Patent ID: 6755079
Filing Date: 2004-06-29
Classification: E21B,G01N

Abstract:
A tool for processing a reservoir fluid in a subterranean well bore penetrating a reservoir, the tool comprising:(a) a housing suitable for insertion into the well bore, the housing defining a passage therethrough for providing fluid communication with the reservoir fluid, said passage having an entry region, an intermediate region, and an exit region, wherein for a fluid of a given viscosity at a given Reynolds number, the entry region has an entry region geometry that defines an entry region flow velocity, and the intermediate region has an intermediate region geometry that defines an intermediate region flow velocity, wherein the intermediate region flow velocity is not equal to the entry region flow velocity; (b) a pressure sensor for measuring a differential pressure across at least the intermediate region; and wherein a displaceable element is positioned in the passage, and the element is biased by a biasing device against force exerted on the element by fluid flow through the passage.