Alternative to the Grace M5600
Summary. In rotational mode these two share the same published envelope: 2000 psi, 500 F, shear rate to 0.00004 s-1, viscosity to 5,000,000 cP. The Grace M5600 adds an oscillatory (viscoelastic) mode and is field-proven. The Coretest HPHT Rheometer is a comparable rotational alternative with an optical encoder and a bearing-free, field-serviceable cell.
The HPHT class at a glance
| Coretest HPHT | Grace M5600 | Chandler 5550 | Brookfield PVS | |
|---|---|---|---|---|
| Pressure | 2000 psi | 2000 psi | 2000 psi | 1000 psi |
| Max temp | 500 F | 500 F | 500 F | -40 to 260 C |
| Min shear rate | 0.00004 s-1 | 0.00004 s-1 | 0.17 s-1 | 0.2 s-1 |
| Shear stress | to 15000 | to 15000 | to 4900 | n/p |
| Oscillatory | In dev | Yes | No | No |
| Maturity | Prototype | Field-proven | Field-proven | Field-proven |
How the Coretest HPHT Rheometer compares
| Coretest HPHT Rheometer | Grace M5600 | |
|---|---|---|
| Max pressure | 2000 psi | 2000 psi |
| Max temperature | 500 F (260 C) | 500 F (260 C) |
| Shear rate | 0.00004 to 1870 s-1 | 0.00004 to 1870 s-1 |
| Shear stress | 1 to 15000 dyn/cm2 | 1 to 15000 dyn/cm2 |
| Viscosity | 0.5 to 5,000,000 cP | 0.5 to 5,000,000 cP |
| Oscillatory mode | In development | Yes (0.01-5 Hz) |
| Angular sensor | Optical incremental encoder | Not published |
| Bob-shaft bearings | None (serviceable) | Bob shaft present |
| Maturity | Prototype, ~6-8 mo | Field-proven |
Who each is for
Coretest HPHT Rheometer
Rotational HPHT work, field-serviceable cell, optical-encoder path, low-shear / gel strength. Backed by FAT, extended warranty, free software updates.
Rotational HPHT work, field-serviceable cell, optical-encoder path, low-shear / gel strength. Backed by FAT, extended warranty, free software updates.
Grace M5600
Need viscoelastic data today (G', G'', phase), or a field-proven unit on a fixed timeline.
Need viscoelastic data today (G', G'', phase), or a field-proven unit on a fixed timeline.
Evaluating an HPHT rotational rheometer?
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Trademark notice: Chandler, Grace (Grace Instrument), Brookfield and the model names referenced on this page are trademarks of their respective owners. Coretest is not affiliated with, authorized, endorsed by, or sponsored by these companies. All comparisons are based on each manufacturer’s published specifications as of the date shown and are provided for engineering evaluation only. Specifications are subject to change; verify current data with each vendor before purchase.
