苏北盆地阜二段陆相页岩油气勘探潜力分析

Analysis of Oil and Gas Exploration Potential in F2 Member Continental Shale of Subei Basin

刘世丽 段宏亮 章亚 王红伟 高俊

LIU Sili DUAN Hongliang ZHANG Ya WANG Hongwei GAO Jun

中国石油化工股份有限公司江苏油田分公司地质科学研究院, 江苏扬州 225012

Jiangsu Oilfield Branch Company of SINOPEC, Yangzhou Jiangsu 225012, China

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-Ⅱ1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 E1f2, E1f4 well developed, of which E1f2 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.

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)

https://doi.org/10.3969/j.issn.1008-2336.2014.03.027