M8500 Ultra HPHT
Dynamic Sagging Tester
The Grace Instrument M8500 High Pressure, High Temperature Dynamic Sagging Tester is designed for evaluating barite sagging and other weight material sag under simulated drilling conditions.
The M8500 Sagging Tester is engineered for safe testing while providing ultra high pressure and high temperature sag test conditions.
Data Integrity
The innovative design of the M8500 Sagging Tester accumulator piston prevents contamination of the drilling fluid inside the testing cell with pressurization fluid.
Control Parameters
A sample of drilling fluid is subjected to an adjustable temperature, pressure, rotor (pipe) speed and borehole angle for a set period of time.
Sample Extraction
Small amounts of the sample are taken from a defined collection site within the testing cell while maintaining temperature, pressure, and shear conditions. This method of sample extraction produces repeatable results.
Sample Characterization
The density and composition of the extracted sag samples can be measured. Other qualitative and quantitative analysis can also be performed.
Example of M8500 Sagging Test Results:
| Table 1: M8500 Dynamic Sagging Tester Results for 11.00 lb/gal, oil-based fluid with API Barite weight material | ||
| Initial Mud Density | lb/gal | 11.00 |
| Borehole Angle | degrees | 80 |
| Temperature | oF | 300 |
| Pressure | psi | 20,000 |
| RPM | rpm | 100 |
| Annulus | inch | 0.375 |
| Shear Rate | S-1 | 33.71 |
| Sag Density after 1 hour | lb/gal | 13.14 |
| Density Difference | lb/gal | 2.14 |
| Relative Density Increase | % | 19.45 |
More M8500 Functionality:
- M7500 Rheometer
- Cement Rheometer
- Densitometer
M7500 Ultra HPHT Rheometer:
The patented M7500 Ultra HPHT Rheometer is capable of testing fluid viscosity under conditions of temperature and pressure ranging from atmospheric to 30,000 psi and from 20 °F (with chiller) to 600 °F.
More specifications and other information can be found on our M7500 Ultra HPHT Rheometer page.
M7500 HPHT Cement Rheometer:
The HPHT Cement Rheometer is an engineered insert for the M7500 Ultra HPHT Rheometer that is designed for testing cement samples.
The cement sample is contained entirely within the rotor assembly, reducing contamination with pressurization fluid to a bare minimum. Once testing is finished, the rotor can be quickly disassembled for easy cleanup.
The patented design of the cement cell module eliminates jewel bearings, thus preventing measurement errors which can occur when bearings become contaminated with sample fluids.
Patent Pending
M7500PVT Ultra HPHT Densitometer:
 Patent Pending |
The M7500PVT Ultra HPHT Densitometer module measures dilametric changes in the density of a solid or fluid sample under conditions of temperature and pressure over a period of time. The patented M7500PVT Ultra HPHT Densitometer replaces components of the M7500 Rotor/Bob assembly. |
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| For more information, please contact us. |
• Houston, Texas USA 77043 • Phone: 713-783-1560 • Fax: 713-974-7144
