四川盆地川东北区二叠系—三叠系天然气勘探成果与前景展望
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摘要
勘探思路从以构造圈闭为主转变为以长兴组—飞仙关组礁滩相白云岩储层构造-岩性复合圈闭为主,发现了目前国内最大的海相气田——普光气田。在总结前人40年勘探成果的基础上,结合地质与地震资料,建立了区内礁滩相沉积模式,深层碳酸盐岩优质储层发育“三元控储”机理及“复合控藏”模式;外围构造在飞仙关组三段、四段鲕滩灰岩及嘉陵江组二段白云岩也取得了勘探上的较大突破;同时,形成了海相深层碳酸盐岩天然气成藏机理理论体系及以储层综合预测为主的勘探技术系列。新的勘探成果表明区内具有多个勘探领域,是四川盆地未来重要的天然气勘探区。
The shifting of exploration target from structural traps to structural-lithologic traps(represented by dolomite reservoirs reef flat facies in Changxing-Feixianguan Formation of) led to the discovery of Puguang gas field-China's largest marine gas field so far.Based on 40 years of exploration achievements,the reef flat sedimentary model,'ternary reservoir controlling mechanism' concerning the deep carbonate reservoirs,and the 'compound reservoir controlling' model,are established by integrating the geological with seismic data.Breakthroughs are also made in the exploration of oolitic beach limestone in the third and fourth members of Feixianguan Formation and dolomite in the second member of Jialinjiang Formation in the periphery structures.Meanwhile,a theoretical system of gas pooling in deep marine carbonates is constructed,and a series of technologies aiming at integrated reservoir prediction are developed.New exploration achievements reveal that there are several potential exploration targets in the area and that Sichuan basin is an important area for future gas exploration.
The shifting of exploration target from structural traps to structural-lithologic traps(represented by dolomite reservoirs reef flat facies in Changxing-Feixianguan Formation of) led to the discovery of Puguang gas field-China's largest marine gas field so far.Based on 40 years of exploration achievements,the reef flat sedimentary model,'ternary reservoir controlling mechanism' concerning the deep carbonate reservoirs,and the 'compound reservoir controlling' model,are established by integrating the geological with seismic data.Breakthroughs are also made in the exploration of oolitic beach limestone in the third and fourth members of Feixianguan Formation and dolomite in the second member of Jialinjiang Formation in the periphery structures.Meanwhile,a theoretical system of gas pooling in deep marine carbonates is constructed,and a series of technologies aiming at integrated reservoir prediction are developed.New exploration achievements reveal that there are several potential exploration targets in the area and that Sichuan basin is an important area for future gas exploration.
引文
1马永生,郭旭升,郭彤楼,等.四川盆地普光大型气田的发现与勘探启示[J].地质论评,2005,51(5):477-480Ma Yongsheng,Guo Xusheng,Guo Tonglou,et al.Discovery ofthe Large-scale Puguang gas field in the Sichuan basin and its en-lightenment for hydrocarbon prospecting[J].Geological Review,2005,51(5):477-480
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6牟传龙,谭钦银,余谦,等.川东北地区上二叠统长兴组生物礁组成及成礁模式[J].沉积与特提斯地质,2004,24(3):65-71Mou Chuanlong,Tan Qinyin,Yu Qian,et al.The organic reefsand their reef-forming model for the Upper Permian ChangxingFormation in northeastern Sichuan[J].Sedimentany Geology andTethan Geology,2004,24(3):65-71
7蔡勋育,马永生,李国雄,等.普光气田下三叠统飞仙关组储层特征[J].石油天然气学报,2005,27(1):43-45Cai Xunyu,Ma Yongsheng,Li Guoxiong,et al.Reservoir char-acteristics of Feixianguan in Puguang gasfield[J].Journal of Oiland Gas Technology,2005,27(1):43-45
8蔡勋育,韦宝东,赵培荣.南方海相烃源岩特征分析[J].天然气工业,2005,25(3):20-22Cai Xunyu,Wei Baodong,Zhao Peirong.Characteristics of themarine hydrocarbon source rocks in South China[J].Natural GsaIndustry,2005,25(3):20-22
9沃玉进,肖开华,周雁,等.中国南方海相层系油气成藏组合类型与勘探前景[J].石油与天然气地质,2006,27(1):11-16Wo yujin,Xiao kaihua,Zhou yan,et al.Types of marine plays insouthern China and exploration prospects[J].Oil&Gas Geology,2006,27(1):11-16
10蔡国立,饶丹,潘文蕾.川东北地区普光气田成藏模式研究[J].石油实验地质,2005,27(5):462-467Cai Liguo,Rao Dan,Pan Wenlei.The Evolution modle of the Pu-guang gas field in northeast of Sichuan[J].Petroleum Geology&Experiment,2005,27(5):462-467
11马永生,牟传龙,潭钦银,等.关于开江—梁平海槽的认识[J].石油与天然气地质,2006,27(3):326-331Ma Yongsheng,Mou Chuanlong,Tan Qingyin,et al.A discus-sion on Kaijiang-Liangping ocean trough[J].Oil&Gas Geology,2006,27(3):326-331
2戴少武,贺自爱,王津义.中国南方中、古生界油气勘探的思路[J].石油与天然气地质,2001,22(3):195-202Dai Shaowu,He Ziai,Wang Jinyi.Thinking of Meso-Paleozoichydrocarbon exploration in South China[J].Oil&Gas Geology,2001,22(3):195-202
3马永生,蔡勋育,李国雄.四川盆地普光大型气藏基本特征及成藏富集规律[J].地质学报,2005,79(6):858-865Ma Yongsheng,Cai Xunyu,Liguoxiong.Basic characteristics andconcentration of the Puguang gas field in the Sichuan basin[J].Acta Geologica Sinica,2005,79(6):858-865
4王金琪.四川盆地油气地质特征[J].石油实验地质,2004,26(2):115-120Wang Jinqi.Characteristics of petroleum geology in the Sichuanbasin[J].Petroleum Geology&Experiment,2004,26(2):115-120
5郭彤楼,田海芹.南方中、古生界油气勘探的若干地质问题及对策[J].石油与天然气地质,2002,22(9):244-247Guo Tonglou,Tian Haiqin.Several geological issues about Meso-zoic-Paleozoic oil and gas prospection in southern China and theway of how to deal with[J].Oil&Gas Geology,2002,22(9):244-247
6牟传龙,谭钦银,余谦,等.川东北地区上二叠统长兴组生物礁组成及成礁模式[J].沉积与特提斯地质,2004,24(3):65-71Mou Chuanlong,Tan Qinyin,Yu Qian,et al.The organic reefsand their reef-forming model for the Upper Permian ChangxingFormation in northeastern Sichuan[J].Sedimentany Geology andTethan Geology,2004,24(3):65-71
7蔡勋育,马永生,李国雄,等.普光气田下三叠统飞仙关组储层特征[J].石油天然气学报,2005,27(1):43-45Cai Xunyu,Ma Yongsheng,Li Guoxiong,et al.Reservoir char-acteristics of Feixianguan in Puguang gasfield[J].Journal of Oiland Gas Technology,2005,27(1):43-45
8蔡勋育,韦宝东,赵培荣.南方海相烃源岩特征分析[J].天然气工业,2005,25(3):20-22Cai Xunyu,Wei Baodong,Zhao Peirong.Characteristics of themarine hydrocarbon source rocks in South China[J].Natural GsaIndustry,2005,25(3):20-22
9沃玉进,肖开华,周雁,等.中国南方海相层系油气成藏组合类型与勘探前景[J].石油与天然气地质,2006,27(1):11-16Wo yujin,Xiao kaihua,Zhou yan,et al.Types of marine plays insouthern China and exploration prospects[J].Oil&Gas Geology,2006,27(1):11-16
10蔡国立,饶丹,潘文蕾.川东北地区普光气田成藏模式研究[J].石油实验地质,2005,27(5):462-467Cai Liguo,Rao Dan,Pan Wenlei.The Evolution modle of the Pu-guang gas field in northeast of Sichuan[J].Petroleum Geology&Experiment,2005,27(5):462-467
11马永生,牟传龙,潭钦银,等.关于开江—梁平海槽的认识[J].石油与天然气地质,2006,27(3):326-331Ma Yongsheng,Mou Chuanlong,Tan Qingyin,et al.A discus-sion on Kaijiang-Liangping ocean trough[J].Oil&Gas Geology,2006,27(3):326-331
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