METHOD AND APPARATUS FOR SPECIATING HYDROCARBONS
    44.
    发明申请
    METHOD AND APPARATUS FOR SPECIATING HYDROCARBONS 审中-公开
    用于表征油气的方法和装置

    公开(公告)号:US20150160127A1

    公开(公告)日:2015-06-11

    申请号:US14624905

    申请日:2015-02-18

    Abstract: A method for analyzing a gas sample conveyed in a drilling fluid involves liberating the gas sample from the drilling fluid, irradiating the gas sample with infrared radiation spanning a wavelength range in the near-infrared range, detecting absorption spectra associated with irradiating the gas sample, and determining a composition of the gas sample from the absorption spectra. The gas sample includes one or more of methane, ethane, propane, and butane, the detected absorption spectra are associated with irradiating each of the one or more of methane, ethane, propane, and butane, and the composition includes a concentration of any one or more of the methane, ethane, propane, and butane.

    Abstract translation: 用于分析在钻井液中输送的气体样品的方法包括从钻井液中释放气体样品,用在近红外范围的波长范围内的红外辐射照射气体样品,检测与照射气体样品相关的吸收光谱, 以及从吸收光谱确定气体样品的组成。 气体样品包括甲烷,乙烷,丙烷和丁烷中的一种或多种,​​所检测的吸收光谱与辐射甲烷,乙烷,丙烷和丁烷中的一种或多种的相关联,并且组合物包括任何一种 或更多的甲烷,乙烷,丙烷和丁烷。

    Combustible gas measurement apparatus and method
    45.
    发明申请
    Combustible gas measurement apparatus and method 有权
    可燃气体测量装置及方法

    公开(公告)号:US20020194936A1

    公开(公告)日:2002-12-26

    申请号:US09849281

    申请日:2001-05-07

    CPC classification number: G01N33/0018 Y10T137/0335

    Abstract: Discloses a system for the analysis and measurement of selected gases such as combustible gases contained in a gaseous sample to be analysed including a mixing manifold arrangement to mix the sample gas with a diluting gas to provide a constant gas output flow rate to a detector system. The mixing manifold arrangement automatically reconfigures itself to provide an optimal concentration ratio of sample and diluting mixed gas to the detector system. A constant sample gas input rate is preferred. Excess sample gas not required to maintain a constant mixed sample output rate is discharged.

    Abstract translation: 公开了用于分析和测量所选择的气体的系统,例如待分析的气态样品中包含的可燃气体,包括混合歧管装置,以将样品气体与稀释气体混合,以向检测器系统提供恒定的气体输出流量。 混合歧管装置自动重新配置,以提供样品和稀释混合气体与检测器系统的最佳浓度比。 优选恒定的样品气体输入速率。 排出不需要维持恒定的混合样品输出速率的多余样品气体。

    METHODS, SYSTEMS, AND COMPUTER-READABLE MEDIA FOR PERFORMING AUTOMATED DRILLING OF A WELLBORE

    公开(公告)号:US20240159138A1

    公开(公告)日:2024-05-16

    申请号:US18420244

    申请日:2024-01-23

    CPC classification number: E21B44/06 E21B21/08 E21B47/06

    Abstract: There is described a computer-implemented method of controlling a drilling operation. In particular, there is described a computer-implemented method of determining that a differential pressure is in an oscillating state. In response to determining that the differential pressure is in the oscillating state, a weight on bit setpoint is decreased so as to decrease the differential pressure. There is also described a computer-implemented method of determining a difference between a differential pressure and a target differential pressure. The target differential pressure is less than a differential pressure limit. A weight on bit setpoint is adjusted as a function of the difference between the differential pressure and the target differential pressure so as to adjust the differential pressure and thereby reduce the difference between the differential pressure and the target differential pressure.

    Method, system, and medium for controlling rate of a penetration of a drill bit

    公开(公告)号:US11454103B2

    公开(公告)日:2022-09-27

    申请号:US16156143

    申请日:2018-10-10

    Abstract: Methods, systems, and techniques for controlling the rate of penetration of a drill bit are described. In particular, an operate control loop is evaluated by: determining a travelling block acceleration of a travelling block; determining an acceleration error measurement between the travelling block acceleration and a target travelling block acceleration; determining, based on the acceleration error measurement, a brake control signal; and using the brake control signal to control a braking mechanism configured to apply a variable braking force to the travelling block.

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