二连盆地蒙古林砾岩稠油油藏储层特征及影响开发效果的地质因素

方法：利用油田钻井，取心，分析化验等资料，对蒙古林砾岩稠油油藏储层宏观，微观特征及影响开发效果的主要地质因素进行了研究，目的：改善复杂砾岩稠油油藏的开发效果，提高其采收率，结果：蒙古林砾岩油藏储层岩石类特别多，支撑类型复杂，储层厚度变化大，原始含水饱和度高，隔夹层分布不稳定，储集空间以次生粒（砾）间溶孔为主，喉道半径小，孔喉分选差，最小非饱和孔隙体积较高；影响开发效果的地质因素是原油粘度，油水粘度

Reservoir characteristics and the geological factors affecting development result in conglomerate heavy oil reservoir of Menggulin,Eren basin

Method Using drilling, coring, and analytical examination data this paper studiesmacro and micro characteristics of conglomerate heavy oil reservoir in Menggulin oil field,and the main geological factors affecting development result. Purpose To improve the development result and recovery factor of complex conglomelate heavy oil reservoir. ResultMenggulin conglomerate reservoir has many kinds of rock types,its supporting structure iscomplex, the reservoir thickness changes a lot, initial water saturation is high, the distribution of interbeds is uneven; the major reservoir space is secondary intergranular pore, thethroat radius is short, the throat sorting is poor, the minimum nonsaturation pore volume ishigh; the geological factors which affecting development effectiveness are crude oil viscosity,the viscosity ratio of oil-to-water, the height of oil leg, the proportion of void pores, reservoir supporting type and interbeds. Conclusion The lithology of Menggulin conglomerateheavy oil reservoir is complex, reservoir physical property is poor, it belongs to mediumpore, medium-low permeability and heterogeneity reservoir. Reservoirs supported by coarsecomplex basis produce more, mixed-multistage supported reservoirs produce second.