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1.发明申请公开(公告)号：US20150212227A1
公开(公告)日：2015-07-30
申请号：US14237898
申请日：2013-03-01
Applicant: Halliburton Energy Services, Inc.
Inventor： Songhua Chen , Ronald E. Cherry , Magdalena Sandor
CPC classification number: G01V3/32 , G01N24/081 , G01V3/34 , G01V3/38
Abstract: Downhole nuclear magnetic resonance (NMR) methods that utilize oleophilic nanoparticle may allow for differentiation of light oil and oil-based filtrates. For example, a method may involve drilling a wellbore penetrating a subterranean formation using an oil-based drilling fluid that comprises an oil base fluid and a plurality of oleophilic nanoparticles; performing a plurality of NMR measurements at a plurality of depths of investigation (DOI) of a near-wellbore portion of the subterranean formation; and producing an invasion profile of an oil-based drilling fluid filtrate into the near-wellbore portion of the subterranean formation based on the plurality of NMR measurements.
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Patent Agency Ranking
2.发明授权Downhole differentiation of light oil and oil-based filtrates by NMR with oleophilic nanoparticles 有权通过核磁共振和亲油纳米粒子对轻油和油基滤液进行井下分化公开(公告)号：US09465133B2
公开(公告)日：2016-10-11
申请号：US14176181
申请日：2014-02-10
Applicant: Halliburton Energy Services, Inc.
Inventor： Songhua Chen , Ronald E. Cherry , Magdalena Sandor
CPC classification number: G01V3/32
Abstract: Downhole nuclear magnetic resonance (NMR) methods that utilize oleophilic nanoparticle may allow for differentiation of light oil and oil-based filtrates. For example, a method may involve drilling a wellbore penetrating a subterranean formation using an oil-based drilling fluid that comprises an oil base fluid and a plurality of oleophilic nanoparticles; performing a plurality of NMR measurements at a plurality of depths of investigation (DOI) of a near-wellbore portion of the subterranean formation; and producing an invasion profile of an oil-based drilling fluid filtrate into the near-wellbore portion of the subterranean formation based on the plurality of NMR measurements.
Abstract translation: 使用亲油性纳米颗粒的井下核磁共振（NMR）方法可以允许轻油和油基滤液的分化。 例如，一种方法可以包括使用包含油基流体和多个亲油性纳米颗粒的油基钻井液钻井穿透地下地层; 在地下地层近井眼部分的多个勘测深度（DOI）下执行多个NMR测量; 并且基于多个NMR测量，将油基钻井液滤液的侵入曲线产生到地下地层的近井筒部分。
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公开(公告)号：US11280931B2
公开(公告)日：2022-03-22
申请号：US16079977
申请日：2017-05-09
Applicant: Halliburton Energy Services, Inc.
Inventor： Yusheng Cheng , Songhua Chen , Magdalena Sandor , Wei Shao
Abstract: A method for estimating a property of an earth formation is provided. At least one porosity dataset is received. The porosity dataset is analysed to determine pore-throat size distribution. A NMR measurements dataset is received from a NMR tool. The dataset is analyzed to determine a distribution of a first relaxation time versus a second relaxation time. Distribution of a ratio of the first relaxation time to the second relaxation time is determined by calculating a ratio between a geometric mean of the first relaxation and the second relaxation time. A threshold for the ratio of the first relaxation time to the second relaxation time is selected. The threshold indicates a value of the ratio corresponding to pore sizes not contributing to property of the formation. The property of the formation is determined using the determined threshold for the ratio of the first relaxation time to the second relaxation time.
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4.发明申请Downhole Differentiation of Light Oil and Oil-Based Filtrates by NMR with Oleophilic Nanoparticles 有权通过核磁共振纳米粒子的轻油和油基滤液的井下分化公开(公告)号：US20150145512A1
公开(公告)日：2015-05-28
申请号：US14176181
申请日：2014-02-10
Applicant: Halliburton Energy Services, Inc.
Inventor： Songhua Chen , Ronald E. Cherry , Magdalena Sandor
IPC: G01V3/32
CPC classification number: G01V3/32
Abstract: Downhole nuclear magnetic resonance (NMR) methods that utilize oleophilic nanoparticle may allow for differentiation of light oil and oil-based filtrates. For example, a method may involve drilling a wellbore penetrating a subterranean formation using an oil-based drilling fluid that comprises an oil base fluid and a plurality of oleophilic nanoparticles; performing a plurality of NMR measurements at a plurality of depths of investigation (DOI) of a near-wellbore portion of the subterranean formation; and producing an invasion profile of an oil-based drilling fluid filtrate into the near-wellbore portion of the subterranean formation based on the plurality of NMR measurements.
Abstract translation: 使用亲油性纳米颗粒的井下核磁共振（NMR）方法可以允许轻油和油基滤液的分化。 例如，一种方法可以包括使用包含油基流体和多个亲油性纳米颗粒的油基钻井液钻井穿透地下地层; 在地下地层近井眼部分的多个勘测深度（DOI）下执行多个NMR测量; 并且基于多个NMR测量，将油基钻井液滤液的侵入曲线产生到地下地层的近井筒部分。
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公开(公告)号：US20210190989A1
公开(公告)日：2021-06-24
申请号：US16079977
申请日：2017-05-09
Applicant: Halliburton Energy Services, Inc.
Inventor： Yusheng Cheng , Songhua Chen , Magdalena Sandor , Wei Shao
Abstract: A method for estimating a property of an earth formation is provided. At least one porosity dataset is received. The porosity dataset is analysed to determine pore-throat size distribution. A NMR measurements dataset is received from a NMR tool. The dataset is analyzed to determine a distribution of a first relaxation time versus a second relaxation time. Distribution of a ratio of the first relaxation time to the second relaxation time is determined by calculating a ratio between a geometric mean of the first relaxation and the second relaxation time. A threshold for the ratio of the first relaxation time to the second relaxation time is selected. The threshold indicates a value of the ratio corresponding to pore sizes not contributing to property of the formation. The property of the formation is determined using the determined threshold for the ratio of the first relaxation time to the second relaxation time.
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6.发明授权公开(公告)号：US09791589B2
公开(公告)日：2017-10-17
申请号：US14237898
申请日：2013-03-01
Applicant: Halliburton Energy Services, Inc.
Inventor： Songhua Chen , Ronald E. Cherry , Magdalena Sandor
CPC classification number: G01V3/32 , G01N24/081 , G01V3/34 , G01V3/38
Abstract: Downhole nuclear magnetic resonance (NMR) methods that utilize oleophilic nanoparticle may allow for differentiation of light oil and oil-based filtrates. For example, a method may involve drilling a wellbore penetrating a subterranean formation using an oil-based drilling fluid that comprises an oil base fluid and a plurality of oleophilic nanoparticles; performing a plurality of NMR measurements at a plurality of depths of investigation (DOI) of a near-wellbore portion of the subterranean formation; and producing an invasion profile of an oil-based drilling fluid filtrate into the near-wellbore portion of the subterranean formation based on the plurality of NMR measurements.
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