塔里木盆地英买力—牙哈地区碳酸盐岩潜山油气藏特征研究  

Features of Carbonate Buried Hill Oil and Gas Reservoir in Yingmaili-Yaha Region,Tarim Basin

作　　者：张年春[1,2] 崔海峰[2] 滕团余[2] 孟祥霞[2] 

机构地区：[1]成都理工大学,四川成都610059 [2]中国石油勘探开发研究院西北分院,甘肃兰州730020

出　　处：《天然气地球科学》2010年第5期762-771,共10页Natural Gas Geoscience

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目(编号:07010624)资助

摘　　要：在分析英买力—牙哈寒武系白云岩潜山油气藏和储层主控因素基础上,利用相对波阻抗变化率和建场测深极化率资料研究碳酸盐岩储层的横向非均质性,研究认为该区油藏类型局部为"底水块状",整体为"准层状",其形成主要是由于潜山储层的横向非均质性、岩性的横向变化、潜山面风化剥蚀程度和油气的不断调整入注(即活油气源的存在)。在研究的基础上建立了英买力—牙哈油藏模式图,这种类型模式可以解释同一潜山油气藏具有不同油水界面,也说明油气分布可能不受局部构造圈闭的控制。Based on understanding of Cambrian dolomite buried hill oil-gas reservoir and main control factors of reservoir rock development in the Yinmaili-Yaha region,we used variation of relative wave impedance and polarizabitity of electric-magnetic depth sounding to illustrate the lateral heterogeneity of carbonate reservoir.The result showed that the oil pool was a part of bottom water block and whole quasi-layered reservoir.The formation of this pool is related to lateral buried-hill reservoir anisotropy,lateral lithological variation,weathering and erosion degree of buried hill surface,and continuous oil-gas adjusting and filling（active oil-gas source）.Then,we built the model of Yingmaili-Yaha oil pool formation.Not only does this model explain why oil-water interface is different in the same buried reservoir,but also hydrocarbon distribution is not controlled by local structural traps.

关 键 词：潜山油气藏 底水块状 准层状 活油气源 相对阻抗变化率 极化率 

分 类 号：P618.130.2[天文地球—矿床学]