摘要
苏北盆地古近系为陆相泥页岩沉积,纵向上主要发育阜二段、阜四段两套富有机质泥页岩,其中阜二段泥页岩厚度大,有机质丰度高、类型以Ⅰ-Ⅱ_1型为主,主要处于成熟演化阶段;各类微孔隙、微裂缝发育,形成的网状储集体系为油气的赋存与流动提供了空间,具备形成页岩油气的物质基础和储集条件;无机矿物中脆性矿物含量较高,黏土矿物含量较低,利于页岩油的开采;多口井见到油气显示,部分井试获工业油流,展示苏北盆地页岩油具有较大的勘探潜力。
The Paleogene in Subei Basin are continental shale depositions, with two sets of organic rich shale E 1 f2, E 1 f4 well developed, of which Elf2 shale is great in thickness, high in organic matter abundance, and the organic matters are dominated by type Ⅰ- Ⅱ1, mainly at mature stage of evolution. Many kinds of micro pores and micro cracks are well developed, forming network storage system for oil and gas formation in the spaces, provided with the material foundation for formation of shale oil and gas and reservoir conditions. The content of brittle mineral inorganic mineral is high, and the clay mineral contents is low, which is favorable for shale oil extraction. Oil and gas shows have been seen in many wells, and commercial oil flows have been obtained in production test in part of wells, indicating that the oil shale in the Subei Basin has great exploration potential.
出处
《海洋石油》
CAS
2014年第3期27-33,共7页
Offshore Oil
基金
江苏油田重大专项"江苏探区非常规油气基础地质及富集规律研究"(JS12039)
关键词
苏北盆地
泥页岩
有机质丰度
脆性矿物
储集条件
含油气性
The Subei Basin
mud shale
organic matter abundance
brittle mineral
reservoir conditions
oil and gas bearing charac-teristics
