Volumetric Cement Expansion Device - OFITE
The OFITE Volumetric Cement Expansion Device (VCED) is an accessory component to the Ultrasonic Cement Analyzer (UCA). It can be purchased with a new UCA or as an add-on component for existing units. This system continuously measures the expansion or contraction of a cement sample while simultaneously running a standard UCA test to measure compressive strength.
Method of Operation
The VCED attaches directly to the UCA test cell during testing. A bi-directional pump pressurizes the cell and continuously monitors the volume of fluid inside. As the cement sample expands or contracts, the software records the change in volume, as well as the temperature, transit time, compressive strength, and acoustic impedance.
The bi-directional pumping system provides precise control over the pressure in the UCA test cell, holding it to within 25 PSI of the target.
The VCED is the only device capable of monitoring the expansion properties of a cement slurry while simultaneously measuring compressive strength.
Features and Specifications
- Continuous measurement under high-temperature, high-pressure conditions
- Maximum Pressure: 15,000 PSI (103.4 MPa)
- Maximum Temperature: 400°F (204.4°C)
- Maximum Measurement: ±15%
- Measurement Range: ±30 mL
- Sample Volume: 190 mL
- Programmable temperature control
- Data Acquisition System displays test data on-screen in real time
- Pressure control: ±25 PSI
- Sold separately or with a new UCA unit
