Patent ID: 9732598
Date: 2017-08-15
CPC Classifications: E21B,F04B

Claim:
1. A downhole electromagnetic pump, comprising: a pumping chamber having a throughbore through which fluid may be pumped; and an electrode arrangement to produce an electro-hydro-dynamic force on fluid within the pump such that fluid may be pumped through the pump in a desired direction, wherein said pumping chamber comprises a main root portion and a plurality of ancillary root portions radially extending from said main root portion and said throughbore; wherein the ancillary root portions are actuable between a stowed configuration and a deployed configuration; wherein the ancillary root portions are helically coiled in the stowed configuration, and wherein each ancillary portion extends to a different length into a downhole environment from the main root portion in the deployed configuration; and wherein each of the ancillary root portions are provided with a plurality of electromagnetic pump-in magnets, and wherein each of the ancillary root portions automatically locate into a respective location in the downhole environment by a corresponding electromagnetic pump-in magnets in the deployed configuration.