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    DISTRIBUTED PRESSURE MEASUREMENT SYSTEM FOR CORE FLOOD EXPERIMENTS
    1.
    发明申请
    DISTRIBUTED PRESSURE MEASUREMENT SYSTEM FOR CORE FLOOD EXPERIMENTS 有权

    公开(公告)号：US20220326136A1

    公开(公告)日：2022-10-13

    申请号：US17763733

    申请日：2020-10-02

    申请人： TOTAL S.E. ,  THE REGENTS OF THE UNIVERSITY OF MICHIGAN

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

    IPC分类号： G01N15/08 ,  G01N33/24

    摘要： 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.

    ENVIRONMENTAL LOGGING SYSTEM
    4.
    发明申请
    ENVIRONMENTAL LOGGING SYSTEM 审中-公开

    公开(公告)号：US20170205533A1

    公开(公告)日：2017-07-20

    申请号：US15410724

    申请日：2017-01-19

    申请人： The Regents of the University of Michigan

    发明人： Tao LI ,  Yogesh GIANCHANDANI ,  Yu SUI ,  Ryan MEREDITH

    IPC分类号： G01V11/00 ,  G01V9/00

    CPC分类号： G01V11/002

    摘要： An environmental logging system that includes a housing and an electronic logging circuit sealed within the housing. The logging circuit includes an energy source, transducer, charging circuit, trigger circuit, electronic control unit (ECU), and transmitter. The energy source is charged by the charging circuit using electricity from the transducer in response to external energy applied to the transducer. Commands may also be received by the circuit via the transducer. The ECU includes a processor, memory, and one or more sensors, and it operates under power from the energy source to store data from the sensor(s). The transmitter is coupled to the ECU and transmits the data via electromagnetic radiation outside the housing. The trigger circuit supplies operating power to the processor only when the voltage level of the energy source is above a minimum threshold. The housing may be a tubular shell filled with a polymeric material.