-
41.发明公开公开(公告)号：US20240151139A1
公开(公告)日：2024-05-09
申请号：US18406875
申请日：2024-01-08
Applicant: Schlumberger Technology Corporation
Inventor： Hadrien Dumont , Vinay K. Mishra , German Garcia , Li Chen , Thomas Pfeiffer , Soraya S. Betancourt Pocaterra , Jerimiah Forsythe , Andrew Emil Pomerantz , Youxiang Zuo , Oliver C. Mullins
Abstract: Systems and methods for identifying a likelihood that a reservoir of a geological formation received a secondary charge of hydrocarbons of relatively very different thermal maturity of composition are provided. One method includes positioning a downhole acquisition tool in a wellbore in a geological formation and testing one or more fluid properties of the formation fluid. Data processing circuitry may identify whether a relationship of the one or more fluid properties exceeds a first threshold that indicates likely asphaltene instability. When this is the case, data processing circuitry may be used to model the geological formation using a realization scenario in which multiple charges of hydrocarbons of substantially different thermal maturity or substantially different composition, or both, filled a reservoir of the geological formation over geologic time.
-
42.发明授权公开(公告)号：US11692991B2
公开(公告)日：2023-07-04
申请号：US17533158
申请日：2021-11-23
Applicant: Schlumberger Technology Corporation
Inventor： Youxiang Zuo , Christopher Harrison , Adriaan Gisolf , Cosan Ayan , Michael Mallari Toribio , Chetankumar Natwarlal Desai , Oliver Clinton Mullins , Matthew T. Sullivan , Elizabeth Smythe
CPC classification number: G01N33/2823 , E21B47/00 , E21B47/06 , E21B49/005 , E21B49/08 , G01N7/00 , G01N21/31
Abstract: Embodiments of the disclosure can include systems, methods, and devices for determining saturation pressure of an uncontaminated fluid. Downhole saturation pressure measurements and downhole OBM filtrate contamination of a contaminated fluid may be obtained and a relationship may be determined between the saturation pressure measurements and OBM filtrate contamination. The relationship may be extrapolated to zero OBM filtrate contamination to determine the saturation pressure of the uncontaminated fluid. In some embodiments, OBM filtrate contamination may be determined from downhole saturation pressure measurements during pumpout of a fluid.
-
公开(公告)号：US11384637B2
公开(公告)日：2022-07-12
申请号：US14534813
申请日：2014-11-06
Applicant: Schlumberger Technology Corporation
Inventor： Kai Hsu , Adriaan Gisolf , Youxiang Zuo , Yong Chang , Beatriz E. Barbosa
Abstract: Embodiments of the disclosure can include systems and methods for formation fluid sampling. In one embodiment, a method can include monitoring a relationship between a first characteristic of a formation fluid extracted from a formation and a second characteristic of the formation fluid extracted from the formation, determining, based at least in part on the monitoring, that a linear trend is exhibited by the relationship between the first characteristic of the formation fluid extracted from the formation and the second characteristic of the formation fluid extracted from the formation, and determining a reservoir fluid breakthrough based at least in part on the identification of the linear trend, wherein the reservoir fluid breakthrough is indicative of virgin reservoir fluid entering a sampling tool.
-
公开(公告)号：US20210388721A1
公开(公告)日：2021-12-16
申请号：US17285925
申请日：2019-10-17
Applicant: Schlumberger Technology Corporation
Inventor： Kai Hsu , Thomas Pfeiffer , Kang Wang , Dan Schulz , Morten Kristensen , Youxiang Zuo
Abstract: A method includes receiving first fluid property data from a sample flowline of a focused sampling system and receiving second fluid property data from a guard flowline of the focused sampling system. The sample flowline and the guard flowline are each configured to sample formation fluid from a hydrocarbon reservoir, the formation fluid includes native formation fluid and a contaminant, and the first fluid property data includes an optical density of the native formation fluid and the second fluid property data includes an optical density of the contaminant
-
公开(公告)号：US10941655B2
公开(公告)日：2021-03-09
申请号：US14846591
申请日：2015-09-04
Applicant: Schlumberger Technology Corporation
Inventor： Adriaan Gisolf , Lei Jiang , Anthony Robert Holmes Goodwin , Youxiang Zuo
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 a fluid that includes a native reservoir fluid of the geological formation and a contaminant. The method also includes receiving a portion of the fluid into the downhole acquisition tool, obtaining a measured resistivity, a measured conductivity, or both of the portion of the fluid using the downhole acquisition tool, and using a processor of the downhole acquisition tool to obtain a temperature-corrected resistivity, a temperature-corrected conductivity, or both based on a downhole temperature of the portion of the fluid and the measured resistivity, the measured conductivity, or both.
-
Patent Agency Ranking
公开(公告)号：US20200072047A1
公开(公告)日：2020-03-05
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.
-
公开(公告)号：US10480316B2
公开(公告)日：2019-11-19
申请号：US15822293
申请日：2017-11-27
Applicant: Schlumberger Technology Corporation
Inventor： Hadrien Dumont , Youxiang Zuo , Beatriz E. Barbosa
Abstract: The present disclosure relates to methods and apparatus for determining a viscosity-pressure profile of downhole fluid by measuring the viscosity at several different pressures during a sampling operation. According to certain embodiments, the viscosity may be measured at different times during a sampling operation and used to generate the viscosity-pressure profile. For example, the viscosity may be measured at the beginning of pumping, during filling of a sample chamber, during a pressure-build up period, and while retracting the probe. The measured viscosities may then be employed to determine a profile that represents the change in viscosity that occurs with pressure.
-
公开(公告)号：US10472960B2
公开(公告)日：2019-11-12
申请号：US14975708
申请日：2015-12-18
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 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.
-
公开(公告)号：US20190264560A1
公开(公告)日：2019-08-29
申请号：US16411845
申请日：2019-05-14
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.
-
公开(公告)号：US10294785B2
公开(公告)日：2019-05-21
申请号：US14975700
申请日：2015-12-18
Applicant: Schlumberger Technology Corporation
Inventor： Kang Wang , Ryan Sangjun Lee , Youxiang Zuo , Sai Venkatakrishnan , XiaoWei Sheng , Suchart Chokthanyawat , Lei Jiang , Lixiang Sun
Abstract: Disclosed are methods and apparatus obtaining in-situ, real-time data associated with a sample stream obtained by a downhole sampling apparatus disposed in a borehole that extends into a subterranean formation. The obtained data includes multiple fluid properties of the sample stream. The sample stream includes native formation fluid from the subterranean formation and filtrate contamination resulting from formation of the borehole in the subterranean formation. The obtained data is filtered to remove outliers. The filtered data is fit to each of a plurality of models each characterizing a corresponding one of the fluid properties as a function of a pumpout volume or time of the sample stream. Based on the fitted data, a start of a developed flow regime of the native formation fluid within the subterranean formation surrounding the borehole is identified.
-
-
-
-
-
-
-
-
-
Search Results
116
records
(took 0.026 seconds)
