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众所周知,油页岩资源丰富,粗略估计有三万亿桶。如果成功开采,这种极具潜力的可开采资源可成为长期的可供油源。确定油母含量是油页岩开采评价和经济地描绘可开采层段的主要任务之一。由于GreenRiver地层含有淡水,所以根据电阻率测井曲线确定油母含量变得复杂了。介电频散测井提供了以地层水和其它地层成分(矿产和油母)的介电常数的差异为基础的另外一种法。介电测井可以提供含水孔隙度和地层水矿化度,综合其它测井方法,能够评价地层油母含量。GreenRiver浅层沉积含有淡水,可能与含淡水的近地表相连,这些淡水可作为饮用水。要求经营者保护淡水水层以免受较深地层采油气或盐水的污染。为了保护淡水资源,有必要识别井眼穿过的淡水地层,然后监测矿化度和油气含量。介电测井可完成这些任务,它是快速可靠的环境监测方法。用新一代介电频散测井仪测量GreenRiver地层,该仪器可提供多种频率下的地层介电常数和电导率。准确解释介电测量结果需要输入岩石骨架介电常数。本文给出了干燥岩石和粉末的介电常数实验室测量方法,该方法可用于对GreenRiver地层岩样的分析(根据原文这样翻译,但好像不符合逻辑)。对同一组样品,我们也得到了其矿物和化学特性以及模拟核测井响应。对岩石骨架介电常数和测井参数之间的相关性进行了分析对比。然后,利用介电测井和其它测井对地层水含量、地层矿化度和油母含量给出解释,并且与一口邻井的岩心测量结果做比较。
As we all know, rich oil shale, a rough estimate of three trillion barrels. If successfully mined, this potentially recoverable resource can become a long-term source of availability. Determining the kerogen content is one of the major tasks in evaluating and economically characterizing the recoverable section of oil shale production. Because the GreenRiver formation contains fresh water, determining the kerogen content from the resistivity log becomes more complicated. Dielectric dispersion logging provides an alternative method based on the difference in permittivity of formation water and other formations (mineral and kerogen). Dielectric logging can provide water porosity and formation water salinity. Combining with other well logging methods, it is possible to evaluate the formation oil and gas content. The shallow sediments of the GreenRiver contain fresh water and may be associated with near-surface waters containing fresh water, which can be used as drinking water. Requires operators to protect the freshwater aquifers to avoid deeper oil and gas or salt water pollution. In order to conserve freshwater resources, it is necessary to identify freshwater formations through which the borehole passes, and then to monitor salinity and oil and gas contents. Dielectric logging can accomplish these tasks, it is a fast and reliable method of environmental monitoring. The GreenRiver formation is measured with a new generation of dielectric dispersion logging tools that provide formation permittivity and conductivity for many frequencies. Accurate interpretation of dielectric measurements requires the input rock matrix dielectric constant. This paper presents a laboratory measurement of the permittivity of dry rock and powder, which can be used for the analysis of GreenRiver formation samples (translated as such, but it seems illogical). For the same group of samples, we also obtained their mineral and chemical properties and simulated nuclear logging response. The correlation between the rock matrix dielectric constant and logging parameters was analyzed and compared. Then, using the logging and other logs, the formation water content, formation salinity and oil and gas content are explained and compared with the core measurements of a neighboring well.