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公开(公告)号：US10704388B2
公开(公告)日：2020-07-07
申请号：US15465733
申请日：2017-03-22
Applicant: Schlumberger Technology Corporation
Inventor： Julian Pop , Vianney Bruned , Kentaro Indo , Sepand Ossia , Steven G. Villareal
Abstract: A method includes positioning a downhole acquisition tool in a well-logging device in a wellbore in a geological formation, where the wellbore or the geological formation, or both contain a reservoir fluid. The method includes performing downhole fluid analysis using a downhole acquisition tool in the wellbore to determine a plurality of fluid properties associated with the reservoir fluid. The method includes generating a nonlinear predictive control model representative of the plurality of fluid properties based at least in part on the downhole fluid analysis. The method includes adjusting the nonlinear predictive control model based at least in part on an output representative of a pump flow control sequence at a first time interval and the plurality of fluid properties.
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公开(公告)号：US20200017748A1
公开(公告)日：2020-01-16
申请号：US16335409
申请日：2017-09-12
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Xiaoran Hu , Shitong S. Zhu , Agathe Robisson , Sepand Ossia , Meng Qu
IPC: C09K8/44 , C09K8/42 , C09K8/575 , C08F32/08 , E21B33/138 , E21B43/267 , E21B33/134
Abstract: Methods may include introducing a polymerizable composition containing a polycyclic monomer and a catalyst into a subterranean formation; and polymerizing the polymerizable composition in the presence of the catalyst in situ to form a polymer. Methods may also include lowering a wellbore tool into the subterranean formation, wherein the tool contains a first partition containing a polymerizable composition, and a second partition containing a catalyst; releasing the polymerizable composition from the first partition; releasing the catalyst from the second partition; contacting the polymerizable composition and the catalyst in a mixing region; and reacting the polymerizable composition and the catalyst in situ to form a polymer.
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公开(公告)号：US20180320517A1
公开(公告)日：2018-11-08
申请号：US15772535
申请日：2016-11-01
Applicant: Schlumberger Technology Corporation
Inventor： Kentaro Indo , Julian J. Pop , Ji Qi , Sepand Ossia
CPC classification number: E21B49/10 , E21B47/06 , E21B2049/085 , G01L11/02 , G01V8/00
Abstract: A method includes pumping fluid from outside of a downhole tool through a flowline of the downhole tool with a pump. The method further includes taking a first plurality of measurements over time using at least one sensor and estimating a future saturation pressure of the fluid within the flowline at constant time increments via a processor based at least in part on the first plurality of measurements and a saturation pressure model. The method further includes adjusting the flowline pressure to maintain the pressure of the flowline above the estimated future saturation pressure.
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公开(公告)号：US20150176389A1
公开(公告)日：2015-06-25
申请号：US14135979
申请日：2013-12-20
Applicant: Schlumberger Technology Corporation
Inventor： Kai Hsu , Sepand Ossia
Abstract: A method for monitoring operation of a pumping system for pumping anomalies is provided. In one embodiment, the method includes operating a pump of a downhole tool to pump fluid through the downhole tool and continually measuring an operational parameter of the downhole tool over a period of time during pumping of the fluid through the downhole tool. The measurements of the operational parameter can be filtered, and the filtered measurements can be monitored to enable detection of pumping anomalies in the downhole tool. Additional systems, devices, and methods are also disclosed.
Abstract translation: 提供了一种用于监测泵送异常的泵送系统的操作的方法。 在一个实施例中，该方法包括操作井下工具的泵以将流体泵送通过井下工具，并且在泵送液体通过井下工具期间的一段时间内连续地测量井下工具的操作参数。 可以过滤操作参数的测量值，并且可以监测过滤的测量值，以便能够检测井下工具中的泵送异常。 还公开了附加的系统，装置和方法。
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公开(公告)号：US11643921B2
公开(公告)日：2023-05-09
申请号：US17052297
申请日：2019-05-02
Inventor： Sebastien Mannai , Tianxiang Su , Sepand Ossia , Choon Sooi Tan
IPC: E21B47/009 , E21B47/06 , E21B47/18 , E21B43/12
CPC classification number: E21B47/009 , E21B47/06 , E21B47/18 , E21B43/127
Abstract: Providing diagnostics or monitoring operation of a rod pressure includes using waves in production fluid produced by the rod pump may be used to determine one or more operating states of the rod pump. The one or more operating states of the rod pump may be used by a user to diagnose or monitor the operation of the rod pump.
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Patent Agency Ranking
公开(公告)号：US20200332648A1
公开(公告)日：2020-10-22
申请号：US16921398
申请日：2020-07-06
Applicant: Schlumberger Technology Corporation
Inventor： Kentaro Indo , Julian Pop , Maxim Yushko , Tudor Ioan Palaghita , Zeynep Alpman , Alexis Petit , Sepand Ossia , Tullio Moscato
Abstract: A method for sampling a downhole formation fluid includes pumping formation fluid into the flowline of a downhole sampling tool, measuring a saturation pressure of the formation fluid in the flowline while pumping, and adjusting the pumping rate such that the fluid pressure in the flowline remains within a predetermined threshold above the measured saturation pressure.
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公开(公告)号：US10746019B2
公开(公告)日：2020-08-18
申请号：US15772535
申请日：2016-11-01
Applicant: Schlumberger Technology Corporation
Inventor： Kentaro Indo , Julian J. Pop , Ji Qi , Sepand Ossia
Abstract: A method includes pumping fluid from outside of a downhole tool through a flowline of the downhole tool with a pump. The method further includes taking a first plurality of measurements over time using at least one sensor and estimating a future saturation pressure of the fluid within the flowline at constant time increments via a processor based at least in part on the first plurality of measurements and a saturation pressure model. The method further includes adjusting the flowline pressure to maintain the pressure of the flowline above the estimated future saturation pressure.
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公开(公告)号：US10689979B2
公开(公告)日：2020-06-23
申请号：US15623440
申请日：2017-06-15
Applicant: Schlumberger Technology Corporation
Inventor： Kentaro Indo , Maxim Yushko , Tudor Ioan Palaghita , Zeynep Alpman , Alexis Petit , Julian Pop , Sepand Ossia , Tullio Moscato
Abstract: A method for sampling a downhole formation fluid that includes pumping formation fluid into the flowline of a downhole sampling tool. The method also includes measuring a saturation pressure of the formation fluid in the flowline while pumping, and adjusting the pumping rate such that the fluid pressure in the flowline remains within a predetermined threshold above the measured saturation pressure.
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公开(公告)号：US10287880B2
公开(公告)日：2019-05-14
申请号：US15465788
申请日：2017-03-22
Applicant: Schlumberger Technology Corporation
Inventor： Kentaro Indo , Julian Pop , Sepand Ossia
Abstract: A downhole fluid testing system includes a downhole acquisition tool housing configured to be moved into a wellbore, where the wellbore contains fluid that comprises a native reservoir fluid of a geological formation and a contaminant. The system includes a pump to pump fluid through the downhole acquisition tool, a sensor configured to analyze portions of the fluid and obtain a fluid property the fluid from an optical spectrometer, including an optical density, and a controller coupled to the housing to receive a first plurality of measurements over time from the sensor, estimate a future saturation pressure of the fluid at specific time increments via a processor based in part on the first plurality of measurements and a saturation pressure model, and control a flow rate of the pump that causes the flow line pressure to remain above the estimated future saturation pressure plus a value of the associated uncertainty.
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公开(公告)号：US20170362936A1
公开(公告)日：2017-12-21
申请号：US15623440
申请日：2017-06-15
Applicant: Schlumberger Technology Corporation
Inventor： Kentaro Indo , Maxim Yushko , Tudor Ioan Palaghita , Zeynep Alpman , Alexis Petit , Julian Pop , Sepand Ossia , Tullio Moscato
Abstract: A method for sampling a downhole formation fluid includes pumping formation fluid into the flowline of a downhole sampling tool, measuring a saturation pressure of the formation fluid in the flowline while pumping, and adjusting the pumping rate such that the fluid pressure in the flowline remains within a predetermined threshold above the measured saturation pressure.
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