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    LIFT APPARATUS FOR DRIVING A DOWNHOLE RECIPROCATING PUMP
    3.
    发明申请
    LIFT APPARATUS FOR DRIVING A DOWNHOLE RECIPROCATING PUMP 审中-公开

    公开(公告)号：US20170321526A1

    公开(公告)日：2017-11-09

    申请号：US15656252

    申请日：2017-07-21

    Applicant: I-JACK TECHNOLOGIES INCORPORATED

    Inventor： Dan McCarthy

    IPC: E21B43/12 ,  F04B1/32 ,  F04B9/107 ,  F04B49/06 ,  E21B47/00 ,  F04B41/02 ,  F04B47/00 ,  F04B49/22

    CPC classification number: E21B43/129 ,  E21B47/0007 ,  F04B1/12 ,  F04B1/295 ,  F04B1/324 ,  F04B9/107 ,  F04B41/02 ,  F04B47/00 ,  F04B47/04 ,  F04B47/08 ,  F04B49/065 ,  F04B49/22 ,  F04B49/225 ,  F04B2201/121 ,  F04B2203/091

    Abstract: A lift apparatus and method for driving a downhole reciprocating pump is disclosed. The apparatus includes a hydraulic cylinder having a piston and a hydraulic fluid port, the piston being coupled to a rod for driving the reciprocating pump, the piston being moveable between first and second ends of the cylinder in response to a flow of hydraulic fluid through the hydraulic fluid port. The apparatus also includes a variable displacement hydraulic pump coupled to receive a substantially constant rotational drive from a prime mover for operating the hydraulic pump, the hydraulic pump having an outlet and being responsive to a displacement control signal to draw hydraulic fluid from a reservoir and to produce a controlled flow of hydraulic fluid at the outlet. The apparatus also includes a hydraulic fluid line connected to deliver hydraulic fluid from the outlet of the hydraulic pump through the hydraulic fluid port to the cylinder for causing the piston to move through an upstroke away from the first end and toward the second end of the cylinder. The apparatus further includes a valve connected between the hydraulic fluid port and the reservoir, the valve being responsive to a valve control signal for controlling discharge of hydraulic fluid from the hydraulic fluid port of the cylinder back to the reservoir to facilitate movement of the piston through a downstroke away from the second end toward the first end of the cylinder. The valve is operable to prevent flow of hydraulic fluid through the valve during the upstroke and the hydraulic pump is operable to prevent flow of hydraulic fluid back into the outlet of the hydraulic pump during the downstroke.

    METHOD AND SYSTEM FOR OPTIMIZING DOWNHOLE FLUID PRODUCTION
    6.
    发明申请
    METHOD AND SYSTEM FOR OPTIMIZING DOWNHOLE FLUID PRODUCTION 有权
    优化流化床生产的方法和系统

    公开(公告)号：US20130151216A1

    公开(公告)日：2013-06-13

    申请号：US13757622

    申请日：2013-02-01

    Applicant: Pumpwell Solutions Ltd.

    Inventor： Krzysztof Palka ,  Jaroslaw A. Czyz

    IPC: G06F17/50

    CPC classification number: G06F17/5018 ,  E21B43/127 ,  F04B47/02 ,  F04B47/022 ,  F04B49/065 ,  F04B2201/0202 ,  F04B2201/0206 ,  F04B2201/121 ,  F04B2203/0209 ,  F04B2205/04 ,  G05B13/041

    Abstract: A method and system for pumping unit with an elastic rod system is applied to maximize fluid production. The maximum stroke of the pump and the shortest cycle time are calculated based on all static and dynamic properties of downhole and surface components without a limitation to angular speed of the prime mover. Limitations of structural and fatigue strength are incorporated into the optimization calculation to ensure safe operation while maximizing pumped volume and minimizing energy consumption. Calculated optimal prime mover speed is applied to the sucker rod pump by means of beam pumping, long stroke or hydraulic pumping unit by controlling velocity, acceleration and torque of the electric prime mover or by controlling pressure and flow rate in hydraulically actuated sucker rod pumping system.

    Abstract translation: 应用一种用弹性杆系统进行泵送单元的方法和系统，以最大化流体生产。 泵的最大行程和最短的循环时间是基于井下和表面部件的所有静态和动态特性而不受原动机角速度限制的。 结构和疲劳强度的限制被纳入优化计算，以确保安全运行，同时最大限度地提高抽水量并最大限度地降低能耗。 通过控制电动泵的速度，加速度和扭矩或通过控制液压驱动抽油杆泵送系统中的压力和流量，通过波束泵送，长行程或液压泵送单元，计算出最佳原动机速度应用于抽油杆泵 。

    Fluid Load Line Calculation and Concavity Test for Downhole Pump Card
    7.
    发明申请
    Fluid Load Line Calculation and Concavity Test for Downhole Pump Card 有权
    井下泵卡的流体载重线计算和凹凸试验

    公开(公告)号：US20130108472A1

    公开(公告)日：2013-05-02

    申请号：US13663161

    申请日：2012-10-29

    Applicant: Victoria M. Pons

    Inventor： Victoria M. Pons

    IPC: E21B43/00 ,  E21B43/12

    CPC classification number: F04B49/065 ,  E21B43/127 ,  E21B47/0008 ,  E21B2043/125 ,  F04B47/022 ,  F04B49/20 ,  F04B51/00 ,  F04B2201/121 ,  F04B2201/1211 ,  G05B13/042

    Abstract: A pump apparatus has a downhole pump disposed in a wellbore and has motor at a surface of the wellbore, and the downhole pump is reciprocated in the wellbore by a rod string operatively moved by the motor. A card indicative of load and position of the downhole pump is generated using surface measurements and a wave equation model having a damping factor or two damping factors. Actual fluid load lines are determined from the downhole card for upstroke and downstroke of the downhole pump, and calculated fluid load lines from the load distribution of the downhole data. The actual fluid load lines are compared to the calculated fluid load lines so that at least one parameter of the pump apparatus can be modified based on the comparison. For example, the damping of the wave equation model can be adjusted so that another downhole card can be generated.

    Abstract translation: 泵装置具有设置在井眼中的井下泵，并且在井眼的表面具有马达，并且井下泵通过由马达可操作地移动的杆串在井眼中往复运动。 使用表面测量和具有阻尼因子或两个阻尼因子的波动方程模型来产生指示井下泵的载荷和位置的卡。 实际的流体负荷线由井下卡的井下泵的上行和下行确定，以及从井下数据的负荷分布计算出的流体载荷线。 将实际流体负荷管线与计算的流体负荷管线进行比较，使得可以基于比较来修改泵装置的至少一个参数。 例如，可以调整波动方程模型的阻尼，从而可以产生另一个井下卡。

    Calculating Downhole Cards in Deviated Wells
    8.
    发明申请
    Calculating Downhole Cards in Deviated Wells 有权
    计算偏心井下的井下卡

    公开(公告)号：US20130104645A1

    公开(公告)日：2013-05-02

    申请号：US13663155

    申请日：2012-10-29

    Applicant: Victoria M. Pons

    Inventor： Victoria M. Pons

    IPC: F04B51/00

    CPC classification number: F04B49/065 ,  E21B43/127 ,  E21B47/0008 ,  E21B2043/125 ,  F04B47/022 ,  F04B49/20 ,  F04B51/00 ,  F04B2201/121 ,  F04B2201/1211 ,  G05B13/042

    Abstract: Diagnosing a pump apparatus having a downhole pump disposed in a deviated wellbore characterizes axial and transverse displacement of a rod string with two coupled non-linear differential equations of fourth order, which include axial and transverse equations of motion. To solve the equations, derivatives are replaced with finite difference analogs. Initial axial displacement of the rod string is calculated by assuming there is no transverse displacement and solving the axial equation. Initial axial force is calculated using the initial axial displacement and assuming there is no transverse displacement. Initial transverse displacement is calculated using the initial axial force and the initial axial displacement. Axial force and friction force are calculated using the initial displacements, and the axial displacement at the downhole pump is calculated by solving the axial equation with the axial force and the friction force. Load at the downhole pump is calculated so a downhole card can be generated.

    Abstract translation: 诊断具有设置在偏斜井筒中的井下泵的泵装置表征具有四次的两个耦合非线性微分方程的杆串的轴向和横向位移，其包括轴向和横向运动方程。 为了求解方程，导数被有限差分类似物代替。 通过假设没有横向位移并求解轴向方程来计算杆柱的初始轴向位移。 使用初始轴向位移计算初始轴向力，假设没有横向位移。 使用初始轴向力和初始轴向位移计算初始横向位移。 使用初始位移计算轴向力和摩擦力，并通过轴向力和摩擦力求解轴向方程来计算井下泵的轴向位移。 计算井下泵的负载，因此可以产生井下卡。

    SYSTEM AND METHOD FOR EVALUATING RECIPROCATING DOWNHOLE PUMP DATA USING POLAR COORDINATE ANALYTICS
    10.
    发明公开
    SYSTEM AND METHOD FOR EVALUATING RECIPROCATING DOWNHOLE PUMP DATA USING POLAR COORDINATE ANALYTICS 审中-公开

    公开(公告)号：US20230184068A1

    公开(公告)日：2023-06-15

    申请号：US18105992

    申请日：2023-02-06

    Applicant: Ravdos Holdings Inc.

    Inventor： Victoria Pons

    IPC: E21B43/12 ,  E21B47/009 ,  F04B49/06 ,  F04B51/00

    CPC classification number: E21B43/127 ,  E21B47/009 ,  F04B49/065 ,  F04B51/00 ,  F04B47/022 ,  F04B2201/06 ,  F04B2201/121

    Abstract: A method for evaluating data from a reciprocating downhole pump includes the steps of acquiring downhole position and load data, providing the position and load data to a processing unit, normalizing the position and load data, converting the position and load data to a calculated polar coordinate data set, evaluating the calculated polar coordinate data set to determine a condition or occurrence at the reciprocating pump, and outputting calculated key parameters for controlling and optimizing the reciprocating pump and beam pumping unit. The method further comprises a step of creating a library of reference data sets, comparing the calculated polar data set against the library of ideal and reference data sets, identifying one or more reference data sets that match one or more portions of the calculated polar data set, and outputting the probability of one or more of the known conditions within the calculated polar data set.

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