陆相致密油藏差异化含油控制因素及分布模式
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摘要
陆相致密油藏含油性表现出分布散、范围宽、差异大的特点,通过对比分析烃源岩、储集层和源储配置3方面差异化含油控制因素,揭示了鄂尔多斯盆地长7致密油藏、准噶尔盆地芦草沟组致密油(页岩油)藏和松辽盆地扶余油层致密油藏差异化分布规律;综合应用孔渗测试、岩心观察、测井解释、动态分析等手段,明确了陆相致密油(页岩油)藏具有岩性控制物性、物性决定含油性的总体规律,优势微相和成岩相的叠合区一般是致密油富集区,并依此建立了中国典型致密油(页岩油)藏差异化含油分布模式,指导了井位部署和水平井轨迹设计,取得了明显实效。
The oil-bearing properties of continental tight oil reservoir are characterized by decentralized distribution, wide range and big differences. Based on the comparative analysis on controlling factors of oil-bearing properties of source rocks, reservoir and the relation between source rock and reservoir, the paper reveals the distribution rules of Chang 7 tight oil in Ordos basin, Lucaogou tight oil in Junggar basin and Fuyu tight oil in Songliao basin. Using porosity and permeability measurement, core observation, logging interpretation and dynamic analysis, the paper identifies the general law of continental tight/shale oil that reservoir physical property is controlled by lithology and the oil-bearing property is controlled by reservoir physical property. The overlapped areas of prevailing microfacies and diagenetic facies are generally the enrichment areas of tight oil, based on which differentiated distribution patterns are established for the typical tight/shale oil in China. The study results can guide well deployment and horizontal well trajectory design and obvious effects have been gained.
The oil-bearing properties of continental tight oil reservoir are characterized by decentralized distribution, wide range and big differences. Based on the comparative analysis on controlling factors of oil-bearing properties of source rocks, reservoir and the relation between source rock and reservoir, the paper reveals the distribution rules of Chang 7 tight oil in Ordos basin, Lucaogou tight oil in Junggar basin and Fuyu tight oil in Songliao basin. Using porosity and permeability measurement, core observation, logging interpretation and dynamic analysis, the paper identifies the general law of continental tight/shale oil that reservoir physical property is controlled by lithology and the oil-bearing property is controlled by reservoir physical property. The overlapped areas of prevailing microfacies and diagenetic facies are generally the enrichment areas of tight oil, based on which differentiated distribution patterns are established for the typical tight/shale oil in China. The study results can guide well deployment and horizontal well trajectory design and obvious effects have been gained.
引文
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[9]窦宏恩马世英.巴肯致密油藏开发对我国开发超低渗透油藏的启示[J].石油钻采工艺,2012,34(2):120-124.DOU Hongen,MA Shiying.Lessons learned from oil production of tight oil reservoirs in Bakken play[J].Oil Drilling&Production Technology,2012,34(2):120-124.
[10]孙雨,邓明,马世忠,等.松辽盆地大安地区扶余油层致密砂分布特征及控制因素[J].石油勘探与开发,2015,42(5):589-597.SUN Yu,DENG Ming,MA Shizhong,et al.Distribution and controlling factors of tight sandstone oil in Fuyu oil layers of Da’an area,Songliao basin,NE China[J].Petroleum Exploration and Development,2015,42(5):589-597.
[11]匡立春,孙中春,欧阳敏,等.吉木萨尔凹陷芦草沟组复杂岩性致密油储层测井岩性识别[J].测井技术,2013,37(6):638-642.KUANG Lichun,SUN Zhongchun,OUYANG Min,et al.Complication lithology logging identification of the Lucaogou tight oil reservoir in Jimusaer depression[J].Well Logging Technology,2013,37(6):638-642.
[12]蒙启安,白雪峰,梁江平,等.松辽盆地北部扶余油层致密油特征及勘探对策[J].大庆石油地质与开发,2014,33(5):23-29.MENG Qi’an,BAI Xuefeng,LIANG Jiangping,et al.Fuyu tight oil characteristics and exploration counter measures in north Songliao basin[J].Petroleum Geology&Oilfield Development in Daqing,2014,33(5):23-29.
[13]吴浩,牛小兵,张春林,等.鄂尔多斯盆地陇东地区长7段致密油储层可动流体赋存特征及影响因素[J].地质科技情报,2015,34(3):120-125.WU Hao,NIU Xiaobing,ZHANG Chunlin,et al.Characteristics and influencing factors of movable fluid in Chang 7 tight oil reservoir in Longdong area,Ordos basin[J].Geological Science and Technology Information,2015,34(3):120-125.
[14]杨华,李士祥,刘显阳.鄂尔多斯盆地致密油、页岩油特征及资源潜力[J].石油学报,2013,34(1):1-11.YANG Hua,LI Shixiang,LIU Xianyang.Characteristics and resource prospects of tight oil and shale oil in Ordos basin[J].Acta Petrolei Sinica,2013,34(1):1-11.
[15]王屿涛,杨作明,马万云,等.吉木萨尔凹陷芦草沟组致密油地球化学特征及成因[J].新疆石油地质,2017,38(4):379-384.WANG Yutao,YANG Zuoming,MA Wanyun,et al.Geochemical characteristics and genesis of tight oil in Lucaogou formation of Jimsar sag[J].Xinjiang Petroleum Geology,2017,38(4):379-384.
[16]闫林,冉启全,高阳,等.吉木萨尔凹陷芦草沟组致密油储层溶蚀孔隙特征及成因机理[J].岩性油气藏,2017,29(3):27-33.YAN Lin,RAN Qiquan,GAO Yang,et al.Characteristics and formation mechanism of dissolved pores in tight oil reservoirs of Lucaogou formation in Jimsar sag[J].Lithologic Reservoirs,2017,29(3):27-33.
[17]宋兴沛,刘洛夫,徐正建,等.鄂尔多斯盆地中西部长7段烃源岩及致密油潜力评价[J].新疆石油地质,2017,38(5):553-558.SONG Xingpei,LIU Luofu,XU Zhengjian,et al.Evaluation of source rocks and tight oil exploration potential of Chang-7 member in central and western Ordos basin[J].Xinjiang Petroleum Geology,2017,38(5):553-558.
[18]陈福利,刘立峰,林旺,等.致密油水平井分级压裂示踪剂监测与评价技术[R].IFEDC-20171477,2017.CHEN Fuli,LIU Lifeng,LIN Wang,et al.Monitoring and evaluation of tracer in fracturing horizontal oil wells[R].IFEDC-20171477,2017.
[19]马克,侯加根,刘钰铭,等.吉木萨尔凹陷二叠系芦草沟组咸化湖混合沉积模式[J].石油学报,2017,38(6):636-648.MA Ke,HOU Jiagen,LIU Yuming,et al.The sedimentary model of saline lacustrine mixed sedimentation in Permian Lucaogou formation,Jimsar sag[J].Acta Petrolei Sinica,2017,38(6):636-648.
[2]邹才能,杨智,张国生,等.常规-非常规油气“有序聚集”理论认识及实践意义[J].石油勘探与开发,2014,41(1):14-27.ZOU Caineng,YANG Zhi,ZHANG Guosheng,et al.Conventional and unconventional petroleum“orderly accumulation”:concept and practical significance[J].Petroleum Exploration and Development,2014,41(1):14-27.
[3]邹才能,陶士振,杨智,等.中国非常规油气勘探与研究新进展[J].矿物岩石地球化学通报,2012,31(4):312-322.ZOU Caineng,TAO Shizhen,YANG Zhi,et al.New advance in unconventional petroleum exploration and research in China[J].Bulletin of Mineralogy,Petrology and Geochemistry,2012,31(4):312-322.
[4]杜金虎,刘合,马德胜,等.试论中国陆相致密油有效开发技术[J].石油勘探与开发,2014,41(2):198-205.DU Jinhu,LIU He,MA Desheng,et al.Discussion on effective development techniques for continental tight oil in China[J].Petroleum Exploration and Development,2014,41(2):198-205.
[5]杜金虎.中国陆相致密油[M].北京:石油工业出版社,2016.DU Jinhu.Continental tight oil in China[M].Beijing:Petroleum Industry Press,2016.
[6]闫林,冉启全,高阳,等.陆相致密油藏差异化含油特征与控制因素[J].西南石油大学学报(自然科学版),2017,39(6):45-54.YAN Lin,RAN Qiquan,GAO Yang,et al.The different oil-bearing characteristic and control factors of continental tight oil[J].Journal of Southwest Petroleum University(Science&Technology Edition),2017,39(6):45-54.
[7]贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350.JIA Chengzao,ZOU Caineng,LI Jianzhong,et al.Assessment criteria,main types,basic features and resource prospects of the tight oil in China[J].Acta Petrolei Sinica,2012,33(3):343-350.
[8]庞正炼,邹才能,陶士振,等.中国致密油形成分布与资源潜力评价[J].中国工程科学,2012,14(7):60-67.PANG Zhenglian,ZOU Caineng,TAO Shizhen,et al.Formation,distribution and resource evaluation of tight oil in China[J].Chinese Engineering Science,2012,14(7):60-67.
[9]窦宏恩马世英.巴肯致密油藏开发对我国开发超低渗透油藏的启示[J].石油钻采工艺,2012,34(2):120-124.DOU Hongen,MA Shiying.Lessons learned from oil production of tight oil reservoirs in Bakken play[J].Oil Drilling&Production Technology,2012,34(2):120-124.
[10]孙雨,邓明,马世忠,等.松辽盆地大安地区扶余油层致密砂分布特征及控制因素[J].石油勘探与开发,2015,42(5):589-597.SUN Yu,DENG Ming,MA Shizhong,et al.Distribution and controlling factors of tight sandstone oil in Fuyu oil layers of Da’an area,Songliao basin,NE China[J].Petroleum Exploration and Development,2015,42(5):589-597.
[11]匡立春,孙中春,欧阳敏,等.吉木萨尔凹陷芦草沟组复杂岩性致密油储层测井岩性识别[J].测井技术,2013,37(6):638-642.KUANG Lichun,SUN Zhongchun,OUYANG Min,et al.Complication lithology logging identification of the Lucaogou tight oil reservoir in Jimusaer depression[J].Well Logging Technology,2013,37(6):638-642.
[12]蒙启安,白雪峰,梁江平,等.松辽盆地北部扶余油层致密油特征及勘探对策[J].大庆石油地质与开发,2014,33(5):23-29.MENG Qi’an,BAI Xuefeng,LIANG Jiangping,et al.Fuyu tight oil characteristics and exploration counter measures in north Songliao basin[J].Petroleum Geology&Oilfield Development in Daqing,2014,33(5):23-29.
[13]吴浩,牛小兵,张春林,等.鄂尔多斯盆地陇东地区长7段致密油储层可动流体赋存特征及影响因素[J].地质科技情报,2015,34(3):120-125.WU Hao,NIU Xiaobing,ZHANG Chunlin,et al.Characteristics and influencing factors of movable fluid in Chang 7 tight oil reservoir in Longdong area,Ordos basin[J].Geological Science and Technology Information,2015,34(3):120-125.
[14]杨华,李士祥,刘显阳.鄂尔多斯盆地致密油、页岩油特征及资源潜力[J].石油学报,2013,34(1):1-11.YANG Hua,LI Shixiang,LIU Xianyang.Characteristics and resource prospects of tight oil and shale oil in Ordos basin[J].Acta Petrolei Sinica,2013,34(1):1-11.
[15]王屿涛,杨作明,马万云,等.吉木萨尔凹陷芦草沟组致密油地球化学特征及成因[J].新疆石油地质,2017,38(4):379-384.WANG Yutao,YANG Zuoming,MA Wanyun,et al.Geochemical characteristics and genesis of tight oil in Lucaogou formation of Jimsar sag[J].Xinjiang Petroleum Geology,2017,38(4):379-384.
[16]闫林,冉启全,高阳,等.吉木萨尔凹陷芦草沟组致密油储层溶蚀孔隙特征及成因机理[J].岩性油气藏,2017,29(3):27-33.YAN Lin,RAN Qiquan,GAO Yang,et al.Characteristics and formation mechanism of dissolved pores in tight oil reservoirs of Lucaogou formation in Jimsar sag[J].Lithologic Reservoirs,2017,29(3):27-33.
[17]宋兴沛,刘洛夫,徐正建,等.鄂尔多斯盆地中西部长7段烃源岩及致密油潜力评价[J].新疆石油地质,2017,38(5):553-558.SONG Xingpei,LIU Luofu,XU Zhengjian,et al.Evaluation of source rocks and tight oil exploration potential of Chang-7 member in central and western Ordos basin[J].Xinjiang Petroleum Geology,2017,38(5):553-558.
[18]陈福利,刘立峰,林旺,等.致密油水平井分级压裂示踪剂监测与评价技术[R].IFEDC-20171477,2017.CHEN Fuli,LIU Lifeng,LIN Wang,et al.Monitoring and evaluation of tracer in fracturing horizontal oil wells[R].IFEDC-20171477,2017.
[19]马克,侯加根,刘钰铭,等.吉木萨尔凹陷二叠系芦草沟组咸化湖混合沉积模式[J].石油学报,2017,38(6):636-648.MA Ke,HOU Jiagen,LIU Yuming,et al.The sedimentary model of saline lacustrine mixed sedimentation in Permian Lucaogou formation,Jimsar sag[J].Acta Petrolei Sinica,2017,38(6):636-648.