公开(公告)号：US20180128088A1

公开(公告)日：2018-05-10

申请号：US15569698

申请日：2015-04-27

Applicant: STATOIL PETROLEUM AS

Inventor： Alexey PAVLOV ,  Kjetil FJALESTAD

IPC: E21B43/12 ,  E21B43/16 ,  E21B44/06 ,  E21B47/00 ,  F04D15/02

CPC classification number: E21B43/128 ,  E21B43/12 ,  E21B43/16 ,  E21B44/06 ,  E21B47/0007 ,  F04D15/0209 ,  F04D15/0245

Abstract: The present invention provides a method for inverting oil continuous flow to water continuous flow and reaching one or more desired production parameters in a well producing fluid containing oil and water or inverting oil continuous flow to water continuous flow and reaching one or more desired transport parameters in a pipeline transporting fluid containing oil and water wherein there is a pump in the well or transport pipeline, comprising the following steps: (a) reducing the pump frequency until either inversion from oil continuous production to water continuous flow is achieved or a predefined stopping condition is reached; (b) if inversion has not been achieved in step (a), adjusting the wellhead pressure in the well or the pressure at the reception side of the transport line to achieve the inversion; (c) stabilising the flow at the condition reached in steps (a) or (b); and (d) carefully adjusting one or both of the wellhead pressure and pump frequency to reach the one or more desired production parameters.

公开(公告)号：US20160290077A1

公开(公告)日：2016-10-06

申请号：US15036599

申请日：2013-11-14

Applicant: STATOIL PETROLEUM AS

Inventor： Elvira Marie Bergheim ASKE ,  Morten FREDRIKSEN ,  Alexey PAVLOV ,  Kjetil FJALESTAD ,  Dinesh KRISHNAMOORTHY ,  Petter TØNDEL ,  Yilmaz TÜRKYILMAZ

IPC: E21B21/08 ,  G05B15/02 ,  E21B47/10 ,  E21B34/06 ,  E21B43/12 ,  E21B47/06

CPC classification number: E21B21/08 ,  E21B34/06 ,  E21B43/128 ,  E21B47/06 ,  E21B47/065 ,  G05B15/02

Abstract: A method for operating an electrical submersible pump, ESP, lifted well, the method comprising: measuring a characteristic of the well or a characteristic of a device associated with the well; generating a first control signal for instructing a change in the operation of the ESP; generating a second control signal for instructing a change in the operation of a further device associated with the well; wherein a degree of change in each of the first and second control signals is dependent on the outcome of the measuring and on a known effect caused by sending at least one of said first control signal to the ESP or said second control signal to the further device associated with the well; and sending the first control signal to the ESP and the second control signal to the further device associated with the well.

Abstract translation: 一种用于操作电潜泵ESP的方法，该方法包括：测量井的特性或与井有关的装置的特性; 产生用于指示ESP的操作改变的第一控制信号; 产生用于指示与所述井相关联的另一设备的操作改变的第二控制信号; 其中所述第一和第二控制信号中的每一个的变化程度取决于所述测量的结果以及由将所述第一控制信号中的至少一个发送到所述ESP或所述第二控制信号至所述另一设备而引起的已知效应 与井有关; 以及将所述第一控制信号发送到所述ESP并且将所述第二控制信号发送到与所述井相关联的所述另外的设备。

公开(公告)号：US20190063193A1

公开(公告)日：2019-02-28

申请号：US15769997

申请日：2015-10-22

Applicant: STATOIL PETROLEUM AS

Inventor： Alexey PAVLOV ,  Kjetil FJALESTAD

IPC: E21B41/00 ,  E21B43/12 ,  E21B47/00 ,  E21B43/25

Abstract: A system for optimising injection of a diluent to one, some or all of one or more wells comprising a downhole pump and holding means for the diluent, said holding means being connected to the or each well via one or more injection lines through which the diluent may be pumped by diluent injection means, characterised in that said system comprises measurement means for real time measurement of one or more production performance parameters, and measurement of the rate of injection of the diluent; and means for optimising the injection of the diluent to at least one of said one or more wells on the basis of: (i) means for making controlled variations of the diluent injection into the at least or each well; (ii) means for the processing of the real time measurements of the production performance parameters affected by these variations to determine any necessary adjustment of the injection of the diluent towards an optimal value; and (iii) if required, making the corresponding physical adjustment of the injection of the diluent in order to bring production performance closer to the optimal point, as well as a method for said optimisation.