OLR Cement Testing

OFITE has long been an industry leader in drilling fluids rheology. Now we will expand the toolkit for understanding how fluids behave in the well bore. We built a special flow loop, using a Positive Displacement Progressive Cavity Pump, to pump slurries through several measurement devices. One of those devices is the OLR Series 1000 OnLine Rheometer (OLR) which measures storage and loss moduli by imposing a small cyclic deformation on a fluid sample at a variety of frequencies.
In general, the OLR uses two plates that come down very close to each other and “squeeze” a fluid between them. One plate oscillates at a predefined range of frequencies and the other plate is connected to a small load cell that measures the force from the oscillating plate. Then the top moves up and allows a new sample to come between the plates. This process is repeated, providing a trend in rheological properties of a fluid that can be used to identify baselines and deviations during the process.