广安气田气水分布控制机理
|
摘要
广安气田上三叠统须家河组须六段和须四段为低孔低渗储层,发育构造气藏、构造-岩性气藏和岩性气藏.气井产水普遍,气水分布复杂.根据地质、测井、测试和生产资料,研究了广安气田须六、须四段气水分布,探讨了控制气水分布的成因机理.垂向上,广安气田气水分异服从重力分异规律,纯气区多发育在构造顶部或相对的构造高部位,而富水区多发育在相对的构造低部位.空间上,气水分布受断层、储层物性、构造隆起幅度和地层倾角控制.储层物性越好,构造隆起幅度越高,地层倾角越大,则气水分异越彻底,而逆断层封堵气水运移,导致气水分布复杂化.不同的气水分异控制因素形成了不同类型的富水区,包括背斜翼部低部位型、鼻沟型、断层封闭型和成岩封闭型.
The fourth and sixth members of Xujiahe Formation of upper Triassic in Guang'an gas field are low-porosity low-permeability sandstone reservoirs,and there are developed structural gas pools,structural-lithlogical gas pools and lithlogical gas pools. Almost all of the gas wells in this field produce water,which makes the water-gas distribution in the sandstone reservoirs very complicated. The water-gas distribution in the fourth and sixth members is investigated based on geological,logging,well testing and production data,and the control mechanism of the water-gas distribution is discussed. Vertically,the water-gas separation is controlled by gravity,which is reflected that the pure gas regions are often located in the top or relative high position of structures,while the water-rich areas are located in the relative low position of structures. In space,the water-gas distribution is controlled by fault,reservoir permeability,structural uplift amplitude and stratigraphic dip angle. High reservoir permeability,great structural uplift amplitude and large stratigraphic dip angle are helpful to the separation of water and gas,whereas inverse faults distributing in western part of the studied area often plug water and gas transportation and result in the complicated water-gas distribution relationship. Four major distribution modes of water-rich areas are formed under different water-gas distribution control factors,and accordingly water-rich areas locate in the lower part of anticline,dyke between structure noses,fault block and diagenetic block separately.
The fourth and sixth members of Xujiahe Formation of upper Triassic in Guang'an gas field are low-porosity low-permeability sandstone reservoirs,and there are developed structural gas pools,structural-lithlogical gas pools and lithlogical gas pools. Almost all of the gas wells in this field produce water,which makes the water-gas distribution in the sandstone reservoirs very complicated. The water-gas distribution in the fourth and sixth members is investigated based on geological,logging,well testing and production data,and the control mechanism of the water-gas distribution is discussed. Vertically,the water-gas separation is controlled by gravity,which is reflected that the pure gas regions are often located in the top or relative high position of structures,while the water-rich areas are located in the relative low position of structures. In space,the water-gas distribution is controlled by fault,reservoir permeability,structural uplift amplitude and stratigraphic dip angle. High reservoir permeability,great structural uplift amplitude and large stratigraphic dip angle are helpful to the separation of water and gas,whereas inverse faults distributing in western part of the studied area often plug water and gas transportation and result in the complicated water-gas distribution relationship. Four major distribution modes of water-rich areas are formed under different water-gas distribution control factors,and accordingly water-rich areas locate in the lower part of anticline,dyke between structure noses,fault block and diagenetic block separately.
引文
[1]张金亮,王宝清.四川盆地中西部上三叠统沉积相[J].西安石油学院学报:自然科学版,2000,15(2):1-6 .ZHANG Jin-liang,WANG Bao-qing.Sedimentary facies of Upper Triassic in Western Sichuan Basin[J].Journal of Xi'an Petroleum Institute:Natural Science Edition,2000,15(2):1-6.
[2]侯方浩,蒋裕强,方少仙.四川盆地上三叠统香溪群二段和四段砂岩沉积模式[J].石油学报,2005,26(2):30 -38.HOU Fang-hao,JIANG Yu-qiang,FANG Shao-xian.Depositional models of the second and fourth members of Upper Triassic Xujiahe Formation in Sichuan Basin[J].Acta Petrolei Sinica,2005,26(2):30-38.
[3]库丽曼,刘树根,张长俊,等.川中地区上三叠统须家河组二段和四段沉积相[J].油气地质与采收率,2007,14(2):35-37.KU Li-man,LIU Shu-gen,ZHANG Chang-jun,et al.Study on sedimentary facies in second and fourrh members of Xujiahe Formation of Upper Triassic in Sichuan Basin[J].Petroleum Geology and Recovery Efficiency,2007,14(2):35-37.
[4]蒋裕强,郭贵安,陈辉,等.川中地区上三叠统须家河组二段和四段砂岩优质储层成因探讨[J].油气地质与采收率,2007,14(1):18-21.JIANG Yu-qiang,GUO Gui-an,CHEN Hui,et al.Origin of high-quality reservoirs of the second and fourth member sandstones,Xujiahe Formation,Upper Triassic in the center of Sichuan Basin[J].Petroleum Geology and Recovery Efficiency,2007,14(1):18-21.
[5]孙红杰,刘树根,朱平,等.川中上三叠统须家河组二段和四段成岩作用对孔隙发育的控制作用[J].中国西部油气地质,2006,2(3):302-305.SUN Hong-jie,LIU Shu-gen,ZHU Ping,et al.Controlling of diagenesis on the pore development in the second and fourth members of the Upper Triassic Xujiahe Formation in the central area of Sichuan Basin[J].West China Petroleum Geosciences,2006,2(3):302-305.
[6]申艳,谢继容,唐大海.四川盆地中西部上三叠统须家河组成岩相划分及展布[J].天然气勘探与开发,2006,29(3):21-25.SHEN Yan,XIE Ji-rong,TANG Da-hai.Division and distribution of diagenetic facies in Upper Triassic Xujiahe Formation,central-west Sichuan Basin[J].Natural Gas Exploration&Development,2006,29(3):21-25.
[7]罗启后,王世谦.四川盆地中西部-三叠系重点含气层天然气富集条件研究[J].天然气工业,1996,16(s1):40 -54.LUO Qi-hou,WANG Shi-qian.Research on natural gas enrichment conditions of the main coal-bearing strata of Triassic in the centre-west part of Sichuan Basin[J].Natural Gas Industry,1996,16(s1):40-54.
[8]朱光有,张水昌,梁英波,等.四川盆地天然气特征及气源[J].地学前缘,2006,13(2):234-248.ZHU Guang-you,ZHANG Shui-chang,LIANG Ying-bo,et al.The characteristics of natural gas in Sichuan Basin and its sources[J].Earth Science Frontiers,2006,13(2):234-248.
[9]蒋裕强,郭贵安,陈义才,等.川中地区须家河组天然气成藏机制研究[J].天然气工业,2006,26(11):1-3.JIANG Yu-qiang,GUO Gui-an,CHEN Yi-cai,et al.Mechanism of gas reservoiring in Xujiahe Formation in central Sichuan Basin[J].Natural Gas Industry,2006,26(11):1-3.
[10]车国琼,龚昌明,汪楠,等.广安地区须家河组气藏成藏条件[J].天然气工业,2007,27(6):1-5.CHE Guo-qiong,GONG Chang-ming,WANG Nan,et al.Gas accumulation condition in the Xujiahe Group of Guang'an area[J].Natural Gas Industry,2007,27(6):1-5.
[11]陈义才,蒋裕强,郭贵安,等.川中地区上三叠统天然气成藏机理[J].天然气工业,2007,27(6):27-30.CHEN Yi-cai,JIANG Yu-qiang,GUO Gui-an,et al.Mechanism of natural gas accumulation in Upper Triassic in central Sichuan Basin[J].Natural Gas Industry,2007,27(6):27-30.
[12]徐伟,杨洪志,陈中华.广安地区须六段气藏特征及开发策略[J].天然气工业,2007,27(6):19-21.XV Wei,YANG Hong-zhi,CHEN Zhong-hua.Characteristics of the sixth member of Xujiahe Formation(T3x6)gas reservoirs in Guang'an area and its development tactics[J].Natural Gas Industry,2007,27(6):19-21.
[13]张中平,刘建红.四川盆地阆中-广安地区低孔渗储层含气性预测实例[J].中国石油勘探,2011,16(5/6):119 -124.ZHANG Zhong-ping,LIU Jian-hong.A case study of gasbearing probability of low porosity and low permeability gas reservoirs in Langzhong-Guang'an area,Sichuan Basin[J].China Petroleum Exploration,2011,16(5/6):119-124.
[14]熊艳,欧阳明华,王聃,等.四川盆地三台-合川区块地震技术应用效果分析及适用技术评价[J].中国石油勘探,2011,16(5/6):111-118.XIONG-Yan,OUYANG Ming-hua,WANG Dan,et al.Application of pre-stack reservoir prediction technology in Santai-Hechuan area,Sichuan Basin[J].China Petroleum Exploration,2011,16(5/6):111-118.
[15]王威,徐国盛,雍自权,等.川中地区香四段气水分布特征及成因机理[J].成都理工大学学报:自然科学版,2005,32(4):278-382.WANG Wei,XV Guo-sheng,YONG Zi-quan,et al.Distribution rule and formation mechanism of gas and water in Layer 4 of Xiangxi Group of the centeral area in Sichuan,China[J].Journal of Chengdu University of Technology:Science&Technology Edition,2005,32(4):278-382.
[16]郝国丽,柳广弟,谢增业,等.广安气田上三叠统须家河组致密砂岩储层气水分布特征[J].中国石油大学学报:自然科学版,2010,52(3):1-7.HAO Guo-li,LIU Guang-di,XIE Zeng-ye,et al.Distribution characteristics of gas and water of tight sandstone gas reservoir in upper Triassic Xujiahe formation of Guang'an gas field[J].Journal of China University of Petroleum:Edition of Natural Science,2010,52(3):1-7.
[17]Masters J A.Deep basin gas trap,West Canada[J].AAPG Bulletin,1979,63(2):152-181.
[18]Law B E.Basin-centered gas systems[J].AAPG Bulletin,2002,86(11):1891-1919.
[19]闵琪,杨华,付金华.鄂尔多斯盆地的深盆气[J].天然气工业,2000,20(6):11-15.MIN Qi,YANG Hua,FU Jin-hua.Deep basin gas in E'erduosi Basin[J].Natural Gas Industry,2000,20(6):11-15.
[20]张新新,赵靖舟,马静辉,等.苏里格气区盒8段地层古--今构造特征及其对气水分布的控制作用[J].西安石油大学学报:自然科学版,2011,26(3):14-20.ZHANG Xin-xin,ZHAO Jing-zhou,MA Jing-hui,et al.Ancient and modern tectonic characteristics of 8th member of Xiashihezi Formation in Sulige Gasfield,Ordos Basin,China and their control effects on gas-water distribution[J].Journal of Xi'an Shiyou University:Natural Science Edition,2011,26(3):14-20.
[21]王金琪.鄂尔多斯超大型深盆气区三次理论预测及今后展望[J].天然气工业,2003,23(3):1-4.WANG Jin-qi.Theorically predicting the super large-sized deep-basin gas region in E'erduosi Basin three times and its prospect[J].Natural Gas Industry,2003,23(3):1-4.
[22]李潍莲,刘震,张宏光,等.鄂尔多斯盆地塔巴庙地区断层对上古生界天然气富集成藏的控制[J].地球科学与环境学报,2012,34(4):22-29.LI Wei-lian,LIU Zhen,ZHANG Hong-guang,et al.Control of fault on gas accumulation of Upper Paleozoic in Tabamiao area of Ordos Basin[J].Journal of Earth Sciences and Environment,2012,34(4):22-29.
[23]袁海锋,倪根生,邓小江.龙女寺构造须家河组天然气成藏主控因素[J].西南石油大学学报:自然科学版,2012,34(1):6-12.YUAN Hai-feng,NI Gen-sheng,DENG Xiao-jiang.Control factor of natural gas accumulation in Xujiahe Formation,Longnüsi structure,Sichuan Basin[J].Journal of Southwest Petroleum University:Science&Technology Edition,2012,34(1):6-12.
[24]高树生,侯吉瑞,杨洪志,等.川中地区须家河组低渗透砂岩气藏产水机理[J].天然气工业,2012,32(11):40-42 .GAO Shu-sheng,HOU Ji-rui,YANG Hong-zhi,et al.Water production mechanism of Xujiahe low-permeability sandstone gas reservoirs in Middle Sichuan Basin[J].Natural Gas Industry,2012,32(11):40-42.
[25]宋丽红,朱如凯,朱德升,等.黏土矿物对广安须家河组致密砂岩物性影响[J].西南石油大学学报:自然科学版,2011,33(2):73-78.SONG Li-hong,ZHU Ru-kai,ZHU De-sheng,et al.Influences of clay mnerals on physical properties of tight sandstones of Xujiahe Formation in Guang'an area[J].Journal of Southwest Petroleum University:Science&Technology Edition,2011,33(2):73-78.
[2]侯方浩,蒋裕强,方少仙.四川盆地上三叠统香溪群二段和四段砂岩沉积模式[J].石油学报,2005,26(2):30 -38.HOU Fang-hao,JIANG Yu-qiang,FANG Shao-xian.Depositional models of the second and fourth members of Upper Triassic Xujiahe Formation in Sichuan Basin[J].Acta Petrolei Sinica,2005,26(2):30-38.
[3]库丽曼,刘树根,张长俊,等.川中地区上三叠统须家河组二段和四段沉积相[J].油气地质与采收率,2007,14(2):35-37.KU Li-man,LIU Shu-gen,ZHANG Chang-jun,et al.Study on sedimentary facies in second and fourrh members of Xujiahe Formation of Upper Triassic in Sichuan Basin[J].Petroleum Geology and Recovery Efficiency,2007,14(2):35-37.
[4]蒋裕强,郭贵安,陈辉,等.川中地区上三叠统须家河组二段和四段砂岩优质储层成因探讨[J].油气地质与采收率,2007,14(1):18-21.JIANG Yu-qiang,GUO Gui-an,CHEN Hui,et al.Origin of high-quality reservoirs of the second and fourth member sandstones,Xujiahe Formation,Upper Triassic in the center of Sichuan Basin[J].Petroleum Geology and Recovery Efficiency,2007,14(1):18-21.
[5]孙红杰,刘树根,朱平,等.川中上三叠统须家河组二段和四段成岩作用对孔隙发育的控制作用[J].中国西部油气地质,2006,2(3):302-305.SUN Hong-jie,LIU Shu-gen,ZHU Ping,et al.Controlling of diagenesis on the pore development in the second and fourth members of the Upper Triassic Xujiahe Formation in the central area of Sichuan Basin[J].West China Petroleum Geosciences,2006,2(3):302-305.
[6]申艳,谢继容,唐大海.四川盆地中西部上三叠统须家河组成岩相划分及展布[J].天然气勘探与开发,2006,29(3):21-25.SHEN Yan,XIE Ji-rong,TANG Da-hai.Division and distribution of diagenetic facies in Upper Triassic Xujiahe Formation,central-west Sichuan Basin[J].Natural Gas Exploration&Development,2006,29(3):21-25.
[7]罗启后,王世谦.四川盆地中西部-三叠系重点含气层天然气富集条件研究[J].天然气工业,1996,16(s1):40 -54.LUO Qi-hou,WANG Shi-qian.Research on natural gas enrichment conditions of the main coal-bearing strata of Triassic in the centre-west part of Sichuan Basin[J].Natural Gas Industry,1996,16(s1):40-54.
[8]朱光有,张水昌,梁英波,等.四川盆地天然气特征及气源[J].地学前缘,2006,13(2):234-248.ZHU Guang-you,ZHANG Shui-chang,LIANG Ying-bo,et al.The characteristics of natural gas in Sichuan Basin and its sources[J].Earth Science Frontiers,2006,13(2):234-248.
[9]蒋裕强,郭贵安,陈义才,等.川中地区须家河组天然气成藏机制研究[J].天然气工业,2006,26(11):1-3.JIANG Yu-qiang,GUO Gui-an,CHEN Yi-cai,et al.Mechanism of gas reservoiring in Xujiahe Formation in central Sichuan Basin[J].Natural Gas Industry,2006,26(11):1-3.
[10]车国琼,龚昌明,汪楠,等.广安地区须家河组气藏成藏条件[J].天然气工业,2007,27(6):1-5.CHE Guo-qiong,GONG Chang-ming,WANG Nan,et al.Gas accumulation condition in the Xujiahe Group of Guang'an area[J].Natural Gas Industry,2007,27(6):1-5.
[11]陈义才,蒋裕强,郭贵安,等.川中地区上三叠统天然气成藏机理[J].天然气工业,2007,27(6):27-30.CHEN Yi-cai,JIANG Yu-qiang,GUO Gui-an,et al.Mechanism of natural gas accumulation in Upper Triassic in central Sichuan Basin[J].Natural Gas Industry,2007,27(6):27-30.
[12]徐伟,杨洪志,陈中华.广安地区须六段气藏特征及开发策略[J].天然气工业,2007,27(6):19-21.XV Wei,YANG Hong-zhi,CHEN Zhong-hua.Characteristics of the sixth member of Xujiahe Formation(T3x6)gas reservoirs in Guang'an area and its development tactics[J].Natural Gas Industry,2007,27(6):19-21.
[13]张中平,刘建红.四川盆地阆中-广安地区低孔渗储层含气性预测实例[J].中国石油勘探,2011,16(5/6):119 -124.ZHANG Zhong-ping,LIU Jian-hong.A case study of gasbearing probability of low porosity and low permeability gas reservoirs in Langzhong-Guang'an area,Sichuan Basin[J].China Petroleum Exploration,2011,16(5/6):119-124.
[14]熊艳,欧阳明华,王聃,等.四川盆地三台-合川区块地震技术应用效果分析及适用技术评价[J].中国石油勘探,2011,16(5/6):111-118.XIONG-Yan,OUYANG Ming-hua,WANG Dan,et al.Application of pre-stack reservoir prediction technology in Santai-Hechuan area,Sichuan Basin[J].China Petroleum Exploration,2011,16(5/6):111-118.
[15]王威,徐国盛,雍自权,等.川中地区香四段气水分布特征及成因机理[J].成都理工大学学报:自然科学版,2005,32(4):278-382.WANG Wei,XV Guo-sheng,YONG Zi-quan,et al.Distribution rule and formation mechanism of gas and water in Layer 4 of Xiangxi Group of the centeral area in Sichuan,China[J].Journal of Chengdu University of Technology:Science&Technology Edition,2005,32(4):278-382.
[16]郝国丽,柳广弟,谢增业,等.广安气田上三叠统须家河组致密砂岩储层气水分布特征[J].中国石油大学学报:自然科学版,2010,52(3):1-7.HAO Guo-li,LIU Guang-di,XIE Zeng-ye,et al.Distribution characteristics of gas and water of tight sandstone gas reservoir in upper Triassic Xujiahe formation of Guang'an gas field[J].Journal of China University of Petroleum:Edition of Natural Science,2010,52(3):1-7.
[17]Masters J A.Deep basin gas trap,West Canada[J].AAPG Bulletin,1979,63(2):152-181.
[18]Law B E.Basin-centered gas systems[J].AAPG Bulletin,2002,86(11):1891-1919.
[19]闵琪,杨华,付金华.鄂尔多斯盆地的深盆气[J].天然气工业,2000,20(6):11-15.MIN Qi,YANG Hua,FU Jin-hua.Deep basin gas in E'erduosi Basin[J].Natural Gas Industry,2000,20(6):11-15.
[20]张新新,赵靖舟,马静辉,等.苏里格气区盒8段地层古--今构造特征及其对气水分布的控制作用[J].西安石油大学学报:自然科学版,2011,26(3):14-20.ZHANG Xin-xin,ZHAO Jing-zhou,MA Jing-hui,et al.Ancient and modern tectonic characteristics of 8th member of Xiashihezi Formation in Sulige Gasfield,Ordos Basin,China and their control effects on gas-water distribution[J].Journal of Xi'an Shiyou University:Natural Science Edition,2011,26(3):14-20.
[21]王金琪.鄂尔多斯超大型深盆气区三次理论预测及今后展望[J].天然气工业,2003,23(3):1-4.WANG Jin-qi.Theorically predicting the super large-sized deep-basin gas region in E'erduosi Basin three times and its prospect[J].Natural Gas Industry,2003,23(3):1-4.
[22]李潍莲,刘震,张宏光,等.鄂尔多斯盆地塔巴庙地区断层对上古生界天然气富集成藏的控制[J].地球科学与环境学报,2012,34(4):22-29.LI Wei-lian,LIU Zhen,ZHANG Hong-guang,et al.Control of fault on gas accumulation of Upper Paleozoic in Tabamiao area of Ordos Basin[J].Journal of Earth Sciences and Environment,2012,34(4):22-29.
[23]袁海锋,倪根生,邓小江.龙女寺构造须家河组天然气成藏主控因素[J].西南石油大学学报:自然科学版,2012,34(1):6-12.YUAN Hai-feng,NI Gen-sheng,DENG Xiao-jiang.Control factor of natural gas accumulation in Xujiahe Formation,Longnüsi structure,Sichuan Basin[J].Journal of Southwest Petroleum University:Science&Technology Edition,2012,34(1):6-12.
[24]高树生,侯吉瑞,杨洪志,等.川中地区须家河组低渗透砂岩气藏产水机理[J].天然气工业,2012,32(11):40-42 .GAO Shu-sheng,HOU Ji-rui,YANG Hong-zhi,et al.Water production mechanism of Xujiahe low-permeability sandstone gas reservoirs in Middle Sichuan Basin[J].Natural Gas Industry,2012,32(11):40-42.
[25]宋丽红,朱如凯,朱德升,等.黏土矿物对广安须家河组致密砂岩物性影响[J].西南石油大学学报:自然科学版,2011,33(2):73-78.SONG Li-hong,ZHU Ru-kai,ZHU De-sheng,et al.Influences of clay mnerals on physical properties of tight sandstones of Xujiahe Formation in Guang'an area[J].Journal of Southwest Petroleum University:Science&Technology Edition,2011,33(2):73-78.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心