Abstract:
An apparatus (112) is provided for providing access to one or more axial proximity probes (111) for monitoring axial position of thrust collars of a pump shaft to enable improved adjustment of the axial proximity probes (111) by the pump operator. The apparatus (112) includes a plurality of side walls (112a) configured to surround one or more axial proximity probes (111) configured to measure axial position of one or more thrust collars in a pump bearing housing (110), at least one access window (114) formed through at least one side wall (112a) of the apparatus (112) configured to provide access to the one or more axial proximity probes (111) and at least one removable access plate (130) configured to cover the at least one access window (114).
Abstract:
A fluid transport system includes at least one flow control device and a multiphase pump configured to transport fluid. At least one pump sensing device is configured to measure at least one operating characteristic of the multiphase pump. A controller is programmed with a pump map including a correlation of the at least one operating characteristic of the multiphase pump with at least one operating characteristic of the fluid. The controller is configured to determine an estimated value of the at least one operating characteristic of the fluid based on the measured value of the at least one operating characteristic of the multiphase pump and the pump map. At least one regulating device coupled to at least one flow control device is modulated based on the estimated value of the at least one operating characteristic of the fluid.
Abstract:
A method, in some embodiments, comprises: obtaining a plurality of parameters from multiple electric submersible pump (ESP) systems, an ESP in each of said ESP systems meeting one or more predetermined health criteria; identifying one or more relationships between the parameters in said plurality of parameters; generating a model based on said identification; obtaining a second plurality of parameters from another ESP system; determining a predicted value using said model and the second plurality of parameters; comparing the predicted value and an actual value from said another ESP system to determine a difference; and displaying a health status of another ESP in said another ESP system on a display based on said difference.
Abstract:
The present invention provides a numerical affinity pump sensorless conversion signal processing technique, e.g. based upon processing the pump differential pressure, flow rate and power at pump maximum speed published by pump manufacturers, as well as the pump affinity law in order to obtain instant pump differential pressures and flow rate directly and numerically. The sensorless converter technique may be applied to any form of pump characteristics distributions simple or complicated, since there is no need to reconstruct and to solve any pump and system characteristics equations. As a result, the computation accuracy is significantly improved.
Abstract:
A method for monitoring operation of an electric submersible pump. The method includes receiving data signals indicating values for a plurality of parameters regarding operation of the electric submersible pumping system; establishing, for at least some of the plurality of parameters, an associated reference signal; and detecting a deviation of one of the parameters from the reference signal associated with that parameter. As a result of the deviation having a rate of change below a predetermined threshold, the method includes updating the value of the reference signal to reflect the deviation. As a result of the deviation having a rate of change above the predetermined threshold, the method includes detecting an event and generating an indication of the event. The indication of the event further depends on a type of the parameter and a direction of the deviation from the reference signal.
Abstract:
Die Erfindung betrifft ein Verfahren zum Erstellen eines Kennlinienfelds einer Fluidpumpe (13) eines druckabhängigen Fluidfördersystems (10) in einem Arbeitsbereich der Fluidpumpe (13). Das Fluidfördersystem (10) umfasst hierbei einen stromgesteuerten elektrischen Motor (11), der von einem Motorsteuergerät (12) mit einem Ansteuerstrom angesteuert wird. Die Fluidpumpe (13) wird von dem elektrischen Motor (11) angetrieben. Das Verfahren umfasst den Schritt des Einstellens des Ansteuerstroms auf einen vorbestimmten Wert, sowie den Schritte des Veränderns eines Durchflussvolumens des Fluidfördersystems (10), nach dem der Ansteuerstrom eingestellt ist. Des Weiteren wird eine einen Druck in dem Fluidfördersystem beschreibende Datenmenge in Abhängigkeit der Veränderung des Durchflussvolumens aufgenommen. Die Schritte des Einstellens, Veränderns und Aufnehmens werden für eine vorbestimmte Anzahl Wiederholungen und vorbestimmte Ansteuerströme wiederholt. Aus der aufgenommenen Datenmenge wird ein Kennlinienfeld erstellt. Die Erfindung betrifft darüber hinaus eine Verwendung eines limitierten Ventils, eine Verwendung eines Stufenventils und ein Steuergerät für ein Fluidfördersystem (10).
Abstract:
A data communications system and associated method of high speed data communication for transferring data over a three phase power system are provided. Transmission of information is performed using either sequential or simultaneous multiple frequency transmissions. The frequencies are transmitted such that a combination of either simultaneous multiple frequencies or a pattern of frequency transmissions represents the transmitted data. Digital signal processing including time and frequency domain techniques are used to decode the transmitted data.
Abstract:
A method for monitoring a pump. The method includes determining a measured power absorbed by the pump, generating a performance indicator by comparing the measured power to a reference power for the pump, populating a log of performance indicators, and comparing a performance indicator to prior performance indicators in the log to identify changes in the performance indicator as a function of time.
Abstract:
A bellows position monitoring arrangement to determine the axial position of a bellows assembly within the outer housing of a seal section or equalizer. The position can be correlated to an amount of motor oil being retained within the bellows assembly.
Abstract:
An electric submersible pump system can include a multiphase electric motor operatively coupled to a fluid pump; a multiphase power cable operatively coupled to the multiphase electric motor; and a controller that includes an input that receives measurements as to power supplied to the multiphase electric motor via the multiphase power cable and that processes the measurements to determine information germane to the operation of the electric submersible pump system.