泌阳凹陷安棚深层系储层特征及油气分布规律  

Deep Reservoir Characteristics and Distribution of Oil & Gas in Anpeng Area of Miyang Sag

作　　者：邱荣华[1] 陈祥[1] 伏卫东[1] 余培湘[1] 孙凤华[1] 陈代林[1] 

机构地区：[1]河南石油勘探局,河南南阳473132

出　　处：《江汉石油学院学报》2001年第3期13-15,20,共4页Journal of Jianghan Petroleum Institute

摘　　要：安棚地区位于泌阳凹陷东南部 ,来自南部陡坡的扇三角洲砂体由南向北展布 ,与继承性发育的鼻状构造背景配置形成砂岩上倾尖灭圈闭。深层系储层经历了强烈的成岩作用 ,成岩演化阶段进入晚成岩 B期 ,储层物性差 ,呈低孔低渗特征 ,平均孔隙度为 4 .5 3% ,平均渗透率为 1 .0 9× 1 0 - 3 μm2 。但微裂缝较发育 ,改善了储层储集性能。形成正常原油、挥发性原油。Anpeng area is located in the southeast part of Miyang sag The fan delta sandbody originating from the southern steep slope distributes from south to north and forms a sandstone updip pinchout trap in combination with an inherited growing of nose like structure The deep reservoirs experience strong diagenesis and diagenesis evolution occurs in the stage B of late diagenesis The reservoirs have poor physical properties, which is of low permeability and low porosity, with a mean porosity of 4 53% and a mean permeability of 1 09×10 3 μm 2 However, the more grown microfractures greatly improve the reservoir properties and form various types of low porosity and low permeability reservoirs with fluid phases such as normal crude oil, volatile oil, condensate and nature gas

关 键 词：储集层特征 深层 油气分布规律 泌阳凹陷 

分 类 号：P618.13[天文地球—矿床学]