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公开(公告)号：US09091774B2
公开(公告)日：2015-07-28
申请号：US13833297
申请日：2013-03-15
Applicant: Schlumberger Technology Corporation
Inventor： Jeffrey Miles , Robert Badry , James A. Grau
CPC classification number: G01V5/045 , E21B47/04 , E21B47/082 , G01V5/125
Abstract: A method of analyzing a geologic formation having a borehole therein may include operating at least one tool within the borehole to collect respective borehole dimensions at different depths in the borehole, and collect respective total values for a given element at the different depths in the borehole. Each total value may be based upon both a value for an adjacent portion of the geologic formation and a value for material within the borehole. The method may also include determining each value of the given element in the adjacent portion of the geologic formation based upon the total value and the corresponding borehole dimensions.
Abstract translation: 分析其中具有钻孔的地质构造的方法可以包括在钻孔内操作至少一个工具以收集钻孔中不同深度处的相应钻孔尺寸，并且针对钻孔中不同深度处的给定元件收集相应的总值。 每个总值可以基于地质层的相邻部分的值和钻孔内的材料的值。 该方法还可以包括基于总值和对应的钻孔尺寸确定地质构造的相邻部分中的给定元素的每个值。
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12.发明申请公开(公告)号：US20140231640A1
公开(公告)日：2014-08-21
申请号：US14118871
申请日：2012-05-24
Applicant: Schlumberger Technology Corporation
Inventor： James A. Grau , Jeffrey Miles , Markus Berheide
IPC: G01V5/10
CPC classification number: G01V5/101
Abstract: A method for estimating an aspect of a formation using a nuclear spectroscopy tool includes placing a nuclear spectroscopy tool including a neutron source and a gamma ray detector into a borehole and performing a plurality of environmental measurements. Neutrons are emitted from the nuclear spectroscopy tool such that some of the neutrons generate gamma rays from a formation adjacent the nuclear spectroscopy tool, some of the neutrons generate gamma rays from elements within the nuclear spectroscopy tool and some of the neutrons generate gamma rays from an element in the drilling mud. An energy spectrum of gamma rays induced by the emitted neutrons can be detected with the tool and analyzed using a combination of standard spectra including at least two sub-standards that represent a common element or group of elements and that are differentiated based on location of neutron interaction, such as where the neutrons thermalize.
Abstract translation: 使用核分析工具估计地层的方面的方法包括将包括中子源和伽马射线检测器的核谱仪器放置在钻孔中并执行多个环境测量。 中子从核分析仪器发射，使得一些中子从邻近核光谱仪的地层产生γ射线，一些中子从核分析仪器内的元素产生伽马射线，一些中子产生来自 钻井泥浆中的元素。 可以用工具检测由发射的中子引起的伽马射线的能谱，并使用标准光谱的组合进行分析，标准光谱包括至少两个代表共同元素或元素组的子标准，并基于中子的位置 相互作用，例如中子热化的地方。
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公开(公告)号：US20210389495A1
公开(公告)日：2021-12-16
申请号：US17460825
申请日：2021-08-30
Applicant: Schlumberger Technology Corporation
Inventor： Pascal Millot , Adil Busaidy , Jeffrey Miles , Tong Zhou , Christian Stoller , David Rose , Richard Radtke
Abstract: A presence of cement may be identified based on a downhole tool that may emit neutrons into a wellbore having at least one cement casing. The neutrons may interact with the particular material via inelastic scattering, inelastic neutron reactions, capture of neutrons and/or neutron activation through one of these reactions and cause a material to emit an energy spectrum of gamma rays, and wherein the downhole tool is configured to detect an energy spectrum of the gamma rays that is specific to at least one of a plurality of elements and associated a region within the wellbore. An amount of elements, such as calcium and silicon, may be determined from the gamma ray spectra that may indicate a present of cement within the wellbore.
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14.发明授权公开(公告)号：US10809416B2
公开(公告)日：2020-10-20
申请号：US15845515
申请日：2017-12-18
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Sushil Shetty , Dzevat Omeragic , Tarek M. Habashy , John Rasmus , Jeffrey Miles
Abstract: Methods and apparatus for characterizing a subterranean formation traversed by a wellbore including collecting data from the formation using a tool wherein the tool collects data to form an azimuthal image, characterizing a section of the formation comprising data and images acquired in a high angle wellbore section or horizontal wellbore section using a parametric model, and performing an inversion using apparent densities and volumetric photoelectric factor images to build a formation model wherein the inversion is tailored for high angle wellbore sections and/or horizontal wellbore sections.
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公开(公告)号：US20190011598A1
公开(公告)日：2019-01-10
申请号：US15645153
申请日：2017-07-10
Applicant: Schlumberger Technology Corporation
Inventor： Tong Zhou , Jeffrey Miles
Abstract: Systems and methods are provided for distinguishing between elements located at different distances from a radiation detector used in neutron-induced gamma-ray spectroscopy using a Doppler effect. A pulsed neutron generator may emit neutrons out of a downhole tool in a geological formation at an energy level high enough to cause inelastic scattering with nuclei of an element to generate gamma-rays. A gamma-ray detector may detect the energy levels of the gamma-rays, in the reference frame of the detector, and data processing circuitry takes the detected spectrum of gamma-rays and distinguishes spectra of gamma-ray energy levels for nuclei of the element located nearer to or farther from the detector based at least in part on the Doppler shift of the energy levels of respective gamma-rays.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20180087376A1
公开(公告)日：2018-03-29
申请号：US15274277
申请日：2016-09-23
Applicant: Schlumberger Technology Corporation
Inventor： John Rasmus , Alex Ahrenst , Ana Peternell , Jeffrey Miles , Martinus Johannes Bernardus Bogaerts
IPC: E21B49/00 , G01V5/10 , E21B33/14 , E21B43/267 , E21B47/00
CPC classification number: E21B49/00 , E21B33/14 , E21B43/267 , E21B47/0005 , G01V5/101
Abstract: A method of performing a wellbore operation includes: circulating a doped wellbore fluid comprising a non-radioactive doped particulate material in a wellbore; and logging the wellbore with a logging-while-drilling tool to determine at least one characteristic of the doped wellbore fluid. A method of performing a wellbore operation includes: circulating a doped wellbore fluid comprising a non-radioactive doped particulate material in a wellbore; logging the wellbore with a logging tool; and determining a location of at least one fracture by elemental spectroscopy measurements.
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17.发明申请Environmental Corrections in Nuclear Spectroscopy Using Variable Shape Standard 审中-公开使用可变形状标准的核光谱学环境校正公开(公告)号：US20140138530A1
公开(公告)日：2014-05-22
申请号：US14118876
申请日：2012-05-24
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： James A. Grau , Jeffrey Miles , Markus Berheide
IPC: G01V5/10
CPC classification number: G01V5/101
Abstract: An aspect of a formation may be estimated by placing a nuclear spectroscopy tool including a neutron source and a gamma ray detector into a borehole and performing a plurality of environmental measurements. Neutrons are emitted from the nuclear spectroscopy tool such that some of the neutrons generate gamma rays from a formation adjacent the nuclear spectroscopy tool, some of the neutrons generate gamma rays from elements within the nuclear spectroscopy tool and some of the neutrons generate gamma rays from an element in the drilling mud. An energy spectrum of gamma rays induced by the emitted neutrons can be detected with the tool. The detected gamma-ray energy spectrum can be analyzed using a combination of standard spectra, where the shape of at least one of the standard spectra can be varied based on the environmental measurements to account for the environment's effects on gamma-ray spectra.
Abstract translation: 可以通过将包括中子源和γ射线检测器的核分析仪器放置在井眼中并执行多个环境测量来估计地层的一个方面。 中子从核分析仪器发射，使得一些中子从邻近核光谱仪的地层产生γ射线，一些中子从核分析仪器内的元素产生伽马射线，一些中子产生来自 钻井泥浆中的元素。 可以用工具检测由发射的中子引起的伽马射线的能谱。 可以使用标准光谱的组合来分析检测到的γ射线能谱，其中至少一个标准光谱的形状可以基于环境测量而变化，以考虑环境对γ射线光谱的影响。
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公开(公告)号：US20250052924A1
公开(公告)日：2025-02-13
申请号：US18723648
申请日：2023-01-05
Applicant: Schlumberger Technology Corporation
Inventor： Paul Ryan Craddock , Jeffrey Miles , Lalitha Venkataramanan , Harish Baban Datir , Prakhar Srivastava
Abstract: Rock properties of a geological formation may be determined using data representing elemental concentration within the geological formation. For example, the data representing the elemental concentration within the geological formation may be provided as input to a mapping function. The mapping function may capture nonlinear relationships among the concentrations of measurable elements in geological rock formation(s) and certain rock properties of said rock formation(s). Embodiments of the present disclosure are directed to techniques that improve determinations of rock properties of geological formations.
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公开(公告)号：US11774629B2
公开(公告)日：2023-10-03
申请号：US17460825
申请日：2021-08-30
Applicant: Schlumberger Technology Corporation
Inventor： Pascal Millot , Adil Busaidy , Jeffrey Miles , Tong Zhou , Christian Stoller , David Rose , Richard Radtke
Abstract: A presence of cement may be identified based on a downhole tool that may emit neutrons into a wellbore having at least one cement casing. The neutrons may interact with the particular material via inelastic scattering, inelastic neutron reactions, capture of neutrons and/or neutron activation through one of these reactions and cause a material to emit an energy spectrum of gamma rays, and wherein the downhole tool is configured to detect an energy spectrum of the gamma rays that is specific to at least one of a plurality of elements and associated a region within the wellbore. An amount of elements, such as calcium and silicon, may be determined from the gamma ray spectra that may indicate a present of cement within the wellbore.
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公开(公告)号：US20190383962A1
公开(公告)日：2019-12-19
申请号：US16442302
申请日：2019-06-14
Applicant: Schlumberger Technology Corporation
Inventor： Tong Zhou , David Rose , Jeffrey Miles
IPC: G01V5/10
Abstract: Elemental concentrations in subterranean formations may be determined using neutron spectroscopy. For example, neutrons may be emitted by a downhole tool into the formation and produce gamma rays via inelastic scattering of fast neutrons or capture of slow neutrons. The borehole surrounding a downhole tool may introduce artifacts in the neutron spectroscopy measurement. Embodiments of the present disclosure are directed to techniques that reduce artifacts signals in downhole tools that include one or multiple detectors based at least in part on the inelastic and capture measurements.
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