The present invention provides a method and apparatus for determination of the quality of a formation fluid sample including monitoring permeability and mobililty versus time to determine a filtrate contamination level, single phase state without gas and solids in the formation fluid, as it existed in...http://www.google.es/patents/US7234521?utm_source=gb-gplus-sharePatente US7234521 - Method and apparatus for pumping quality control through formation rate analysis techniques
Method and apparatus for pumping quality control through formation rate ...
