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A technique for inter well description by applying geostatistics and fractal geometry methods to well logs and core data.

机译：一种将地统计学和分形几何方法应用于测井和核心数据的井间描述技术。

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The objective of this study was to develop a quantitative and computerized reservoir description technique, which can be used for simulation and enhanced oil recovery studies. The technique allows identification of flow units and subdivision of hydrocarbon reservoirs into these units. Also, this technique estimates, for the identified flow units, values of their petrophysical properties both at wells and interwell region.; The development of this reservoir description technique was attained by applying geostatistics, fractal geometry and well log interpretation methods to the study of well logs and core data. These methods were implemented in four computer programs, which were designed to generate data used in this technique. A theoretical reservoir data set was used to validate these computer programs and to illustrate the general procedure of the developed technique.; This study presented a different approach to the application of petrophysical well logs in the generation of pseudo well log data, which are used to construct depth plots of gamma ray, resistivity and porosity responses between wells. These depths plots are important, because their interpretations can give a broad view of the distribution of these log responses at the interwell region, allowing the petrophysical study of reservoirs.; The developed technique generates, from the petrophysical evaluation of the pseudo well logs, data that are used to construct depth plots of rock properties, stochastic distributions of porosity and permeability, and stochastic reservoir cross-sections of sand and shale sequences across the reservoir. This information is used for detailed studies of vertical and lateral extent and quality of potential reservoir rocks, which are important factors to the identification of flow units.; The technique generates several spatial distributions of geological and petrophysical properties, for each flow unit. These rock property distributions are used to construct areal maps, which are important to the study of hydrocarbon reservoirs, because they allow interpretation of areal extent and quality of the flow units. Also, these spatial distributions are useful to reservoir simulation and enhanced oil recovery studies.; The developed technique represents a contribution to reservoir characterization, because it allows the identification of flow units and subdivision of hydrocarbon reservoirs into these units. Also, this technique estimates, for identified flow units, the values of their petrophysical properties both at wells and interwell region.
机译：这项研究的目的是开发一种定量和计算机化的油藏描述技术，该技术可用于模拟和提高采油率的研究。该技术允许识别流量单位并将碳氢化合物储层细分为这些单位。同样，对于确定的流量单位，该技术还估算了井和井间区域的岩石物性值。该油藏描述技术的发展是通过将地统计学，分形几何学和测井解释方法应用于测井和岩心数据研究而实现的。这些方法在四个计算机程序中实现，它们被设计用来生成此技术中使用的数据。理论储层数据集用于验证这些计算机程序并说明所开发技术的一般步骤。这项研究提出了一种不同的方法，将岩石物理测井曲线应用于伪测井曲线数据的生成，这些数据用于构建井间伽玛射线，电阻率和孔隙度响应的深度图。这些深度图很重要，因为它们的解释可以提供井间区域这些测井响应分布的广泛视图，从而可以对储层进行岩石物理研究。这项开发的技术从对假测井的岩石物理评价中产生了数据，这些数据可用于构造岩石性质的深度图，孔隙度和渗透率的随机分布，以及整个储层中砂岩和页岩序列的随机储层横截面。该信息用于详细研究潜在储层岩石的垂直和横向范围以及质量，这是识别流动单元的重要因素。该技术为每个流动单元生成了一些地质和岩石物理属性的空间分布。这些岩石属性分布用于构造面积图，这对于研究油气藏很重要，因为它们可以解释流量单位的面积范围和质量。同样，这些空间分布对于油藏模拟和增强油采收率研究也很有用。所开发的技术代表了储层表征的一项贡献，因为它可以识别流量单位并将碳氢化合物储层细分为这些单元。同样，对于确定的流量单位，该技术还估算了井和井间区域的岩石物理特性值。

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