Patent ID: 7164267
Filing Date: 2007-01-16
Classification: G01R,G01V

Abstract:
1. An apparatus for analyzing downhole formation fluids in a borehole environment, comprising: (a) a conduit for introducing formation fluids into the apparatus and for providing flow-through passage, the conduit having an inlet end and an outlet end; (b) at least one magnet assembly enclosing the conduit for generating in the conduit a substantially uniform static magnetic field with a defined magnetic field direction; (c) at least one transmitting antenna operative to generate pulsed magnetic fields in at least one first portion of the conduit in a direction substantially perpendicular to the static field direction for exciting nuclei of fluids contained in the conduit; and (d) at least one receiving antenna operative to receive NMR signals from fluids in a second portion of the conduit, wherein the second portion is shorter than the at least one first portion, so that received NMR signals correspond only to a portion of the excited nuclei.