涠西南凹陷斜阳斜坡带流三段储层特征与有利储层分布

发布时间：2018-02-13 18:04

本文关键词： 储层特征成岩作用早期烃类充注有利储层分布斜阳斜坡涠西南凹陷　出处：《东北石油大学学报》2017年04期 　论文类型：期刊论文

【摘要】：利用岩(壁)心、测井解释、铸体薄片、扫描电镜、阴极发光等资料,研究涠西南凹陷斜阳斜坡带流三段储层特征、物性影响因素及有利储层分布。结果表明:流三段储层岩石类型以岩屑砂岩为主,孔隙类型以原生粒间孔和长石溶孔为主,次为铸模孔,物性为特低孔低渗、低孔低渗及低孔中渗特征,非均质性强。强压实作用、局部强钙质胶结作用和高泥质杂基体积分数是储层物性变差的主要原因;粗粒级、强溶蚀作用及早期烃类充注是深层"甜点"储层发育的关键因素。储层粒度粗、厚度大且处于弱压实区的B-X1、B-X2、B-X3、B-X4和A区,以及周缘早期烃类充注区发育有利储层。该结果为斜阳斜坡带流三段整体评价与目标优选提供地质依据。
[Abstract]:Based on the data of rock core, log interpretation, casting sheet, scanning electron microscope and cathodoluminescence, the reservoir characteristics of the third member flow in the inclined Yang slope zone in Wei Southwest depression are studied. The results show that lithic sandstone is the main reservoir rock type, primary intergranular pore and feldspar solution pore are the main pore types, mold hole is secondary, and physical property is very low porosity and low permeability. The characteristics of low porosity and low permeability, strong heterogeneity, strong compaction, local strong calcareous cementation and high muddy matrix integral number are the main reasons for the poor physical properties of reservoir. Strong dissolution and early hydrocarbon filling are the key factors for the development of deep "dessert" reservoir. And the favorable reservoir is developed in the early hydrocarbon filling area of the margin. The results provide geological basis for the overall evaluation and target selection of the third member of flow in the diagonal slope zone.
【作者单位】：中海石油(中国)有限公司湛江分公司;
【基金】：国家科技重大专项(2016ZX05024-006)
【分类号】：P618.13

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