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1.发明授权公开(公告)号：US12130405B2
公开(公告)日：2024-10-29
申请号：US17950216
申请日：2022-09-22
发明人： Shouxiang Ma , Guodong Jin , Ryan Antle , Fei Le , Salah M Al-Ofi
摘要： A system for analysis of isolated and connected porosities of a porous formation using permittivity is disclosed. An electrical subsystem can provide electrical signals for one or more of the porous formation or a representation of the porous formation; and the system can determine one or more of a rate of permittivity change (RPC) or permittivity ratio (PR) from a first estimation model that relates permittivity measurements and frequencies that are associated with the electrical signals, so that the system can generate a second estimation model using one or more of the RPC or the PR, associated with the isolated and connected porosities, where the second estimation model can be used with a total porosity of the porous formation to estimate or predict an isolated porosity and a connected porosity of a production porous formation.
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2.发明申请公开(公告)号：US20230100983A1
公开(公告)日：2023-03-30
申请号：US17950216
申请日：2022-09-22
发明人： Shouxiang Ma , Guodong Jin , Ryan Antle , Fei Le , Salah M Al-Ofi
摘要： A system for analysis of isolated and connected porosities of a porous formation using permittivity is disclosed. An electrical subsystem can provide electrical signals for one or more of the porous formation or a representation of the porous formation; and the system can determine one or more of a rate of permittivity change (RPC) or permittivity ratio (PR) from a first estimation model that relates permittivity measurements and frequencies that are associated with the electrical signals, so that the system can generate a second estimation model using one or more of the RPC or the PR, associated with the isolated and connected porosities, where the second estimation model can be used with a total porosity of the porous formation to estimate or predict an isolated porosity and a connected porosity of a production porous formation.
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公开(公告)号：US11487040B2
公开(公告)日：2022-11-01
申请号：US16915491
申请日：2020-06-29
发明人： Yi Liu , Stanislav Wilhelm Forgang , John Jones , Carlos Rivero , Louis Perez , Fei Le , Babak Kouchmeshky , Yinxi Zhang
摘要： A multi-frequency tuning circuit includes a first branch including a first inductor and a first capacitor arranged in series and a second branch including a second inductor and a second capacitor arranged in series. The circuit is arranged within a circuitry module configured to be positioned between a source and a load, the first branch and the second branch both associated with loads, from the source, having low impedance frequencies. In order to improve transmitter antenna output power for downhole tools, the tuning circuit creates high impedance at operating frequencies between frequencies corresponding to low impedance.
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