THE RESERVOIR CHARACTERISTICS OF YANCHANG GROUP IN FUXIAN REGION, ERDOS BASIN
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摘要: 富县是鄂尔多斯盆地东南部延长组油气勘探程度相对较低的一个地区,储层问题是制约该区延长组油气勘探的关键。在前人工作的基础上,利用露头、岩心、测井及多种微观分析资料对富县地区延长组储集砂体沉积成因及其展布、储层岩石学特征、储层孔隙结构及物性特征等进行系统研究得出,该区延长组主要为典型的特低孔渗致密储层,长2,长6,长8是延长组储层相对较为发育的3个主要油层组。Abstract: Fuxian County is an area where the degree of exploration for oil and gas in Yanchang Group in the southeast of Erdos Basin is relatively low.Reservoir is a key problem that limit the petroleum exploration in Yanchang Group in this area.Based on the researches of predecessors,the depositional genesis and distribution of reservoir sands as well as the petrologic characteristics,the pore texture and the physical properties of the main Yanchang Group oil reservoirs were studied by using the data of outcrop,core and logging.The result shows that Yanchang Group in this area is a typical tight reservoir with extra-low porosity and permeability.Chang 2,Chang 6 and Chang 8 are three favourable oil-bearing horizons developing in Yanchang Group in this area.
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[1] 长庆油田石油地质志编写组.中国石油地质志(卷十二)·长庆油田[M].北京:石油工业出版社,1992.1~399 [2] 朱国华.陕甘宁盆地西南部上三叠统延长统低渗透砂体和次生孔隙砂体的形成[J].沉积学报,1985,3(2):1~17 [3] 柳益群,李文厚.陕甘宁盆地东部上三叠统含油长石砂岩的成岩特点及孔隙演化[J].沉积学报,1996,14(3):87~95 [4] 喻建,韩永林,凌升阶.鄂尔多斯盆地三叠系延长组油田成藏地质特征及油藏类型[J].中国石油勘探,2001,6(4) :13~19 [5] 文玲,胡书毅,田海芹.靖安油田延长组长6段低孔低渗透储层特征及评价[J].西北地质,2001,34(4):53~60 [6] 李春玉,谢渊,刘绍光等.陕北富县延长组特低渗砂岩储层控制因素分析[J].成都理工学院学报,2002,29(3):285~289 [7] 杨华,窦伟坦,喻建.鄂尔多斯盆地低渗透油藏勘探新技术[J].中国石油勘探,2003,8(1):32~40 [8] 杨华,付金华,喻建.陕北地区大型三角洲油藏富集规律及勘探技术应用[J].石油学报,2003,24(3):6~10 [9] 李斌,朱永铭,童孝华等.靖安油田上三叠统长6储集层成岩作用[J].新疆石油地质,2003,24(4):292~295 [10] 谢渊,王剑,刘家铎等.鄂尔多斯盆地东南部延长组湖盆致密砂岩储层层序地层与油气勘探[M].北京:地质出版社,2004.1~143 [11] 孙肇才.简论鄂尔多斯盆地地质构造风格及其油气潜力[J].石油实验地质,2000,22(4):291~296 [12] 张渝昌.中国含油气盆地原型分析[M].南京:南京大学出版社,1997.1~450 [13] 曾少华.陕北三叠系延长统湖盆三角洲沉积模式的建立[J].石油与天然气地质,1992,13(2):229~235 [14] 刘宝珺.沉积岩石学[M].北京:地质出版社,1980.1~212
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