常高压油藏开发参数研究[J].特种油气藏，2018,25(5):104-108.Kong C X.Development parameters of low-permeability abnormal high-pressure reservoir in well Ma18[J].Special Oil&Gas Reservoirs,2018,25(5):104-108.
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