OPTIMAL SURFACTANT DESIGN FOR RECOVERED HYDROCARBON ENHANCEMENT
    21.
    发明申请
    OPTIMAL SURFACTANT DESIGN FOR RECOVERED HYDROCARBON ENHANCEMENT 有权
    用于恢复油气增强的最佳表面活性剂设计

    公开(公告)号:US20160341037A1

    公开(公告)日:2016-11-24

    申请号:US14889091

    申请日:2014-12-31

    Abstract: Methods including the step of producing a bulk fluid from a subterranean formation, the bulk fluid comprising at least water and a hydrocarbon. The bulk fluid is then sampled to form at least one sampled fluid. Next, constituent parameters of the sampled fluid are determined using the hydrophilic-lipophilic deviation (HLD) model. The constituent parameters include the salinity (S) of the sampled fluid, the salinity constant (b); the equivalent alkane carbon number for the hydrocarbon in the sampled fluid (EACN); T is temperature of the sampled fluid; the characteristic curvature for an ionic surfactant composition (cc) or for a nonionic surfactant composition (ccn); the surfactant temperature constant for the ionic surfactant composition (αT) or for a nonionic surfactant composition (cT). Also determining an optimal surfactant or optimal surfactant blend to achieve an oil-water separation morphological phase distribution of the sampled fluid.

    Abstract translation: 包括从地层生产大量流体的步骤的方法,所述大体积流体至少包含水和烃。 然后对本体流体进行采样以形成至少一个采样流体。 接下来,使用亲水亲油偏差(HLD)模型确定取样流体的组成参数。 成分参数包括取样液体的盐度(S),盐度常数(b); 采样液中烃类的等效烷烃碳数(EACN); T是采样流体的温度; 离子表面活性剂组合物(cc)或非离子表面活性剂组合物(ccn)的特征曲率; 离子表面活性剂组合物(αT)的表面活性剂温度常数或非离子表面活性剂组合物(cT)的表面活性剂温度常数。 还确定最佳表面活性剂或最佳表面活性剂混合物以实现取样流体的油 - 水分离形态相分布。

    Detection of pipe features with pressure pulses

    公开(公告)号:US12228640B2

    公开(公告)日:2025-02-18

    申请号:US18351044

    申请日:2023-07-12

    Abstract: A method comprises generating, via a pulse generator, a first pressure pulse in a fluid in a pipe and detecting, via a transducer, a first reflected pressure pulse based on the first pressure pulse, wherein the first pressure pulse is reflected by a pipe feature to generate the first reflected pressure pulse. The method comprises generating, with the pulse generator, a second pressure pulse at a later time relative to generating the first pressure pulse, wherein timing of generating of the second pressure pulse is such that the second pressure pulse is superposed with the first reflected pressure pulse such that an amplitude of the second pressure pulse is greater than an amplitude of the first pressure pulse. The method comprises detecting, via the transducer, a second reflected pressure pulse based on the second pressure pulse, and detecting a pipe feature based on the second reflected pressure pulse.

    DETECTION OF PIPE FEATURES WITH PRESSURE PULSES

    公开(公告)号:US20250020804A1

    公开(公告)日:2025-01-16

    申请号:US18351044

    申请日:2023-07-12

    Abstract: A method comprises generating, via a pulse generator, a first pressure pulse in a fluid in a pipe and detecting, via a transducer, a first reflected pressure pulse based on the first pressure pulse, wherein the first pressure pulse is reflected by a pipe feature to generate the first reflected pressure pulse. The method comprises generating, with the pulse generator, a second pressure pulse at a later time relative to generating the first pressure pulse, wherein timing of generating of the second pressure pulse is such that the second pressure pulse is superposed with the first reflected pressure pulse such that an amplitude of the second pressure pulse is greater than an amplitude of the first pressure pulse. The method comprises detecting, via the transducer, a second reflected pressure pulse based on the second pressure pulse, and detecting a pipe feature based on the second reflected pressure pulse.

    Method and system for stick-slip mitigation

    公开(公告)号:US10995605B2

    公开(公告)日:2021-05-04

    申请号:US16407345

    申请日:2019-05-09

    Abstract: A method and system for dampening a stick-slip vibration. The method may comprise determining at least one frequency of a stick-slip vibration; determining mechanical properties of the drilling system; producing a torque signal from a controller having at least a second order; controlling a rotational speed of a top drive from the torque signal produced by the controller; and damping stick-slip vibration of the drilling system. The system may further comprise a drill string and a bottom hole assembly may be connected to the drill string. A drill bit may be connected to the bottom hole assembly and an information handling system may be connected to the drilling system.

    Real-time control of drilling fluid properties using predictive models

    公开(公告)号:US10901377B2

    公开(公告)日:2021-01-26

    申请号:US15527652

    申请日:2014-12-31

    Abstract: A method for controlling drilling fluid properties, in some embodiments, comprises determining a predictive model for a fluid circulation system that routes drilling fluid downhole to a drill bit to remove debris from said drill bit; determining a cost function associated with the fluid circulation system; using the predictive model and the cost function to determine a set of input values for the predictive model; operating a controlled device according to at least some of the set of input values, said controlled device changes properties of the drilling fluid in the fluid circulation system; and obtaining measurements of the properties.

    Optimizing stimulation and fluid management operations

    公开(公告)号:US10253599B2

    公开(公告)日:2019-04-09

    申请号:US14917531

    申请日:2014-12-31

    Abstract: A system for optimizing a stimulation operation includes an interface to equipment and sensors for performing the stimulation operation. The interface supplies control signals to the equipment and obtains measurement signals from the sensors. The system further includes a short-term optimizer that derives a current job state based at least in part on the measurement signals, and that further adjusts the control signals to optimize a short-term cost function. The short-term cost function includes a difference between the current job state and a desired job state derived from optimized values of a set of decision variables. The system further includes a long-term optimizer module that determines the optimized values based on a long-term cost function, the long-term cost function accounting for at least a long-term reward and a final state cost.

    Optimizing Running Operations
    29.
    发明申请

    公开(公告)号:US20170218728A1

    公开(公告)日:2017-08-03

    申请号:US15328834

    申请日:2014-12-31

    Abstract: A system for optimizing a running operation includes an interface to equipment and sensors for performing the running operation. The interface supplies control signals to the equipment and obtains measurement signals from the sensors. The system further includes a short-term optimizer that derives a current job state based at least in part on the measurement signals, and that further adjusts the control signals to optimize a short-term cost function. The short-term cost function includes a difference between the current job state and a desired job state derived from optimized values of a set of decision variables. The system further includes a long-term optimizer module that determines the optimized values based on a long-term cost function, the long-term cost function accounting for at least a long-term reward and a final state cost.

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