公开(公告)号：US12044609B2

公开(公告)日：2024-07-23

申请号：US17763733

申请日：2020-10-02

Applicant: TOTAL S.E. ,  THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Yogesh B. Gianchandani ,  Tao Li ,  Partha Dutta ,  Alexander Benken ,  John-Richard Ordonez-Varela

IPC: G01N15/08 ,  G01L15/00 ,  G01L19/00 ,  G01N33/24

CPC classification number: G01N15/0826 ,  G01L15/00 ,  G01L19/0038 ,  G01N15/0806 ,  G01N33/24 ,  G01N2203/0232 ,  G01N2203/0617

Abstract: Investigating the permeability and porosity of geological samples is a routine element of geological studies, and is of particular interest in the oil and gas industry. Core-flood experiments are commonly performed on rock samples to measure transport characteristics in the laboratory. This disclosure reports the design and implementation of a high resolution distributed pressure measurement system for core-flood experiments. A series of microfabricated pressure sensors can be embedded in bolts that are housed within the pressurized polymer sheath that encases a rock core. A feedthrough technology has been developed to provide lead transfer between the sensors and system electronics across a 230-bar pressure difference. The system has been successfully benchtop tested with fluids such as synthetic oil and/or gas. Pressure measurements were recorded over a dynamic range of 20 bar with a resolution as small as 0.3 mbar.

公开(公告)号：US20220326136A1

公开(公告)日：2022-10-13

申请号：US17763733

申请日：2020-10-02

Applicant: TOTAL S.E. ,  THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Yogesh B. GIANCHANDANI ,  Tao LI ,  Partha DUTTA ,  Alexander BENKEN ,  John-Richard ORDONEZ-VARELA

IPC: G01N15/08 ,  G01N33/24

Abstract: Investigating the permeability and porosity of geological samples is a routine element of geological studies, and is of particular interest in the oil and gas industry. Core-flood experiments are commonly performed on rock samples to measure transport characteristics in the laboratory. This disclosure reports the design and implementation of a high resolution distributed pressure measurement system for core-flood experiments. A series of microfabricated pressure sensors can be embedded in bolts that are housed within the pressurized polymer sheath that encases a rock core. A feedthrough technology has been developed to provide lead transfer between the sensors and system electronics across a 230-bar pressure difference. The system has been successfully benchtop tested with fluids such as synthetic oil and/or gas. Pressure measurements were recorded over a dynamic range of 20 bar with a resolution as small as 0.3 mbar.