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公开(公告)号：US10101255B2
公开(公告)日：2018-10-16
申请号：US14851561
申请日：2015-09-11
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Yusuf Bilgin Altundas , Chaur-Jian Hsu , Terizhandur S. Ramakrishnan , Quincy K. Elias , Albert Perez, Jr.
Abstract: Methods and apparatus are provided for the measurement of the compressibility of reservoir fluid. A piezoelectric material is coupled to a wall of a fluid chamber. Compressibility is derived from measured pressure changes to the fluid resulting from volumetric changes to the fluid chamber imposed by the mechanical strain of the piezoelectric material resulting from an applied electric field.
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公开(公告)号：US20180080313A1
公开(公告)日：2018-03-22
申请号：US15563801
申请日：2016-03-30
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Yusuf Bilgin Altundas , Jiyao Li , Nikita Chugunov , Terizhandur S. Ramakrishnan
CPC classification number: E21B47/101 , E21B43/164 , G01V1/308 , G01V1/42 , G01V2210/163 , G01V2210/612 , G01V2210/6122
Abstract: Methods are provided for tracking carbon dioxide (CO2) migration in a hydrocarbon-bearing reservoir located under a cap rock in a formation. In one embodiment, at least one seismic source and a plurality of receivers are located in spaced boreholes in the formation with the sources and receivers located near or at the reservoir so that direct paths from the sources to the receivers extend through the reservoir. CO2 is injected from the borehole containing the seismic sources into the reservoir, and the sources are activated multiple times over days and seismic signals are detected at the receivers. From the detected signals, time-lapse travel delay of direct arrivals of the signals are found and are used to track CO2 in the reservoir as a function of time. In another embodiment, the sources and receivers are located above the reservoir, and reflected waves are utilized to track the CO2.
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公开(公告)号：US20170074096A1
公开(公告)日：2017-03-16
申请号：US14851561
申请日：2015-09-11
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Yusuf Bilgin Altundas , Jian Hsu , Terizhandur S. Ramakrishnan , Quincy Elias , Albert Perez
CPC classification number: G01N9/00 , E21B49/082 , E21B2049/085 , G01N11/00 , G01N33/28 , G01N33/2823 , G01N2203/0085
Abstract: Methods and apparatus are provided for the measurement of the compressibility of reservoir fluid. A piezoelectric material is coupled to a wall of a fluid chamber. Compressibility is derived from measured pressure changes to the fluid resulting from volumetric changes to the fluid chamber imposed by the mechanical strain of the piezoelectric material resulting from an applied electric field.
Abstract translation: 提供了用于测量储层流体的压缩性的方法和装置。 压电材料耦合到流体室的壁。 可压缩性来源于由施加的电场产生的由压电材料的机械应变施加的对流体室的体积变化所产生的流体的测量的压力变化。
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公开(公告)号：US10329903B2
公开(公告)日：2019-06-25
申请号：US14777131
申请日：2013-10-04
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Terizhandur S. Ramakrishnan , Yusuf Bilgin Altundas , Nikita Chugunov , Romain De Loubens , Francois B. Fayard
Abstract: Embodiments include constructing a reservoir model of an earth formation. The method may also include selecting a predetermined set of fundamental parameters to describe the earth formation and assigning initial values for the predetermined set of fundamental parameters for each of the plurality of layers. The method may include using the initial values for each of the plurality of layers. The method may include computing physical-response-relevant properties as a function of space and time for each of the plurality of layers using the solutions and then computing tool responses using the physical-response-relevant properties. The method may include installing an electrode array between an insulation portion of a metal casing provided in a borehole and a physical formation and obtaining formation measurement information from the electrode array, comparing the formation measurement information to the computed tool response to obtain an error signal and modifying the initial values in an iterative process.
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