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CT-RCA-PCRI12
Capillary Pressure and Resistivity Index System
The Capillary Pressure and Resistivity Index System, model CT-RCA-PCRI12, measures the capillary pressure versus saturation relationship and the resistivity index on up to 12 core plugs at the same time. Each plug sits in its own core holder inside a temperature-controlled cabinet, and the run is managed from a PLC with a touchscreen HMI. It is a routine core analysis instrument: capillary pressure defines saturation versus pressure for seal, transition zone and pore throat analysis, and the resistivity index feeds Archie-based log interpretation.
How it works
Twelve 38 mm core holders with SS316 wetted parts (Hastelloy C-276 optional) run in parallel. Each plug rests on an alumina porous plate; 48 plates of 38 mm diameter and 99.99% purity are supplied. Pore pressure in the range 1 to 20 bar is applied to the plug so that the wetting phase is displaced through the plate, giving a differential capillary pressure of up to 20 bar. Displaced liquid is collected in a 20 mL separator at each position. Outlet back pressure is 3 bar. Confining pressure is rated 700 bar at 150 °C on the holders and 350 bar on the overburden module.
Electrical excitation is applied to each plug and its resistance is read by an LCR meter with 0.05% basic accuracy at frequencies up to 100 kHz. The cabinet holds 130 °C as standard (120 °C or 150 °C optional) with ±0.3 °C stability. Power is 110 or 230 V single phase with a 1.0 kW heater.
What is included
- 12 parallel core holders, 38 mm, SS316 wetted parts
- 48 alumina porous plates, 38 mm
- 12 separators, 20 mL each
- LCR meter, 0.05% basic accuracy, to 100 kHz
- Temperature-controlled cabinet with 1.0 kW heater
- PLC with touchscreen HMI
Specify for your project
- Number of positions to be equipped
- Plug diameter, if different from 38 mm
- Cabinet temperature: 120, 130 or 150 °C
- Confining pressure required and whether the 350 bar overburden module is needed
- Wetted material: SS316 or Hastelloy C-276
- Fluids and brine salinity, and the supply voltage
This description defines the product family. Guaranteed performance, included hardware, exclusions, interfaces and acceptance criteria are stated only in the project-specific technical proposal and approved datasheet.
Core Holder Diameter 38 mm Number of Positions 12 parallel core holders Max Operating Temperature 130°C (standard); 120°C or 150°C optional Temperature Stability ±0.3°C Max Confining Pressure 700 bar at 150°C Max Overburden Pressure (Module) 350 bar Capillary Pressure Range Up to 20 bar (differential) Pore Pressure Range 1–20 bar Back Pressure 3 bar (outlet) LCR Meter Accuracy 0.05% basic accuracy, up to 100 kHz Core Holder Wetted Parts SS316 stainless steel (Hastelloy C-276 optional) Porous Plates 48 × Ø38 mm, Al₂O₃ 99.99% purity Separator Volume 20 mL per position (×12) Power Supply 110V / 230 V, single-phase, 1.0 kW heater Control Interface PLC with touchscreen HMI Core Holder Diameter
38 mm
Number of Positions
12 parallel core holders
Max Operating Temperature
130°C (standard); 120°C or 150°C optional
Temperature Stability
±0.3°C
Max Confining Pressure
700 bar at 150°C
Max Overburden Pressure (Module)
350 bar
Capillary Pressure Range
Up to 20 bar (differential)
Pore Pressure Range
1–20 bar
Back Pressure
3 bar (outlet)
LCR Meter Accuracy
0.05% basic accuracy, up to 100 kHz
Core Holder Wetted Parts
SS316 stainless steel (Hastelloy C-276 optional)
Porous Plates
48 × Ø38 mm, Al₂O₃ 99.99% purity
Separator Volume
20 mL per position (×12)
Power Supply
110V / 230 V, single-phase, 1.0 kW heater
Control Interface
PLC with touchscreen HMI
| Model | CT-RCA-PCRI12 |
| Brand | Coretest |
