PHOTOACOUSTIC GAS DETECTION
    21.
    发明申请

    公开(公告)号:US20190017966A1

    公开(公告)日:2019-01-17

    申请号:US16031790

    申请日:2018-07-10

    Abstract: A downhole system includes a quartz enhanced photoacoustic spectrometer (QEPAS) configured to be positioned within a wellbore formed in a subterranean zone of a hydrocarbon formation, a sampling system coupled to the QEPAS, and a computer system connected to the QEPAS. The sampling system is configured to be positioned in the wellbore and obtain a sample of a wellbore fluid at a downhole location in the subterranean zone. The QEPAS is configured to spectroscopically scan the sample and to determine a plurality of quantities of a corresponding plurality of hydrocarbons in the same. The computer system includes one or more processors to perform operations including receiving the plurality of quantities of the plurality of hydrocarbons in the sample and determining a plurality of ratios, where each ratio is a ratio of one of the plurality of hydrocarbons with another of the plurality of hydrocarbons.

    NANO-LEVEL EVALUATION OF KEROGEN-RICH RESERVOIR ROCK
    23.
    发明申请
    NANO-LEVEL EVALUATION OF KEROGEN-RICH RESERVOIR ROCK 有权
    富含KEROGEN-RICH RESERVOIR ROCK的纳米级评估

    公开(公告)号:US20170067836A1

    公开(公告)日:2017-03-09

    申请号:US15250551

    申请日:2016-08-29

    Abstract: Examples of nano-level evaluation of kerogen-rich reservoir rock are described. A micro-scale beam is formed from kerogen-rich reservoir rock. The beam has reservoir rock and kerogen, which has polymeric properties. A maximum dimension of the micro-scale beam is at most 1000 micrometers. A mechanical experiment that includes a tension test or a compression test is performed on the micro-scale beam. The mechanical experiment is imaged using a scanning electron microscope (SEM). A material parameter of the kerogen in the micro-scale beam is determined based on results of the mechanical experiment and images obtained responsive to the imaging. The material parameter includes a behavior of the kerogen in response to the mechanical experiment. The behavior of the kerogen can be used to determine, among other things, the energy required to break kerogen in a kerogen-rich shale to improve hydraulic fracturing efficiency.

    Abstract translation: 描述了富含干酪根的储层岩石的纳米级评估实例。 由富集干酪根的储层岩石形成微尺度的光束。 梁具有储层岩石和油母质,具有聚合物性质。 微尺度光束的最大尺寸为至多1000微米。 在微尺度光束上进行包括张力测试或压缩测试的机械实验。 使用扫描电子显微镜(SEM)对机械实验进行成像。 基于机械实验的结果和响应于成像获得的图像来确定微尺度光束中的干酪根的材料参数。 材料参数包括干酪根响应于机械实验的行为。 干酪根的行为可用于确定干酪根富集页岩中干酪根干燥所需的能量,以提高水力压裂效率。

    Managing corrosion and scale buildup in a wellbore

    公开(公告)号:US11118427B2

    公开(公告)日:2021-09-14

    申请号:US16588861

    申请日:2019-09-30

    Abstract: A method of determining a risk of corrosion and scale formation of tubing in a wellbore includes receiving, from a plurality of first sensors positioned at a downhole location of a wellbore, first production stream information and receiving, from a plurality of second sensors positioned at an uphole location, second production stream information. The method also includes performing a material balance to determine a first value representing a difference between a first production steam flow rate at the downhole location and a second production stream flow rate at the uphole location. The method also includes determining a second value representing a critical metal ion concentration of the production stream and, based on a result of comparing the first value with a threshold and based on the second value, determining a third value representing a risk of corrosion and scale formation at the tubing disposed within the wellbore.

    Measuring source rock potential using a quantum electronic scanner

    公开(公告)号:US10852260B2

    公开(公告)日:2020-12-01

    申请号:US16864912

    申请日:2020-05-01

    Inventor: Sebastian Csutak

    Abstract: The present disclosure describes methods and systems for determining source rock potential in a subterranean region of a hydrocarbon reservoir. One method includes receiving, an electron spin resonance (ESR) image from an in-situ ESR scanner that is attached to a wellbore at a first subterranean location, wherein the wellbore extends into the subterranean region of the hydrocarbon reservoir; determining, a spin concentration level of a source rock in the first subterranean location based on the ESR image; and determining, the source rock potential at the first subterranean location based on the determined spin concentration level.

    Photoacoustic gas detection
    27.
    发明授权

    公开(公告)号:US10809229B2

    公开(公告)日:2020-10-20

    申请号:US16232249

    申请日:2018-12-26

    Abstract: A downhole system includes a quartz enhanced photoacoustic spectrometer (QEPAS) configured to be positioned within a wellbore formed in a subterranean zone of a hydrocarbon formation, a sampling system coupled to the QEPAS, and a computer system connected to the QEPAS. The sampling system is configured to be positioned in the wellbore and obtain a sample of a wellbore fluid at a downhole location in the subterranean zone. The QEPAS is configured to spectroscopically scan the sample and to determine a plurality of quantities of a corresponding plurality of hydrocarbons in the same. The computer system includes one or more processors to perform operations including receiving the plurality of quantities of the plurality of hydrocarbons in the sample and determining a plurality of ratios, where each ratio is a ratio of one of the plurality of hydrocarbons with another of the plurality of hydrocarbons.

    Measuring source rock potential using terahertz analysis

    公开(公告)号:US10598814B2

    公开(公告)日:2020-03-24

    申请号:US15852387

    申请日:2017-12-22

    Inventor: Sebastian Csutak

    Abstract: The present disclosure describes methods and systems for determining source rock potential in a subterranean region of a hydrocarbon reservoir. One method includes: receiving, a terahertz (THz) scanning image from an in-situ THz scanner that is attached to a wellbore at a first subterranean location, wherein the wellbore extends into the subterranean region of the hydrocarbon reservoir; identifying, components of a source rock in the first subterranean location based on the THz scanning image; and determining, the source rock potential at the first subterranean location based on the identified components of the source rock.

    Photoacoustic gas detection
    29.
    发明授权

    公开(公告)号:US10429350B2

    公开(公告)日:2019-10-01

    申请号:US16031790

    申请日:2018-07-10

    Abstract: A downhole system includes a quartz enhanced photoacoustic spectrometer (QEPAS) configured to be positioned within a wellbore formed in a subterranean zone of a hydrocarbon formation, a sampling system coupled to the QEPAS, and a computer system connected to the QEPAS. The sampling system is configured to be positioned in the wellbore and obtain a sample of a wellbore fluid at a downhole location in the subterranean zone. The QEPAS is configured to spectroscopically scan the sample and to determine a plurality of quantities of a corresponding plurality of hydrocarbons in the same. The computer system includes one or more processors to perform operations including receiving the plurality of quantities of the plurality of hydrocarbons in the sample and determining a plurality of ratios, where each ratio is a ratio of one of the plurality of hydrocarbons with another of the plurality of hydrocarbons.

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