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公开(公告)号：US20230296581A1
公开(公告)日：2023-09-21
申请号：US18184708
申请日：2023-03-16
Applicant: Schlumberger Technology Corporation
Inventor： Bastian Sauerer
CPC classification number: G01N33/246 , G01N33/1833 , G01N21/95
Abstract: A method can include receiving, by a demulsifier analysis framework, tensiometer data for an oil and water field sample that includes an added candidate demulsifier, where the tensiometer data include rheology data with respect to frequency and where the demulsifier analysis framework includes a model derived at least in part on bottle test data for demulsifiers in oil and water emulsions; determining a performance characteristic for the candidate demulsifier with respect to the oil and water field sample using the tensiometer data as input to the model of the demulsifier analysis framework without performing a bottle test on the oil and water field sample; and outputting, by the demulsifier analysis framework, the performance characteristic for the candidate demulsifier with respect to breaking an emulsion of the oil and water field sample.
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公开(公告)号：US11550975B2
公开(公告)日：2023-01-10
申请号：US16940436
申请日：2020-07-28
Inventor： Sharath Chandra Mahavadi , Robin Singh , Wael Abdallah , Mohammed Al-Hamad , Bastian Sauerer , Shouxiang Ma , Leilei Zhang
IPC: G01N33/28 , E21B49/08 , G06F30/27 , G01N11/00 , G01N9/00 , G01V99/00 , E21B47/07 , G06F111/10 , E21B41/02 , E21B49/10 , E21B43/38
Abstract: Methods and systems are provided for characterizing interfacial tension (IFT) of reservoir fluids, which involves obtaining fluid property data that represents fluid properties of a reservoir fluid sample measured downhole at reservoir conditions, and inputting the fluid property data to a computational model that determines a value of oil-water IFT of the reservoir fluid sample based on the fluid property data. In embodiments, the fluid property data represents single-phase fluid properties of the reservoir fluid sample, such as fluid density and viscosity of an oil phase of the reservoir fluid sample and fluid density of a water phase of the reservoir fluid sample. In embodiments, the computation model can be based on machine learning or analytics combined with a thermodynamics-based physics model.
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公开(公告)号：US20220035971A1
公开(公告)日：2022-02-03
申请号：US16940436
申请日：2020-07-28
Applicant: Schlumberger Technology Corporation
Inventor： Sharath Chandra Mahavadi , Robin Singh , Wael Abdallah , Mohammed Al-Hamad , Bastian Sauerer , Shouxiang Ma , Leilei Zhang
Abstract: Methods and systems are provided for characterizing interfacial tension (IFT) of reservoir fluids, which involves obtaining fluid property data that represents fluid properties of a reservoir fluid sample measured downhole at reservoir conditions, and inputting the fluid property data to a computational model that determines a value of oil-water IFT of the reservoir fluid sample based on the fluid property data. In embodiments, the fluid property data represents single-phase fluid properties of the reservoir fluid sample, such as fluid density and viscosity of an oil phase of the reservoir fluid sample and fluid density of a water phase of the reservoir fluid sample. In embodiments, the computation model can be based on machine learning or analytics combined with a thermodynamics-based physics model.
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4.发明公开公开(公告)号：US20240191623A1
公开(公告)日：2024-06-13
申请号：US18065066
申请日：2022-12-13
Applicant: Schlumberger Technology Corporation
Inventor： Bastian Sauerer , Wael Abdallah
IPC: E21B49/08 , G01N23/2258 , G01N33/24
CPC classification number: E21B49/0875 , G01N23/2258 , G01N33/241 , E21B49/10
Abstract: A workflow is provided that extracts and isolates an oil/water interface of a formation fluid sample and employs a ToF-SIMS instrument to characterize properties of the oil-water interface of the formation fluid sample. Additionally or alternatively, the workflow can use a ToF-SIMS instrument to analyze a formation rock sample and characterize properties of the formation rock sample. The workflow can also involve combining the at least one property related to the oil-water interface of the formation fluid sample and the least one property related to the formation rock sample for output or display to a user.
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公开(公告)号：US20230114341A1
公开(公告)日：2023-04-13
申请号：US18065687
申请日：2022-12-14
Applicant: Schlumberger Technology Corporation
Inventor： Harold Pfutzner , Bastian Sauerer
IPC: E21B49/10 , G01J3/44 , E21B47/017 , E21B47/01
Abstract: A downhole tool has a tool body with an outer diameter equal to a borehole diameter, at least one cavity formed in and opening to an outer surface defining the outer diameter of the tool body, a light source, a filter, and a light detector mounted in the at least one cavity, and a window disposed at the opening of the at least one cavity, wherein the window encloses the cavity.
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Patent Agency Ranking
公开(公告)号：US11530611B2
公开(公告)日：2022-12-20
申请号：US15978322
申请日：2018-05-14
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Harold Pfutzner , Bastian Sauerer
Abstract: A downhole tool has a tool body with an outer diameter equal to a borehole diameter, at least one cavity formed in and opening to an outer surface defining the outer diameter of the tool body, a light source, a filter, and a light detector mounted in the at least one cavity, and a window disposed at the opening of the at least one cavity, wherein the window encloses the cavity.
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公开(公告)号：US11029250B2
公开(公告)日：2021-06-08
申请号：US16489188
申请日：2018-02-21
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Bastian Sauerer , Wael Abdallah
Abstract: A method for determining thermal maturity of a formation sample. The method includes: cleaning the formation sample to remove residues of drilling fluid and reservoir fluid to obtain a cleaned sample; performing Raman spectroscopic measurements on the cleaned sample to obtain a Raman spectrum for the cleaned sample; fitting at least a G (graphite) peak and a D1 (defect) peak to the Raman spectrum to obtain Raman shift values for the G peak and the D1 peak and a Raman band separation (RBS) value; using the RBS to generate a vitrinite reflection equivalent (VRe) value using a relationship correlating RBS to VRe; and displaying the VRe as an indicator of formation sample maturity for a depth in the formation from which the cleaned sample was obtained.
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公开(公告)号：US20200003694A1
公开(公告)日：2020-01-02
申请号：US16489188
申请日：2018-02-21
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Bastian Sauerer , Wael Abdallah
Abstract: A method for determining thermal maturity of a formation sample. The method includes: cleaning the formation sample to remove residues of drilling fluid and reservoir fluid to obtain a cleaned sample; performing Raman spectroscopic measurements on the cleaned sample to obtain a Raman spectrum for the cleaned sample; fitting at least a G (graphite) peak and a D1 (defect) peak to the Raman spectrum to obtain Raman shift values for the G peak and the D1 peak and a Raman band separation (RBS) value; using the RBS to generate a vitrinite reflection equivalent (VRe) value using a relationship correlating RBS to VRe; and displaying the VRe as an indicator of formation sample maturity for a depth in the formation from which the cleaned sample was obtained.
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公开(公告)号：US20250149126A1
公开(公告)日：2025-05-08
申请号：US18934581
申请日：2024-11-01
Applicant: Schlumberger Technology Corporation
Inventor： Bastian Sauerer , Moein Zeynolabedinpour , Kang Wang , Chandrashekhar Khandekar
Abstract: A method of selecting paraffin inhibitors for a target crude oil includes inputting one of more known properties of a target crude oil into a machine learning model and extrapolating unknown properties of a historical data set using a machine learning model. The machine learning model is trained on the historical data set that includes one or more properties of a plurality of crude oils, one or more properties of a plurality of paraffin inhibitors, and one or more paraffin inhibiting efficiencies of the paraffin inhibitors with the plurality of crude oils. Paraffin inhibiting efficiency is predicted based on the historical data set and extrapolated unknown properties for the plurality of paraffin inhibitors that may be used with the target crude oil. One or more of a list of crude oils having one or more properties within a numerical tolerance of the properties of the target crude oil, a list of paraffin inhibitors for use with the target crude oil, and a list of paraffin inhibitor properties are output.
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公开(公告)号：US12105078B2
公开(公告)日：2024-10-01
申请号：US18184708
申请日：2023-03-16
Applicant: Schlumberger Technology Corporation
Inventor： Bastian Sauerer
CPC classification number: G01N33/246 , G01N33/1833
Abstract: A method can include receiving, by a demulsifier analysis framework, tensiometer data for an oil and water field sample that includes an added candidate demulsifier, where the tensiometer data include rheology data with respect to frequency and where the demulsifier analysis framework includes a model derived at least in part on bottle test data for demulsifiers in oil and water emulsions; determining a performance characteristic for the candidate demulsifier with respect to the oil and water field sample using the tensiometer data as input to the model of the demulsifier analysis framework without performing a bottle test on the oil and water field sample; and outputting, by the demulsifier analysis framework, the performance characteristic for the candidate demulsifier with respect to breaking an emulsion of the oil and water field sample.
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