CTE Model 2-450 Stirred FLuid Loss Tester

A stirred fluid loss tester is used to determine the quantity of fluid that can be lost from a given slurry during placement in the well. The Model 2-450 allows the slurry to be mixed, or stirred under simulated downhole conditions of temperature and pressure. Then testing per API recommended practices is performed in a single instrument, eliminating the need to transfer the slurry from a hot consistometer to a fluid loss tester. It has been proven by comparative testing, that the use of a single instrument for fluid loss testing will result in more predictable and reproducible results, as well as a safer testing environment for the operator.

The CTE stirred fluid loss tester consists of a pressure vessel that is capable of achieving pressures up to 2,000 psig / 13.8 Mpa and temperatures up to 450°F / 232°C. Pressure for the instrument is provided using high pressure gas (nitrogen is preferred). Heat is applied to the cylinder using a heating/cooling jacket and temperature is controlled within 1 degree Celsius. The vessel can be rapidly cooled by circulating cooling water through the jacket after completion of a test. The pressure vessel contains a stirring paddle that rotates at 150 rpm. A standard 325 mesh screen is used as the filter medium to determine the amount of fluid that can be lost from the slurry. An optional filtrate cooling jacket is included for tests above 200°F / 95°C.