南翼山新近系上统湖相碳酸盐岩储层微观孔隙结构及渗流特征  

Micro-pore Structure and Percolation Characteristics of Upper Neogene Lacustrine Carbonate Reservoir in Nanyishan

作　　者：周海彬[1,2] 戴胜群[3] 

机构地区：[1]中国地质大学(北京)能源学院,北京100083 [2]中原石油勘探局钻采处,河南濮阳457001 [3]长江大学地球科学学院,湖北荆州434023

出　　处：《石油天然气学报》2009年第3期42-45,共4页Journal of Oil and Gas Technology

基　　金：国家自然科学基金项目(40602013)

摘　　要：南翼山油田含油层系油砂山油组储层岩性为湖泊碳酸盐岩,岩石类型包括颗粒灰岩、颗粒白云岩、藻灰岩、泥晶灰岩、泥晶白云岩以及部分细粒碎屑岩,其中主要储层岩性为颗粒碳酸盐岩。由于湖泊水体能量弱,沉积的颗粒碳酸盐岩粒度细,储集层孔喉细小。研究区裂缝欠发育,储层的储渗性能较差。油田投产以来,油井产能低,水井注水困难,采油速度低,开发效益差。因此,强化储层孔隙结构微观研究和渗流特征研究,是提高油藏开发水平和最终采收率的关键。The reservoir lithology of Youshashan Formation of oil-bearing series in Nanyishan Oilfield was lake-facies carbonate-rock. The rock types was composed of grain limestone, grain dolomite, algal limestone, micritic limestone, micritic limestone and a part of fine grained detrital rock, of which grain carbonate was main reservoir lithology. Due to the weak lake water energy, the size of deposited grain carbonate and pore throat of reservoir were fine, fissures were not well-developed and storage-permeation performance of reservoir was poor in this area. Oil well productivity and oil recovery rate were low, water well injection was difficult and development efficiency was poor. Thus, the key of raising reservoir development and ultimate recovery percent is to intensify microscopic study on reservoir pore structure and percolation characteristics.

关 键 词：南翼山油田 新近系 湖相碳酸盐岩 储层特征 微观孔隙结构 渗流特征 

分 类 号：P618.13[天文地球—矿床学]