Method and system for performing automated drilling of a wellbore

    公开(公告)号:US10202837B2

    公开(公告)日:2019-02-12

    申请号:US15829347

    申请日:2017-12-01

    Abstract: Methods, systems, and techniques for performing automated drilling of a wellbore. The wellbore is drilled in response to a first drilling parameter target (such as weight on bit) that includes a first drilling parameter offset modified by a first drilling parameter perturbation signal. A first drilling performance metric (such as rate of penetration) is measured and is indicative of a response of the drilling to the first drilling parameter target. An output of a first objective function is determined using the measured first drilling performance metric. A first correlation between the output of the first objective function and the first drilling parameter perturbation signal, and an integral of the first correlation, are determined. The first drilling parameter target is updated using the integral modified by the first drilling parameter perturbation signal. The wellbore is drilled in response to the updated first drilling parameter target.

    METHOD AND APPARATUS FOR SPECIATING HYDROCARBONS
    23.
    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:US20110313670A1

    公开(公告)日:2011-12-22

    申请号:US12917129

    申请日:2010-11-01

    Abstract: Described herein are a method and apparatus for analyzing a gas sample that is conveyed in a drilling fluid, and a method and apparatus for liberating gases from drilling fluid. The gas sample contains one or more of methane, ethane, propane, and butane; optionally, the gas sample may also contain pentane. The gas sample is first liberated from the drilling fluid, following which it is irradiated with infrared radiation in the near-infrared range. Absorption spectra resulting from absorption of the infrared radiation by the one or more of methane, ethane, propane and butane is simultaneously detected. From the absorption spectra, the composition of the gas sample can be determined. The composition includes a concentration of any one or more of the methane, ethane, propane and butane. Linearity of absorption is increased by using relatively short wavelength infrared radiation centred on, for example, about 1.70 μm, which can increase the accuracy of and reduce the computational intensity of the calculations utilized to determine the composition of the gas sample. Within the near-infrared range, radiation having a wavelength from about 1.55 μm to 1.85 μm can be used. Gases can be liberated from the drilling fluid using a gas trap. The gas trap can be powered using a brushless DC motor, and alternatively or additionally drilling fluid from a sample enclosure of the gas trap can exit via a bubbler enclosure of the gas trap. The brushless DC motor is a relatively efficiency and compact motor that can be used with the gas trap, and is advantageous over convention AC induction and air motor motors. Having drilling fluid exit the sample enclosure through the bubbler enclosure is advantageous in that it helps to make the footprint of the gas trap relatively small.

    Abstract translation: 这里描述了一种用于分析在钻井液中输送的气体样品的方法和装置,以及用于从钻井液中释放气体的方法和装置。 气体样品含有一种或多种甲烷,乙烷,丙烷和丁烷; 任选地,气体样品还可以含有戊烷。 气体样品首先从钻井液中释放出来,随后用近红外范围的红外辐射照射。 同时检测由甲烷,乙烷,丙烷和丁烷中的一种或多种吸收红外辐射产生的吸收光谱。 从吸收光谱可以确定气体样品的组成。 组合物包括甲烷,乙烷,丙烷和丁烷中的任何一种或多种的浓度。 通过使用以例如约1.70μm为中心的相对短波长的红外辐射来增加吸收的线性度,这可以增加用于确定气体样品的组成的计算的精度并降低计算强度。 在近红外范围内,可以使用具有约1.55μm至1.85μm波长的辐射。 气体可以使用气阱从钻井液中释放出来。 气阱可以使用无刷直流电动机供电,或者另外或另外从气阱的样品箱中钻出的流体可以通过气阱的起泡器外壳排出。 无刷直流电动机是一种比较有效率和紧凑的电动机,可以与气体捕集器一起使用,并且比常规的交流感应和气动马达电机更有优势。 使钻井液通过起泡器外壳离开样品外壳是有利的,因为它有助于使气阱的占地面积相对较小。

    Methods, systems, and computer-readable media for performing automated drilling of a wellbore

    公开(公告)号:US11905815B2

    公开(公告)日:2024-02-20

    申请号:US17957568

    申请日:2022-09-30

    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.

    DETECTING A MUD MOTOR STALL
    28.
    发明申请

    公开(公告)号:US20210270097A1

    公开(公告)日:2021-09-02

    申请号:US16826553

    申请日:2020-03-23

    Abstract: There is described an automated method of detecting a mud motor stall. During a drilling operation, a potential mud motor stall is determined to have occurred, based on drilling parameter data. In response thereto, potential mud motor stall data obtained from the drilling parameter data is compared to stored mud motor stall data associated with mud motor stalls. Based on the comparison, the potential mud motor stall may be confirmed or not confirmed as a mud motor stall.

    Method and apparatus for correcting data points acquired during well drilling
    29.
    发明授权
    Method and apparatus for correcting data points acquired during well drilling 有权
    用于校正钻井过程中获取的数据点的方法和装置

    公开(公告)号:US09062524B2

    公开(公告)日:2015-06-23

    申请号:US13015148

    申请日:2011-01-27

    CPC classification number: E21B44/00

    Abstract: Described herein are a method, apparatus and computer readable medium for correcting data points acquired during well drilling. The data points are typically stored in a text file that is accessible by a processor. The processor applies one or more tags to the data points, with each of the tags corresponding to a characteristic of the data points. The processor then identifies one or more data faults in the data points using the one or more tags. Each data fault is indicative of inaccurate data in the data points; i.e., data that does not accurately represent the well as drilled. Following identification of the one or more data faults, the processor corrects one or more of the data faults. The resulting corrected, or cleaned, data is more indicative of the well as actually drilled than the uncorrected data. The processor can be connected to a computer readable medium that stores the statements and instructions that the processor executes.

    Abstract translation: 这里描述了一种用于校正在钻井期间获取的数据点的方法,装置和计算机可读介质。 数据点通常存储在可由处理器访问的文本文件中。 处理器将一个或多个标签应用于数据点,每个标签对应于数据点的特征。 然后,处理器使用一个或多个标签来识别数据点中的一个或多个数据故障。 每个数据故障表示数据点中不准确的数据; 即,不准确地表示钻孔的数据。 在识别一个或多个数据故障之后,处理器校正一个或多个数据故障。 所得到的校正或清除的数据更多地表示与未校正的数据相比实际钻探的井。 处理器可以连接到存储处理器执行的语句和指令的计算机可读介质。

    Method, system and computer-readable medium for providing a user interface for predicting the physical attributes of a proposed well
    30.
    发明授权
    Method, system and computer-readable medium for providing a user interface for predicting the physical attributes of a proposed well 有权
    方法,系统和计算机可读介质,用于提供用于预测所提出的井的物理属性的用户界面

    公开(公告)号:US08907951B2

    公开(公告)日:2014-12-09

    申请号:US13015124

    申请日:2011-01-27

    CPC classification number: G06T11/20

    Abstract: A user interface for predicting the physical attributes of a proposed well by displaying an offset formation top graph for at least one offset well and a proposed formation top graph for the proposed well; mapping one or more portions of the offset formation top graph to one or more portions of the proposed formation top graph; normalizing physical attribute data associated with each mapped portion of the offset formation top graph to the associated mapped portion of the proposed formation top graph; displaying a normalized physical attribute graph of the normalized physical attribute data associated with each mapped portion of the offset formation top graph; selecting one or more portions of the normalized physical attribute graph; and determining the physical attribute data for the proposed well as the selected portions of the normalized physical attribute graph.

    Abstract translation: 一种用户界面,用于通过显示至少一个偏移井的偏移形成上图和所提出的井的拟议地层图来预测所提出井的物理属性; 将偏移形成顶部图的一个或多个部分映射到所提出的地层顶部图的一个或多个部分; 将与偏移形成上图的每个映射部分相关联的物理属性数据归一化为所提出的形成顶部图的相关联的映射部分; 显示与偏移形成上图的每个映射部分相关联的归一化物理属性数据的归一化物理属性图; 选择归一化物理属性图的一个或多个部分; 以及将所提出的井的物理属性数据确定为归一化物理属性图的所选部分。

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