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    • 1. 发明授权
    • Volume of investigation based density image processing
    • 调查量密度图像处理
    • US08527204B2
    • 2013-09-03
    • US12678040
    • 2008-10-10
    • Hezhu YinPingjun GuoAlberto X. Mendoza
    • Hezhu YinPingjun GuoAlberto X. Mendoza
    • G01V9/00
    • G01V5/125
    • Systems and methods which provide accurate formation information regardless of formation and borehole geometry, including those associated with high angle and horizontal wells, are shown. In providing processing of logging or image data, such as may be provided by a density tool or other tool, according to embodiments, formation attributes or features (e.g., density and dip angle) are estimated using raw data provided by a the tool. The foregoing estimations may thereafter be iteratively refined using effective volume of interest (EVOI) information. According to embodiments, depth boundaries of formation information provided by the tool are shifted as a function of azimuth for correct spatial positioning of formation features using EVOI information. Processing of formation attribute or feature data provided by embodiments may be used with respect to various tool configurations, including configurations with and without borehole standoff.
    • 示出了提供精确的地层信息的系统和方法,而不管地层和钻孔几何形状,包括与高角度和水平井相关的几何形状。 在提供记录或图像数据的处理(例如可以由密度工具或其他工具提供)时,根据实施例,使用由工具提供的原始数据来估计形成属性或特征(例如,密度和倾角)。 之后可以使用有效感兴趣量(EVOI)信息迭代地改进上述估计。 根据实施例,由工具提供的地层信息的深度边界作为方位角的函数被移动,以使用EVOI信息对地层特征进行正确的空间定位。 实施例提供的地层属性或特征数据的处理可以用于各种工具配置,包括具有和不具有井眼间隙的构造。
    • 4. 发明授权
    • Updating velocity models using migration velocity scans
    • 使用迁移速度扫描更新速度模型
    • US08203907B2
    • 2012-06-19
    • US12300093
    • 2007-03-16
    • Jerome R. KrebsLorie K. Bear
    • Jerome R. KrebsLorie K. Bear
    • G01V1/00
    • G01V1/303
    • Method for updating a velocity model (926) for migrating seismic data using migration velocity scans with the objective of building a model that reproduces the same travel times that produced selected optimal images from a scan. For each optimal pick location (914) in the corresponding test velocity model (916), a corresponding location is determined (922) in the velocity model to be updated, using a criterion that the travel time to the surface for a zero offset ray (918) should be the same. Imaging travel times are then computed from the determined location to various surface locations in the update model (924), and those times are compared to travel times in the test velocity model from the optimal pick location to the same array of surface locations. The updating process consists of adjusting the model to minimize the travel time differences (934).
    • 用于使用迁移速度扫描来更新用于迁移地震数据的速度模型(926)的方法,目的是构建一个模型,该模型再现从扫描产生所选择的最佳图像的相同行进时间。 对于相应的测试速度模型(916)中的每个最佳选择位置(914),在要更新的速度模型中确定对应的位置(922),使用对于零偏移射线 918)应该是一样的。 然后从确定的位置到更新模型(924)中的各个表面位置计算成像行进时间,并且将那些时间与测试速度模型中的行进时间从最佳拾取位置相对于相同的表面位置阵列进行比较。 更新过程包括调整模型以最小化旅行时间差异(934)。
    • 5. 发明申请
    • Method For Predicting Fluid Flow
    • 流体流动预测方法
    • US20110290478A1
    • 2011-12-01
    • US13201395
    • 2010-01-21
    • Tao SunDachang Li
    • Tao SunDachang Li
    • E21B47/00G06F17/10E21B43/00G06G7/57
    • G01V99/00G01V99/005G06F17/10G06F17/5009
    • A method of enhancing a geologic model of a subsurface region is provided. A bed topography of the subsurface region is obtained. The bed topography is defined by a plurality of cells with an elevation associated with each cell center. The bed topography is represented as a cell-centered piecewise constant representation based on the elevations associated with the cells. The bed topography is reconstructed to produce a spatially continuous surface. Flux and gravitation al force-related source terms are calculated based on the reconstructed bed topography. Fluxes are calculated between at least two of the cells. Fluid flow, deposition of sediments onto the bed, and/or erosion of sediments from the bed are predicted using the fluxes and gravitational force-related source terms. The predictions are inputted into the geologic model to predict characteristics of the subsurface region, and the predicted characteristics are outputted.
    • 提供了一种增强地下区域地质模型的方法。 获得地下区域的床形地貌。 床形状由具有与每个细胞中心相关联的高度的多个细胞定义。 基于与细胞相关联的高度,床形状表示为以细胞为中心的分段常数表示。 床形状被重建以产生空间连续的表面。 基于重构床形貌计算通量和重力与力相关源项。 在至少两个细胞之间计算通量。 流体流动,沉积物沉积到床上,和/或从床上沉积物的侵蚀是使用流量和重力相关的源项预测的。 将预测输入到地质模型中,以预测地下区域的特征,并输出预测特征。