文档介绍：中文摘要论文题目: 专业: 硕士生: 指导教师: 鄂尔多斯盆地直罗油田延长组长8储层特征石油与天然气周振锋(签名) 王桂成(签名) 肖光义(签名) 摘要本文通过鄂尔多斯盆地直罗油田三叠系延长组长8储层特征研究,分别对其沉积相、储层特征、成岩作用、物性特征、孔隙结构特征及储层的影响因素等进行储层的综合评价,最后对其有利勘探目标区进行预测。该区直罗油田长8期为湖泊三角洲沉积体系,主要发育三角洲前缘亚相,水下分流河道为最有利的沉积微相。依据沉积旋回特征和它的标志层,将长8层细分为长8。和长 8。两个小层,且研究区存在东北、西南两大物源,属于混源沉积区带。储层岩性以细一中粒岩屑长石、长石岩屑砂岩为主。长8储层总体属于低渗特低渗透储层,孔隙类型主要为溶孔一粒间孔和粒间孔一溶孔两种类型。依据岩性、孔渗等多种因素,将长8储层划分为三类。结合区域地质背景和延长组沉积演化特点,以及岩石类型、岩性组合、沉积构造、测井相和剖面结构等特征的综合分析,认为长82储层有利区位于富西2和资30 井区,长8l储层有利区位于芦46和资9井区。关键词:鄂尔多斯盆地;直罗油田;延长组长8;储层特征论文类型:应用研究英文摘要 Subject:The characteristic ofChang 8 reservior inYanchang fomafion in Zhiluo Oilfield ,Ordos basin Abstract Tllisarticleisbased on theChang 8reservoir characteristics ofYanchang inLateTriassic which belongs to the Zhiluo oilfield inOrdos evaluates the sedimentary facies,the reservoir characteristics,diagenesis,physical property,the pore structure andtheinfluencefactorsof ,it forecastthefavorableexploration target zone. Chang 8inZhiluooilfieldbelongs todeltadepositionalsystem,mainly develops delta front sub— underwater distributary channel isthemost favorable micro—facies. Chang 8reservoirofYanchang formation is divided intotwo oilsub—groups:Chang 8 1and Chang source ofthe research area isfromnortheast and tothe mix source sedimentary ofthereservoirismainly fine—middlegrain of lithicgreywacke 8belongs tolowand extra-lowpermeable structure ismainly dissolvedpore-intergranular pore andintergranular pore—dissolved ong thelithologic and poroperm characteristics,theChang 8is divided withregional geological background,sedimentary evolution characteristics of Yanchang formation,the rock type,lithology,sedimentary structure,loggingandprofile structure characteristics,it concludes thatfavorable zone of Chang 82reservior existsFuxi 2and Zi zone ofChang 81reservior existsLu 46and Zi9well. Key