板桥凹陷断控重力流沉积特征及沉积模式
|
摘要
综合利用岩心、测井及地震等资料,对板桥凹陷A井区沙一段下亚段进行了深入研究。A井区沙一段下亚段砂岩段为湖底扇的重力流沉积,断裂对重力流的发育起到了主控作用。断裂不仅为重力流提供了沉积空间,更重要的是当沉积空间不足以容纳重力流沉积时,它对重力流起到了阻挡作用,使重力流砂体展布方向由北北东向转为北东东向。建立了发育于斜坡且由主控断层控制的重力流沉积模式,该模式将为板桥凹陷隐蔽圈闭油气藏的寻找和评价提供依据。
According to the data of drill core,seismic and well logging,the sedimentary characteristics and model of the lower of the first member of Shahejie Formation was researched in A area of Banqiao Depression. The sedimentary facies was gravity flow of sub-lacustrine fan. And gravity flow was mainly controlled by faults, which provided sedimentary space for gravity flow, and blocked the gravity flow when the sedimentary space can't accommodate the sedimentary deposit. Just because of fault blocking, the sand orientation of gravity flow changed from NNE to NEE. On the base of the analysis,the depositional model of fault-controlling gravity flow has been built. The model can provide useful information for prospecting and evaluating subtle traps.
According to the data of drill core,seismic and well logging,the sedimentary characteristics and model of the lower of the first member of Shahejie Formation was researched in A area of Banqiao Depression. The sedimentary facies was gravity flow of sub-lacustrine fan. And gravity flow was mainly controlled by faults, which provided sedimentary space for gravity flow, and blocked the gravity flow when the sedimentary space can't accommodate the sedimentary deposit. Just because of fault blocking, the sand orientation of gravity flow changed from NNE to NEE. On the base of the analysis,the depositional model of fault-controlling gravity flow has been built. The model can provide useful information for prospecting and evaluating subtle traps.
引文
[1]大港油田石油地质志编辑委员会.中国石油地质志:卷四.大港油田[M].北京:石油工业出版社,1991.
[2]李丕龙,蔡进功,王居峰,等.陆相断陷盆地油气地质与勘探:卷二.陆相断陷盆地沉积体系与油气分布[M].北京:石油工业出版社,2003.
[3]姜在兴.沉积学[M].北京:石油工业出版社,2003.
[4]曾允孚,夏文杰.沉积岩石学[M].北京:地质出版社,1986.
[5]李顺明.低密度浊流的沉积成因及控制因素———以东营凹陷广利油田纯化镇组为例[J].油气地质与采收率,2005,12(4):29-31.
[6]Cross TA.High-resolution stratigraphic correlation from the per-spective of base-level cycles and sediment accommodation:pro-ceedings of northwestern European sequence stratigraphy congress[C].Paris:Editions Technique,1994:1-13.
[7]廖远涛,张世民,夏鹏远,等.东濮凹陷文东地区沙三段层序地层学特征[J].地球科学,2005,30(2):133-139.
[8]廖远涛,王华,王家豪,等.东濮凹陷文东—前梨园地区沙三段、沙四段沉积特征和有利储集体预测[J].石油勘探与开发,2004,31(3):75-78.
[9]蔺连第,朗艳,金蕙,等.二连盆地乌里雅斯太凹陷早白垩世湖底扇[J].石油勘探与开发,2005,32(3):27-32.
[10]Van Wagoner J C,Mitchum R M,Campion K M,et al.Siliciclastic sequence stratigraphy in well logs,core sand outcrops:Concepts for high-resolution correlation of time and facies[J].AAPG Methods in Exploration Series,1990,(7):1-55.
[11]李丕龙,张善文,宋国奇,等.断陷盆地隐蔽油气藏形成机制———以渤海湾盆地济阳坳陷为例[J].石油实验地质,2004,26(1):3-10.
[12]姜在兴,赵徵林,刘孟慧.一种沿深水箕状谷纵向搬运的重力流沉积[J].石油实验地质,1988,10(2):106-116.
[13]胡耀军,陈昭年,刘伟兴,等.大港滩海区沙一段下部重力流水道沉积特征分析[J].断块油气田,2002,9(1):18-21.
[2]李丕龙,蔡进功,王居峰,等.陆相断陷盆地油气地质与勘探:卷二.陆相断陷盆地沉积体系与油气分布[M].北京:石油工业出版社,2003.
[3]姜在兴.沉积学[M].北京:石油工业出版社,2003.
[4]曾允孚,夏文杰.沉积岩石学[M].北京:地质出版社,1986.
[5]李顺明.低密度浊流的沉积成因及控制因素———以东营凹陷广利油田纯化镇组为例[J].油气地质与采收率,2005,12(4):29-31.
[6]Cross TA.High-resolution stratigraphic correlation from the per-spective of base-level cycles and sediment accommodation:pro-ceedings of northwestern European sequence stratigraphy congress[C].Paris:Editions Technique,1994:1-13.
[7]廖远涛,张世民,夏鹏远,等.东濮凹陷文东地区沙三段层序地层学特征[J].地球科学,2005,30(2):133-139.
[8]廖远涛,王华,王家豪,等.东濮凹陷文东—前梨园地区沙三段、沙四段沉积特征和有利储集体预测[J].石油勘探与开发,2004,31(3):75-78.
[9]蔺连第,朗艳,金蕙,等.二连盆地乌里雅斯太凹陷早白垩世湖底扇[J].石油勘探与开发,2005,32(3):27-32.
[10]Van Wagoner J C,Mitchum R M,Campion K M,et al.Siliciclastic sequence stratigraphy in well logs,core sand outcrops:Concepts for high-resolution correlation of time and facies[J].AAPG Methods in Exploration Series,1990,(7):1-55.
[11]李丕龙,张善文,宋国奇,等.断陷盆地隐蔽油气藏形成机制———以渤海湾盆地济阳坳陷为例[J].石油实验地质,2004,26(1):3-10.
[12]姜在兴,赵徵林,刘孟慧.一种沿深水箕状谷纵向搬运的重力流沉积[J].石油实验地质,1988,10(2):106-116.
[13]胡耀军,陈昭年,刘伟兴,等.大港滩海区沙一段下部重力流水道沉积特征分析[J].断块油气田,2002,9(1):18-21.
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