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公开(公告)号：US11125081B2
公开(公告)日：2021-09-21
申请号：US15790689
申请日：2017-10-23
Applicant: Schlumberger Technology Corporation
Inventor： Miroslav Slapal , Christopher Albert Babin , Daniel Palmer , Kai Hsu , Anthony Robert Holmes Goodwin , Julian Pop , Nathan Mathew Landsiedel , Adriaan Gisolf
Abstract: A method includes positioning a downhole acquisition tool in a wellbore in a geological formation. The method includes operating a pump module to gather information for a fluid outside of the downhole acquisition tool that enters the downhole acquisition tool from a first flowline, a second flowline, or both while the downhole acquisition tool is within the wellbore. Operating the pump module includes controlling a valve assembly to a first valve configuration that enables the fluid to flow into the downhole tool via the first flowline fluidly coupled to a first pump module. Operating the pump module includes controlling a valve assembly to a second valve configuration that enables the fluid to flow into the downhole tool via the second flowline fluidly coupled to a second pump module, and selectively using a turnaround module or a crossover portion disposed between the first flowline and the second flowline to permit discharging the fluid from one flowline to the other flowline by actuating a valve associated with the turnaround module when the first pump module or the second pump module is not in use.
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公开(公告)号：US10975693B2
公开(公告)日：2021-04-13
申请号：US16677040
申请日：2019-11-07
Applicant: Schlumberger Technology Corporation
Inventor： Ryan Sangjun Lee , Adriaan Gisolf , Youxiang Zuo
Abstract: Disclosed are methods and apparatus pertaining to processing in-situ, real-time data associated with fluid obtained by a downhole sampling tool. The processing includes generating a population of values for Ĉ, where each value of Ĉ is an estimated value of a fluid property for native formation fluid within the obtained fluid. The obtained data is iteratively fit to a predetermined model in linear space. The model relates the fluid property to pumpout volume or time. Each iterative fitting utilizes a different one of the values for Ĉ. A value Ĉ* is identified as the one of the values Ĉ that minimizes model fit error in linear space based on the iterative fitting. Selected values Ĉ that are near Ĉ* are then assessed to determine which one has a minimum integral error of nonlinearity in logarithmic space.
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公开(公告)号：US10585082B2
公开(公告)日：2020-03-10
申请号：US15135411
申请日：2016-04-21
Applicant: Schlumberger Technology Corporation
Inventor： Youxiang Zuo , Kang Wang , Adriaan Gisolf , Ryan Sangjun Lee
Abstract: A method includes operating a downhole acquisition tool in a wellbore in a geological formation. The wellbore or the geological formation, or both, contains first fluid that includes a native reservoir fluid of the geological formation and a contaminant. The method also includes receiving a portion of the first fluid into the downhole acquisition tool and determining a plurality of properties of the portion of the first fluid using the downhole acquisition tool. The plurality of properties includes a mass fraction of a component of the portion of the first fluid and a density of the portion of the first fluid. The method also includes using the processor to estimate a volume fraction of the contaminant in the portion of the first fluid based at least in part on a composition mass fraction function that depends at least on the mass fraction of the component in the portion of the first fluid and the density of the portion of the first fluid.
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公开(公告)号：US10316656B2
公开(公告)日：2019-06-11
申请号：US14697382
申请日：2015-04-27
Applicant: Schlumberger Technology Corporation
Inventor： Youxiang Zuo , Kang Wang , Adriaan Gisolf , Ryan Sangjun Lee , Oliver C. Mullins , Shu Pan
Abstract: A method includes identifying linearly behaving data within obtained data associated with fluid obtained from a subterranean formation. Shrinkage factor is determined based on the linearly behaving data. A function relating GOR data of the obtained fluid with the determined shrinkage factor is determined. A first linear relationship between optical density (OD) data of the obtained fluid and the function is determined. A second linear relationship between density data of the obtained fluid and the function is determined. An oil-based mud (OBM) filtrate contamination property of OBM filtrate within the obtained fluid based on the first linear relationship is determined. A native formation property of native formation fluid within the obtained fluid based on the second linear relationship is determined. A volume fraction of OBM filtrate contamination within the obtained fluid based on the OBM filtrate contamination property and the native formation property is estimated.
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公开(公告)号：US10316655B2
公开(公告)日：2019-06-11
申请号：US14085589
申请日：2013-11-20
Applicant: Schlumberger Technology Corporation
Inventor： Youxiang Zuo , Adriaan Gisolf , Ryan Lee , Cosan Ayan , Hadrien Dumont , Kang Wang , Chetankumar Desai , Oliver Mullins , Beatriz Barbosa
IPC: E21B49/08
Abstract: A method for performing contamination monitoring through estimation wherein measured data for optical density, gas to oil ratio, mass density and composition of fluid components are used to obtain plotting data and the plotting data is extrapolated to obtain contamination levels.
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Patent Agency Ranking
公开(公告)号：US20180320515A1
公开(公告)日：2018-11-08
申请号：US16025191
申请日：2018-07-02
Applicant: Schlumberger Technology Corporation
Inventor： Thomas Pfeiffer , Adriaan Gisolf , Vladislav Achourov , Geir Thomas Glattetre , Kathryn Briggs , Jan Erik Tvedten
CPC classification number: E21B49/008 , E21B49/00 , E21B49/08 , E21B49/082
Abstract: This disclosure relates to a downhole acquisition tool having a formation testing module. The formation testing module includes a fluid chamber comprising a piston and configured to store a fluid and to receive a flowback fluid from a geological formation, wherein the fluid is substantially free of solids. Additionally, the formation testing tool has a first conduit fluidly coupled to the fluid chamber and extending from a flowback conduit and a first outlet of the formation testing module, wherein the flowback conduit is configured fluidly coupled to the geological formation and configured to receive the flowback fluid from the geological formation, and wherein the first conduit is configured to receive the flowback fluid from the flowback conduit. Further, the formation testing module has a first flow control device positioned downstream from the fluid chamber, wherein the first flow control device is configured to control a flow of the fluid exiting the fluid chamber.
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公开(公告)号：US10024755B2
公开(公告)日：2018-07-17
申请号：US14861925
申请日：2015-09-22
Applicant: Schlumberger Technology Corporation
Inventor： Youxiang Zuo , Vinay K. Mishra , Hadrien Dumont , Adriaan Gisolf , Christopher Babin , Cosan Ayan , Beatriz E. Barbosa
Abstract: The present disclosure relates to systems and methods for determining an integrity of a sample chamber. In certain embodiments, formation fluid is collected from a subterranean formation within a sample chamber disposed in a downhole tool, the downhole tool is withdrawn from a wellbore, an estimated surface pressure of the collected formation fluid is determined, the estimated surface pressure of the collected formation fluid is compared with an actual surface pressure of the sample chamber, and the integrity of the sample chamber is determined based on the comparison of the estimated surface pressure and the actual surface pressure.
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公开(公告)号：US09714570B2
公开(公告)日：2017-07-25
申请号：US14319699
申请日：2014-06-30
Applicant: Schlumberger Technology Corporation
Inventor： Adriaan Gisolf
IPC: E21B49/00
CPC classification number: E21B49/008
Abstract: A downhole tool having multiple packers and a controller operable to operate the packers to establish upper, middle, and lower intervals. The controller then establishes the upper and lower intervals at formation pressure, and establishes the middle interval at hydrostatic pressure. The controller then creates a pressure signal in one of the upper and lower intervals and then records a resulting pressure transient in both of the upper and lower intervals. The controller is also operable to establish the middle interval at formation pressure and establish the upper and lower intervals at below hydrostatic pressure but above formation pressure, and then create the pressure signal in the middle interval and subsequently record a resulting pressure transient in the middle interval.
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公开(公告)号：US20170175524A1
公开(公告)日：2017-06-22
申请号：US14975698
申请日：2015-12-18
Applicant: Schlumberger Technology Corporation
Inventor： Hadrien Dumont , Christopher Harrison , Youxiang Zuo , Christopher Albert Babin , Abhishek Agarwal , Adriaan Gisolf
CPC classification number: E21B49/10 , E21B49/081
Abstract: Systems and methods for obtaining in-situ measurements of mixed formation fluids are provided. A downhole acquisition tool may move to a first station in a wellbore in a geological formation to collect a sample of first formation fluid from the first station. The downhole acquisition tool may move to a second station in the wellbore and a sample of second formation fluid may be collected. A proportion of the first formation fluid and the second formation fluid may be mixed within the downhole acquisition tool in-situ while the downhole acquisition tool is within the wellbore to obtain a formation fluid mixture. The formation fluid mixture may be passed into a fluid testing component of the downhole acquisition tool while the downhole acquisition tool is in the wellbore to measure fluid properties of the formation fluid mixture in-situ.
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公开(公告)号：US20170175521A1
公开(公告)日：2017-06-22
申请号：US14976982
申请日：2015-12-21
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Laurent Pirolli , Stephen Parks , Nathan Landsiedel , Adriaan Gisolf
IPC: E21B49/08
CPC classification number: E21B49/08 , E21B49/082 , E21B2049/085
Abstract: A method and an apparatus for characterizing a fluid provide for flowing a sample fluid through a microfluidic flow line and subsequently flushing the flowline with flushing fluid alone or together with heating and/or exposure to a pulsating electromagnetic field. A tracer fluid is injected and tracked in a microfluidic line based on known properties of the tracer fluid.
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