水平井大岩心水驱效果的物理模拟实验及数值模拟研究
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摘要
针对小岩心物理模拟实验不能模拟水平井井网方式对水驱效果影响的问题,开展了模拟储层条件下的能在高温、高压下通过改变管线不同切口变换井网方式的水平井大岩心物理模拟室内试验,研究了水平井-水平井交错井网、水平井-水平井平行井网、直井-水平井交错井网、直井-水平井平行井网、直井-直井井网这5种不同的水平井井网类型的水驱油规律及剩余油分布特征,并建立了数值模拟预测模型进行对比、验证。结果表明:在渗透率级别相同的情况下,对比5种井网类型,水平井-水平井交错井网驱油效率最高,剩余油分散。水平井大岩心物模实验所得出的对水平井井网和直井井网的对比分析结论对指导油田现场井网的部署具有重要意义。
To solve the problem of the effect of horizontal well pattern on the water flooding effect,a simulationmodel of large core horizontal well under simulated high temperature and high pressure under different reservoir conditions test was carried out.Five different levels of injection-production patterns of water flooding and pattern of remaining oil distribution in well pattern including horizontal wells-horizontal wells staggered well pattern,horizontal wells-horizontal wells parallel well,vertical wells-horizontal wells staggered well pattern,vertical wells-horizontal wells parallel well,vertical wells-vertical wells were studied.Based on the laboratory experiments,a numerical simulation model was established to compare and verify.The results show that,in the case of the same permeable grade,the oil displacement efficiency of the horizontal well-staggered horizontal well pattern is higher than that of the horizontal well-staggered horizontal wells,and the remaining oil is dispersed.The comparison and analysis of horizontal well pattern and vertical well pattern obtained by the experiment of large well core in horizontal well is of great significance to guide the deployment of oil field well pattern.
To solve the problem of the effect of horizontal well pattern on the water flooding effect,a simulationmodel of large core horizontal well under simulated high temperature and high pressure under different reservoir conditions test was carried out.Five different levels of injection-production patterns of water flooding and pattern of remaining oil distribution in well pattern including horizontal wells-horizontal wells staggered well pattern,horizontal wells-horizontal wells parallel well,vertical wells-horizontal wells staggered well pattern,vertical wells-horizontal wells parallel well,vertical wells-vertical wells were studied.Based on the laboratory experiments,a numerical simulation model was established to compare and verify.The results show that,in the case of the same permeable grade,the oil displacement efficiency of the horizontal well-staggered horizontal well pattern is higher than that of the horizontal well-staggered horizontal wells,and the remaining oil is dispersed.The comparison and analysis of horizontal well pattern and vertical well pattern obtained by the experiment of large well core in horizontal well is of great significance to guide the deployment of oil field well pattern.
引文
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[2]吴聃,鞠斌山,陈常红,等.基于微观驱替实验的剩余油表征方法研究[J].中国科技论文,2015,10(23):2707-2710.WU Dan,JU Binshan,CHEN Changhong,et al.Research on characterization method for residual oil based on microscopic displacement experiments[J].China Sciencepaper,2015,10(23):2707-2710.(in Chinese)
[3]聂仁仕,王苏冉,贾永禄,等.多段压裂水平井负表皮压力动态特征[J].中国科技论文,2015,10(9)1027-1031.NIE Renshi,WANG Suran,JIA Yonglu,et al.Negative skip pressure dynamic characteristics of multiple fractured horizontal wells[J].China Sciencepaper,2015,10(9):1027-1031.(in Chinese)
[4]姜洪福,隋军,庞彦明,等.特低丰度油藏水平井开发技术研究与应用[J].石油勘探与开发,2006,33(3):364-368.JIANG Hongfu,SUI Jun,PANG Yanming,et al.Technique of exceptionally low abundance oil reservoir development by horizontal wells and its application[J].Petroleum Exploration and Development,2006,33(3):364-368.(in Chinese)
[5]HAO Mingqiang,HU Yongle,LIU Xiong,et al.Predicting and optimizing the productivity of multiple transverse fractured horizontal wells in ultra-low permeability reservoirs[C]//IPTC 2013:International Petroleum Technology Conference.Beijing:EAGE,2013:11230-11234.
[6]岳大力,吴胜和,温立峰,等.点坝内部构型控制的剩余油分布物理模拟[J].中国科技论文,2013,8(5):473-476.YUE Dali,WU Shenghe,WEN Lifeng,et al.Physical simulation of remaining oil distribution controlled by reservoir architecture within point-bar of meandering river[J].China Sciencepaper,2013,8(5):473-476.(in Chinese)
[7]MOHAMMED M,BABADAGLI T.Efficiency of solvent retrieval during steam-over-solvent injection in fractures reservoirs(SOS-FR)method:core scale experimentation[C]//SPE Heavy Oil Conference-Canada.Calgary,Alberta,Canada:SPE,2013:SPE-165528-MS.
[8]殷代印,季菊香,王国锋新站油田井网加密调整方案的数值模拟[J].石油地质与工程,2008,22(2):57-59.YIN Daiyin,JI Juxiang,WANG Guofeng.Numerical simulation of well pattern thickening and modification plan in Xinzhan oilfield[J].Petroleum Geology and Engineering,2008,22(2):57-59.(in Chinese)
[9]BROWN M,OZKAN E,RAGHAVAN R,et al.Practical solutions for pressure-transient responses of fractured horizontal wells in unconventional shalel reservoirs[J].SPE,2011,14(6):SPE-125043-PA.
[10]卢时林.利用水平井技术提高欢西油田稠油储量动用程度研究[J].特种油气藏,2011,18(3):116-119.LU Shilin.Improve the producing degree of heavy oil reserves in the Huanxi oilfield by horizontal well technology[J].Special Oil and Gas Reservoirs,2011,18(3):116-119.(in Chinese)
[11]彭彩珍,孟立新,郭平,等.三维物理模型驱油实验模拟装置研制与应用[J].石油实验地质,2013,35(5):570-573.PENG Caizhen,MENG Lixin,GUO Ping,et al.Development and application of modeling device for oil/water displacement by 3dphysical model[J].Petroleum Geology&Experiment.2013,35(5):570-573.(in Chinese)
[12]关文龙,万仲谋,陈永忠.三维物理模拟试验装备及试验技术[J].石油仪器,1997,11(5):27-30.GUAN Wenlong,WAN Zhongmou,CHEN Yongzhong.3D physical-modeling experimental equipments and experimental techniques[J].Petroleum Instruments,1997,11(5):27-30.(in Chinese)
[13]刘其成,张勇,张鹰.多功能高温高压三维比例物理模拟试验装置[J].石油仪器,2006,20(1):17-20.LIU Qicheng,ZHANG Yong,ZHANG Ying.High temperature and pressure 3D scaled multi-function physical modeling experimental equipment[J].Petroleum Instruments,2006,20(1):17-20.(in Chinese)
[14]刘喆,崔英怀,杨传宏.非均质组合模型水驱油试验研究[J].吐哈油气,2009,14(1):60-62.LIU Zhe,CUI Yinghuai,YANG Chuanhong.Study on water-drive oil test of heterogeneous combination modeling.[J].Tuha Oil and GAS,2009,14(1):60-62.(in Chinese)
[15]李劲峰,曲志浩.用模型组合实验研究注水油层驱油效率的变化[J].西北大学学报(自然科学版),2000,30(3):247-250.LI Jinfeng,QU Zhihao.A study on the change of efficiency in water flood reservoirs by using multimodel experiment[J].Journal of Northwest University(Natural Science Edition),2000,30(3):247-250.(in Chinese)
[16]国家石油和化学工业局,SY/T 5345-1999.油水相对渗透率测定[S].石油工业出版社,1999.State Bureau of Petroleum and Chemical Industryies,SY/T 5345-1999.Oil-water relative permeability measurement[S].Petroleum Industry Press,1999.(in Chinese)
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[18]高敏,贾善坡,龚俊,等.含夹层盐岩地下储气库极限运行压力数值模拟研究[J]中国科技论文,2016,11(1):29-34.GAO Min,JIA Shanpo,GONG Jun,et al,Numerical evaluation of the operating pressure limitation for underground gas storage with salt rock interlayer[J].China Sciencepaper,2016,11(1):29-34.(in Chinese)
[19]王威.渤海南部渤中A油田储层三维地质建模与油藏数值模拟一体化研究[D].成都:西南石油大学,2013.WANG Wei.Integration research on the 3Dgeological modeling and reservoir simulation of BZ A oilfield[D].Chengdu:Southwest Petroleum University,2013.(in Chinese)