柴西南英西地区下干柴沟组上段蒸发岩沉积旋回特征
|
摘要
柴西南英西地区下干柴沟组上段为一套湖盆含蒸发岩系。文章综合运用薄片、岩心、钻井、测井、化验分析等资料,对研究区下干柴沟组上段蒸发岩系沉积旋回特征进行了研究。研究表明,平面上由盆地中心向边缘呈现蒸发岩-混积型碳酸盐岩-碎屑岩的环带状分布,纵向上发育2个三级旋回及6个四级旋回期次。各级蒸发岩沉积旋回具有不对称的特征,即快速湖侵、缓慢湖退。总结出研究区的五种蒸发岩岩相组合类型。研究区蒸发岩为气候干旱、盆地基底快速沉降背景下,湖退时残留盐湖中以蒸发结晶为主具有一定水深的成因,并建立了沉积旋回发育模式。
The upper member of the Lower Ganchaigou Formation in the Yingxi area, southwestern Qaidam Basin, is a set of evaporitebearing lacustrine series. Pate of thin section, cores, drillings logging as well as geochemistry were systematically used to study the characteristics of sedimentary cycles of the series in this paper. Results show a zonal distribution of evaporites to mixed carbonate rocks and to clastic rocks from the center to the margin of the basin laterally. Vertically, two third-order sedimentary cycles and six fourth-order sedimentary cycles were developed. Sedimentary cycles of all the levels are asymmetry with rapid transgression and slow regression. Five types of lithofacies combination of evaporites were identified. Evaporites were formed by evaporitive crystallization under a certain depth of lake water during regression, when there was an arid paleo-climate and rapid subsidence of the basin basement.The development model of sedimentary cycles in the study area is established accordingly.
The upper member of the Lower Ganchaigou Formation in the Yingxi area, southwestern Qaidam Basin, is a set of evaporitebearing lacustrine series. Pate of thin section, cores, drillings logging as well as geochemistry were systematically used to study the characteristics of sedimentary cycles of the series in this paper. Results show a zonal distribution of evaporites to mixed carbonate rocks and to clastic rocks from the center to the margin of the basin laterally. Vertically, two third-order sedimentary cycles and six fourth-order sedimentary cycles were developed. Sedimentary cycles of all the levels are asymmetry with rapid transgression and slow regression. Five types of lithofacies combination of evaporites were identified. Evaporites were formed by evaporitive crystallization under a certain depth of lake water during regression, when there was an arid paleo-climate and rapid subsidence of the basin basement.The development model of sedimentary cycles in the study area is established accordingly.
引文
陈启林.2007a.大型咸化湖盆地层岩性油气藏有利条件与勘探方向--以柴达木盆地柴西南古近纪为例[J].岩性油气藏,19(1):46-51.
陈启林.2007b.盐湖盆地沉积特征与岩性油气藏勘探--以柴西南古近纪盐湖盆地为例[D].北京:中国地质大学(北京).
陈郁华.1983.黄海水25℃恒温蒸发时的析盐序列及某些微量元素的分布规律[J].地质学报,(4):379-390.
杜威,刘润超,程翔,等.2017.柴达木盆地南翼山构造样式及其与油气成藏关系:三维地震解释新证据[J].高校地质学报,23(1):117-124.
宫秀梅,曾溅辉.2003.渤南洼陷古近系膏盐层对深层油气成藏的影响[J].石油勘探与开发,(5):24-27.
黄成刚,李智勇,倪祥龙,等.2017.柴达木盆地英西地区E32盐类矿物成因及油气地质意义[J].现代地质,31(4):779-790.
黄春菊,陈开远,杨香华.2002.盐湖盆地层序地层特征[J].石油与天然气地质,23(2):134-138.
胡素云,石书缘,王铜山,等.2016.膏盐环境对碳酸盐岩层系成烃、成储和成藏的影响[J].中国石油勘探,21(2):20-27.
金强.2003.柴达木盆地西部第三系蒸发岩微量元素组成及其地球化学特征[J].石油大学学报(自然科学版),(2):1-5.
刘成林,焦鹏程,王弭力,等.2003.罗布泊第四纪含盐系成岩作用特征研究[J].沉积学报,(2):240-246.
刘成林,焦鹏程,王弭力,等.2003.罗布泊盐湖巨量钙芒硝沉积及其成钾效应分析[J].矿床地质,(3):322-329.
刘成林,陈永志,马黎春,等.2010.罗布泊盐湖化学沉积序列及其控制因素[J].矿床地质焦鹏程,29(4):625-630.
刘庆,张林晔,宋国奇,等.2009.利用石膏产状研究汶东盐湖相沉积与烃源岩特征[J].高校地质学报,15(3):371-379.
施辉,刘震,连良达,等.2013.高原咸化湖盆岩性油气藏富集规律--以柴达木盆地西南区为例[J].天然气地球科学,24(4):701-711.
隋立伟,方世虎,孙永河,等.2014.柴达木盆地西部狮子沟-英东构造带构造演化及控藏特征[J].地学前缘,21(1):261-270.
王东旭,曾溅辉,宫秀梅.2005.蒸发岩层对油气成藏的影响[J].天然气地球科学,(3):329-333.
王建,席萍,刘泽纯,等.1996.柴达木盆地西部新生代气候与地形演变[J].地质论评,(2):166-173.
王力,金强,林腊梅,等.2009.柴达木盆地西部古近系-新近系优质烃源岩特征[J].天然气工业,29(2):23-26+131.
吴海,赵孟军,鲁雪松,等.2016.蒸发岩层控藏机制研究进展[J].地质科技情报,35(3):77-86.
徐士林,吕修祥,杨明慧,等.2004.库车坳陷蒸发岩对异常高压保存的控制作用[J].西安石油大学学报:自然科学版,19(4):5-8
易定红,王建功,石亚军,等.2017.柴西狮子沟地区渐新统下干柴沟组上段蒸发岩沉积演化特征[J].天然气工业,37(5):1-9.
袁静,王乾泽.2001.东营凹陷下第三系深部碎屑岩储层次生孔隙垂向分布及成因分析[J].矿物岩石,(1):43-47.
杨清堂.1989.钙芒硝的成因和沉积环境简析[J].沉积学报,(3):137-141.
张晨晨,张顺,魏巍,等.2014.松辽盆地嫩江组T-R旋回控制下的层序结构与沉积响应[J].中国科学(D辑),44(12):2618-2636.
曾联波,周天伟,吕修祥.2004.构造挤压对库车坳陷异常地层压力的影响[J].地质论评,(5):471-475.
赵振宇,周瑶琪,马晓鸣,等.2007.含油气盆地中蒸发岩层对油气成藏的重要影响[J].石油与天然气地质,28(2):299-308.
Cao Z,Wei Z,Lin C,et al.2014.The kinetics of oil generation in a saline basin:a case study of the source rock of tertiary in Zha-haquan depression,Qaidam Basin,China[J].Petroleum Science and Technology,32:2648-2657.
Halbouty M T.2003.Giant Oil and Gas Fields of the Decade,1990-1999[M].Tulsa:AAPG.
Johnson J G,Klapper G and Sandberg C A.1985.Devonian eusttic fluctuations in Euramerica[J].Geol.Soc.Am.Bull.,96:567-587.
Matano F,Barbieri M,Di Nocera S,et al.2005.Stratigraphy and strontium geochemistry of Messinian evaporite-bearing successions of the southern Apenninesforedeep,Italy:implicationfortheMediterranean“salinitycrisis”and regional palaeogeography[J].Palaeogeography,Palaeoclimatology,Palaeoecology,217:87-114.
Ulisses T M and Carry D K.1996.Development of sediment over pressure and its effective thermal maturation:application to the Gulf of Mexico Basin[J].AAPG Bulletin,(9):1367-1396.
陈启林.2007b.盐湖盆地沉积特征与岩性油气藏勘探--以柴西南古近纪盐湖盆地为例[D].北京:中国地质大学(北京).
陈郁华.1983.黄海水25℃恒温蒸发时的析盐序列及某些微量元素的分布规律[J].地质学报,(4):379-390.
杜威,刘润超,程翔,等.2017.柴达木盆地南翼山构造样式及其与油气成藏关系:三维地震解释新证据[J].高校地质学报,23(1):117-124.
宫秀梅,曾溅辉.2003.渤南洼陷古近系膏盐层对深层油气成藏的影响[J].石油勘探与开发,(5):24-27.
黄成刚,李智勇,倪祥龙,等.2017.柴达木盆地英西地区E32盐类矿物成因及油气地质意义[J].现代地质,31(4):779-790.
黄春菊,陈开远,杨香华.2002.盐湖盆地层序地层特征[J].石油与天然气地质,23(2):134-138.
胡素云,石书缘,王铜山,等.2016.膏盐环境对碳酸盐岩层系成烃、成储和成藏的影响[J].中国石油勘探,21(2):20-27.
金强.2003.柴达木盆地西部第三系蒸发岩微量元素组成及其地球化学特征[J].石油大学学报(自然科学版),(2):1-5.
刘成林,焦鹏程,王弭力,等.2003.罗布泊第四纪含盐系成岩作用特征研究[J].沉积学报,(2):240-246.
刘成林,焦鹏程,王弭力,等.2003.罗布泊盐湖巨量钙芒硝沉积及其成钾效应分析[J].矿床地质,(3):322-329.
刘成林,陈永志,马黎春,等.2010.罗布泊盐湖化学沉积序列及其控制因素[J].矿床地质焦鹏程,29(4):625-630.
刘庆,张林晔,宋国奇,等.2009.利用石膏产状研究汶东盐湖相沉积与烃源岩特征[J].高校地质学报,15(3):371-379.
施辉,刘震,连良达,等.2013.高原咸化湖盆岩性油气藏富集规律--以柴达木盆地西南区为例[J].天然气地球科学,24(4):701-711.
隋立伟,方世虎,孙永河,等.2014.柴达木盆地西部狮子沟-英东构造带构造演化及控藏特征[J].地学前缘,21(1):261-270.
王东旭,曾溅辉,宫秀梅.2005.蒸发岩层对油气成藏的影响[J].天然气地球科学,(3):329-333.
王建,席萍,刘泽纯,等.1996.柴达木盆地西部新生代气候与地形演变[J].地质论评,(2):166-173.
王力,金强,林腊梅,等.2009.柴达木盆地西部古近系-新近系优质烃源岩特征[J].天然气工业,29(2):23-26+131.
吴海,赵孟军,鲁雪松,等.2016.蒸发岩层控藏机制研究进展[J].地质科技情报,35(3):77-86.
徐士林,吕修祥,杨明慧,等.2004.库车坳陷蒸发岩对异常高压保存的控制作用[J].西安石油大学学报:自然科学版,19(4):5-8
易定红,王建功,石亚军,等.2017.柴西狮子沟地区渐新统下干柴沟组上段蒸发岩沉积演化特征[J].天然气工业,37(5):1-9.
袁静,王乾泽.2001.东营凹陷下第三系深部碎屑岩储层次生孔隙垂向分布及成因分析[J].矿物岩石,(1):43-47.
杨清堂.1989.钙芒硝的成因和沉积环境简析[J].沉积学报,(3):137-141.
张晨晨,张顺,魏巍,等.2014.松辽盆地嫩江组T-R旋回控制下的层序结构与沉积响应[J].中国科学(D辑),44(12):2618-2636.
曾联波,周天伟,吕修祥.2004.构造挤压对库车坳陷异常地层压力的影响[J].地质论评,(5):471-475.
赵振宇,周瑶琪,马晓鸣,等.2007.含油气盆地中蒸发岩层对油气成藏的重要影响[J].石油与天然气地质,28(2):299-308.
Cao Z,Wei Z,Lin C,et al.2014.The kinetics of oil generation in a saline basin:a case study of the source rock of tertiary in Zha-haquan depression,Qaidam Basin,China[J].Petroleum Science and Technology,32:2648-2657.
Halbouty M T.2003.Giant Oil and Gas Fields of the Decade,1990-1999[M].Tulsa:AAPG.
Johnson J G,Klapper G and Sandberg C A.1985.Devonian eusttic fluctuations in Euramerica[J].Geol.Soc.Am.Bull.,96:567-587.
Matano F,Barbieri M,Di Nocera S,et al.2005.Stratigraphy and strontium geochemistry of Messinian evaporite-bearing successions of the southern Apenninesforedeep,Italy:implicationfortheMediterranean“salinitycrisis”and regional palaeogeography[J].Palaeogeography,Palaeoclimatology,Palaeoecology,217:87-114.
Ulisses T M and Carry D K.1996.Development of sediment over pressure and its effective thermal maturation:application to the Gulf of Mexico Basin[J].AAPG Bulletin,(9):1367-1396.