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公开(公告)号：US10352161B2
公开(公告)日：2019-07-16
申请号：US14975704
申请日：2015-12-18
Applicant: Schlumberger Technology Corporation
Inventor： Youxiang Zuo , Adriaan Gisolf , Kang Wang , Ryan Sangjun Lee
Abstract: A downhole tool operable to pump a volume of contaminated fluid from a subterranean formation during an elapsed pumping time while obtaining in-situ, real-time data associated with the contaminated fluid. The contaminated fluid includes native formation fluid and oil-based mud (OBM) filtrate. A shrinkage factor of the contaminated fluid is determined based on the in-situ, real-time data. The contaminated fluid shrinkage factor is fit relative to pumped volume or pumping time to obtain a function relating the shrinkage factor with pumped volume or elapsed pumping time. A shrinkage factor of the native formation fluid is determined based on the function. A shrinkage factor of the OBM filtrate is also determined. OBM filtrate volume percentage is determined based on the shrinkage factor of the native formation fluid and the shrinkage factor of the OBM filtrate.
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公开(公告)号：US10294784B2
公开(公告)日：2019-05-21
申请号：US14956338
申请日：2015-12-01
Applicant: Schlumberger Technology Corporation
Inventor： Adriaan Gisolf , Kai Hsu , Yong Chang , Youxiang Zuo , Ryan Sangjun Lee , Ashers Partouche
Abstract: A method includes operating a downhole acquisition tool including a guard probe and a sample probe in a wellbore that contains a fluid that includes a native reservoir fluid and a contaminant. The method also includes receiving a first portion of fluid into the guard probe and a second portion of fluid into the sample probe, estimating a contamination level of the first or second portions based on a fluid property of the respective first and second portions, determining an initial guard flow rate of the first portion, determining an initial sample flow rate of the second portion, using a processor to adjust a guard flow rate of the second portion over pump time after the contamination level of the first portion is at or below a contamination level threshold, and adjust a sample flow rate of the first portion based on the adjusted guard flow rate and total flowrate.
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公开(公告)号：US20150176375A1
公开(公告)日：2015-06-25
申请号：US14135835
申请日：2013-12-20
Applicant: Schlumberger Technology Corporation
Inventor： Sylvain Bedouet , Adriaan Gisolf , Cosan Ayan , Peter Hegeman , Ryan Sangjun Lee
IPC: E21B43/12 , E21B49/08 , E21B33/127
CPC classification number: E21B49/081 , E21B33/12 , E21B34/06 , E21B43/12
Abstract: A tool is to be used within a wellbore including a wall and extending into a formation with formation fluid. The tool includes a packer expandable against the wellbore wall with ports included within the packer to enable formation fluid to flow into the tool from the formation. The ports are arranged in a first port configuration optimized based upon a first predetermined formation property.
Abstract translation: 在井筒内使用工具，包括墙壁，并延伸到具有地层流体的地层中。 该工具包括一个封隔器，该封隔器可扩展成靠近井筒壁，并具有封隔器内的端口，以使地层流体能够从地层流入工具。 端口被布置成基于第一预定形成特性优化的第一端口配置。
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公开(公告)号：US20150167457A1
公开(公告)日：2015-06-18
申请号：US14106540
申请日：2013-12-13
Applicant: Schlumberger Technology Corporation
Inventor： Ryan Sangjun Lee , Yong Chang , Ashers Partouche , Sylvain Bedouet
IPC: E21B49/08
CPC classification number: E21B49/081 , E21B47/124
Abstract: An inlet for a single packer, having at least one sample inlet and at least one guard inlet surrounding the periphery of the at least one sample inlet, wherein the at least one sample inlet has at least one side that is parallel to another side of the at least one sample inlet and the at least one sample inlet has at least two rounded ends connecting each of the parallel sides, and the at least one guard inlet has at least one side that is parallel to another side of the at least one guard inlet and the at least one guard inlet has at least two rounded ends connecting each of the parallel side of the guard inlet.
Abstract translation: 用于单个封隔器的入口，其具有至少一个样品入口和围绕所述至少一个样品入口的周边的至少一个保护入口，其中所述至少一个样品入口具有平行于所述至少一个样品入口的另一侧的至少一个侧面 至少一个样品入口和所述至少一个样品入口具有连接每个平行侧面的至少两个圆形端部，并且所述至少一个保护入口具有平行于所述至少一个保护入口的另一侧的至少一个侧面 并且所述至少一个防护入口具有连接防护入口的每个平行侧的至少两个圆形端。
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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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Patent Agency Ranking
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：US10352162B2
公开(公告)日：2019-07-16
申请号：US15005531
申请日：2016-01-25
Applicant: Schlumberger Technology Corporation
Inventor： Morten Kristensen , Cosan Ayan , Ryan Sangjun Lee , Nikita Chugunov
IPC: E21B49/10
Abstract: Methods and systems for generating and utilizing a proxy model that generates a pumping parameter as a function of contamination. The pumping parameter is descriptive of a pumpout time or volume of fluid to be obtained from a formation by a downhole sampling tool positioned in a wellbore extending into the formation. The contamination is a percentage of the fluid obtained by the downhole sampling tool that is not native to the formation. The proxy model is based on a true model that utilizes true model input parameters that include the pumping parameter, formation parameters descriptive of the formation, and a filtrate parameter descriptive of a drilling fluid utilized to form the wellbore. The output of the true model is the contamination as a function of the pumping parameter. The proxy model utilizes proxy model input parameters each related to one or more of the true model input parameters.
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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：US20190145254A1
公开(公告)日：2019-05-16
申请号：US16248097
申请日：2019-01-15
Applicant: Schlumberger Technology Corporation
Inventor： Ryan Sangjun Lee , Yong Chang , Ashers Partouche , Sylvain Bedouet
Abstract: An inlet for a single packer, having at least one sample inlet and at least one guard inlet surrounding the periphery of the at least one sample inlet, wherein the at least one sample inlet has at least one side that is parallel to another side of the at least one sample inlet and the at least one sample inlet has at least two rounded ends connecting each of the parallel sides, and the at least one guard inlet has at least one side that is parallel to another side of the at least one guard inlet and the at least one guard inlet has at least two rounded ends connecting each of the parallel side of the guard inlet.
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公开(公告)号：US20160186562A1
公开(公告)日：2016-06-30
申请号：US14975708
申请日：2015-12-18
Applicant: Schlumberger Technology Corporation
Inventor： Ryan Sangjun Lee , Adriaan Gisolf , Youxiang Zuo
CPC classification number: E21B49/081 , E21B2049/085 , G06Q50/02
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 for Ĉ that minimizes model fit error in linear space based on the iterative fitting. Selected values for Ĉ that are near Ĉ* are then assessed to determine which one has a minimum integral error of nonlinearity in logarithmic space.
Abstract translation: 公开了与由井下采样工具获得的与流体相关联的原位实时数据的方法和装置。 该处理包括生成Ĉ值的群体，其中Ĉ的每个值是所得流体内的天然地层流体的流体性质的估计值。 所获得的数据迭代地拟合到线性空间中的预定模型。 该模型将流体性质与泵送量或时间相关联。 每个迭代拟合使用Ĉ的不同值。 值Ĉ*被确定为基于迭代拟合使线性空间中模型拟合误差最小化的the值之一。 然后对接近Ĉ*的的选定值进行评估，以确定哪一个在对数空间中具有非线性的最小积分误差。
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