宝中区块低渗透储层油气特征研究  

Characteristics of low permeability reservoir in Baozhong block

作　　者：王海明[1] 刘洪友[1] 黄爽英[1] 

机构地区：[1]河南石油勘探局勘探开发研究院

出　　处：《特种油气藏》2000年第4期7-13,共7页Special Oil & Gas Reservoirs

摘　　要：方法应用油气藏流体特征的分析对宝中区块低渗储层的原油及凝析气的高压物性等进行分析研究。目的认识该区块油气藏流体特征，为加快油田开发步伐创造条件。结果宝中区块地层原油中间烃（Ｃ２～Ｃ６）含量较高，油质轻，收缩性强，有饱和油藏和未饱和油藏；气藏属高合凝析油的近饱和凝析气藏类型。结论宝中区块油气性质和油气藏类型比较特殊，存在常规黑油中轻质油、挥发油和凝析气，焉参１断块Ⅲ油组为带油环的凝析气藏，Ⅳ油组为凝析气藏；宝３断块Ⅱ、Ⅳ油组为常规黑油中轻质油藏。本次研究为进一步落实宝中区块油气储量，合理选择油气藏的开采方式提供了依据。Method Using analysis of reservoir fluid characteristics, petrophysical properties, such as high pressure, of crude and condensate gas from Baozhong low permeability reservoir have been studied. Purpose To create conditions for speeding up development after understood fluid properties. Result In Baozhong block, formation crude contains saturated and unsaturated reservoirs and relatively higher medium hydrocarbon (C2-C6), and also features light and strong shrinkage. Conclusion Oil and gas properties/types of Baozhong block are relatively particular ones since it contains light oil, volatile oil and condensate gas belonging to conventional black oil. In detail, Ⅲ formation of Yancan 1 fault block is condensate gas reservoir with oil circles, Ⅳformation is condensate gas reservoir, Ⅱ and Ⅳ formations of Bao 3 fault block are light oil reservoirs belonging to conventional black oil. Basis for further substantiating hydrocarbon reserves and selecting rational development patterns of oil/gas reservoirs can be found in this study.

关 键 词：低渗透储集层 油气特征 油气藏类型 高压物性 河南油区 宝中区块 

分 类 号：P618.130.2[天文地球—矿床学] TE12[天文地球—地质学]