DETERMINING FLUID COMPRESSIBILITY WHILE DELIVERING FLUID

摘要

A method for determining compressibility of a fluid is described. The method comprises starting at a first value of pressure and compressing a first volume of the fluid to a first compressed volume at a second value of pressure, starting at the first value of pressure and compressing a second volume of the fluid to a second compressed volume at the second value of pressure, determining a first volumetric difference corresponding to a difference between the second volume and the first volume, determining a second volumetric difference corresponding to a difference between the second compressed volume and the first compressed volume, and determining a value of compressibility of the fluid from a ratio derived from the second volumetric difference and the first volumetric difference.