黄骅坳陷板桥凹陷古近系沙一段中部层序地层学研究与岩性油气藏勘探
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摘要
黄骅坳陷板桥凹陷含油气储层主要为深湖相泥岩之中的湖底扇砂体。由于湖底扇沉积属突发性洪水事件成因,湖底扇砂体的分布较为复杂,预测湖底扇砂体的难度较大。通过湖底扇沉积特征研究,提出板桥凹陷湖底扇砂体为扇三角洲前缘重力流滑塌成因。湖底扇砂体在垂直于重力流方向上呈透镜状分布;而在平行于重力流方向上,湖底扇砂体则表现为叠瓦状展布。依据湖底扇砂体的井-震响应特征,运用地震相分析以及地震属性提取等手段,预测了湖底扇砂体的分布,发现湖底扇沉积具有优先充填古地貌低势区的规律,提出了岩性油气藏勘探的有利目标。
The sublacustrine fan sandbodies developed in the deep lacustrine mudstones are the most favorable reservoirs and the main target of the lithologic reservoir exploration in Banqiao sag.The distribution of the sublacustrine fan sandbodies is so subtle and complicated due to their nature of sudden flood events that it's difficult to predict.Based on the sedimentary study on the sublacustrine fan,the author suggests that the sublacustrine fan sandbodies slump deposits of gravity flow on a fan delta front.The sublacustrine fan sandbodies occur in lenticularity vertical to the direction of the gravity flow and in imbricate arrangement parallel to the direction of the gravity flow.According to the responses of sublacustrine fan,the author predicted the distribution of the sublacustrine through seismic facies analysis and seismic attributes Abstraction,revealed that the distribution of the sublacustrine fan was controlled by the geomorphologic low and pointed out the favorable targets for lithologic reservoir exploration in Banqiao sag.
The sublacustrine fan sandbodies developed in the deep lacustrine mudstones are the most favorable reservoirs and the main target of the lithologic reservoir exploration in Banqiao sag.The distribution of the sublacustrine fan sandbodies is so subtle and complicated due to their nature of sudden flood events that it's difficult to predict.Based on the sedimentary study on the sublacustrine fan,the author suggests that the sublacustrine fan sandbodies slump deposits of gravity flow on a fan delta front.The sublacustrine fan sandbodies occur in lenticularity vertical to the direction of the gravity flow and in imbricate arrangement parallel to the direction of the gravity flow.According to the responses of sublacustrine fan,the author predicted the distribution of the sublacustrine through seismic facies analysis and seismic attributes Abstraction,revealed that the distribution of the sublacustrine fan was controlled by the geomorphologic low and pointed out the favorable targets for lithologic reservoir exploration in Banqiao sag.
引文
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24薛士荣.黄骅裂谷盆地石油地质特征及油气分布规律[M].北京:石油工业出版社,1991
25王德发,张服民.黄骅坳陷第三系沉积与沉积环境[M].北京:地质出版社,1987
2徐怀大,魏魁生,洪卫东,等.层序地层学原理[M].北京:石油工业出版社,1993
3陈淑珠.山东梁家楼地区下第三系水下扇[J].石油勘探与开发,1986,13(5):45~51
4黄建军,纪友亮,王改卫,等.东濮凹陷古近系含盐地层层序特征及成因分析[J].石油与天然气地质,2007,28(4):479~484
5邓宏文,吴海波,王宁,等.河流相层序地层划分方法———以松辽盆地下白垩统扶余油层为例[J].石油与天然气地质,2007,28(5):621~627
6蒲玉国,荣启宏,宋建勇,等.东营凹陷纯梁地区滚动勘探开发潜力分析[J].石油勘探与开发,1999,26(6):18~22
7刘敬强,田世澄,焦勇,等.层序地层学与成藏动力学的耦合及在油气勘探中的意义[J].石油与天然气地质,2007,28(5):628~633
8陈洪德,倪新锋.陇东地区三叠系延长组沉积层序及充填响应特征[J].石油与天然气地质,2006,27(2):143~151
9 Nilson T H.Models of ancient turbidite deposits[J].Society ofEconomic Paleontologists and Mineralogists Short Course,1984,14(2):301-325
10 Michum J R.Seismic stratigraphic expression of submarine fans,seismic stratigraphyⅡ:an integrated approach to hydrocarbon ex-ploration[J].AAPG Bulletin,1985,39(1):117-138
11 Mchargue TR.Webb J E.Internal geometry seismic facies and pe-troleum potential of canyons and inner fan channels of the Indussubmarine fan[J].AAPG Bulletin,1986,70(1):161-180
12 Kolla V,Coumes F.Morphology,internal structure,seismic stratig-raphy and sedimentation of the Indus fan[J].AAPG Bulletin,1987,71(4):650-677
13 Shepard F P.Submarine cayons:multiple causes and long-timepersistence[J].AAPG Bulletin,1981,65(6):1 062-1 077
14薛良清.层序地层学研究现状、方法与前景[J].石油勘探与开发,1995,22(1):8~12
15焦翠华,王海更,牛玉杰,等.塔里木盆地哈得4油田东河砂岩层序地层界面类型及测井识别方法[J].石油与天然气地质,2007,28(1):69~75
16杨明慧,王嗣敏,陈善勇,等.渤海湾盆地黄骅坳陷奥陶系碳酸盐岩潜山成因分类与分布[J].石油与天然气地质,2005,26(3):310~316
17国庆鹏,金振奎,曹志军,等.济阳坳陷大芦家区块薄储集层预测研究[J].石油勘探与开发,2005,32(5):82~85
18荣启宏,蒋有录,宋建勇.东营凹陷西南部地区油气藏形成与分布规律研究[M].北京:石油工业出版社,1998
19张林晔,刘庆,张春荣.东营凹陷梁家楼油田成藏模式再研究[J].石油与天然气地质,2004,25(3):15~20
20单俊峰,陈振岩,回雪峰.辽河坳陷西部凹陷坡洼过渡带岩性油气藏形成条件[J].石油勘探与开发,2005,32(6):42~45
21于志海,杨池银.黄骅坳陷天然气地质[M].北京:石油工业出版社,1997
22高锡兴.黄骅坳陷石油天然气地质[M].北京:石油工业出版社,1997
23薛士荣.黄骅坳陷下第三系重力流沉积及含油气性的初步探讨[M].北京:石油工业出版社,1994
24薛士荣.黄骅裂谷盆地石油地质特征及油气分布规律[M].北京:石油工业出版社,1991
25王德发,张服民.黄骅坳陷第三系沉积与沉积环境[M].北京:地质出版社,1987
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