DYNAMIC HPHT® Filtration System
The industry's only true dynamic filtration system for conducting filter cake formation and permeability analysis for drilling fluids optimization.
Utilizing a wide range of available filter mediums, the DYNAMIC HPHT 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. 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 DYNAMIC HPHT 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:
- Differential pressure
- Shear rate
|209113||Dynamic HPHT Filtration System Model 90|
|Part Number||Porosity - Mean Pore Diameter||Permeability - Air|
|210545||5 micron||750 milli-darcy|
|210546||10 micron||950 milli-darcy|
|210547||20 micron||2,8 darcy|
|213483||35 micron||5,5 darcy|
|210548||60 micron||6,7 darcy|
|210549||90 micron||13,5 darcy|
|210550||150 micron||26,5 darcy|
|210551||190 micron||75 darcy|
|Working pressure||2500 psig|
|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||12.5 x 17.75 x 28 in (305 x 455 x 711 mm)|
|Weight||170 pounds (77 kg)|