Wettability Test Apparatus 

Model TG-3266 Wettability Test Apparatus is designed to evaluate the apparent wettability of spacer fluids, preflush fluids, and spacer and surfactant fluid combinations.

TG-3266 Wettability Tester provides all the functionality of the  Constant Speed Mixer, PLUS the ability to evaluate the oil/water phase transition of oil based drilling fluids as they interact with spacer and/or pre-flush systems. The instrument measures wettability by continuously monitoring the electrical conductivity of the fluids subjected to heat and shear at atmospheric pressure.

With the TG-3266, the water-based, water-external fluid is used to establish a reference conductance. The conditioned oil-external fluid is then placed in the pre-heated mixer cup and stirred. The water-

based fluid referenced is then added until the digital conductivity meter indicates a stable water-wetting state. In addition to the digital display, the operator is able to visually ascertain the compatibility of the mud and spacer during this test.

The instrument includes a control box, mixer and heated mixing container. The control box of the instrument is separate from the mixer and mixer container. It is connected by control cables allowing the control box to be located safely and conveniently away from the mixing container. The control box includes: the conductivity meter display, and the temperature jacket controller. The mixer control panel displays the current speed (RPM) and has a timer with automatic shut-off capabilities to guard against over-mixing.