Patent ID: 8990020
Filing Date: 2015-03-24
Classification: E21B,G01N,G01V

Abstract:
1. A method for obtaining fluid density values for a fluid between first and second stations in a borehole comprising: deploying a downhole tool at the first station; moving the downhole tool from the first station to the second station; measuring a plurality of fluid density values of the fluid within the borehole between the first and second stations using a fluid density measurement device in the downhole tool, wherein the plurality of fluid density values represent a continuous log of fluid densities between the first and second stations; obtaining first and second fluid pressure values of the first and second stations, respectively; calculating a gravity value based on a depth of the first and second stations; calculating a vertical distance between the first and second stations based on the first and second fluid pressure values, the calculated gravity value, and the plurality of fluid density values; and calculating an average fluid density for the fluid between the first and second stations using the plurality of fluid density values, if the vertical distance between the first and second stations indicates that the fluid is non-homogenous.