尚店油田生物礁油藏沉积特征  

Geology characteristics of the biohermal reservoir in Shangdian Oilfield

作　　者：张兴平[1] 

机构地区：[1]胜利油田有限公司地质科学研究院,山东东营257015

出　　处：《大庆石油地质与开发》2003年第6期3-4,共2页Petroleum Geology & Oilfield Development in Daqing

摘　　要：采用“以今论古”的方法,从区域沉积环境、沉积特征等方面综合分析,确定尚店油田沙四上亚段属滨湖环境中的生物礁相,整体上呈朵状分布,可划分为呈环带状分布的礁前、礁核和礁后三种沉积微相,其中礁核微相有利于油、气的聚集,油藏物性好、产能高、储量品位高。After analyzing the regional sedimentary environment and depositional features etc. , this paper recognized Upper Es4 as bio-hermal facies in Shengli Oilfield. The depositional patterns have been established according to the cause of biohermal forming. Three depositional micro-facies have been divided, i. e. reef front, reef core and backreef. On this basis, the reservoir quality and characteristics have been further researched. The result of research shows that horizontally the bioherm is in the shape of flowers and each facies distributes zonally. Vertically four types of SP log and permeability curve have been classified according to the local position and reef development, i. e. high permeability on the top, high permeability in the middle, high permeability on the bottom of the formation and interbedding. The biohermal reservoir is of good quality, high productivity and high reserve class although there is severe heterogeneity in the biohermal reservoir.

关 键 词：生物礁 沉积相 储层物性 储量丰度 油藏特征 尚店油田 

分 类 号：TE112[石油与天然气工程—油气勘探]