公开(公告)号：US11774622B2

公开(公告)日：2023-10-03

申请号：US16761471

申请日：2018-11-06

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Lalitha Venkataramanan ,  Lin Liang ,  Vasileios-Marios Gkortsas ,  Khaled Hadj-Sassi ,  Albina Mutina ,  Tarek Habashy

IPC: G01V3/32 ,  G01V3/40

CPC classification number: G01V3/32 ,  G01V3/40

Abstract: A method, computer program product, and computing system for receiving downhole logging data for a porous media. A pore size distribution index may be estimated based upon, at least in part, nuclear magnetic resonance data (NMR) from the downhole logging data of the porous media. A relative permeability and capillary pressure curve may be generated with a feasible region of solutions based upon, at least in part, the pore size distribution index.

公开(公告)号：US20210396904A1

公开(公告)日：2021-12-23

申请号：US16761471

申请日：2018-11-06

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION ,  SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER TECHNOLOGY B.V.

Inventor： Lalitha Venkataramanan ,  Lin Liang ,  Vasileios-Marios Gkortsas ,  Khaled Hadj-Sassi ,  Albina Mutina ,  Tarek Habashy

IPC: G01V3/32 ,  G01V3/40

Abstract: A method, computer program product, and computing system for receiving downhole logging data for a porous media. A pore size distribution index may be estimated based upon, at least in part, nuclear magnetic resonance data (NMR) from the downhole logging data of the porous media. A relative permeability and capillary pressure curve may be generated with a feasible region of solutions based upon, at least in part, the pore size distribution index.

公开(公告)号：US20160033673A1

公开(公告)日：2016-02-04

申请号：US14880404

申请日：2015-10-12

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Lin Liang ,  Aria Abubakar ,  Tarek Habashy ,  Michael Thambynayagam

IPC: G01V3/38 ,  G01N15/08 ,  G01V3/28

CPC classification number: G01V3/38 ,  G01N15/088 ,  G01V3/28 ,  Y02A90/344

Abstract: Methods and related systems are described relating to an inversion approach for interpreting the geophysical electromagnetic data. The inversion can be constrained by using a multiphase fluid flow simulator (incorporating pressure data if available) which simulates the fluid flow process and calculates the spatial distribution of the water saturation and the salt concentration, which are in turn transformed into the formation conductivity using a resistivity-saturation formula. In this way, the inverted invasion profile is consistent with the fluid flow physics and moreover accounts for gravity segregation effects. Jointly with the pressure data, the inversion estimates a parametric one-dimensional distribution of permeability and porosity. The fluid flow volume is directly inverted from the fluid-flow-constrained inversion of the electromagnetic data. The approach is not limited by the traditional interpretation of the formation test, which is based on a single-phase model without taking into account invasion or assuming that the fluid, for example mud-filtrate, has been cleaned up from the formation testing zone. The joint inversion of the electromagnetic and pressure data provides for a more reliable interpretation of formation permeability. One advantage of the approaches described herein, is its possible generalization to three-dimensional geometries, for example dipping beds and highly deviated wells.

Abstract translation: 描述了用于解释地球物理电磁数据的反演方法的方法和相关系统。 可以通过使用模拟流体流动过程并计算水饱和度和盐浓度的空间分布的多相流体流动模拟器（包括压力数据（如果可用的话））来限制反转，其进而通过使用 电阻率 - 饱和度公式。 以这种方式，反向侵入曲线与流体物理学一致，并且还考虑到重力分离效应。 与压力数据联合，反演估计了渗透率和孔隙度的参数一维分布。 流体流量与电磁数据的流体流限制反转直接相反。 该方法不受传统的形成测试的解释的限制，该方法基于单相模型，而不考虑入侵或假设流体，例如泥浆滤液已经从地层测试区域清除。 电磁和压力数据的联合反演提供了对地层渗透率的更可靠的解释。 本文描述的方法的一个优点是其可能推广到三维几何形状，例如浸渍床和高度偏斜的孔。