Mud Dynamic Filtration System
Mud Dynamic Filtration System
Utilising a wide range of available filter mediums, the Mud Dynamic Filtration System can be heated and pressurized to provide the closest possible simulation of down-hole conditions. Several safety features have been designed into the system to protect the user and help ensure reliable test results.
The filter medium is a thick-walled cylinder with rock-like characteristics to simulate the build-up of filter cake on the formation. The filter medium is available in varying porosities and permeabilities to simulate down hole formations.
Filtration occurs radially from the inside of the filter core to the outside. At the same time, the filter cake is formed on the inside of the filter core to simulate filter cake formation on the wall of a borehole. Polished stainless steel shear bob Following completion of a test, the filter cake can be inspected visually. A polished stainless steel shear bob runs through the central axis of the filter core. The shear bob is rotated to produce a concentric cylinder-type shear across the filtration surface.
The LCD display allows monitoring of real-time test results, which are printed for further analysis and filing of test results. The Mud Dynamic Filtration System also features an interface port, which allows downloading of ASCII-formatted data to a personal computer. The system is fully automatic with a built-in computer controller.
Through menu-driven software, the user can establish up to 20 sequence steps to program the following testing parameters:
- Temperature
- Pressure
- Differential pressure
- Shear rate
Safety Features
- Rupture disk on high pressure gas supply
- Safety pressure relief valve on the heated, pressurised cell
- Independent over-temperature shut-down
- Heater and motor cut-off interlock door when door is opened
- Automatic cool down when test ends
- System pressurizes when cell and collector properly positioned
- Cell design free of stressed threaded closures, set screws or caps, which require tightening
- Cell made with MONEL® alloy K-500 with stainless steel end caps
- No welded joints on stressed parts
- Pressure fittings made of stainless steel
Advantages
- Fully automatic, complete with built-in computer controller and menu-driven software
- Programmable up to 20 sequence steps, providing various test parameters
- Options to view data on LCD display, print it, or download to computer
- Automatic collecting of filtrate volume in 1/3 ml increments
- Comprehensive data points, each with filtrate volume, pressure, differential pressure, sample temperature, and shear rate
- Magnetically-driven motors and pumps for easier maintenance and power savings
- Cells designed for easier and safer loading and unloading
- Quick-connect fittings on filtrate hoses for simple assembly or disassembly
- Various safety features including rupture disk, pressure relief valve, over-temperature shut-down
Specification
| Working pressure |
2500 psig |
| Maximum temperature |
500°F |
| Maximum differential pressure |
500+ psig
(actual maximum limited by core strength) |
| Maximum power requirements |
1500 watts |
| Heater power |
1200 watts |
| Power supply |
120/240V, 50/60 Hz |
| Sample volume |
250 cc |
| Filtrate volume |
50 cc |
| Shear bob drive |
¼ hp motor with belted magnetic drive;
no dynamic seals to wear out |
| Shear rate constant |
2693 1/s per rpm (no filter cake) |
| Initial shear rate range (with standard bob) |
9, to 269 1/s |
| Dimensions |
305 x 455 x 711 mm |
| Weight |
77 kg |
