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公开(公告)号：US11105198B2
公开(公告)日：2021-08-31
申请号：US15087770
申请日：2016-03-31
Applicant: Schlumberger Technology Corporation
Inventor： Hadrien Dumont , Christopher Harrison , Youxiang Zuo , Christopher Albert Babin , Li Chen , Vinay K. Mishra , German Garcia , Abhishek Agarwal , Matthew T. Sullivan
Abstract: Methods for obtaining in-situ, multi-temperature measurements of fluid properties, such as saturation pressure and asphaltene onset pressure include obtaining a sample of formation fluid using a downhole acquisition tool positioned in a wellbore in a geological formation. The downhole acquisition tool may be stationed at a first depth in the wellbore that has an ambient first temperature. While stationed at the first depth, the downhole acquisition tool may test a first fluid property of the sample to obtain a first measurement point at approximately the first temperature. The downhole acquisition tool may be moved to a subsequent station at a new depth with an ambient second temperature, and another measurement point obtained at approximately the second temperature. From the measurement points, a temperature-dependent relationship of the first fluid property of the first formation fluid may be determined.
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公开(公告)号：US10533415B2
公开(公告)日：2020-01-14
申请号：US15183090
申请日：2016-06-15
Applicant: Schlumberger Technology Corporation
Inventor： German Garcia , Hadrien Dumont , Vinay K. Mishra , Li Chen , Abhishek Agarwal , Cosan Ayan
Abstract: A formation sampling method includes disposing a downhole tool comprising a packer and an expandable probe within a wellbore. The method also includes performing pressure transient testing by setting the expandable packer and the probe to engage a wall of the wellbore and measuring a pressure response at the expandable packer and the probe while withdrawing formation fluid into the downhole tool through the expandable packer. The method further includes monitoring a contamination level of the formation fluid during the pressure transient testing, and performing formation sampling with the probe in response to determining that the monitored contamination level meets a predetermined threshold.
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公开(公告)号：US20180181700A1
公开(公告)日：2018-06-28
申请号：US15392615
申请日：2016-12-28
Applicant: Schlumberger Technology Corporation
Inventor： Kai Hsu , Scott C. Cook , Daniel Schulz , Gregory Au , Samuel P. Subbarao , Abhishek Agarwal , Ashers Partouche
Abstract: Techniques for improving implementation of a downhole tool string to be deployed in a borehole formed in a sub-surface formation. In some embodiments, a design device determines a model that describes expected relationship between properties of the downhole tool string, the borehole, the sub-surface formation, and mud cake expected to be formed in the borehole; determines calibration locations along the borehole based on properties of the borehole; determines candidate spacer configurations based on contact force expected to occur at contact points between the downhole tool string and the mud cake when deployed with each of the candidate spacer configuration via the model; and determines a final spacer configuration to be used to attach one or more spacers along the downhole tool string based on expected head tension to move the downhole tool string when deployed in the borehole with each of the candidate spacer configurations via the model.
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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：US20210388722A1
公开(公告)日：2021-12-16
申请号：US17460923
申请日：2021-08-30
Applicant: Schlumberger Technology Corporation
Inventor： Hadrien Dumont , Christopher Harrison , Youxiang Zuo , Christopher Albert Babin , Li Chen , Vinay K. Mishra , German Garcia , Abhishek Agarwal , Matthew T. Sullivan
Abstract: Methods for obtaining in-situ, multi-temperature measurements of fluid properties, such as saturation pressure and asphaltene onset pressure, are provided. In one example, a sample of formation fluid is obtained using a downhole acquisition tool positioned in a wellbore in a geological formation. The downhole acquisition tool may be stationed at a first depth in the wellbore that has an ambient first temperature. While stationed at the first depth, the downhole acquisition tool may test a first fluid property of the sample to obtain a first measurement point at approximately the first temperature. The downhole acquisition tool may be moved to a subsequent station at a new depth with an ambient second temperature, and another measurement point obtained at approximately the second temperature. From the measurement points, a temperature-dependent relationship of the first fluid property of the first formation fluid may be determined.
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Patent Agency Ranking
公开(公告)号：US20170022809A1
公开(公告)日：2017-01-26
申请号：US15183090
申请日：2016-06-15
Applicant: Schlumberger Technology Corporation
Inventor： German Garcia , Hadrien Dumont , Vinay K. Mishra , Li Chen , Abhishek Agarwal , Cosan Ayan
CPC classification number: E21B49/088 , E21B49/10 , G01N21/31 , G01N21/94 , G01N33/24
Abstract: The present disclosure relates to a formation sampling method that includes disposing a downhole tool comprising a packer and an expandable probe within a wellbore. The method also includes performing pressure transient testing by setting the expandable packer and the probe to engage a wall of the wellbore and measuring a pressure response at the expandable packer and the probe while withdrawing formation fluid into the downhole tool through the expandable packer. The method further includes monitoring a contamination level of the formation fluid during the pressure transient testing, and performing formation sampling with the probe in response to determining that the monitored contamination level meets a predetermined threshold.
Abstract translation: 本公开涉及一种地层取样方法，其包括在井眼内设置包括封隔器和可扩张探针的井下工具。 该方法还包括通过将可膨胀封隔器和探头设置成接合井眼的壁并且在可膨胀封隔器和探针处测量压力响应，同时通过可膨胀封隔器将地层流体排入井下工具中来执行压力瞬态测试。 该方法还包括在压力瞬变测试期间监测地层流体的污染水平，并且响应于确定所监测的污染水平达到预定阈值，利用探针进行地层采样。
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公开(公告)号：US11725511B2
公开(公告)日：2023-08-15
申请号：US17460923
申请日：2021-08-30
Applicant: Schlumberger Technology Corporation
Inventor： Hadrien Dumont , Christopher Harrison , Youxiang Zuo , Christopher Albert Babin , Li Chen , Vinay K. Mishra , German Garcia , Abhishek Agarwal , Matthew T. Sullivan
CPC classification number: E21B49/10 , E21B47/07 , E21B49/0875
Abstract: Methods for obtaining in-situ, multi-temperature measurements of fluid properties, such as saturation pressure and asphaltene onset pressure include obtaining a sample of formation fluid using a downhole acquisition tool positioned in a wellbore in a geological formation. The downhole acquisition tool may be stationed at a first depth in the wellbore that has an ambient first temperature. While stationed at the first depth, the downhole acquisition tool may test a first fluid property of the sample to obtain a first measurement point at approximately the first temperature. The downhole acquisition tool may be moved to a subsequent station at a new depth with an ambient second temperature, and another measurement point obtained at approximately the second temperature. From the measurement points, a temperature-dependent relationship of the first fluid property of the first formation fluid may be determined.
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公开(公告)号：US10132164B2
公开(公告)日：2018-11-20
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
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：US10408697B2
公开(公告)日：2019-09-10
申请号：US15392615
申请日：2016-12-28
Applicant: Schlumberger Technology Corporation
Inventor： Kai Hsu , Scott C. Cook , Daniel Schulz , Gregory Au , Samuel P. Subbarao , Abhishek Agarwal , Ashers Partouche
Abstract: Techniques for improving implementation of a downhole tool string to be deployed in a borehole formed in a sub-surface formation. In some embodiments, a design device determines a model that describes expected relationship between properties of the downhole tool string, the borehole, the sub-surface formation, and mud cake expected to be formed in the borehole; determines calibration locations along the borehole based on properties of the borehole; determines candidate spacer configurations based on contact force expected to occur at contact points between the downhole tool string and the mud cake when deployed with each of the candidate spacer configuration via the model; and determines a final spacer configuration to be used to attach one or more spacers along the downhole tool string based on expected head tension to move the downhole tool string when deployed in the borehole with each of the candidate spacer configurations via the model.
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公开(公告)号：US20170284197A1
公开(公告)日：2017-10-05
申请号：US15087770
申请日：2016-03-31
Applicant: Schlumberger Technology Corporation
Inventor： Hadrien Dumont , Christopher Harrison , Youxiang Zuo , Christopher Albert Babin , Li Chen , Vinay K. Mishra , German Garcia , Abhishek Agarwal , Matthew T. Sullivan
IPC: E21B49/08
CPC classification number: E21B49/10 , E21B47/065 , E21B2049/085
Abstract: Methods for obtaining in-situ, multi-temperature measurements of fluid properties, such as saturation pressure and asphaltene onset pressure, are provided. In one example, a sample of formation fluid is obtained using a downhole acquisition tool positioned in a wellbore in a geological formation. The downhole acquisition tool may be stationed at a first depth in the wellbore that has an ambient first temperature. While stationed at the first depth, the downhole acquisition tool may test a first fluid property of the sample to obtain a first measurement point at approximately the first temperature. The downhole acquisition tool may be moved to a subsequent station at a new depth with an ambient second temperature, and another measurement point obtained at approximately the second temperature. From the measurement points, a temperature-dependent relationship of the first fluid property of the first formation fluid may be determined.
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