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首页> 外文会议>Annual convention of the indonesian petroleum association >POWER-LAW DISTRIBUTION OF FRACTURE ATTRIBUTES: INTEGRATED APPROACH TO FRACTURED BASEMENT RESERVOIR OF GARBA FORMATION, SOUTH SUMATRA BASIN
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POWER-LAW DISTRIBUTION OF FRACTURE ATTRIBUTES: INTEGRATED APPROACH TO FRACTURED BASEMENT RESERVOIR OF GARBA FORMATION, SOUTH SUMATRA BASIN

机译：骨折属性的幂律分布：南苏立林南苏门林盆地泥土地下室储层综合探讨

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Fractured basement reservoirs have brought hydrocarbon exploration to a new level A complex history of geological setting becomes a challenge in fracture mapping and distribution. A good fractured reservoir distribution should follow the Power-Law Distribution where two quantities change exponentially from dominant to less. The fractal dimension could infer geological context of homogeneity and heterogeneity. This research will focus on the potential reservoir of Jurassic Granite.Garba Formation in the South Sumatra Basin. Surface mapping was conducted to collect fracture samples. Outcrop data allows us to create a surface analog for advanced fracture attribute interpretation. A statistical approach is used in analysis of the data to determine the fracture zone, origin geometry, porosity, and permeability. The Garba Formation consists of granite, basaltic-andesitic dyike, quartz vein, and breccia. The fractures in the research area are related to fault systems with basement dominated by NW - SE and NE - SW trending structures. The cumulative distribution of fracture attributes follows the Power-Law Distribution and shows multi trend directions. The fractal dimesion of 3 fracture sets reveals the fracture origins where multi-stages of tectonic activities occured during the basement configuration. The standard deviation of apertures is 3.45 mm with range between 0.1 to 30 mm while the spaces is 0.12 m with range between 0.01 to 0.75 m. This can be categorized as a good reservoir. The simple experiment to measure the volume of reservoir is also plotted with log normal distribution showing storage capacity of up to 80%. The fracture characteristics of Garba Formation is homogeneous but also heterogenous at the same time and is classified as high potential reservoir through its response of origin, porosity, and permeability. This distribution however, cannot be the absolute evaluation in determining porosity of this unconventional reservoir but it can define the fracture system framework.
机译：裂缝地下室水库为新水平带来了碳氢化合物探索，复杂地质环境历史成为骨折映射和分布的挑战。良好的骨折储层分布应遵循幂律分布，其中两种数量从占主导地位逐渐变化。分形维数可以推断均匀性和异质性的地质背景。该研究将重点关注南苏立兰盆地侏罗纪花岗岩潜在水库。进行表面映射以收集骨折样品。露出数据允许我们为高级骨折属性解释创建一个表面模拟。统计方法用于分析数据以确定裂缝区，原始几何，孔隙度和渗透率。 Garba形成由花岗岩，玄武岩 - 依赖堤，石英静脉和Breccia组成。研究区域的骨折与具有由NW-SE和NE - SW趋势结构主导的地下室的故障系统有关。骨折属性的累积分布遵循幂律分布，并显示多趋势方向。 3骨折组的分形测量揭示了在地下室配置期间发生的构造活动的多阶段的裂缝起源。孔径的标准偏差为3.45毫米，范围在0.1至30mm之间，而空间为0.12米，范围为0.01至0.75米。这可以作为良好的水库分类。测量储层体积的简单实验也绘制了日志正态分布，显示储存能力高达80％。 Garba形成的骨折特性是同质的，但同时也是异源性，并且通过其原产地，孔隙率和渗透性的响应被归类为高潜在的储层。然而，这种分布不能是确定这种非常规储层的孔隙度的绝对评估，但它可以定义骨折系统框架。

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