公开(公告)号：US11859628B2

公开(公告)日：2024-01-02

申请号：US18030504

申请日：2021-10-08

申请人： AKER SOLUTIONS AS

发明人： Age Hofstad ,  Randhir Mohite ,  Sergio Walsh Goldvag ,  Pal Erik Tysvaer Soerensen ,  Tarje Olderheim ,  Dag Elvebakken ,  Bastiaen Van Der Rest ,  Einar Marius Haaverstad ,  Rune Pettersen

IPC分类号： F04D27/02 ,  F04D27/00

CPC分类号： F04D27/0223 ,  F04D27/001

摘要： A method for preventing damage to a multiphase pump includes measuring a differential pressure of a fluid across the pump and an axial position of a rotor of the pump over a time period, calculating a pressure fluctuation by measuring a difference between a maximum and a minimum value of the measured differential pressure over the time period, calculating a dynamic axial position by measuring a difference between a maximum and a minimum value of the measured axial position of the rotor over the time period, comparing the calculated pressure fluctuation with an expected pressure fluctuation value, comparing the calculated dynamic axial position with an expected dynamic axial position value, and selecting an operating condition of the pump based on the comparison of the calculated pressure fluctuation with the expected pressure fluctuation value and of the calculated dynamic axial position with the expected dynamic axial position value.

公开(公告)号：US11053944B2

公开(公告)日：2021-07-06

申请号：US15752771

申请日：2016-10-14

申请人： Aker Solutions AS

发明人： Dag Elvebakken ,  Tarjei Thorrud Larsen

IPC分类号： F04D13/06 ,  F04D13/08 ,  F04D25/06 ,  F04D29/10 ,  E21B41/00 ,  E21B33/035 ,  E21B43/01 ,  E21B43/12 ,  F16N17/00 ,  F04C13/00

摘要： The invention provides an autonomous subsea barrier fluid system for a subsea pressure booster, the subsea pressure booster comprising a process fluid compartment, a motor compartment and a rotor assembly extending from the motor compartment into the process fluid compartment with one or several shaft seals separating the process fluid from the barrier fluid in the motor compartment. The subsea barrier fluid system is distinguished in that it comprises: a subsea barrier fluid pump, a barrier fluid delivery line, arranged between the barrier fluid pump and the motor compartment, a pressure controlled regulator, operatively arranged to at least one of the barrier fluid delivery line and the subsea barrier fluid pump, a subsea barrier fluid storage, and a barrier fluid suction line arranged from the subsea barrier fluid storage to the subsea barrier fluid pump.