准中地区三工河组浅水三角洲沉积模式及油气勘探意义
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摘要
为建立准噶尔盆地中部地区侏罗系三工河组沉积模式,运用古生物资料统计、古构造恢复、岩心及野外露头观察、粒度及测井曲线分析等手段,对准中地区侏罗系三工河组大型三角洲发育背景、沉积特征、微相展布等进行了研究。结果表明:准噶尔盆地三工河组沉积期具有盆大、水浅、坡缓、物源充足的沉积背景;三角洲具有前缘相带为主,水下分支河道微相发育,横向分布广泛,纵向多期次叠加,少见河口坝沉积的特征,属于典型的浅水三角洲沉积模式。并在此基础上对成藏条件进行了探讨,认为研究区三工河组二段发育良好的储盖组合、有效的运移通道和优质的烃源岩,具有广阔的勘探前景。
In order to establish the sedimentary patterns of the Jurassic Sangonghe Formation in the central Junggar Basin,paleontological data statistics,paleostructure restoration,core test,field outcrop observation,particle size and logging curve analysis and other means were used to study the development setting,sedimentary features and microfacies distribution of the large-scale delta. Result indicates that the sedimentary period of the Jurassic Sangonghe Formation is featured by large-scale basin,shallow water,gentle slope and sufficient provenance. The delta is dominated by the frontal facies with well-developed underwater distributary channel subfacies and rate mouth bar,which is characterized by extensive lateral distribution and multi-stage superimposition in the longitudinal direction. It is considered as a typical shallow-water delta sedimentary pattern. The corresponding hydrocarbon accumulation conditions were further discussed based on this understanding. It is believed that the well-developed reservoir-caprock combination,effective migration channel and high-quality source-rock in the second member of the Sangonghe Formation shows a broad prospects for hydrocarbon exploration.
In order to establish the sedimentary patterns of the Jurassic Sangonghe Formation in the central Junggar Basin,paleontological data statistics,paleostructure restoration,core test,field outcrop observation,particle size and logging curve analysis and other means were used to study the development setting,sedimentary features and microfacies distribution of the large-scale delta. Result indicates that the sedimentary period of the Jurassic Sangonghe Formation is featured by large-scale basin,shallow water,gentle slope and sufficient provenance. The delta is dominated by the frontal facies with well-developed underwater distributary channel subfacies and rate mouth bar,which is characterized by extensive lateral distribution and multi-stage superimposition in the longitudinal direction. It is considered as a typical shallow-water delta sedimentary pattern. The corresponding hydrocarbon accumulation conditions were further discussed based on this understanding. It is believed that the well-developed reservoir-caprock combination,effective migration channel and high-quality source-rock in the second member of the Sangonghe Formation shows a broad prospects for hydrocarbon exploration.
引文
[1]匡立春,雷德文,唐勇,等.准噶尔盆地侏罗—白垩系沉积特征和岩性地层油气藏[M].北京:石油工业出版社,2013:1-10.
[2]李丕龙,冯建军,陆永潮,等.准噶尔盆地构造沉积与成藏[M].北京:地质出版社,2010:20-49.
[3]谭绍泉.准中地区油气成藏关键期厘定及其石油地质意义[J].断块油气田,2013,20(5):551-555.
[4]孟翠萍,朱美衡,杨晓梅,等.准噶尔盆地中央坳陷侏罗系三工河组沉积相与层序地层研究[J].石油天然气学报,2011,33(2):27-31.
[5]万力,李胜利,于兴河,等.坡折带对陆相湖盆辫状河三角洲层序和沉积的控制———以准噶尔盆地东缘三工河组为例[J].东北石油大学学报,2015,39(3):23-31.
[6]刘海涛,蒲秀刚,张光亚,等.准噶尔盆地白家海地区侏罗系三角洲沉积体系[J].东北石油大学学报,2010,34(6):37-41.
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[9]余逸凡,戴胜群,尹太举,等.鄂尔多斯盆地下寺湾油区延长组浅水三角洲沉积研究[J].特种油气藏,2009,16(5):28-31.
[10]朱筱敏,刘媛,方庆,等.大型坳陷湖盆浅水三角洲形成条件和沉积模式:以松辽盆地三肇凹陷扶余油层为例[J].地学前缘,2012,19(1):89-99.
[11]孙雨,马世忠,姜洪福,等.松辽盆地三肇凹陷葡萄花油层河控浅水三角洲沉积模式[J].地质学报,2010,84(10):1502-1509.
[12]康玉柱.准噶尔—吐哈盆地构造体系控油作用研究[M].北京:地质出版社,2011:36-37.
[13]何登发,陈新发,况军,等.准噶尔盆地车排子-莫索湾古隆起的形成演化与成因机制[J].地学前缘,2008,15(4):42-55.
[14]鲍志东,赵艳军,祁利祺,等.构造转换带储集体发育的主控因素———以准噶尔盆地腹部侏罗系为例[J].岩石学报,2011,27(3):867-877.
[15]王敏芳,焦养泉,任建业,等.准噶尔盆地侏罗纪沉降特征及其与构造演化的关系[J].石油学报,2007,28(1):27-32.
[16]方世虎,赵孟军,卓勤功,等.准噶尔盆地中—新生代构造与沉积演化[M].北京:石油工业出版社,2015:6-13.
[17]麻伟娇,王峰,宋明星,等.不整合面上底砾岩控制油气运聚的流体证据[J].特种油气藏,2017,24(1):81-86.
[18]宋传春,张云银,李海涛,等.准中地区深层岩性圈闭识别[J].特种油气藏,2007,14(5):28-31.
[19]石好果,林会喜.准中4区块侏罗系储层成岩及油气充注特征研究[J].特种油气藏,2017,24(6):18-22.
[20]汪彦,彭军,刘建锋,等.新疆油田七区侏罗系八道湾组物源分析[J].特种油气藏,2008,15(1):13-16.
[21]张曰静.准噶尔盆地腹部下侏罗统三工河组物源体系分析[J].新疆石油地质,2012,33(5):540-542.
[22]陈林,许涛,张立宽,等.准噶尔盆地中部1区块侏罗系三工河组毯砂成岩演化及其物性演化分析[J].东北石油大学学报,2013,37(5):10-16.
[23]陈林,许涛,石好果,等.准噶尔盆地中部1区块侏罗系三工河组毯砂成藏期孔隙度恢复及其意义[J].石油与天然气地质,2014,35(4):486-493.
[24]胡素云,蔚远江,董大忠,等.准噶尔盆地腹部断裂活动对油气聚集的控制作用[J].石油学报,2006,27(1):1-7.
[25]谭绍泉,曾治平,宫亚军,等.准噶尔盆地腹部超压控制烃、储演化与油气充注过程[J].断块油气田,2014,21(3):287-291.
[26]刘德志,许涛,张敏,等.准噶尔盆地中部1区块侏罗系三工河组油气输导特征分析[J].东北石油大学学报,2013,37(2):9-16.
[2]李丕龙,冯建军,陆永潮,等.准噶尔盆地构造沉积与成藏[M].北京:地质出版社,2010:20-49.
[3]谭绍泉.准中地区油气成藏关键期厘定及其石油地质意义[J].断块油气田,2013,20(5):551-555.
[4]孟翠萍,朱美衡,杨晓梅,等.准噶尔盆地中央坳陷侏罗系三工河组沉积相与层序地层研究[J].石油天然气学报,2011,33(2):27-31.
[5]万力,李胜利,于兴河,等.坡折带对陆相湖盆辫状河三角洲层序和沉积的控制———以准噶尔盆地东缘三工河组为例[J].东北石油大学学报,2015,39(3):23-31.
[6]刘海涛,蒲秀刚,张光亚,等.准噶尔盆地白家海地区侏罗系三角洲沉积体系[J].东北石油大学学报,2010,34(6):37-41.
[7]刘军钊,张尚锋,关键,等.准噶尔盆地西北缘车排子地区侏罗系扇三角洲沉积特征[J].特种油气藏,2008,15(5):27-30.
[8]石好果,林会喜,陈林,等.车排子地区侏罗系沉积模式及有利区带分析[J].特种油气藏,2017,24(3):26-30.
[9]余逸凡,戴胜群,尹太举,等.鄂尔多斯盆地下寺湾油区延长组浅水三角洲沉积研究[J].特种油气藏,2009,16(5):28-31.
[10]朱筱敏,刘媛,方庆,等.大型坳陷湖盆浅水三角洲形成条件和沉积模式:以松辽盆地三肇凹陷扶余油层为例[J].地学前缘,2012,19(1):89-99.
[11]孙雨,马世忠,姜洪福,等.松辽盆地三肇凹陷葡萄花油层河控浅水三角洲沉积模式[J].地质学报,2010,84(10):1502-1509.
[12]康玉柱.准噶尔—吐哈盆地构造体系控油作用研究[M].北京:地质出版社,2011:36-37.
[13]何登发,陈新发,况军,等.准噶尔盆地车排子-莫索湾古隆起的形成演化与成因机制[J].地学前缘,2008,15(4):42-55.
[14]鲍志东,赵艳军,祁利祺,等.构造转换带储集体发育的主控因素———以准噶尔盆地腹部侏罗系为例[J].岩石学报,2011,27(3):867-877.
[15]王敏芳,焦养泉,任建业,等.准噶尔盆地侏罗纪沉降特征及其与构造演化的关系[J].石油学报,2007,28(1):27-32.
[16]方世虎,赵孟军,卓勤功,等.准噶尔盆地中—新生代构造与沉积演化[M].北京:石油工业出版社,2015:6-13.
[17]麻伟娇,王峰,宋明星,等.不整合面上底砾岩控制油气运聚的流体证据[J].特种油气藏,2017,24(1):81-86.
[18]宋传春,张云银,李海涛,等.准中地区深层岩性圈闭识别[J].特种油气藏,2007,14(5):28-31.
[19]石好果,林会喜.准中4区块侏罗系储层成岩及油气充注特征研究[J].特种油气藏,2017,24(6):18-22.
[20]汪彦,彭军,刘建锋,等.新疆油田七区侏罗系八道湾组物源分析[J].特种油气藏,2008,15(1):13-16.
[21]张曰静.准噶尔盆地腹部下侏罗统三工河组物源体系分析[J].新疆石油地质,2012,33(5):540-542.
[22]陈林,许涛,张立宽,等.准噶尔盆地中部1区块侏罗系三工河组毯砂成岩演化及其物性演化分析[J].东北石油大学学报,2013,37(5):10-16.
[23]陈林,许涛,石好果,等.准噶尔盆地中部1区块侏罗系三工河组毯砂成藏期孔隙度恢复及其意义[J].石油与天然气地质,2014,35(4):486-493.
[24]胡素云,蔚远江,董大忠,等.准噶尔盆地腹部断裂活动对油气聚集的控制作用[J].石油学报,2006,27(1):1-7.
[25]谭绍泉,曾治平,宫亚军,等.准噶尔盆地腹部超压控制烃、储演化与油气充注过程[J].断块油气田,2014,21(3):287-291.
[26]刘德志,许涛,张敏,等.准噶尔盆地中部1区块侏罗系三工河组油气输导特征分析[J].东北石油大学学报,2013,37(2):9-16.