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公开(公告)号：US08746353B2
公开(公告)日：2014-06-10
申请号：US13270555
申请日：2011-10-11
申请人： Michael A. Forsberg , Ketankumar K. Sheth , Brown Lyle Wilson , Donn J. Brown , Dehao David Zhu
发明人： Michael A. Forsberg , Ketankumar K. Sheth , Brown Lyle Wilson , Donn J. Brown , Dehao David Zhu
IPC分类号： E21B43/00
CPC分类号： E21B43/128 , E21B47/0007 , F04D9/001 , F04D13/10 , F04D15/0066 , F04D15/0088 , F04D15/0209
摘要： Vibration of an electric submersible pump assembly is monitored to produce a vibration spectrum. The vibration spectrum is compared to a known vibration signature for a pump condition that precedes gas lock. The pump condition is at least one of an impeller rotating stall condition, a diffuser stall condition, a pre-surge condition, and percentage of free gas within the wellbore fluid. Operation of the pump is then adjusted in response to the similarity of the vibration spectrum to the vibration signature for the pump condition to prevent impending gas lock.
摘要翻译： 监测电潜泵组件的振动，产生振动谱。 将振动频谱与在气体锁定之前的泵状态的已知振动特征进行比较。 泵状态是叶轮旋转失速状态，扩散器失速状态，预喘振状况以及井筒流体内游离气体的百分比中的至少一种。 然后响应于泵状态的振动谱与振动特征的相似性来调节泵的操作，以防止即将发生的气体锁定。
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公开(公告)号：US20120027630A1
公开(公告)日：2012-02-02
申请号：US13270555
申请日：2011-10-11
申请人： Michael A. Forsberg , Ketankumar K. Sheth , Brown Lyle Wilson , Donn J. Brown , Dehao David Zhu
发明人： Michael A. Forsberg , Ketankumar K. Sheth , Brown Lyle Wilson , Donn J. Brown , Dehao David Zhu
IPC分类号： E21B47/008 , G01N29/02
CPC分类号： E21B43/128 , E21B47/0007 , F04D9/001 , F04D13/10 , F04D15/0066 , F04D15/0088 , F04D15/0209
摘要： Vibration of an electric submersible pump assembly is monitored to produce a vibration spectrum. The vibration spectrum is compared to a known vibration signature for a pump condition that precedes gas lock. The pump condition is at least one of an impeller rotating stall condition, a diffuser stall condition, a pre-surge condition, and percentage of free gas within the wellbore fluid. Operation of the pump is then adjusted in response to the similarity of the vibration spectrum to the vibration signature for the pump condition to prevent impending gas lock.
摘要翻译： 监测电潜泵组件的振动，产生振动谱。 将振动频谱与在气体锁定之前的泵状态的已知振动特征进行比较。 泵状态是叶轮旋转失速状态，扩散器失速状态，预喘振状况以及井筒流体内游离气体的百分比中的至少一种。 然后响应于泵状态的振动谱与振动特征的相似性来调节泵的操作，以防止即将发生的气体锁定。
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公开(公告)号：US20140079575A1
公开(公告)日：2014-03-20
申请号：US14020034
申请日：2013-09-06
申请人： Michael A. Forsberg
发明人： Michael A. Forsberg
IPC分类号： F04D29/041
CPC分类号： F04D29/041 , E21B43/128 , F04D13/10 , F04D29/0473 , H02K7/088
摘要： An electric submersible well pump assembly includes a rotary pump and an electrical motor. The motor has a motor housing filled with a dielectric lubricant. A stator formed of a stack of stator disks with a stator bore is stationarily mounted within the motor housing. A motor shaft extends through the bore. A rotor is mounted to the shaft for rotating the shaft and has a stack of rotor disks. Axially spaced-apart radial stabilizing portions along the rotor have outer peripheries that are greater in outer diameter than remaining portions of the rotor. The outer peripheries of the stabilizing portions rotate with the rotor and are closely spaced to the inner diameter of the stator to radially stabilize the shaft.
摘要翻译： 电潜泵井组件包括旋转泵和电动马达。 马达具有填充有介电润滑剂的马达壳体。 由具有定子孔的定子盘堆叠形成的定子被固定地安装在马达壳体内。 电机轴延伸穿过孔。 转子安装在轴上用于旋转轴并具有一堆转子盘。 沿着转子的轴向间隔开的径向稳定部分具有外直径比转子的其余部分更大的外周。 稳定部分的外周与转子一起旋转并且与定子的内径紧密地间隔开以使轴径向稳定。
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公开(公告)号：US20170098974A1
公开(公告)日：2017-04-06
申请号：US15281307
申请日：2016-09-30
IPC分类号： H02K5/167
CPC分类号： H02K5/1672 , H02K2207/03
摘要： Systems and methods for reducing vibration in an electric motor using rotor bearing assemblies that are positioned within a bore of the stator to support the motor's shaft and rotor sections so that they can rotate within the stator bore. Each rotor bearing assembly includes an outer bearing and an inner bearing sleeve that rotates within the bearing. The bearing is secured so that its rotation within the stator is inhibited, but it can move axially. Each end of the bearing sleeve has a conically tapered contact surface which contacts and secures the corresponding rotor section and centers the rotor section with respect to the axis of rotation of the bearing. The contact surfaces of the rotor sections may be chamfered at an angle complementary to the tapered contact surface of the bearing sleeve to distribute the contact pressure between them over a greater contact surface area.
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公开(公告)号：US08616863B2
公开(公告)日：2013-12-31
申请号：US13074865
申请日：2011-03-29
申请人： Michael A. Forsberg
发明人： Michael A. Forsberg
CPC分类号： F04D13/10 , F04D1/06 , F04D29/047 , F04D29/669
摘要： A submersible pumping system for use downhole, wherein the system includes a pump, a pump motor, a seal section, a shaft coupling the pump motor to the pump, and bearing assemblies for radially retaining the shaft in place that are offset with respect to an axis of the shaft. The offset bearing assemblies produce side loads in the shaft that reduce shaft vibration during use. The bearing assemblies can be a combination of symmetric and asymmetric assemblies set in an alternating pattern along the length of the shaft.
摘要翻译： 一种用于井下的潜水泵送系统，其中系统包括泵，泵马达，密封部分，将泵马达耦合到泵的轴以及用于将轴径向保持在适当位置的轴承组件，其相对于 轴的轴线。 偏置轴承组件在轴中产生侧向负载，从而在使用过程中减少轴的振动。 轴承组件可以是沿着轴的长度以交替图案设置的对称和非对称组件的组合。
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公开(公告)号：US20120251362A1
公开(公告)日：2012-10-04
申请号：US13074865
申请日：2011-03-29
申请人： Michael A. Forsberg
发明人： Michael A. Forsberg
CPC分类号： F04D13/10 , F04D1/06 , F04D29/047 , F04D29/669
摘要： A submersible pumping system for use downhole, wherein the system includes a pump, a pump motor, a seal section, a shaft coupling the pump motor to the pump, and bearing assemblies for radially retaining the shaft in place that are offset with respect to an axis of the shaft. The offset bearing assemblies produce side loads in the shaft that reduce shaft vibration during use. The bearing assemblies can be a combination of symmetric and asymmetric assemblies set in an alternating pattern along the length of the shaft.
摘要翻译： 一种用于井下的潜水泵送系统，其中系统包括泵，泵马达，密封部分，将泵马达耦合到泵的轴以及用于将轴径向保持在适当位置的轴承组件，其相对于 轴的轴线。 偏置轴承组件在轴中产生侧向负载，从而在使用过程中减少轴的振动。 轴承组件可以是沿着轴的长度以交替图案设置的对称和非对称组件的组合。
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公开(公告)号：US20100143160A1
公开(公告)日：2010-06-10
申请号：US12632883
申请日：2009-12-08
申请人： Michael A. Forsberg
发明人： Michael A. Forsberg
CPC分类号： F04D29/5806 , E21B43/128 , F04B47/06 , F04D13/08 , F04D13/086 , F04D29/586
摘要： An electrical submersible pump motor has motor oil flowing through external circulation tubes for cooling the motor. A substantial portion of the exterior of each tube is submerged in and exposed to wellbore fluid. Heat is transferred from the motor to the motor oil, and then circulated through the external circulation tubes to conduct heat to the wellbore fluid. Internal or external motor oil pumps may be used to propel the motor oil through the circulation tubes. Guards or baffles may be used to protect the circulation tubes and to influence the flow of production fluid over he circulation tubes.
摘要翻译： 电潜泵电动机具有流经外循环管的电动机油，用于冷却电动机。 每个管的外部的大部分被浸没并暴露于井筒流体。 热量从电动机转移到机油，然后通过外循环管循环，以将热量传导到井筒流体。 内部或外部电动机油泵可用于推动机油通过循环管。 可以使用护罩或挡板来保护循环管并影响循环管中的生产流体的流动。
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公开(公告)号：US09624938B2
公开(公告)日：2017-04-18
申请号：US14020034
申请日：2013-09-06
申请人： Michael A. Forsberg
发明人： Michael A. Forsberg
IPC分类号： H02K7/08 , F04D29/041 , F04D13/10 , F04D29/047 , E21B43/12
CPC分类号： F04D29/041 , E21B43/128 , F04D13/10 , F04D29/0473 , H02K7/088
摘要： An electric submersible well pump assembly includes a rotary pump and an electrical motor. The motor has a motor housing filled with a dielectric lubricant. A stator formed of a stack of stator disks with a stator bore is stationarily mounted within the motor housing. A motor shaft extends through the bore. A rotor is mounted to the shaft for rotating the shaft and has a stack of rotor disks. Axially spaced-apart radial stabilizing portions along the rotor have outer peripheries that are greater in outer diameter than remaining portions of the rotor. The outer peripheries of the stabilizing portions rotate with the rotor and are closely spaced to the inner diameter of the stator to radially stabilize the shaft.
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公开(公告)号：US10823177B2
公开(公告)日：2020-11-03
申请号：US15239721
申请日：2016-08-17
IPC分类号： E21B47/008 , E21B43/12 , F04D15/00 , E21B43/38 , F04D7/02 , F04D13/06 , F04D13/10 , F04D29/22 , F04D29/42 , F04D29/44 , F04D1/06
摘要： Systems and methods for distributed downhole sensing of operating parameters in an ESP utilizing MEMS sensors. In one embodiment, an ESP is installed in a well. The ESP has a pump, a gas separator, a seal section and a motor. Multiple MEMS sensors are positioned within one or more of the ESP components. Each of the MEMS sensors has a sensor component and on-board circuitry that are formed on a substrate. Each MEMS sensor's sensor component senses a corresponding operating parameter and provides sensed information to the on-board circuitry, which processes the received sensor signal as needed and provides the processed information at an output of the MEMS sensor. The outputs of the different MEMS sensors can be networked together, and the sensor information for the different operating parameters can be communicated to equipment at the surface of the well via a common electrical line.
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公开(公告)号：US10374481B2
公开(公告)日：2019-08-06
申请号：US15281307
申请日：2016-09-30
摘要： Systems and methods for reducing vibration in an electric motor using rotor bearing assemblies that are positioned within a bore of the stator to support the motor's shaft and rotor sections so that they can rotate within the stator bore. Each rotor bearing assembly includes an outer bearing and an inner bearing sleeve that rotates within the bearing. The bearing is secured so that its rotation within the stator is inhibited, but it can move axially. Each end of the bearing sleeve has a conically tapered contact surface which contacts and secures the corresponding rotor section and centers the rotor section with respect to the axis of rotation of the bearing. The contact surfaces of the rotor sections may be chamfered at an angle complementary to the tapered contact surface of the bearing sleeve to distribute the contact pressure between them over a greater contact surface area.
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