会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Low volume variable rpm submersible well pump
    • 低容量可变转速潜水井泵
    • US4678404A
    • 1987-07-07
    • US822358
    • 1986-01-24
    • Jerzy A. LorettJoseph E. Vandevier
    • Jerzy A. LorettJoseph E. Vandevier
    • F04D15/00F04B49/06
    • F04D15/0066Y10S415/901
    • A low volume submersible pump assembly has features to stabilize the operation. The pump assembly includes a centrifugal pump driven by a submerged electrical motor. The centrifugal pump has an impeller configuration that is designed for high specific head, but potentially unstable operation. At the design speed, the pump potentially could deliver an indeterminate flow rate for a given head. Also, at the design speed, the design flow rate will yield a design head that is very close to the maximum head at zero flow. The pump has the characteristic of requiring a significant increase in torque to produce higher flow rates. To stabilize the potentially unstable pump, a variable speed drive varies the speed of the motor to maintain constant torque. Maintaining a constant torque allows a considerable variance in head with only a small variance in flow rate resulting.
    • 低体积潜水泵组件具有稳定操作的特征。 泵组件包括由浸没式电动机驱动的离心泵。 离心泵具有叶轮结构,其设计用于高特定头部,但是操作可能不稳定。 在设计速度下,泵可能为给定的头部提供不确定的流量。 另外,在设计速度下,设计流量将产生非常接近零流量最大头部的设计头。 该泵具有要求显着提高扭矩以产生较高流速的特性。 为了稳定潜在不稳定的泵,变速驱动器改变电机的速度以保持恒定的转矩。 保持恒定的扭矩允许在头部有相当大的变化,只有微小的流量差异导致。
    • 8. 发明授权
    • Downhole gas compressor
    • 井下气体压缩机
    • US07401655B2
    • 2008-07-22
    • US11180925
    • 2005-07-07
    • Joseph E. VandevierJohn L. Bearden
    • Joseph E. VandevierJohn L. Bearden
    • E21B43/00
    • E21B43/121E21B43/128E21B47/0007
    • A method for producing gas from a well with low pressure involves running a bottom hole pressure test to graph a P-Q curve. The operator computes a frictional pressure drop due to friction of the gas flowing through the production tubing to the surface. A packer is set above perforations in the well. A screw pump is selected that has a capacity equal to the sum of the frictional pressure drop plus a desired wellhead pressure. The screw pump has a flow rate capacity determined from the P-Q curve. The operator may vary the frequency of a downhole motor to achieve the desired wellhead pressure.
    • 从低压井生产气体的方法包括进行底孔压力试验以绘制P-Q曲线。 操作员计算由于流过生产管道的气体与表面的摩擦而产生的摩擦压降。 封隔器设置在井的穿孔之上。 选择螺杆泵,其具有等于摩擦压降加上所需井口压力之和的能力。 螺杆泵具有从P-Q曲线确定的流​​量容量。 操作人员可以改变井下电机的频率以达到所需的井口压力。
    • 9. 发明授权
    • Method and system for below motor well fluid separation and conditioning
    • 以下电机井液分离和调节方法及系统
    • US06691782B2
    • 2004-02-17
    • US10058659
    • 2002-01-28
    • Joseph E. Vandevier
    • Joseph E. Vandevier
    • E21B4338
    • E21B43/121E21B43/38
    • A method and system for downhole treatment and pumping of well fluids enhances the pumping of viscous fluids to the surface. The first step is to separate the oil and water from the well fluid and then channel the oil to a chamber that encloses the motor. The heat from the motor will increase the heat of the crude oil flowing past the motor, thereby lowering the viscosity of the crude oil. The water flows separately past the motor in another passageway, and remixes with the oil. After the oil and water recombine, the treated well fluid has a lower viscosity, and the fluid is then pumped to the surface more efficiently than without treating the oil.
    • 用于钻井液井下处理和泵送的方法和系统增强了将粘性流体泵送到地面。 第一步是将油和水与井液分离,然后将油引导到封闭马达的腔室。 来自马达的热量将增加流经马达的原油的热量,从而降低原油的粘度。 水在另一个通道中分开通过电机,并与油混合。 在油和水复合后,处理后的井液具有较低的粘度,然后将流体比不处理油更有效地泵送到地面。