Patent ID: 8863567
Filing Date: 2014-10-21
Classification: E21B,G01N

Abstract:
1. A method comprising: obtaining a known volume of wellbore fluid comprising a base fluid and loss circulation materials; passing the wellbore fluid through a simulated wellbore fractures thereby plugging the simulated wellbore fractures with the loss circulation materials; and measuring the amount of filtrate generated from passing the wellbore fluid through the simulated wellbore fracture; wherein the simulated wellbore fracture comprises a plurality of perforations each disposed within a furrow and located radially about a central axis of the simulated wellbore fracture and extending through a non-porous material that forms a plate, the furrow having a depth less than the plate thickness, the plurality of perforations each having a perforation length oriented along a line extending from the central axis to an outer edge of the simulated wellbore fracture.