Patent ID: 6616837
Filing Date: 2003-09-09
Classification: H01F,Y10T

Abstract:
An apparatus for optimizing the rheological properties of a viscous fluid, comprising:a housing for connection in a flow path from a subsurface reservoir to the surface, the housing comprising first and second parts, each part having a through bore; the through bore of the first part having an inlet end for connection to a supply of a viscous fluid in a subsurface reservoir and an outlet end; a flow restriction device in the through bore of the first part of the housing defining a reduced area orifice for restricted flow; an adjustment device for varying the size of the orifice; and a plurality of magnetic elements in the through bore of the second part of the housing such that the flow of a viscous fluid from a sub surface reservoir to the surface is transverse to the magnetic field of the plurality of magnetic elements.