陆相断陷盆地页岩油资源潜力评价 ——以东营凹陷沙三段下亚段为例
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朱日房(1974—),男,广东河源人,高级工程师,从事油气地球化学研究。联系电话:(0546)8715354,E-mail:zhurifang2005@163.com。

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国家“973”计划“ 中国东部古近系陆相页岩油富集机理与分布规律”子课题“ 陆相页岩油资源潜力与分布规律”(2014CB239105),国家科技重大专项“济阳坳陷页岩油勘探开发目标评价”(2017ZX05049-004),国家自然科学基金项目“湖相页岩油可动性基本地质条件研究”(41372129)。


Evaluation of shale oil resource potential in continental rift basin:A case study of Lower Es3 Member in Dongying Sag
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    摘要:

    页岩油资源潜力分析是页岩油勘探实践最重要的基础工作之一,可动资源量是最直接的资源潜力衡量指标。在借鉴页岩油资源评价和页岩油可动性等已有研究成果的基础上,分别应用氯仿沥青“A”参数法和热解参数法计算东营凹陷沙三段下亚段页岩油资源量和可动资源量。结果表明,2种方法的计算结果基本一致,页岩油资源量分别为11.39×108和11.57×108 t。平面上,页岩油资源主要分布在各次级洼陷带,资源丰度为100×104~250×104 t/km2。纵向上,页岩油资源主要分布在埋深3 000~3 500 m,资源量为7.01×108 t,其次分布在3 500~4 000 m,资源量为4.37×108 t;从页岩油可动资源量来看,两者接近,分别为0.75×108和0.73×108 t,但深部页岩油具有较高可动率。利津洼陷带具有较高的页岩油资源丰度和可动率,页岩油资源潜力大,为有利的页岩油勘探区。

    Abstract:

    Shale oil resource potential analysis is one of the most important basic works in shale oil exploration practice. Recoverable oil resource is the most direct index of resource potential evaluation. Based on the existing research results of shale oil resources evaluation and the recovery of shale oil,the total resources and recoverable resources of the shale oil in Lower Es3 Member in Dongying Sag were calculated by the chloroform asphalt“A”method and the pyrolysis parameter method respectively. The calculation results show that the calculation results obtained by the two methods are basically consistent,which are 1 139 million tons and 1 157 million tons respectively. The shale oil resources are mainly distributed horizontally in the central zone of the subsags,which the abundance of the resources is between1 million and 2.5 million t/km2.Vertically,the shale oil resources are mainly occurred at the depth from 3 000 m to 3 500 m with 701 million tons shale oil resources,followed occurred at the depth from 3 500 to 4 000 m,which is 437 million tons shale oil resources. However,the amount of recoverable resources of shale oil are roughly equivalent at those two deep segments,which is 75 million tons and 73 million tons respectively. Shale oil located deeply has a higher recoverable rate. Lijin Subsag has high shale oil resource abundance and recovery mobility,high shale oil resource potential,and is a favorable area for shale oil exploration.

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朱日房,张林晔,李政,王茹,张守春,张蕾.陆相断陷盆地页岩油资源潜力评价 ——以东营凹陷沙三段下亚段为例[J].油气地质与采收率,2019,26(1):129~136

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  • 在线发布日期: 2019-04-02