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    • 7. 发明申请
    • METHOD FOR OPTIMIZATION WITH GRADIENT INFORMATION
    • 用梯度信息优化的方法
    • WO2011049654A1
    • 2011-04-28
    • PCT/US2010/043402
    • 2010-07-27
    • EXXONMOBIL UPSTREAM RESEARCH COMPANYIMHOF, MatthiasGHAYOUR, KavehSUN, Tao
    • IMHOF, MatthiasGHAYOUR, KavehSUN, Tao
    • G06G7/48
    • G01V11/00G01V1/282G01V1/30G01V2210/614G01V2210/66G01V2210/661G01V2210/665
    • A method of improving a geologic model of a subsurface region. One or more sets of parameter values are selected. Each parameter represents a geologic property. A cost and a gradient of the cost are obtained for each set. A geometric approximation of a parameter space defined by one or more formations is constructed. A response surface model is generated expressing the cost and gradient associated with each formation. When a finishing condition is not satisfied, at least one additional set is selected based at least in part on the response surface model associated with previously selected sets. Parts of the method are repeated using successively selected additional sets to update the approximation and the response surface model until the finishing condition is satisfied. Sets having a predetermined level of cost to a geologic model of the subsurface region and/or their associated predicted outcomes are outputted to update the geologic model.
    • 一种改善地下区域地质模型的方法。 选择一组或多组参数值。 每个参数代表地质属性。 为每一组获得成本和成本梯度。 构造由一个或多个地层定义的参数空间的几何近似。 生成响应曲面模型,表示与每个组合相关联的成本和梯度。 当不满足整理条件时,至少部分地基于与先前选择的组相关联的响应面模型选择至少一个附加集合。 使用连续选择的附加集来重复该方法的部分以更新近似值和响应面模型,直到满足完成条件。 输出具有对地下区域的地质模型和/或其相关联的预测结果的预定成本水平的集合以更新地质模型。