OfiTE 170-95 User manual

Dynamic HTHP Filter Press
With Magnetic Drive
#170-95 - 115V
#170-95-1 - 230V
Instruction Manual
Updated 6/24/2015
Ver. 2.0
OFI Testing Equipment, Inc.
11302 Steeplecrest Dr. · Houston, Texas · 77065 · U.S.A.
Tele: 832.320.7300 · Fax: [phone] · www.ote.com
©Copyright OFITE 2015

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 1
Intro..................................................................................................2
Description......................................................................................2
Specications .................................................................................2
Components ...................................................................................3
Safety...............................................................................................4
Setup................................................................................................5
Quick Start ......................................................................................6
Operation.........................................................................................8
Data................................................................................................14
Cell Cap Assembly .......................................................................15
Maintenance..................................................................................17
Fuses ........................................................................................17
Bearing Replacement ...............................................................18
Appendix .......................................................................................21
Mag Drive..................................................................................21
Top Cell Cap .............................................................................21
Warranty and Return Policy ........................................................22
Table of
Contents

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 2
The OFITE High-Temperature, High-Pressure (HTHP) Dynamic lter press
measures ltration properties under varying dynamic down-hole conditions.
A motor driven shaft tted with a propeller turns at varying speeds inside a
standard 500-mL HTHP cell. Speed settings up to 3,600 RPM impart laminar
or turbulent ow to the uid inside the cell, and by varying the shaft length,
the shear stress may be increased or decreased. Other features include a
variable speed motor with RPM indicated on a digital display.
The test procedure is exactly the same as that in the conventional HTHP
ltration test. The only difference is that uid is circulating inside the cell,
while ltrate is being collected. Since the lter medium is conventional disk
material, the results are fully comparable with those of other laboratories or
for comparing historical trends.
The Dynamic Filter Press comes with two interchangeable bottom caps to
accommodate quarter inch thick ceramic disks or conventional lter paper.
Both caps have a threaded hole for the valve stem, which connects to the
100-mL back pressure receiver.
Two regulators provide both main pressure and back pressure from a single
Nitrogen source. A temperature controller maintains a constant temperature
throughout the test and a temperature display shows the cell temperature.
The Dynamic Filter Press also comes with an internal cooling system which
enables the cell to be cooled rapidly via a water or coolant connection.
- 500 mL Stainless Steel Test Cell
- Maximum Allowable Working Pressure 2,500 PSI (17.2 MPa)
- Variable Speed Motor: up to 3,600 RPM
- Digital Temperature Controller: 100° to 500°F (38° to 260°C)
- Requires a Nitrogen source of at least 2,500 PSI
Intro
Description
Specications

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Components #122-077 10 Amp Fuses, Qty: 2
#153-12 Graduated Cylinder, 100 mL × 1 mL, Glass
#154-20 Thermometer, Metal Dial, 8" Stem, Dual Scale: 50°F -
500°F / 0°C - 250°C
#170-19 Filter Paper; 2½" (6.35 cm)
#170-35 Adjustable Wrench, 6"
#170-50-075 Mag Drive, ¼" HP, ¾" NPT,
#170-50-078 Magnetic Pickup, HTHP Dynamic
#170-53 Filter Disk, 2½", Ceramic
#170-67 Propeller, 1½", Stainless Steel
#170-68 Propeller, 2", Stainless Steel
#170-95-313 Spanner Wrench
#170-95-317 4" Shaft Extension
#171-10 Back Pressure Receiver, 100 mL
#171-190-028 Cell Assembly Stand
#171-23-1 T.C. Safety Pin W/Lanyard 3"
#171-196-316 Cell Assembly, HTHP System, Mud Dynamic W/Mag
#120-910-028 O-ring, Viton 75D
#130-81-040 Retaining Ring, Qty: 2
#170-13-3 O-ring for Cell, Viton, Qty: 4
#170-16 Valve Stem, Qty. 2
#170-17 O-ring,for Valve Stem, Qty: 4
#171-190-020-316 Cell Body, 10.5" D.E. 316
#171-190-021 Adapter, Dynamic, Valve Stem
#171-190-023 Cap Screw, Qty: 2
#171-190-027 Plug, Rupture, 5,500 PSIG
#171-190-029 Cap Wrench, Bar
#171-190-030-S Cap, End, 60 Mesh, Out, 316
#171-190-034-S Cap, End, Ceramic Disk, Out
#171-190-035-S Cap, Top, End, Dynamic Mag
#171-190-041 Adapter, Dynamic, ¼" NPT
#170-190-057 O-ring, -008, VW155 90D, Qty. 4
#170-190-058 O-ring, -011, VW155 90D
#170-190-060 O-ring, -228, VW155 90D, Qty. 4
Optional:
#171-196-316 Threaded Filter Press Cell Assembly, 500mL,
.316 SS.
#171-196-H Threaded Filter Press Cell Assembly, 500mL,
Hastelloy
#171-196-S Threaded Filter Press Cell Assembly, 500mL, SS
#170-58 ½" Shaft Extension
#170-59 1" Shaft Extension
#170-60 1½" Shaft Extension

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Safety Read this manual carefully before attempting to use the equipment. Improper
use can result in injury or damage to the equipment.
Temperature
The heating jacket, test cell, and valve stems will be very hot during testing.
Handle these components with care. Never touch hot components without
wearing protective clothing.
At elevated temperatures, the uid in the test cell will expand. Never ll the
test cell completely with uid. Always leave some void space to allow for
thermal expansion. Refer to page 9 for recommended ll volumes.
Pressure
Always pressurize with either Carbon Dioxide or Nitrogen. Do not use Nitrous
Oxide (NO2), Oxygen (O2), or compressed air. These gasses are dangerous
at elevated temperatures.
#171-196-316 Threaded, 500 mL., Cell Assembly, .316 Stainless Steel
Maximum Allowable Working Pressure 4,000 PSI
#171-196-H Threaded, 500 mL., Cell Assembly, Hastelloy
Maximum Allowable Working Pressure 5,000 PSI
#171-196-S Threaded, 500 mL., Cell Assembly, Stainless Steel
Maximum Allowable Working Pressure 5,000 PSI
Equipment
Inspect all o-rings before every test. Discard any that show signs of damage
or wear. Looks for nicks, cuts, or brittle o-rings. Two sets of o-rings are
included with the Filter Press. The rst set is made from Viton 75D. These
o-rings are black and should be used for tests up to 400°F only. The second
set is made from Viton 90D. These o-rings are green and should be used for
tests up to 500°F.
The Safety Pin includes an attached lanyard. The lanyard secures the pin and
prevents it from accidentally disengaging from the valve stem and pressure
assembly. Always secure the pin with the lanyard.
Quick-Connect
Fitting
Safety Pin
Back Pressure
Receiver
Safety Retainer Pin with Lanyard
(# 171-23-1)

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Setup 1. Carefully unpack the units and place them on a stable surface near a
power outlet. Unpack and unwrap each of the component pieces.
2. Make sure all switches are off and both regulators are backed off
(counterclockwise) completely.
3. Connect a Nitrogen source to the port to the back of the control box.
4. Plug the instrument into a suitable power source.
ElectricalNitrogen
Chill Input Chill Output
5. Connect the input and output to a chiller/water source prior to heating the
cell if the water cooling method will be used upon completion of the test.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 6
Quick Start 1. Preheat the heating jacket to 10°F (6°C) above the test temperature. The
pilot light will turn on at the target temperature.
2. Inspect all o-rings. Replace any that show signs of damage or wear.
3. Apply grease to all o-rings.
4. Assemble both cell caps. Place an o-ring in the groove around the cap.
5. Place an o-ring in the groove inside the cell.
6. Place a circle of lter paper or ceramic disk on top of the o-ring.
7. Screw the outlet cell cap into the cell and tighten it completely.
8. Screw a valve stem into the outlet cell cap and tighten it completely.
9. Place an o-ring in the groove inside the cell.
10. Place an o-ring in the groove around the cell cap.
11. Pour mud in the cell leaving the proper amount of void space.
See page 9.
12. Screw the inlet cell cap with the mag drive attached into the cell. Tighten it
completely.
13. Screw a valve stem into the inlet cell cap and tighten it completely.
14. Place the cell in the heating jacket. Rotate the cell until it locks.
15. Install the cell temperature thermocouple into the cell body.
16. Plug the mag drive into the port on the back of the control box.
17. Connect the manifold block to the top valve stem and secure it with the
safety pin.
18. Connect the back pressure receiver to the bottom valve stem and secure it
with the safety pin.
19. Adjust both regulators to the target back pressure for the test.
20. Open the top valve stem ½ turn.
21. After heat time, increase the top pressure to 500 PSI above the back
pressure.
22. Open the bottom valve stem to initiate ltration.

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23. Collect ltrate and record the volume at 1, 7.5, and 30 minutes.
24. After 30 minutes, close both valve stems.
25. Turn both regulators counterclockwise.
26. Open the outlet valve on the back pressure receiver to collect any
remaining ltrate.
27. Open the valve on the manifold block to release any remaining pressure.
28. Remove the manifold block and back pressure receiver.
29. Begin cooling by opening the cooling valve on the back of the jacket.
30. Remove the cell from the heating jacket. Keep the outlet side pointing
down.
31. When the cell is cool, slowly open the valve stem on the inlet side to
release the pressure.
32. Unscrew the outlet cell cap.
33. Wash the lter cake and record the thickness to the nearest 1/3 2 ".
34. Clean and dry all components.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 8
Operation 1. Turn the “Power” and “Heat” switches on.
2. Connect the temperature controller extension cable from the back of the
control box to the back of the lter press.
3. Use the up and down arrows on the “Temperature Controller” set the
temperature to 10°F (6°C) above the desired test temperature.
4. Inspect all o-rings. Replace any that show signs of damage or wear.
Looks for nicks, cuts, or brittle o-rings. Replace all o-rings after any test
above 350°F (176.7°C). Place a thin lm of silicone grease on all o-rings.
Temperature Controller
Tachometer
Cell Temperature
Speed Control Knob
Main Pressure
Back Pressure
5. Place an o-ring (#170-13-3) on the shoulder inside the cell body on the
end marked “OUT”. Place another o-ring in the groove around the cell
cap.
6. Place a circle of lter paper or ceramic disk on top of the cell o-ring.
Gently push the paper or disk downward so it contacts the o-ring without
the paper binding or pinching.
7. Secure the cell cap with the cap wrench bar (#171-190-029).
8. Place an o-ring in each of the two o-ring grooves on both valve stems.
9. Screw one valve stem into the outlet cell cap. Tighten the valve stem
completely.

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10. Invert the cell body and carefully pour the sample into the cell. Leave
enough void space for thermal expansion (see chart below). Consider the
volume of the shaft and propeller for additional void space.
14. Secure the top cap assembly in place with the spanner wrench
(#170-95-313).
15. Screw a valve stem into the cell cap and tighten it completely.
API Recommended Void Space
Fluid / Temperature Void Space Fluid Volume
Water-based drilling uid. < 300°F 0.6" (1.5 cm) 405 mL
Water-based drilling uid. < 300°F 1.5" (4.0 cm) 353 mL
Oil-Based Drilling Fluid. Any temperature. 1" (2.5 cm) 382 mL
11. Place an o-ring on the shoulder inside the cell body. Place another o-ring
on the cell cap.
Be careful not to spill uid on the o-ring inside the cell.
12. Unscrew the magnetic drive from the cell cap. Replace the Teon tape
around the threads on the magnetic drive. Screw the drive back into the
cell cap.
13. Lower the propeller and propeller shaft down into the test cell.