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公开(公告)号：US10927667B2
公开(公告)日：2021-02-23
申请号：US15877588
申请日：2018-01-23
Applicant: Silixa Ltd. , CHEVRON U.S.A. INC.
Inventor： Mahmoud Farhadiroushan , Tom Parker , Daniel Finfer , Veronique Mahue
IPC: E21B47/135 , G01P5/24 , G01N29/46 , E21B47/0224 , G01F1/708 , G01N29/024
Abstract: Externally generated noise can be coupled into a fluid carrying structure such as a pipe, well, or borehole so as to artificially acoustically “illuminate” the pipe, well, or borehole, and allow fluid flow in the structure or structural integrity to be determined. In the disclosed system, externally generated noise is coupled into the structure being monitored at the same time as data logging required to undertake the monitoring is performed. This has three effects. First, the externally generated sound is coupled into the structure so as to “illuminate” acoustically the structure to allow data to be collected from which fluid flow may be determined, and secondly the amount of data that need be collected is reduced, as there is no need to log data when the structure is not being illuminated. Thirdly, there are signal processing advantages in having the data logging being undertaken only when the acoustic illumination occurs.
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公开(公告)号：US11768179B2
公开(公告)日：2023-09-26
申请号：US17102221
申请日：2020-11-23
Applicant: Silixa Ltd , Chevron U.S.A. Inc.
Inventor： Mohammad Amir , Mahmoud Farhadiroushan , Daniel Finfer , Veronique Mahue , Tom Parker
CPC classification number: G01N29/024 , G01F1/661 , G01F1/666 , G01F1/708 , G01F1/74 , G01N29/2418 , G01N29/46 , G01N2291/0222 , G01N2291/02433 , G01N2291/02809 , G01N2291/02836
Abstract: Embodiments of the invention provide a “tool-kit” of processing techniques which can be employed in different combinations depending on the circumstances. For example, flow speed can be found using eddy tracking techniques, or by using speed of sound measurements. Moreover, composition can be found by using speed of sound measurements and also by looking for turning points in the k-w curves, particularly in stratified multi-phase flows. Different combinations of the embodiments can therefore be put together to provide further embodiments, to meet particular flow sensing requirements, both on the surface and downhole. Once the flow speed is known, then at least in the case of a single phase flow, the flow speed can be multiplied by the interior cross-sectional area of the pipe to obtain the flow rate. The mass flow rate can then be obtained if the density of the fluid is known, once the composition has been determined.
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公开(公告)号：US20180231498A1
公开(公告)日：2018-08-16
申请号：US15749977
申请日：2016-08-05
Applicant: Silixa Ltd. , Chevron U.S.A. Inc.
Inventor： Mohammad Amir , Mahmoud Farhadiroushan , Daniel Finfer , Veronique Mahue , Tom Parker
IPC: G01N29/024 , G01N29/24 , G01F1/66 , G01F1/74 , G01N29/46
CPC classification number: G01N29/024 , G01F1/661 , G01F1/666 , G01F1/708 , G01F1/74 , G01N29/2418 , G01N29/46 , G01N2291/0222 , G01N2291/02433 , G01N2291/02809 , G01N2291/02836
Abstract: Embodiments of the invention provide a “tool-kit” of processing techniques which can be employed in different combinations depending on the circumstances. For example, flow speed can be found using eddy tracking techniques, or by using speed of sound measurements. Moreover, composition can be found by using speed of sound measurements and also by looking for turning points in the k-ω curves, particularly in stratified multi-phase flows. Different combinations of the embodiments can therefore be put together to provide further embodiments, to meet particular flow sensing requirements, both on the surface and downhole. Once the flow speed is known, then at least in the case of a single phase flow, the flow speed can be multiplied by the interior cross-sectional area of the pipe to obtain the flow rate. The mass flow rate can then be obtained if the density of the fluid is known, once the composition has been determined.
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公开(公告)号：US09989388B2
公开(公告)日：2018-06-05
申请号：US15029480
申请日：2014-10-15
Applicant: SILIXA LTD. , Chevron U.S.A. Inc.
Inventor： Mahmoud Farhadiroushan , Daniel Finfer , Veronique Mahue , Tom Parker , Sergey Shatalin , Dmitry Strusevich
CPC classification number: G01F1/661 , G01D5/3537 , G02B6/4415
Abstract: Embodiments of the present invention provide a cable for optical fiber sensing applications formed from fiber wound around a cable core. A protective layer is then preferably placed over the top of the wound fiber, to protect the fiber, and to help keep it in place on the cable core. The cable core is preferably of a diameter to allow bend-insensitive fiber to be wound thereon with low bending losses. The effect of winding the fiber onto the cable core means that the longitudinal sensing resolution of the resulting cable is higher than simple straight fiber, when the cable is used with an optical fiber sensing system such as a DAS or DTS system. The achieved resolution for the resulting cable is a function of the fiber winding diameter and pitch, with a larger diameter and reduced winding pitch giving a higher longitudinal sensing resolution.
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公开(公告)号：US20210072190A1
公开(公告)日：2021-03-11
申请号：US17102221
申请日：2020-11-23
Applicant: Silixa Ltd , Chevron U.S.A. Inc.
Inventor： Mohammad Amir , Mahmoud Farhadiroushan , Daniel Finfer , Veronique Mahue , Tom Parker
Abstract: Embodiments of the invention provide a “tool-kit” of processing techniques which can be employed in different combinations depending on the circumstances. For example, flow speed can be found using eddy tracking techniques, or by using speed of sound measurements. Moreover, composition can be found by using speed of sound measurements and also by looking for turning points in the k-w curves, particularly in stratified multi-phase flows. Different combinations of the embodiments can therefore be put together to provide further embodiments, to meet particular flow sensing requirements, both on the surface and downhole. Once the flow speed is known, then at least in the case of a single phase flow, the flow speed can be multiplied by the interior cross-sectional area of the pipe to obtain the flow rate. The mass flow rate can then be obtained if the density of the fluid is known, once the composition has been determined.
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Patent Agency Ranking
公开(公告)号：US20180149017A1
公开(公告)日：2018-05-31
申请号：US15877588
申请日：2018-01-23
Applicant: Silixa Ltd.
Inventor： Mahmoud Farhadiroushan , Tom Parker , Daniel Finfer , Veronique Mahue
IPC: E21B47/12 , G01N29/024 , E21B47/022 , G01F1/708 , G01N29/46 , G01P5/24
CPC classification number: E21B47/123 , E21B47/02208 , G01F1/7086 , G01N29/024 , G01N29/46 , G01N2291/02836 , G01N2291/106 , G01P5/241
Abstract: Externally generated noise can be coupled into a fluid carrying structure such as a pipe, well, or borehole so as to artificially acoustically “illuminate” the pipe, well, or borehole, and allow fluid flow in the structure or structural integrity to be determined. In the disclosed system, externally generated noise is coupled into the structure being monitored at the same time as data logging required to undertake the monitoring is performed. This has three effects. First, the externally generated sound is coupled into the structure so as to “illuminate” acoustically the structure to allow data to be collected from which fluid flow may be determined, and secondly the amount of data that need be collected is reduced, as there is no need to log data when the structure is not being illuminated. Thirdly, there are signal processing advantages in having the data logging being undertaken only when the acoustic illumination occurs.
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公开(公告)号：US09896929B2
公开(公告)日：2018-02-20
申请号：US14440138
申请日：2013-11-01
Applicant: Silixa Ltd.
Inventor： Mahmoud Farhadiroushan , Tom Parker , Daniel Finfer , Veronique Mahue
IPC: G01N29/04 , E21B47/12 , G01F1/66 , G01P5/24 , G01N29/024 , G01N29/46 , E21B47/022 , G01F1/708
CPC classification number: E21B47/123 , E21B47/02208 , G01F1/7086 , G01N29/024 , G01N29/46 , G01N2291/02836 , G01N2291/106 , G01P5/241
Abstract: Externally generated noise can be coupled into a fluid carrying structure such as a pipe, well, or borehole so as to artificially acoustically “illuminate” the pipe, well, or borehole, and allow fluid flow in the structure or structural integrity to be determined. In the disclosed system, externally generated noise is coupled into the structure being monitored at the same time as data logging required to undertake the monitoring is performed. This has three effects. First, the externally generated sound is coupled into the structure so as to “illuminate” acoustically the structure to allow data to be collected from which fluid flow may be determined, and secondly the amount of data that need be collected is reduced, as there is no need to log data when the structure is not being illuminated. Thirdly, there are signal processing advantages in having the data logging being undertaken only when the acoustic illumination occurs.
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公开(公告)号：US20170016312A1
公开(公告)日：2017-01-19
申请号：US15122038
申请日：2015-03-02
Applicant: Silixa Ltd.
Inventor： Andrew Clarke , Daniel Finfer , Veronique Mahue , Tom Parker , Mahmoud Farhadiroushan
IPC: E21B47/00 , G01F23/296 , E21B43/12 , E21B47/04 , E21B47/10
CPC classification number: E21B47/0007 , E21B43/128 , E21B47/042 , E21B47/101 , E21B47/123 , G01F23/2968 , G01H9/004
Abstract: In order to address the above noted problems, embodiments of the present invention use distributed acoustic sensing to monitor the fluid level in an ESP activated well so as to monitor the condition and performance of the ESP. Embodiments of the invention use the ESP as an acoustic source in order to monitor the annulus fluid level within the well and to monitor the frequency of the ESP. Additionally, embodiments of the present invention may use distributed acoustic sensing to monitor the flow rates of the production fluid above and below the ESP to determine the pump's efficiency. In particular, some embodiments utilise one or more optical fibers to measure the acoustic waves generated by the ESP, wherein the fiber cabling has already been deployed along the length of the well. As such, the present invention is a non-invasive, in-situ method for monitoring the condition and performance of an ESP.
Abstract translation: 为了解决上述问题，本发明的实施例使用分布式声学感测来监测ESP激活的井中的液位，以便监测ESP的状况和性能。 本发明的实施例使用ESP作为声源，以便监测井内的环状液体水平并监测ESP的频率。 此外，本发明的实施例可以使用分布式声学感测来监测ESP上方和下方的生产流体的流量，以确定泵的效率。 特别地，一些实施例利用一根或多根光纤来测量由ESP产生的声波，其中光纤布线已沿着该孔的长度展开。 因此，本发明是用于监测ESP的状况和性能的非侵入式原位方法。
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公开(公告)号：US20230054654A1
公开(公告)日：2023-02-23
申请号：US17820894
申请日：2022-08-19
Applicant: Silixa Ltd.
Inventor： Peter Dawson , Veronique Mahue , Vu Nguyen , Pete Richter , Yinghui Wu
Abstract: The present disclosure provides a method of processing data obtained from distributed optical fiber sensors to detect acoustic energy generated by a poroelastic effect of fractures in a structure, such as a rock formation. The sensing fiber of an optical fiber distributed sensing system may be deployed in the vicinity of the region where fracturing is occurring, for example, along a well that is offset from a treatment well undergoing hydraulic fracturing. The DAS data obtained from along the sensing fiber is processed to measure changes in the low-frequency strain caused by the poroelastic effects in the rock as the fractures open and close. This measured strain rate data is iteratively processed at each instant time to identify fracture opening features (characterised as compression-tension-compression) that are correlated with fracture closing features (characterised as tension-compression-tension) as a function of depth, to thereby identify and locate fracture hits in the vicinity of the sensing fiber.
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公开(公告)号：US10451462B2
公开(公告)日：2019-10-22
申请号：US15962196
申请日：2018-04-25
Applicant: SILIXA LTD. , CHEVRON USA INC.
Inventor： Mahmoud Farhadiroushan , Daniel Finfer , Veronique Mahue , Tom Parker , Sergey Shatalin , Dmitry Strusevich
Abstract: Embodiments of the present invention provide a cable for optical fiber sensing applications formed from fiber wound around a cable core. A protective layer is then preferably placed over the top of the wound fiber, to protect the fiber, and to help keep it in place on the cable core. The cable core is preferably of a diameter to allow bend-insensitive fiber to be wound thereon with low bending losses. The effect of winding the fiber onto the cable core means that the longitudinal sensing resolution of the resulting cable is higher than simple straight fiber, when the cable is used with an optical fiber sensing system such as a DAS or DTS system. The achieved resolution for the resulting cable is a function of the fiber winding diameter and pitch, with a larger diameter and reduced winding pitch giving a higher longitudinal sensing resolution.
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