松南让字井斜坡带源下致密砂岩储集层控制因素
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摘要
基于储集层特征分析,利用多项分析测试技术,从基准面旋回、沉积、成岩、构造及CO2充注等5个角度对松南盆地让字井斜坡带源下扶余油层致密砂岩储集层质量控制因素进行研究,探讨源下致密砂岩储集层中"甜点"的分布规律。结果表明,基准面旋回及沉积条件控制了源储配置关系、储集层叠置样式及原始物性,压实作用是导致储集层致密的主要成因,胶结作用加剧了致密程度,有机酸"倒灌"到储集层所产生的次生孔隙对储集层质量有一定程度的改善,构造活动在3个层次上对源下储集层质量的改善起到积极作用,CO2充注可改善局部储集层的渗滤能力,但对形成有效储集层不利。研究区源下致密砂岩储集层中相对优质储集层的形成受控于基准面旋回、主力沉积相、优势溶蚀带、构造抬升区4者的耦合。
Based on the analysis of reservoir characteristics, this paper studies on the control factors on quality of the tight sandstone reservoirs in Fuyu oil layer below source rocks in Rangzijing slope zone in the Southern Songliao Basin from 5 aspects, i.e. base level cycle, deposition, diagenesis, tectonic activity and CO2 infilling, so as to identify the sweet spots in the reservoirs. The following results are obtained:(1) base level cycle and deposition condition control the relation of source rocks and reservoirs, stacking pattern of reservoirs and original property of reservoirs;(2) compaction is the main factor making the reservoirs tight, and cementation exacerbates the tightness;(3) the secondary pores produced by organic acids migrating downward into reservoirs improve the reservoir quality to some extent;(4) tectonic activity plays a positive role in improvement of reservoir quality in three levels, and(5) CO2 infilling can improve the percolation of local reservoirs, but it is adverse for the formation of effective reservoirs. In the study area, the formation of high-quality tight sandstone reservoirs is controlled by the coupling of base level cycle, main sedimentary facies, dominant corrosion zone and tectonic uplifting area.
Based on the analysis of reservoir characteristics, this paper studies on the control factors on quality of the tight sandstone reservoirs in Fuyu oil layer below source rocks in Rangzijing slope zone in the Southern Songliao Basin from 5 aspects, i.e. base level cycle, deposition, diagenesis, tectonic activity and CO2 infilling, so as to identify the sweet spots in the reservoirs. The following results are obtained:(1) base level cycle and deposition condition control the relation of source rocks and reservoirs, stacking pattern of reservoirs and original property of reservoirs;(2) compaction is the main factor making the reservoirs tight, and cementation exacerbates the tightness;(3) the secondary pores produced by organic acids migrating downward into reservoirs improve the reservoir quality to some extent;(4) tectonic activity plays a positive role in improvement of reservoir quality in three levels, and(5) CO2 infilling can improve the percolation of local reservoirs, but it is adverse for the formation of effective reservoirs. In the study area, the formation of high-quality tight sandstone reservoirs is controlled by the coupling of base level cycle, main sedimentary facies, dominant corrosion zone and tectonic uplifting area.
引文
[1]许怀先,李建忠.致密油:全球非常规石油勘探开发新热点[J].石油勘探与开发,2012,39(1):99.Xu Huaixian,Li Jianzhong.Tight oil:New focus of unconventional oil exploration and development in the world[J].Petroleum Exploration and Development,2012,39(1):99.
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[3]戴金星,倪云燕,吴小奇.中国致密砂岩气及在勘探开发上的重要意义[J].石油勘探与开发,2012,39(3):257-264.Dai Jinxing,Ni Yunyan,Wu Xiaoqi.Tight gas in China and its significance in exploration and exploitation[J].Petroleum Exploration and Development,2012,39(3):257-264.
[4]杨晓萍,赵文智,邹才能,等.低渗透储层成因机理及优质储层形成与分布[J].石油学报,2007,28(4):57-61.Yang Xiaoping,Zhao Wenzhi,Zou Caineng,et al.Origin of low-permeability reservoir and distribution of favorable reservoir[J].Acta Petrolei Sinica,2007,28(4):57-61.
[5]刘伟,林承焰,王国民,等.柴西北地区油泉子油田低渗透储层特征与成因分析[J].石油学报,2009,30(3):417-421.Liu Wei,Lin Chengyan,Wang Guomin,et al.Characteristics of low-permeability reservoir and its origin in Youquanzi Oilfield in the northwest part of Qaidam Basin[J].Acta Petrolei Sinica,2009,30(3):417-421.
[6]杨华,付金华,刘新社,等.鄂尔多斯盆地上古生界致密气成藏条件与勘探开发[J].石油勘探与开发,2012,39(3):295-303.Yang Hua,Fu Jinhua,Liu Xinshe,et al.Accumulation conditions and exploration and development of tight gas in the Upper Paleozoic of the Ordos Basin[J].Petroleum Exploration and Development,2012,39(3):295-303.
[7]姚光庆,蔡忠贤.油气储层地质学原理与方法[M].北京:中国地质大学出版社,2005:44-63.Yao Guangqing,Cai Zhongxian.The principle and method of the oil and gas reservoir geology[M].Beijing:China University of Geosciences Press,2005:44-63.
[8]裘怿楠,薛书浩,应凤祥.中国陆相油气储集层[M].北京:石油工业出版社,1997:149-217.Qiu Yi’nan,Xue Shuhao,Ying Fengxiang.Non-marine petroleum reservoir of China[M].Beijing:Petroleum Industry Press,1997:149-217.
[9]Scherer M.Parameters influencing porosity in sandstones:A model for sandstone porosity prediction[J].AAPG Bulletin,1987,71(5):485-491.
[10]周勇,纪友亮,张善文,等.胶菜盆地莱阳凹陷莱阳组低渗透砂岩储层特征及物性控制因素[J].石油学报,2011,32(4):611-619.Zhou Yong,Ji Youliang,Zhang Shanwen,et al.Characteristics and controlling factors on physical properties of low-permeability sandstones of the Laiyang Formation in the Laiyang Sag,Jiaolai Basin[J].Acta Petrolei Sinica,2011,32(4):611-619.
[11]高辉,宋广寿,孙卫,等.储层特低渗透成因分析与评价:以安塞油田沿25块为例[J].地球科学进展,2007,22(11):1134-1139.Gao Hui,Song Guangshou,Sun Wei,et al.Origin analysis of extra low-permeability and evaluation for example reservoir in the Yan25Area of Ansai Oilfield[J].Advances in Earth Science,2007,22(11):1134-1139.
[12]蒋凌志,顾家裕,郭彬程.中国含油气盆地碎屑岩低渗透储层的特征及形成机理[J].沉积学报,2004,22(11):13-17.Jiang Lingzhi,Gu Jiayu,Guo Bincheng.Characteristics and mechanism of low permeability clastic reservoir in Chinese petroliferous basin[J].Acta Sedimentologica Sinica,2004,22(1):13-17.
[13]寿建峰,张惠良,斯春松,等.砂岩动力成岩作用[M].北京:石油工业出版社,2005:1-90.Shou Jianfeng,Zhang Huiliang,Si Chunsong,et al.Dynamic diagenesis of sandstone[M].Beijing:Petroleum Industry Press,2005:1-90.
[14]刘占国,斯春松,寿建峰,等.四川盆地川中地区中下侏罗统砂岩储层异常致密成因机理[J].沉积学报,2011,29(4):744-749.Liu Zhanguo,Si Chunsong,Shou Jianfeng,et al.Origin mechanism of anomalous tightness of middle and lower Jurassic sandstone reservoirs in central Sichuan Basin[J].Acta Sedimentologica Sinica,2011,29(4):744-749.
[15]王永春,康伟力,毛超林.吉林探区油气勘探理论与实践[M].北京:石油工业出版社,2007:92-200.Wang Yongchun,Kang Weili,Mao Chaolin.Theories and practices of petroleum exploration in Jilin exploration area[M].Beijing:Petroleum Industry Press,2007:92-200.
[16]Maas T E,Jahren J,Bj rlykke K.Diagenetic controls on reservoir quality in Middle to Upper Jurassic sandstones in the South Viking Graben,North Sea[J].AAPG Bulletin,2011,95(11):1937-1958.
[17]冷胜荣,陈丽华,纪友亮.吐哈盆地北部凹陷带低渗透储层特征及控制因素[J].石油勘探与开发,1995,22(1):68-73.Leng Shengrong,Chen Lihua,Ji Youliang.Low permeability reservoirs in Taibei Sag,Turpan-Hami Basin:Characteristics and controlling factors[J].Petroleum Exploration and Development,1995,22(1):68-73.
[18]郭彦如,刘俊榜,杨华,等.鄂尔多斯盆地延长组低渗透致密岩性油藏成藏机理[J].石油勘探与开发,2012,39(4):417-425.Guo Yanru,Liu Junbang,Yang Hua,et al.Hydrocarbon accumulation mechanism of low permeable tight lithologic oil reservoirs in the Yanchang Formation,Ordos Basin,China[J].Petroleum Exploration and Development,2012,39(4):417-425.
[19]王行信,周书欣.泥岩成岩作用对砂岩储层胶结作用的影响[J].石油学报,1992,13(4):20-29.Wang Xingxin,Zhou Shuxin.The effects of diagenesis of mudstone on the cementation of a sandstone reservoir[J].Acta Petrolei Sinica,1992,13(4):20-29.
[20]朱国华.碎屑岩储集层孔隙的形成、演化和预测[J].沉积学报,1992,10(3):114-132.Zhu Guohua.Origin and evolution and prediction of porosity in clastic reservoir rocks[J].Acta Sedimentologica Sinica,1992,10(3):114-132.
[21]于兴河.碎屑岩系油气储层沉积学[M].北京:石油工业出版社,2008:226-227.Yu Xinghe.Clastic petroleum reservoir sedimentology[M].Beijing:Petroleum Industry Press,2008:226-227.
[22]关德范,王国力,张金功,等.成盆成烃成藏理论思维:从盆地到油气藏[M].北京:石油工业出版社,2004:15-145.Guan Defan,Wang Guoli,Zhang Jingong,et al.New idea about hydrocarbon generation:From basin to reservoir[M].Beijing:Petroleum Industry Press,2004:15-145.
[23]应凤祥,罗平,何东博,等.中国含油气盆地碎屑岩储集层成岩作用与成岩数值模拟[M].北京:石油工业出版社,2004:1-141.Ying Fengxiang,Luo Ping,He Dongbo,et al.Diagenesis and numerical simulation of clastic reservoir in oil-gas bearing basins,China[M].Beijing:Petroleum Industry Press,2004:1-141.
[24]曾联波.低渗透砂岩储层裂缝的形成与分布[M].北京:石油工业出版社,2008:18-86.Zeng Lianbo.Formation and distribution of fractures in low-permeability sandstone reservoirs[M].Beijing:Science Press,2008:18-86.
[25]马新华,贾爱林,谭健,等.中国致密砂岩气开发工程技术与实践[J].石油勘探与开发,2012,39(5):572-579.Ma Xinhua,Jia Ailin,Tan Jian,et al.Tight sand gas development technologies and practices in China[J].Petroleum Exploration and Development,2012,39(5):572-579.
[26]高玉巧,刘立,杨会东,等.松辽盆地孤店二氧化碳气田片钠铝石的特征及成因[J].石油学报,2007,28(4):62-66.Gao Yuqiao,Liu Li,Yang Huidong,et al.Characteristics and origin of dawsonite in Gudian carbon dioxide gas field of Songliao Basin[J].Acta Petrolei Sinica,2007,28(4):62-66.
[27]唐振兴,刘国文,姜泽军,等.松南构造认识及无机成因CO2分布规律研究[J].石油天然气学报,2009,31(1):1-5.Tang Zhenxing,Liu Guowen,Jiang Zejun,et al.Structure and distribution rules of inorganic-origin carbon dioxide in Southern Songliao Basin[J].Journal of Oil and Gas Technology,2009,31(1):1-5.
[28]李福来,刘立,杨会东,等.松辽盆地南部乾安油田青山口组含片钠铝石砂岩的成岩作用[J].吉林大学学报:地球科学版,2009,39(2):217-223.Li Fulai,Liu Li,Yang Huidong,et al.Lithification of dawsonite-bearing sandstone in the Qingshankou Formation in the Qian’an Oil Field of the south Songliao Basin[J].Journal of Jilin University:Earth Science Edition,2009,39(2):217-223.
[2]郭秋麟,李建忠,陈宁生,等.四川合川—潼南地区须家河组致密砂岩气成藏模拟[J].石油勘探与开发,2011,38(4):409-417.Guo Qiulin,Li Jianzhong,Chen Ningsheng,et al.Modeling of the tight sandstone gas accumulation for the Xujiahe Formation,Hechuan-Tongnan Area,Sichuan Basin[J].Petroleum Exploration and Development,2011,38(4):409-417.
[3]戴金星,倪云燕,吴小奇.中国致密砂岩气及在勘探开发上的重要意义[J].石油勘探与开发,2012,39(3):257-264.Dai Jinxing,Ni Yunyan,Wu Xiaoqi.Tight gas in China and its significance in exploration and exploitation[J].Petroleum Exploration and Development,2012,39(3):257-264.
[4]杨晓萍,赵文智,邹才能,等.低渗透储层成因机理及优质储层形成与分布[J].石油学报,2007,28(4):57-61.Yang Xiaoping,Zhao Wenzhi,Zou Caineng,et al.Origin of low-permeability reservoir and distribution of favorable reservoir[J].Acta Petrolei Sinica,2007,28(4):57-61.
[5]刘伟,林承焰,王国民,等.柴西北地区油泉子油田低渗透储层特征与成因分析[J].石油学报,2009,30(3):417-421.Liu Wei,Lin Chengyan,Wang Guomin,et al.Characteristics of low-permeability reservoir and its origin in Youquanzi Oilfield in the northwest part of Qaidam Basin[J].Acta Petrolei Sinica,2009,30(3):417-421.
[6]杨华,付金华,刘新社,等.鄂尔多斯盆地上古生界致密气成藏条件与勘探开发[J].石油勘探与开发,2012,39(3):295-303.Yang Hua,Fu Jinhua,Liu Xinshe,et al.Accumulation conditions and exploration and development of tight gas in the Upper Paleozoic of the Ordos Basin[J].Petroleum Exploration and Development,2012,39(3):295-303.
[7]姚光庆,蔡忠贤.油气储层地质学原理与方法[M].北京:中国地质大学出版社,2005:44-63.Yao Guangqing,Cai Zhongxian.The principle and method of the oil and gas reservoir geology[M].Beijing:China University of Geosciences Press,2005:44-63.
[8]裘怿楠,薛书浩,应凤祥.中国陆相油气储集层[M].北京:石油工业出版社,1997:149-217.Qiu Yi’nan,Xue Shuhao,Ying Fengxiang.Non-marine petroleum reservoir of China[M].Beijing:Petroleum Industry Press,1997:149-217.
[9]Scherer M.Parameters influencing porosity in sandstones:A model for sandstone porosity prediction[J].AAPG Bulletin,1987,71(5):485-491.
[10]周勇,纪友亮,张善文,等.胶菜盆地莱阳凹陷莱阳组低渗透砂岩储层特征及物性控制因素[J].石油学报,2011,32(4):611-619.Zhou Yong,Ji Youliang,Zhang Shanwen,et al.Characteristics and controlling factors on physical properties of low-permeability sandstones of the Laiyang Formation in the Laiyang Sag,Jiaolai Basin[J].Acta Petrolei Sinica,2011,32(4):611-619.
[11]高辉,宋广寿,孙卫,等.储层特低渗透成因分析与评价:以安塞油田沿25块为例[J].地球科学进展,2007,22(11):1134-1139.Gao Hui,Song Guangshou,Sun Wei,et al.Origin analysis of extra low-permeability and evaluation for example reservoir in the Yan25Area of Ansai Oilfield[J].Advances in Earth Science,2007,22(11):1134-1139.
[12]蒋凌志,顾家裕,郭彬程.中国含油气盆地碎屑岩低渗透储层的特征及形成机理[J].沉积学报,2004,22(11):13-17.Jiang Lingzhi,Gu Jiayu,Guo Bincheng.Characteristics and mechanism of low permeability clastic reservoir in Chinese petroliferous basin[J].Acta Sedimentologica Sinica,2004,22(1):13-17.
[13]寿建峰,张惠良,斯春松,等.砂岩动力成岩作用[M].北京:石油工业出版社,2005:1-90.Shou Jianfeng,Zhang Huiliang,Si Chunsong,et al.Dynamic diagenesis of sandstone[M].Beijing:Petroleum Industry Press,2005:1-90.
[14]刘占国,斯春松,寿建峰,等.四川盆地川中地区中下侏罗统砂岩储层异常致密成因机理[J].沉积学报,2011,29(4):744-749.Liu Zhanguo,Si Chunsong,Shou Jianfeng,et al.Origin mechanism of anomalous tightness of middle and lower Jurassic sandstone reservoirs in central Sichuan Basin[J].Acta Sedimentologica Sinica,2011,29(4):744-749.
[15]王永春,康伟力,毛超林.吉林探区油气勘探理论与实践[M].北京:石油工业出版社,2007:92-200.Wang Yongchun,Kang Weili,Mao Chaolin.Theories and practices of petroleum exploration in Jilin exploration area[M].Beijing:Petroleum Industry Press,2007:92-200.
[16]Maas T E,Jahren J,Bj rlykke K.Diagenetic controls on reservoir quality in Middle to Upper Jurassic sandstones in the South Viking Graben,North Sea[J].AAPG Bulletin,2011,95(11):1937-1958.
[17]冷胜荣,陈丽华,纪友亮.吐哈盆地北部凹陷带低渗透储层特征及控制因素[J].石油勘探与开发,1995,22(1):68-73.Leng Shengrong,Chen Lihua,Ji Youliang.Low permeability reservoirs in Taibei Sag,Turpan-Hami Basin:Characteristics and controlling factors[J].Petroleum Exploration and Development,1995,22(1):68-73.
[18]郭彦如,刘俊榜,杨华,等.鄂尔多斯盆地延长组低渗透致密岩性油藏成藏机理[J].石油勘探与开发,2012,39(4):417-425.Guo Yanru,Liu Junbang,Yang Hua,et al.Hydrocarbon accumulation mechanism of low permeable tight lithologic oil reservoirs in the Yanchang Formation,Ordos Basin,China[J].Petroleum Exploration and Development,2012,39(4):417-425.
[19]王行信,周书欣.泥岩成岩作用对砂岩储层胶结作用的影响[J].石油学报,1992,13(4):20-29.Wang Xingxin,Zhou Shuxin.The effects of diagenesis of mudstone on the cementation of a sandstone reservoir[J].Acta Petrolei Sinica,1992,13(4):20-29.
[20]朱国华.碎屑岩储集层孔隙的形成、演化和预测[J].沉积学报,1992,10(3):114-132.Zhu Guohua.Origin and evolution and prediction of porosity in clastic reservoir rocks[J].Acta Sedimentologica Sinica,1992,10(3):114-132.
[21]于兴河.碎屑岩系油气储层沉积学[M].北京:石油工业出版社,2008:226-227.Yu Xinghe.Clastic petroleum reservoir sedimentology[M].Beijing:Petroleum Industry Press,2008:226-227.
[22]关德范,王国力,张金功,等.成盆成烃成藏理论思维:从盆地到油气藏[M].北京:石油工业出版社,2004:15-145.Guan Defan,Wang Guoli,Zhang Jingong,et al.New idea about hydrocarbon generation:From basin to reservoir[M].Beijing:Petroleum Industry Press,2004:15-145.
[23]应凤祥,罗平,何东博,等.中国含油气盆地碎屑岩储集层成岩作用与成岩数值模拟[M].北京:石油工业出版社,2004:1-141.Ying Fengxiang,Luo Ping,He Dongbo,et al.Diagenesis and numerical simulation of clastic reservoir in oil-gas bearing basins,China[M].Beijing:Petroleum Industry Press,2004:1-141.
[24]曾联波.低渗透砂岩储层裂缝的形成与分布[M].北京:石油工业出版社,2008:18-86.Zeng Lianbo.Formation and distribution of fractures in low-permeability sandstone reservoirs[M].Beijing:Science Press,2008:18-86.
[25]马新华,贾爱林,谭健,等.中国致密砂岩气开发工程技术与实践[J].石油勘探与开发,2012,39(5):572-579.Ma Xinhua,Jia Ailin,Tan Jian,et al.Tight sand gas development technologies and practices in China[J].Petroleum Exploration and Development,2012,39(5):572-579.
[26]高玉巧,刘立,杨会东,等.松辽盆地孤店二氧化碳气田片钠铝石的特征及成因[J].石油学报,2007,28(4):62-66.Gao Yuqiao,Liu Li,Yang Huidong,et al.Characteristics and origin of dawsonite in Gudian carbon dioxide gas field of Songliao Basin[J].Acta Petrolei Sinica,2007,28(4):62-66.
[27]唐振兴,刘国文,姜泽军,等.松南构造认识及无机成因CO2分布规律研究[J].石油天然气学报,2009,31(1):1-5.Tang Zhenxing,Liu Guowen,Jiang Zejun,et al.Structure and distribution rules of inorganic-origin carbon dioxide in Southern Songliao Basin[J].Journal of Oil and Gas Technology,2009,31(1):1-5.
[28]李福来,刘立,杨会东,等.松辽盆地南部乾安油田青山口组含片钠铝石砂岩的成岩作用[J].吉林大学学报:地球科学版,2009,39(2):217-223.Li Fulai,Liu Li,Yang Huidong,et al.Lithification of dawsonite-bearing sandstone in the Qingshankou Formation in the Qian’an Oil Field of the south Songliao Basin[J].Journal of Jilin University:Earth Science Edition,2009,39(2):217-223.