The Fann Dynamic HPHT® Filtration System is the industry’s only true dynamic filtration system for measuring filtration properties of drilling fluids and breakers at elevated temperatures and pressures. The system is fully automatic with a built-in computer controller and menu-driven software for programming test variables. The LCD display allows monitoring of real-time test data, which can be recorded in a laboratory notebook or printed. The Dynamic HPHT® also features an interface port for downloading data directly to a personal computer.

Model 90
Model 90

This high-pressure, high-temperature (HPHT) unit closely simulates downhole conditions. It uses ceramic filter cores ranging from 5 to 190 microns and offers twenty sequence steps for temperature, pressure, differential pressure and shear rate, ensuring reliable test results. Built-in safety features include a pressure relief valve, an automatic over-temperature shutdown, an automatic heater and motor cut-off interlock door.

The filter core is a thick-walled cylinder with formation-like characteristics comparable to a borehole. Filtration occurs radially, flowing from the center outward of the filter core. Simultaneously, the filter cake is forms on the inside of filter core the same way a filter cake forms on the walls of a borehole. A polished stainless steel shear bob runs through the central axis of the filter core. The shear bob is rotated to produce a concentric cylinder-type shear across the filtration surface. The fluid loss volume and rate can be easily measured and recorded.

Filter Core, Model 90
Filter Core, Model 90

Ordering Information

Part No. 209113 Dynamic HPHT® Filtration System, Model 90

For Filter Cores, please check the datasheet for Filter Cores in Related resources

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