公开(公告)号：US11112516B2

公开(公告)日：2021-09-07

申请号：US15966607

申请日：2018-04-30

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Tuanfeng Zhang ,  Richard E. Lewis ,  Helena Gamero Diaz

IPC: G01V1/30 ,  G01V1/40 ,  G06F17/15 ,  G06F17/16

Abstract: Methods may include normalizing two or more wellbore logs obtained from the output of two or more wellbore tool surveys of a wellbore in a formation of interest; inputting two or more wellbore logs into a correlation matrix; assigning each of the two or more wellbore logs a positive or negative value based on the impact on a selected wellbore quality; performing a principal component analysis of the two or more wellbore logs to obtain one or more loading vectors; computing weighting factors for each of the two or more wellbore logs from the one or more loading vectors; and generating a quality index by linearly combining the two or more wellbore logs using the computed weighting factors.

公开(公告)号：US20160130930A1

公开(公告)日：2016-05-12

申请号：US14896961

申请日：2014-06-10

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Andriy Gelman ,  Tuanfeng Zhang ,  Neil F. Hurley

IPC: E21B47/00 ,  G06T11/00 ,  G06T7/00 ,  G06T7/40

CPC classification number: E21B47/0002 ,  G01V11/00 ,  G06T7/0004 ,  G06T7/40 ,  G06T11/003 ,  G06T2207/30181

Abstract: The present disclosure introduces methods and apparatus for acquiring a borehole image corresponding to a sidewall surface of a borehole that penetrates a subterranean formation, wherein the subterranean formation comprises structural elements and a varying geophysical characteristic. The borehole image comprises structure corresponding to the structural elements, texture corresponding to the varying geophysical characteristic, and coverage gaps (605) in which the structure and texture are missing. Trends corresponding to the structure are extracted from the borehole image. Missing structure within the gaps (605) is reconstructed based on the extracted trends. Missing texture within the gaps is simulated based on the borehole image and the reconstructed structure. A fullbore image is constructed based on the borehole image, the reconstructed structure within the gaps, and the simulated texture within the gaps.

Abstract translation: 本公开引入了用于获取对应于穿透地下地层的钻孔的侧壁表面的钻孔图像的方法和装置，其中所述地下岩层包括结构元件和变化的地球物理特性。 井眼图像包括对应于结构元件的结构，对应于变化的地球物理特性的纹理以及其中缺少结构和纹理的覆盖间隙（605）。 从钻孔图像中提取与结构相对应的趋势。 基于提取的趋势重建间隙（605）中的缺失结构。 基于井眼图像和重建结构，模拟了间隙内的纹理缺失。 基于井眼图像，间隙内的重建结构以及间隙内的模拟纹理构建了全景图像。

公开(公告)号：US20130338978A1

公开(公告)日：2013-12-19

申请号：US13967498

申请日：2013-08-15

Applicant: Schlumberger Technology Corporation

Inventor： Tuanfeng Zhang ,  Ting Li ,  Harish Krishnamurthy

IPC: G06F17/50

CPC classification number: G06F17/5009 ,  G01V99/005 ,  G01V2210/665 ,  G01V2210/6652

Abstract: A method for generating one or more geological models for oil field exploration. The method includes receiving one or more well facies logs, a vertical facies proportion curve, a lateral proportion map, a variogram model and a global target histogram. The method then includes generating a facies probability cube using a modified Sequential Gaussian Simulation (SGSIM) algorithm, the well facies logs, the vertical facies proportion curve, the lateral proportion map and the variogram model. After generating the facies probability cube, the method includes matching the facies probability cube to the global histogram and generating the geological models based on the matched facies probability cube.

Abstract translation: 一种生成一个或多个油田勘探地质模型的方法。 该方法包括接收一个或多个井相测井，垂直相位比例曲线，横向比例图，变差函数模型和全局目标直方图。 该方法然后包括使用修正的顺序高斯模拟（SGSIM）算法，井相记录，垂直相比例曲线，横向比例图和变差函数模型来生成相位概率多维数据集。 在生成相位概率多维数据集之后，该方法包括将相位概率多维数据集与全局直方图进行匹配，并根据匹配相位概率立方体生成地质模型。