泥页岩油藏测井评价新方法——以松辽盆地古龙凹陷青山口组为例  

New Logging Evaluation Method for Shale Reservoirs:Taking Qingshankou Formation in Gulong Sag of Songliao Basin for Instance

作　　者：李霞[1] 周灿灿[1] 赵杰[2] 程相志[1] 胡松[1] 

机构地区：[1]中国石油勘探开发研究院 [2]大庆油田有限责任公司勘探事业部

出　　处：《中国石油勘探》2014年第3期57-65,共9页China Petroleum Exploration

基　　金：国家科技重大专项"复杂储层油气测井解释理论方法与处理技术"(2011ZX05020-008)

摘　　要：泥页岩油藏是一类重要的非常规油气资源,测井评价技术在其勘探和开发中发挥重要作用。目前针对非构造裂缝型泥页岩油藏,国内外现有的常规测井评价技术均不能满足该类油藏勘探开发的需求。以松辽盆地白垩系青山口组泥页岩油藏为例,针对泥页岩油藏勘探与工程改造需求,以"非常规思想"为指导,从烃源岩品质、矿物组分、地层压力、岩石脆性、裂缝识别等角度开展测井定量评价方法研究。在此基础上,优选泥页岩有机碳含量、地层压力系数和岩石脆性指数这3个表征参数,建立了泥页岩油藏有效储层测井识别与定量评价方法,最终形成泥页岩油藏测井评价配套技术。该技术成果填补了国内非常规泥页岩油藏测井评价技术的空白,为我国泥页岩油藏勘探开发提供了重要技术支持和保障。The shale reservoir is an important unconventional oil and gas reserve, while well logging evaluation techniques plays a significant role in oil and gas exploration and development. As for the non-structural fracture shale reservoir, the current existing conventional well logging evaluation technology both at home and abroad cannot meet the demand of exploration and development for such a reservoir. This article takes shale reservoir of the Qingshankou Formation in Gulong Sag of Songliao Basin for instance, aiming to meet the need for exploration and engineering transformation. Guided by the unconventional ideas, the logging quantitative evaluation method is studied on the basis of the quality of source rock, mineral components, formation pressure, rock brittleness and fractural identification. Then, three characterization parameters - organic carbon content of shale, formation pressure factor and rock brittleness - are selected and optimized to establish the effective logging identification and quantitative evaluation method for shale reservoirs, finally creating the systematic logging evaluation technology for shale reservoirs. This technology fills a domestic blank in logging evaluation of unconventional shale reservoirs and provides an important technological support for China＇s exploration and development of shale reservoirs.

关 键 词：泥页岩油藏 测井评价 矿物组分 岩石脆性 有效储层 

分 类 号：P631.8[天文地球—地质矿产勘探]