马海东构造带下干柴沟组下段高分辨率层序地层和砂体展布特征
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摘要
以高分辨率层序地层学和沉积学理论为指导,通过综合运用地震、测录井、岩芯等资料,对马海东构造带古近系下干柴沟组下段进行了高分辨率层序地层学研究。研究区共识别出不同规模的层序界面共6种类型,包括角度不整合、大规模冲刷面、中等规模冲刷面、小型河道下切面、地层样式转换面和沉积环境转换面。在层序界面识别的基础上,将目的层段划分为1个长期基准面旋回(LSC1)、3个中期基准面旋回(MSC1-MSC3)和12个短期基准面旋回(SSC1-SSC12),其中MSC2发育低可容纳空间向上"变深"非对称型(A1)旋回结构,MSC1、MSC3发育高可容纳空间向上"变深"非对称型(A2)旋回结构。建立了研究区层序地层等时对比格架,探讨了各中期层序沉积微相特征和砂体展布规律,结果表明,MSC2中期旋回内发育辫状河道心滩沉积微相,沉积物以砂砾岩、含砾粗砂岩、中细砂岩为主,砂体垂向厚层叠置,横向广泛连通,为研究区最为有利砂体发育层段。
The sequence stratigraphy and sandbody distribution of the lower Xiaganchaigou Formation(Paleogene)in the eastern Mahai Uplift were studied using seismic,well log,and drill core data.Six types of sequence boundary were identified,including angular unconformity surface,large scale erosion surface,middle scale erosion surface,small scale channel erosion surface,stratigraphic pattern transition,and sedimentary environment transition.Using these sequence boundaries,the major target intervals of the Xiaganchaigou Formation were divided into a large-scale base level cycle(LSC1),three middle-scale base level cycles(MSC1-MSC3),and twelve small-scale base level cycles(SSC1-SSC12).Among them,the middlescale base level cycles can be divided into two different types:MSC2represents a non-symmetric deepening-upward cycle formed in low accommodation(A1)and MSC1 and MSC3represent non-symmetric deepening-upward cycles formed in high accommodation(A2).A framework of stratigraphic correlation of the study area was established using middle-and small-scale cycles.Analysis of micro-facies and sandbody size and distribution under this sequence stratigraphic framework shows that MSC2middle-scale sequence is characterized by channel and channel bar sedimentary micro-facies,with sediments mainly composed of sandy conglomerate,coarse-grained sandstone with gravel,and medium-and fine-grained sandstone that form vertically superimposed and laterally connected sand bodies.Thus,MSC2 is the most favorable reservoir sandbody in the study area.
The sequence stratigraphy and sandbody distribution of the lower Xiaganchaigou Formation(Paleogene)in the eastern Mahai Uplift were studied using seismic,well log,and drill core data.Six types of sequence boundary were identified,including angular unconformity surface,large scale erosion surface,middle scale erosion surface,small scale channel erosion surface,stratigraphic pattern transition,and sedimentary environment transition.Using these sequence boundaries,the major target intervals of the Xiaganchaigou Formation were divided into a large-scale base level cycle(LSC1),three middle-scale base level cycles(MSC1-MSC3),and twelve small-scale base level cycles(SSC1-SSC12).Among them,the middlescale base level cycles can be divided into two different types:MSC2represents a non-symmetric deepening-upward cycle formed in low accommodation(A1)and MSC1 and MSC3represent non-symmetric deepening-upward cycles formed in high accommodation(A2).A framework of stratigraphic correlation of the study area was established using middle-and small-scale cycles.Analysis of micro-facies and sandbody size and distribution under this sequence stratigraphic framework shows that MSC2middle-scale sequence is characterized by channel and channel bar sedimentary micro-facies,with sediments mainly composed of sandy conglomerate,coarse-grained sandstone with gravel,and medium-and fine-grained sandstone that form vertically superimposed and laterally connected sand bodies.Thus,MSC2 is the most favorable reservoir sandbody in the study area.
引文
陈欢庆,赵应成,高兴军,谢雯,穆剑东.2014.高分辨率层序地层学在地层精细划分与对比中的应用---以辽河西部凹陷某试验区于楼油层为例.地层学杂志,38(3):317-328.
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郭娟娟,魏东涛,潘建国,徐学龙,孔旭,王彦君,魏彩茹.2014.准噶尔盆地东部西泉地区下三叠统高分辨层序地层与砂体预测.高校地质学报,20(1):131-138.
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金振奎,齐聪伟,薛建勤,王春生.2006.柴达木盆地北缘结绿素-红山地区古新统至中新统沉积相.古地理学报,8(3):377-388.
李洋,朱筱敏,,赵东娜,董艳蕾,张明君,吴冬,杨朝强,王庆帅.2014.琼东南盆地崖13-1气田陵三段高分辨率层序地层及沉积体系研究.天然气地球科学,25(7):999-1010.
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卢海建,王二七,孟恺.2014.中中新世南祁连山的构造抬升---来自柴达木盆地大红沟剖面的沉积证据.地质科学,49(1):95-103.
马新民,司丹,马峰,孙松岭,程玉红,倪祥龙,张平.2014.柴达木盆地北缘马北地区古今构造与油气藏的耦合.现代地质,28(1):131-138.
孟繁聪,张建新.2008.柴北缘绿梁山早古生代花岗岩浆作用与高温变质作用的同时性.岩石学报,24(7):1585-1594.
彭立才,朱思俊,王卫星,李吉军.2007.柴达木盆地北缘马北Ⅰ号圈闭油气成藏机理与模式.新疆石油地质,27(6):673-677.
阮壮,朱筱敏,何宇航,谭广辉.2012.大庆长垣北部葡萄花上部油层高分辨率层序地层划分.沉积学报,30(2):301-309.
孙国强,杜忠明,贾艳艳,周飞,郝小梅,史基安.2012.柴达木盆地北缘西段古近纪以来沉积模式研究.岩性油气藏,24(4):13-18.
孙国强,马进业,司丹,王海峰,王珑,史基安.2013.地震属性在马仙地区下干柴沟组下段沉积环境分析中的应用.天然气地球科学,24(6):1246-1252.
孙国强,谢梅,张永庶,吴志雄,王国仓.2011.柴北缘马北地区下干柴沟组下段沉积特征及演化.岩性油气藏,23(6):56-60.
谭程鹏,于兴河,李胜利,许磊,陈彬滔,李顺利,单新.2014.准噶尔盆地南缘八道湾组扇三角洲露头基准面旋回与储层的响应关系.中国地质,41(1):197-205.
汪立群,徐凤银,庞雄奇,陈琰,彭立才.2005.马海-大红沟凸起油气勘探成果与柴达木盆地北缘的勘探方向.石油学报,26(3):21-25.
王国仓,孙敏卓,王鹏,张庆饶,邓文,龙国徽,谢梅,史基安.2012.柴北缘马北8号构造下干柴沟组下段砂岩储层特征.石油学报,33(2):241-248.
吴因业,宋岩,贾承造,郭彬程,张启全,季汉成,李军,张建平.2005.柴北缘地区层序格架下的沉积特征.地学前缘,12(3):195-203.
吴志雄,史基安,张永庶,邹开真,王牧,王大成,孙国强.2013.柴达木盆地北缘马北地区古近系辫状河微相特征及沉积模式.天然气地球科学,23(5):849-855.
肖玲,张井涛,郑荣才,魏钦廉.2013.高分辨率层序地层学在隐蔽油气藏中的应用---以辽东湾旅大地区古近系东营组为例.地层学杂志,37(3):369-376.
肖毅,王红亮,邓宏文,龙国清,郑文波,单俊峰,任晓华.2008.辽河清水洼陷东营组高分辨率层序格架下沉积演化特征及有利区带预测.沉积学报,26(6):1014-1020.
杨用彪,孟庆泉,宋春晖,胡思虎,张平,刘平,陈传飞.2009.柴达木盆地东北部新近纪构造旋转及其意义.地质论评,55(6):775-784.
尹安,党玉琪,陈宣华,汪立群,蒋武明,蒋荣宝,王小凤,周苏平,刘明德,马立协.2007.柴达木盆地新生代演化及其构造重建.地质力学学报,13(3):193-211.
于景维,郑荣才,祁利祺,张宗斌,文华国,李云.2014.准噶尔盆地阜康凹陷东部斜坡带中侏罗统头屯河组高分辨层序与沉积微相精细分析.地质论评,60(6):1337-1347.
张锐,纪友亮,孙永娥.2011.柴达木盆地北缘马海凸起古近系-新近系层序地层格架.煤炭技术,30(12):119-120.
赵加凡,陈小宏,杜业波.2004.柴达木第三纪湖盆沉积演化史.石油勘探与开发,31(3):41-44.
郑荣才,彭军,彭光明.2003.高分辨率层序分析在油藏开发工程中的应用.沉积学报,21(4):654-662.
郑荣才,文华国,李凤杰编著.2010.高分辨率层序地层学.北京:地质出版社.1-404.
Cross T A.1994.High-resolution stratigraphic correlation from the perspective of base-level cycles and sediment accommodation.Proceedings of Northwestern European Sequence Stratigraphy Congress.105-123.
邓宏文.2009.高分辨率层序地层学应用中的问题探析.古地理学报,11(5):471-480.
邓宏文,王红亮,祝永军,Cross T A.2002.高分辨率层序地层学---原理及应用.北京:地质出版社.16-22.
郭娟娟,魏东涛,潘建国,徐学龙,孔旭,王彦君,魏彩茹.2014.准噶尔盆地东部西泉地区下三叠统高分辨层序地层与砂体预测.高校地质学报,20(1):131-138.
胡光义,陈飞,孙立春,范廷恩,赵春明,吴胜和.2013.高分辨率层序地层学在河流相油田开发中的应用.沉积学报,31(4):600-607.
胡源,陈开远,赵磊,孙阳,李庚.2013.高分辨率层序格架约束下的储层预测.石油实验地质,35(1):98-103.
金振奎,齐聪伟,薛建勤,王春生.2006.柴达木盆地北缘结绿素-红山地区古新统至中新统沉积相.古地理学报,8(3):377-388.
李洋,朱筱敏,,赵东娜,董艳蕾,张明君,吴冬,杨朝强,王庆帅.2014.琼东南盆地崖13-1气田陵三段高分辨率层序地层及沉积体系研究.天然气地球科学,25(7):999-1010.
刘殿鹤,李凤杰,郑荣才,刘琪,蒋斌.2009.柴北缘西段古近系下干柴沟组沉积相特征分析.天然气地球科学,20(6):847-853.
卢海建,王二七,孟恺.2014.中中新世南祁连山的构造抬升---来自柴达木盆地大红沟剖面的沉积证据.地质科学,49(1):95-103.
马新民,司丹,马峰,孙松岭,程玉红,倪祥龙,张平.2014.柴达木盆地北缘马北地区古今构造与油气藏的耦合.现代地质,28(1):131-138.
孟繁聪,张建新.2008.柴北缘绿梁山早古生代花岗岩浆作用与高温变质作用的同时性.岩石学报,24(7):1585-1594.
彭立才,朱思俊,王卫星,李吉军.2007.柴达木盆地北缘马北Ⅰ号圈闭油气成藏机理与模式.新疆石油地质,27(6):673-677.
阮壮,朱筱敏,何宇航,谭广辉.2012.大庆长垣北部葡萄花上部油层高分辨率层序地层划分.沉积学报,30(2):301-309.
孙国强,杜忠明,贾艳艳,周飞,郝小梅,史基安.2012.柴达木盆地北缘西段古近纪以来沉积模式研究.岩性油气藏,24(4):13-18.
孙国强,马进业,司丹,王海峰,王珑,史基安.2013.地震属性在马仙地区下干柴沟组下段沉积环境分析中的应用.天然气地球科学,24(6):1246-1252.
孙国强,谢梅,张永庶,吴志雄,王国仓.2011.柴北缘马北地区下干柴沟组下段沉积特征及演化.岩性油气藏,23(6):56-60.
谭程鹏,于兴河,李胜利,许磊,陈彬滔,李顺利,单新.2014.准噶尔盆地南缘八道湾组扇三角洲露头基准面旋回与储层的响应关系.中国地质,41(1):197-205.
汪立群,徐凤银,庞雄奇,陈琰,彭立才.2005.马海-大红沟凸起油气勘探成果与柴达木盆地北缘的勘探方向.石油学报,26(3):21-25.
王国仓,孙敏卓,王鹏,张庆饶,邓文,龙国徽,谢梅,史基安.2012.柴北缘马北8号构造下干柴沟组下段砂岩储层特征.石油学报,33(2):241-248.
吴因业,宋岩,贾承造,郭彬程,张启全,季汉成,李军,张建平.2005.柴北缘地区层序格架下的沉积特征.地学前缘,12(3):195-203.
吴志雄,史基安,张永庶,邹开真,王牧,王大成,孙国强.2013.柴达木盆地北缘马北地区古近系辫状河微相特征及沉积模式.天然气地球科学,23(5):849-855.
肖玲,张井涛,郑荣才,魏钦廉.2013.高分辨率层序地层学在隐蔽油气藏中的应用---以辽东湾旅大地区古近系东营组为例.地层学杂志,37(3):369-376.
肖毅,王红亮,邓宏文,龙国清,郑文波,单俊峰,任晓华.2008.辽河清水洼陷东营组高分辨率层序格架下沉积演化特征及有利区带预测.沉积学报,26(6):1014-1020.
杨用彪,孟庆泉,宋春晖,胡思虎,张平,刘平,陈传飞.2009.柴达木盆地东北部新近纪构造旋转及其意义.地质论评,55(6):775-784.
尹安,党玉琪,陈宣华,汪立群,蒋武明,蒋荣宝,王小凤,周苏平,刘明德,马立协.2007.柴达木盆地新生代演化及其构造重建.地质力学学报,13(3):193-211.
于景维,郑荣才,祁利祺,张宗斌,文华国,李云.2014.准噶尔盆地阜康凹陷东部斜坡带中侏罗统头屯河组高分辨层序与沉积微相精细分析.地质论评,60(6):1337-1347.
张锐,纪友亮,孙永娥.2011.柴达木盆地北缘马海凸起古近系-新近系层序地层格架.煤炭技术,30(12):119-120.
赵加凡,陈小宏,杜业波.2004.柴达木第三纪湖盆沉积演化史.石油勘探与开发,31(3):41-44.
郑荣才,彭军,彭光明.2003.高分辨率层序分析在油藏开发工程中的应用.沉积学报,21(4):654-662.
郑荣才,文华国,李凤杰编著.2010.高分辨率层序地层学.北京:地质出版社.1-404.
Cross T A.1994.High-resolution stratigraphic correlation from the perspective of base-level cycles and sediment accommodation.Proceedings of Northwestern European Sequence Stratigraphy Congress.105-123.