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

    公开(公告)号:US20230021387A1

    公开(公告)日:2023-01-26

    申请号:US17957568

    申请日:2022-09-30

    IPC分类号: E21B44/06 E21B21/08

    摘要: 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.

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

    公开(公告)号:US11499411B2

    公开(公告)日:2022-11-15

    申请号:US17129395

    申请日:2020-12-21

    IPC分类号: E21B44/06 E21B21/08 E21B47/06

    摘要: 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 AND SYSTEM FOR PERFORMING AUTOMATED DRILLING OF A WELLBORE

    公开(公告)号:US20190153848A1

    公开(公告)日:2019-05-23

    申请号:US16251402

    申请日:2019-01-18

    IPC分类号: E21B44/02 E21B45/00

    CPC分类号: E21B44/02 E21B45/00

    摘要: 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.

    Systems and methods for pressure differential molecular spectroscopy of compressible fluids
    9.
    发明授权
    Systems and methods for pressure differential molecular spectroscopy of compressible fluids 有权
    可压缩流体的压力差分谱法的系统和方法

    公开(公告)号:US09488570B2

    公开(公告)日:2016-11-08

    申请号:US14511842

    申请日:2014-10-10

    发明人: Vidi A. Saptari

    摘要: Described herein is a spectroscopic system and method for measuring and monitoring the chemical composition and/or impurity content of a sample or sample stream using absorption light spectroscopy. Specifically, in certain embodiments, this invention relates to the use of sample pressure variation to alter the magnitude of the absorption spectrum (e.g., wavelength-dependent signal) received for the sample, thereby obviating the need for a reference or ‘zero’ sample. Rather than use a reference or ‘zero’ sample, embodiments described herein obtain a spectrum/signal from a sample-containing cell at both a first pressure and a second (different) pressure.

    摘要翻译: 本文描述的是使用吸收光谱测量和监测样品或样品流的化学成分和/或杂质含量的光谱系统和方法。 具体来说,在某些实施方案中,本发明涉及使用样品压力变化来改变为样品接收的吸收光谱的幅度(例如,依赖于波长的信号),从而避免了对参考或“零”样品的需要。 不是使用参考或“零”样本,本文所述的实施例在第一压力和第二(不同)压力下都从含样品的电池获得光谱/信号。