深层天然气资源评价方法
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摘要
通过统计中国365个深度超过3 500 m的天然气藏的储量丰度,确定了储量丰度的7种主要影响因素,即储层岩性、有效储层厚度、孔隙度、含气饱和度、埋藏深度、圈闭类型和所属盆地。以此为基础,建立了计算资源丰度的多因素类比模型。此外,基于资源评价刻度区数据库和各油田历年的探井钻探成功率数据,类比得到评价单元的圈闭面积系数、钻探成功率、有效圈闭面积和圈闭含油面积系数等关键参数,并估算出评价单元的含油气面积。应用案例示范了新模型的使用流程和评价效果,验证了新模型的适用性和有效性。新模型的提出可以对现阶段中国深层油气资源潜力评价起到积极的推动作用。
In this study,a statistical analysis has been conducted on the reserve abundance of 365 natural gas reservoirs of more than3500 m deep in China,which is mainly influenced by seven factors,i.e.,reservoir lithology,effective reservoir thickness,porosity,gas saturation,burial depth,trap type and basin type.Accordingly,a multi-factor analog model is established to calculate out reserve abundance.In addition,based on the China's database of calibrated areas for petroleum resource assessment and the drilling success rate of exploration wells in each oilfield over the years,the key parameters of assessment units are obtained using an analogy method,such as trap area coefficient,drilling success rate,effective trap area and oil bearing area coefficient of trap,so as to estimate the oil bearing area of each assessment unit.Finally,the operation flow and assessment effect of this method are presented based on an application case,thus verifying its applicability and effectiveness.The proposal of this new method plays an active role in the potential evaluation of deep hydrocarbon resources at the present stage in China.
In this study,a statistical analysis has been conducted on the reserve abundance of 365 natural gas reservoirs of more than3500 m deep in China,which is mainly influenced by seven factors,i.e.,reservoir lithology,effective reservoir thickness,porosity,gas saturation,burial depth,trap type and basin type.Accordingly,a multi-factor analog model is established to calculate out reserve abundance.In addition,based on the China's database of calibrated areas for petroleum resource assessment and the drilling success rate of exploration wells in each oilfield over the years,the key parameters of assessment units are obtained using an analogy method,such as trap area coefficient,drilling success rate,effective trap area and oil bearing area coefficient of trap,so as to estimate the oil bearing area of each assessment unit.Finally,the operation flow and assessment effect of this method are presented based on an application case,thus verifying its applicability and effectiveness.The proposal of this new method plays an active role in the potential evaluation of deep hydrocarbon resources at the present stage in China.
引文
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[6]罗晓容,张立宽,付晓飞,等.深层油气成藏动力学研究进展[J].矿物岩石地球化学通报,2016,35(5):876-889.LUO Xiaorong,ZHANG Likuan,FU Xiaofei,et al.Advances in dynamics of petroleum migration and accumulation in deep basins[J].Bulletin of Mineralogy,Petrology and Geochemistry,2016,35(5):876-889.
[7]鲁雪松,赵孟军,刘可禹,等.库车前陆盆地深层高效致密砂岩气藏形成条件与机理[J].石油学报,2018,39(4):365-378.LU Xuesong,ZHAO Mengjun,LIU Keyu,et al.Forming condition and mechanism of highly effective deep tight sandstone gas reservoir in Kuqa foreland basin[J].Acta Petrolei Sinica,2018,39(4):365-378.
[8]朱光有,杜德道,陈玮岩,等.塔里木盆地西南缘古老层系巨厚黑色泥岩的发现及勘探意义[J].石油学报,2017,38(12):1335-1342.ZHU Guangyou,DU Dedao,CHEN Weiyan,et al.The discovery and exploration significance of the old thick black mudstones in the southwest margin of Tarim Basin[J].Acta Petrolei Sinica,2017,38(12):1335-1342.
[9]中华人民共和国国土资源部.石油天然气储量计算规范:DZ/T0217—2005[S].北京:中国标准出版社,2005.Ministry of Land and Resources of the People’s Republic of China.Regulation of petroleum reserves estimation:DZ/T 0217-2005[S].Beijing:China Standards Press,2005.
[10]盛秀杰,金之钧,肖晔.区带勘探中的油气资源评价方法[J].石油与天然气地质,2017,38(5):983-992.SHENG Xiujie,JIN Zhijun,XIAO Ye.Petroleum resources assessment methodology in play exploration stages[J].Oil &Gas Geology,2017,38(5):983-992.
[11]SCHMOKER J W.Resource assessment perspectives for unconventional gas systems[J].AAPG Bulletin,2002,86(11):1993-1999.
[12]ATTANASI D,CHARPENTIER R R.Comparison of two probability distributions used to model sizes of undiscovered oil and gas accumulations:does the tail wag the assessment[J].Mathematical Geology,2002,34(6):767-777.
[13]KLETT T R,GAUTIER D L,AHLBRANDT T S.An evaluation of the U.S.geological survey world petroleum assessment[J].AAPG Bulletin,2005,89(8):1033-1042.
[14]王社教,蔚远江,郭秋麟,等.致密油资源评价新进展[J].石油学报,2014,35(6):1095-1105.WANG Shejiao,YU Yuanjiang,GUO Qiulin,et al.New advance in resources evaluation of tight oil[J].Acta Petrolei Sinica,2014,35(6):1095-1105.
[15]郭秋麟,陈宁生,刘成林,等.油气资源评价方法研究进展与新一代评价软件系统[J].石油学报,2015,36(10):1305-1314.GUO Qiulin,CHEN Ningsheng,LIU Chenglin,et al.Research advance of hydrocarbon resource assessment method and a new assessment software system[J].Acta Petrolei Sinica,2015,36(10):1305-1314.
[16]郭秋麟,谢红兵,黄旭楠,等.油气资源评价方法体系与应用[M].北京:石油工业出版社,2016.GUO Qiulin,XIE Hongbing,HUANG Xu’nan,et al.Methodologies and application of hydrocarbon resource assessment[M].Beijing:Petroleum Industry Press,2016.
[17]柳广第,刘成林,郭秋麟.油气资源评价[M].北京:石油工业出版社,2018.LIU Guangdi,LIU Chenglin,GUO Qiulin.Hydrocarbon resource assessment[M].Beijing:Petroleum Industry Press,2018.
[18]宋振响,陆建林,周卓明.常规油气资源评价方法研究进展与发展方向[J].中国石油勘探,2017,22(3):21-31.SONG Zhenxiang,LU Jianlin,ZHOU Zhuoming,et al.Research progress and future development of assessment methods for conventional hydrocarbon resources[J].China Petroleum Exploration,2017,22(3):21-31.
[19]CHEN Zhuoheng,OSADETZ K G.Undiscovered petroleum accumulation mapping using model-based stochastic simulation[J].Mathematical Geology,2006,38(1):1-16.
[20]LEE P J.Statistical methods for estimating petroleum resources[M].Oxford:Oxford University Press,2008:234.
[21]SALAZAR J,MCVAY D A,LEE W J.Development of an improved methodology to assess potential unconventional gas resources[J].Natural Resources Research,2010,19(4):253-268.
[22]HOOD K C,YUREWICZ D A,STEFFEN K J.Assessing continuous resources-building the bridge between static and dynamic analyses[J].Bulletin of Canadian Petroleum Geology,2012,60(3):112-133.
[23]李登华,李建忠,张斌,等.四川盆地侏罗系致密油形成条件、资源潜力与甜点区预测[J].石油学报,2017,38(7):740-752.LI Denghua,LI Jianzhong,ZHANG Bin,et al.Formation condition,resource potential and sweet-spot area prediction of Jurassic tight oil in Sichuan Basin[J].Acta Petrolei Sinica,2017,38(7):740-752.
[24]GUO Qiulin,WANG Shejiao,CHEN Xiaoming.Assessment on tight oil resources in major basins in China[EB/OL].(2018-05-03)[2018-06-01].https:∥doi.org/10.1016/j.jseaes.2018.04.039.
[25]郭秋麟,武娜,陈宁生,等.鄂尔多斯盆地延长组第7油层组致密油资源评价[J].石油学报,2017,38(6):658-665.GUO Qiulin,WU Na,CHEN Ningsheng,et al.An assessment of tight oil resource in 7th oil reservoirs of Yanchang Formation,Ordos Basin[J].Acta Petrolei Sinica,2017,38(6):658-665.
[26]柳广弟,胡素云,赵文智.中国主要含油气盆地运聚单元石油资源丰度及其预测模型[J].石油勘探与开发,2006,33(6):759-761.LIU Guangdi,HU Suyun,ZHAO Wenzhi.Oil resource abundance of petroleum plays in Chinese basins and its prediction model[J].Petroleum Exploration and Development,2006,33(6):759-761.
[27]鄢琦,周总瑛.中国东部断陷盆地石油资源丰度统计模型的建立[J].石油实验地质,2009,31(3):292-295.YAN Qi,ZHOU Zongying.Establishment on oil resources abundance statistical model in east China rift basins[J].Petroleum Geology &Experiment,2009,31(3):292-295.
[28]周红,郭超华,朱芳冰.灰关联法在页岩气资源丰度敏感性研究中的应用[J].地质科技情报,2018,37(4):196-201.ZHOU Hong,GUO Chaohua,ZHU Fangbing.Application of grey relational method in the study of shale gas resources abundances sensitivity[J].Geological Science and Technology Information,2018,37(4):196-201.
[2]黄娟,叶德燎,韩彧.超深层油气藏石油地质特征及其成藏主控因素分析[J].石油实验地质,2016,38(5):635-640.HUANG Juan,YE Deliao,HAN Yu.Petoleum geology features and accumulation controls for ultra-deep oil and gas reservoirs[J].Petroleum Geology &Experiment,2016,38(5):635-640.
[3]孙龙德,邹才能,朱如凯,等.中国深层油气形成、分布与潜力分析[J].石油勘探与开发,2013,40(6):641-649.SUN Longde,ZOU Caineng,ZHU Rukai,et al.Formation,distribution and potential of deep hydrocarbon resources in China[J].Petroleum Exploration and Development,2013,40(6):641-649.
[4]赵文智,胡素云,刘伟,等.再论中国陆上深层海相碳酸盐岩油气地质特征与勘探前景[J].天然气工业,2014,34(4):1-9.ZHAO Wenzhi,HU Suyun,LIU Wei,et al.Petroleum geological features and exploration prospect in deep marine carbonate strata onshore China:a further discussion[J].Natural Gas Industry,2014,34(4):1-9.
[5]张光亚,马锋,梁英波,等.全球深层油气勘探领域及理论技术进展[J].石油学报,2015,36(9):1156-1166.ZHANG Guangya,MA Feng,LIANG Yingbo,et al.Domain and theory-technology progress of global deep oil &gas exploration[J].Acta Petrolei Sinica,2015,36(9):1156-1166.
[6]罗晓容,张立宽,付晓飞,等.深层油气成藏动力学研究进展[J].矿物岩石地球化学通报,2016,35(5):876-889.LUO Xiaorong,ZHANG Likuan,FU Xiaofei,et al.Advances in dynamics of petroleum migration and accumulation in deep basins[J].Bulletin of Mineralogy,Petrology and Geochemistry,2016,35(5):876-889.
[7]鲁雪松,赵孟军,刘可禹,等.库车前陆盆地深层高效致密砂岩气藏形成条件与机理[J].石油学报,2018,39(4):365-378.LU Xuesong,ZHAO Mengjun,LIU Keyu,et al.Forming condition and mechanism of highly effective deep tight sandstone gas reservoir in Kuqa foreland basin[J].Acta Petrolei Sinica,2018,39(4):365-378.
[8]朱光有,杜德道,陈玮岩,等.塔里木盆地西南缘古老层系巨厚黑色泥岩的发现及勘探意义[J].石油学报,2017,38(12):1335-1342.ZHU Guangyou,DU Dedao,CHEN Weiyan,et al.The discovery and exploration significance of the old thick black mudstones in the southwest margin of Tarim Basin[J].Acta Petrolei Sinica,2017,38(12):1335-1342.
[9]中华人民共和国国土资源部.石油天然气储量计算规范:DZ/T0217—2005[S].北京:中国标准出版社,2005.Ministry of Land and Resources of the People’s Republic of China.Regulation of petroleum reserves estimation:DZ/T 0217-2005[S].Beijing:China Standards Press,2005.
[10]盛秀杰,金之钧,肖晔.区带勘探中的油气资源评价方法[J].石油与天然气地质,2017,38(5):983-992.SHENG Xiujie,JIN Zhijun,XIAO Ye.Petroleum resources assessment methodology in play exploration stages[J].Oil &Gas Geology,2017,38(5):983-992.
[11]SCHMOKER J W.Resource assessment perspectives for unconventional gas systems[J].AAPG Bulletin,2002,86(11):1993-1999.
[12]ATTANASI D,CHARPENTIER R R.Comparison of two probability distributions used to model sizes of undiscovered oil and gas accumulations:does the tail wag the assessment[J].Mathematical Geology,2002,34(6):767-777.
[13]KLETT T R,GAUTIER D L,AHLBRANDT T S.An evaluation of the U.S.geological survey world petroleum assessment[J].AAPG Bulletin,2005,89(8):1033-1042.
[14]王社教,蔚远江,郭秋麟,等.致密油资源评价新进展[J].石油学报,2014,35(6):1095-1105.WANG Shejiao,YU Yuanjiang,GUO Qiulin,et al.New advance in resources evaluation of tight oil[J].Acta Petrolei Sinica,2014,35(6):1095-1105.
[15]郭秋麟,陈宁生,刘成林,等.油气资源评价方法研究进展与新一代评价软件系统[J].石油学报,2015,36(10):1305-1314.GUO Qiulin,CHEN Ningsheng,LIU Chenglin,et al.Research advance of hydrocarbon resource assessment method and a new assessment software system[J].Acta Petrolei Sinica,2015,36(10):1305-1314.
[16]郭秋麟,谢红兵,黄旭楠,等.油气资源评价方法体系与应用[M].北京:石油工业出版社,2016.GUO Qiulin,XIE Hongbing,HUANG Xu’nan,et al.Methodologies and application of hydrocarbon resource assessment[M].Beijing:Petroleum Industry Press,2016.
[17]柳广第,刘成林,郭秋麟.油气资源评价[M].北京:石油工业出版社,2018.LIU Guangdi,LIU Chenglin,GUO Qiulin.Hydrocarbon resource assessment[M].Beijing:Petroleum Industry Press,2018.
[18]宋振响,陆建林,周卓明.常规油气资源评价方法研究进展与发展方向[J].中国石油勘探,2017,22(3):21-31.SONG Zhenxiang,LU Jianlin,ZHOU Zhuoming,et al.Research progress and future development of assessment methods for conventional hydrocarbon resources[J].China Petroleum Exploration,2017,22(3):21-31.
[19]CHEN Zhuoheng,OSADETZ K G.Undiscovered petroleum accumulation mapping using model-based stochastic simulation[J].Mathematical Geology,2006,38(1):1-16.
[20]LEE P J.Statistical methods for estimating petroleum resources[M].Oxford:Oxford University Press,2008:234.
[21]SALAZAR J,MCVAY D A,LEE W J.Development of an improved methodology to assess potential unconventional gas resources[J].Natural Resources Research,2010,19(4):253-268.
[22]HOOD K C,YUREWICZ D A,STEFFEN K J.Assessing continuous resources-building the bridge between static and dynamic analyses[J].Bulletin of Canadian Petroleum Geology,2012,60(3):112-133.
[23]李登华,李建忠,张斌,等.四川盆地侏罗系致密油形成条件、资源潜力与甜点区预测[J].石油学报,2017,38(7):740-752.LI Denghua,LI Jianzhong,ZHANG Bin,et al.Formation condition,resource potential and sweet-spot area prediction of Jurassic tight oil in Sichuan Basin[J].Acta Petrolei Sinica,2017,38(7):740-752.
[24]GUO Qiulin,WANG Shejiao,CHEN Xiaoming.Assessment on tight oil resources in major basins in China[EB/OL].(2018-05-03)[2018-06-01].https:∥doi.org/10.1016/j.jseaes.2018.04.039.
[25]郭秋麟,武娜,陈宁生,等.鄂尔多斯盆地延长组第7油层组致密油资源评价[J].石油学报,2017,38(6):658-665.GUO Qiulin,WU Na,CHEN Ningsheng,et al.An assessment of tight oil resource in 7th oil reservoirs of Yanchang Formation,Ordos Basin[J].Acta Petrolei Sinica,2017,38(6):658-665.
[26]柳广弟,胡素云,赵文智.中国主要含油气盆地运聚单元石油资源丰度及其预测模型[J].石油勘探与开发,2006,33(6):759-761.LIU Guangdi,HU Suyun,ZHAO Wenzhi.Oil resource abundance of petroleum plays in Chinese basins and its prediction model[J].Petroleum Exploration and Development,2006,33(6):759-761.
[27]鄢琦,周总瑛.中国东部断陷盆地石油资源丰度统计模型的建立[J].石油实验地质,2009,31(3):292-295.YAN Qi,ZHOU Zongying.Establishment on oil resources abundance statistical model in east China rift basins[J].Petroleum Geology &Experiment,2009,31(3):292-295.
[28]周红,郭超华,朱芳冰.灰关联法在页岩气资源丰度敏感性研究中的应用[J].地质科技情报,2018,37(4):196-201.ZHOU Hong,GUO Chaohua,ZHU Fangbing.Application of grey relational method in the study of shale gas resources abundances sensitivity[J].Geological Science and Technology Information,2018,37(4):196-201.
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