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 M7500 add-on modules:
M7500 add-on modules provide powerful new functionality at a lower cost than competing, stand-alone instruments, while maintaining a single instrument footprint and merging seamlessly with your existing software training. Click the tabs below to explore the various additional options available.
- Rheometer
- Pycnometer
- Linear Swell
- Cement Rheometer
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.
M7500PVT Ultra HPHT Pycnometer:
 Patent Pending |
The M7500PVT Ultra HPHT Pycnometer 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 Pycnometer replaces components of the M7500 Rotor/Bob assembly. |
M7500LSM Linear Swell Meter:
The Grace Instrument M7500LSM Ultra HPHT Linear Swell Meter is an add-on module for the M7500 Ultra HPHT Rheometer and provides an automated, ultra-high pressure and high temperature linear swell meter (up to 30,000 psi and 600 °F). Like the dedicated Grace Instrument M4600 HPHT Linear Swell Meter, it is engineered to measure the volumetric expansion (or contraction) of a solid sample under simulated downhole conditions while saturating it with a fluid sample.
Patent Pending
More specifications and other information can be found on our M7500LSM Linear Swell Meter 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
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| For more information, please contact us. |
• Houston, Texas USA 77043 • Phone: 713-783-1560 • Fax: 713-974-7144
