LPLT Filter Press Instruction Manual
207128
Revision G, September 2012
20
7
Test Analysis
7.1
References
API Recommended Practice for Field Testing Water Based Drilling Fluids,
API RP 13B-1
API Recommended Practice for Field Testing Oil Based Drilling Fluids, API
RP 13B-2
7.2
Results
The fundamental filtration measurements include the filtrate volume and filter cake
thickness.
The volume of liquid filtrate collected after 30 minutes is reported in milliliters
(ml), to the nearest 0.1 ml.
For a 7 ½ minute test, multiply the filtrate volume by 2.
The thickness of the resulting filter cake is measured at its center, and reported to
the nearest 1/32 inch or to the nearest millimeter.