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In-situ stress state from inversion of fracturing data from oil wells

机译:来自油井压裂数据反演的地应力状态

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This paper presents the general theory for determining the in-situ stress state from multiple fracturing data. The complete exact non-linear solution is presented. This cannot be solved explicitly, therefore a semi-linearized version is also presented, as well as a linear version. It is shown that the fracturing equation takes the form of an hyperbolic equation, an elliptic equation or a parabolic equation. A solution can be obtained with a minimum of two data sets. However, using an inversion technique, a solution can be obtained with any number of data sets as the solution is over determined. Comparison is made between the solutions. Field data is used to compare the results.
机译:本文介绍了从多个压裂数据确定地应力状态的一般理论。给出了完整的精确非线性解决方案。这不能明确解决,因此,还提出了半线性版本以及线性版本。结果表明,压裂方程采用双曲方程,椭圆方程或抛物线方程的形式。至少可以使用两个数据集来获得一个解决方案。但是,使用反演技术时,由于解决方案确定过多,因此可以使用任意数量的数据集获得解决方案。在解决方案之间进行比较。现场数据用于比较结果。

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