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OfiTE 171-193-6K, Instruction Manual

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OfiTE 171-193-6K Instruction Manual Download Page 17

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com

16

Testing

Starting a Test

1. 

Unscrew the T-screw on the CO

2

 pressure assembly to make sure the 

regulator is completely closed.

2. 

Place a CO

2

 bulb in the barrel and screw it onto the pressure assembly. 

This will puncture the CO

2

 bulb.

3. 

Turn the T-screw clockwise to set the back pressure. Refer to the chart 

below to determine the minimum recommended back pressure for your 

test temperature.

4. 

Stroke the pump to apply the same pressure to the cell.

Make sure the pressure release valve on the pump is closed and the ball 

valve on the inlet manifold is open.

If the LCM fails to plug the filter media, it is unlikely the pressure in the 

cell will build. If the cell pressure has not increased after approximately 20 

strokes of the pump, stop the test and record the results as “Total Fluid 

Loss”.

Throughout the test, use the pump to maintain the pressure differential.

5. 

Periodically check the thermometer in the test cell and adjust the thermo-

stat as needed.

While the cell is heating, the pressure inside will rise due to thermal 

expansion. Use the pressure release valve on the pump to prevent 

over-pressurization. Maintain the pressure on the fluid until the tempera-

ture has stabilized. The heating time of the sample should 

never exceed 

one hour

.

Recommended Minimum Back Pressure

Test Temperature

Vapor Pressure

Minimum Back Pressure

°F

°C

psi

kPa

psi

kPa

200-299

95-149

12.1-67

84-462

100

700

300-374

150-189

67-184

462-1269

200

1400

375-399

190-199

184-247

1269-1704

275

1900

400-424

*

200-219

247-326

1704-2245

350

2500

425-450

*

220-230

326-422

2245-2912

450

3100

*For tests above 400°F, use green Viton 90D o-rings.

Summary of Contents for 171-193-6K

Page 1: ...eiver 6000 psi 171 193 6K 115 Volt 171 193 6K 1 230 Volt Instruction Manual Updated 6 14 2019 Ver 4 OFI Testing Equipment Inc 11302 Steeplecrest Dr Houston Texas 77065 U S A Tele 832 320 7300 Fax 713 880 9886 www ofite com Copyright OFITE 2017 ...

Page 2: ...e com 1 Intro 2 Description 2 Specifications 2 Components 3 Safety 5 Quick Start 7 Preparation 10 Cell Assembly 11 Testing 16 Data 19 Cell Cap Assembly 20 Piston Assembly 21 Maintenance 22 Diagrams 24 Permeability Plugging Tester 24 Test Cell 25 Warranty and Return Policy 26 Table of Contents ...

Page 3: ...testing The pressure cell is similar to those seen in standard HTHP filtration testing but it is inverted with the filter medium and the back pressure receiver on top of the assembly It is pressurized with hydraulic oil and a hand pump A floating piston separates the oil from the test fluid in the cell The cell has a maximum pressure rating of 6 000 psi Both end caps are designed to accept a 1 4 N...

Page 4: ...for Rupture Disk Viton 75D Qty 2 130 81 040 Retaining Ring Qty 2 170 13 3 O ring for Cell Viton 75D Qty 4 170 17 O ring for Valve Stem Viton 75D Qty 4 171 95 T handle for Piston 171 190 020 S Cell Body 171 190 023 Locking Ring Qty 2 171 190 024 S Piston 171 190 029 Cell Cap Wrench 171 190 038A S Cell Cap Out for Ceramic Disks 1 4 NPT 316 Stainless Steel 171 190 039 Set Screw for Piston 171 190 051...

Page 5: ... 2 5 0 6000 PSI 171 193 501 Quick Connect Fitting Male 1 4 NPT 171 193 502 Quick Connect Fitting Female 1 4 NPT 171 193 503 Hex Nipple 1 4 NPT 4 171 193 505 Pressure Relief Valve 500 SS 4 HCG Fitting Hex Couple 1 4 FNPT 171 193 101 LCM Receiver 170 16 Valve Stem 170 32 Needle Valve Male 171 190 057 O ring for Valve Stem Viton 90D 171 84 010 Receiver Body 171 84 011 Bottom Cap 171 84 012 Top Cap 17...

Page 6: ...se gasses are dangerous at elevated temperatures The maximum working pressure of the test cell 6 000 PSI 41 2 MPa is marked on the cell body and cap Never exceed this pressure 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 first set is made from Viton 75...

Page 7: ...om the cell at the quick connect 2 Attempting to remove the cell from the heating jacket 3 Reallocating or moving the PPT in the laboratory 4 Refilling the hydraulic pump 5 Performing any maintenance including tightening leaking fittings on the pump hydraulic fittings or cell assembly When refilling or repairing the hydraulic system make sure any spilled oil is cleaned Oil on the floor is very sli...

Page 8: ... body and tighten it com pletely 10 Push in the red knob on the heating jacket Place the cell in the heating jacket with the inlet side pointing down 11 Screw the inlet pressure assembly into the inlet cell cap 12 Screw the t handle into the piston 13 Push the piston inside the cell against the inlet cell cap Tighten the set screw on the piston bleed valve 14 Connect the inlet pressure manifold to...

Page 9: ...jacket and lower the cell Rotate the cell until it seats 32 Move the thermometer to the cell body 33 Place a CO2 bulb in the CO2 pressure assembly Set the pressure to the appropriate back pressure for your test 34 Stroke the pump to apply the same pressure to the cell 35 When the cell has reached the test temperature stroke the pump to apply the working test pressure to the cell 36 Collect filtrat...

Page 10: ...sk and save the filter cake for later analysis 47 Discard any remaining test fluid 48 Screw the t handle into the piston and push the piston to the bottom of the cell 49 Close the pressure release valve on the pump and the ball valve on the pressure manifold 50 Disconnect the pressure manifold from the inlet pressure assembly 51 Remove the inlet pressure assembly and inlet cell cap assembly 52 Cle...

Page 11: ...base fluid Use water for freshwater based fluids brine for saltwater based fluids diesel for oil based fluids and a synthetic base for synthetic based fluids Never reuse a disk except for return permeability studies Below is a list of ceramic disks available 170 55 Ceramic Filter Disk 775 milli darcy 10 micron 2 170 53 2 Ceramic Filter Disk 850 milli darcy 12 micron 2 170 53 3 Ceramic Filter Disk ...

Page 12: ...re not already assembled refer to page 20 for assem bly instructions 4 Set the cell body on the stand with the end marked IN pointing up Place an o ring 170 13 3 on the shoulder inside the cell body and one in the groove around the cell cap 5 Apply grease to the threads of the cell caps 6 Screw the inlet cell cap assembly into the cell body 7 Push in the red knob on the heating jacket This moves t...

Page 13: ... rings 171 99 into the grooves around the piston 12 Screw the T handle into the piston 13 Push the piston inside the cell against the inlet cell cap 14 Tighten the set screw on the piston bleeder valve completely 15 Connect the inlet pressure manifold to the inlet pressure assembly Make sure the quick connect fittings are completely engaged Pull down hard on the ring on the female fitting until it...

Page 14: ... inside the cell This will help you see how far the T handle has risen 19 Unscrew the T handle from the piston 20 Prepare the test fluid 21 Carefully pour the test fluid into the cell The fluid level should be just below the o ring shoulder Be careful not to get fluid on the o ring shoulder 22 Place an o ring on the shoulder inside the cell body 23 Place a ceramic disk or a circle of filter paper ...

Page 15: ... hole in the LCM Receiver bottom cap to fill the void space b Open the needle valve and allow the excess water to drain c Close the need valve 27 Apply a thin coat of grease to the receiver cap o rings 171 84 015 28 Place one o ring around each cap 29 Screw the top cap into one end of the cell body the ends of the body are interchangeable 30 Screw the receiver body onto the bottom receiver cap 31 ...

Page 16: ...0 9886 www ofite com 15 34 Rotate the cell until it locks in place over the alignment pin in the bottom of the heating jacket 35 Place a metal dial thermometer 154 20 in the top of the cell in the small hole CO2 Pressure Receiver Safety Pin 171 23 1 Needle Valve 170 32 T Screw ...

Page 17: ...e cell pressure has not increased after approximately 20 strokes of the pump stop the test and record the results as Total Fluid Loss Throughout the test use the pump to maintain the pressure differential 5 Periodically check the thermometer in the test cell and adjust the thermo stat as needed While the cell is heating the pressure inside will rise due to thermal expansion Use the pressure releas...

Page 18: ... off the heating jacket 2 Allow the cell to cool to room temperature before disassembling it 3 After the cell has cooled slowly open the pressure release valve on the pump This will allow hydraulic oil to flow back into the pump 4 Open the outlet port on the receiver to collect any remaining filtrate 5 Close the regulator on the CO2 pressure assembly and release any re maining pressure by opening ...

Page 19: ...into the piston on the outlet side 14 Manually push the piston to the bottom of the cell This will force any re maining hydraulic fluid back into the pump 15 Close the pressure release valve on the pump and the ball valve on the pressure manifold 16 Disconnect the pressure manifold from the inlet pressure assembly 17 Remove the inlet pressure assembly cell cap assembly and piston Be aware that som...

Page 20: ...s is the amount of filtrate collected before the filter cake has had a chance to form and is expressed in millimeters To calculate the spurt loss use the following equation V1 2 V7 5 V30 V7 5 2 2V7 5 V30 4V7 5 2V30 Where V1 Spurt Loss V7 5 Filtrate volume collected after 7 5 minutes V30 Filtrate volume collected after 30 minutes Filter Cake Wash the filter cake on the paper with a gentle stream of...

Page 21: ... 20 Cell Cap Assembly 1 Place the locking ring 171 190 023 around the cap 2 Place the retaining ring 130 81 040 into the groove around the outside of the cap Make sure it engages completely around the circle The cap should turn freely inside the locking ring O ring Cap Retaining Ring Locking Ring ...

Page 22: ... o ring 120 910 028 into the rupture disk port 2 Screw the rupture disk into the port 3 Place an o ring 700 100 096 into the bleed port 4 Screw the set screw 171 190 039 into the bleed port Unscrew it one full turn 5 Place two o rings 171 900 025 in the o ring grooves around the out side of the piston Rupture Disk O ring O ring Set Screw ...

Page 23: ...rately To replace the seat assembly a Unscrew the spring case housing cover This may require a strap wrench b Remove the spring case c Remove the rubber diaphragm from inside the spring case d Remove the thrust plate e Using a wrench loosen and remove the brass retainer f The thrust pin and seat are now exposed Remove them from the base g Replace the spring h Replace the seat holder i Replace the ...

Page 24: ...y or inlet filter Repair the regulator Gas leak from any pipe thread joint Loose fitting Remove the connection Clean the affected surfaces Reapply Teflon tape and tighten Gas leak from relief valve Faulty relief valve replace the valve Seat leak or creep Repair the regulator Inconsistent repeat readings Seat sticking Repair the regulator Bad pressure gauge Replace the gauge Gauge does not return t...

Page 25: ... 84 012 Test Fluid Test Cell 171 193 6K S Piston 171 190 024 S Hydraulic Oil 171 96 1 Tee 145 00 001 Ball Valve 171 98 Quick Connect Male 171 193 501 Quick Connect Female 171 193 502 Elbow 171 90 12 Barrel 143 03 Safety Pin with Lanyard 171 23 1 Valve Stem 170 16 Body 171 84 010 O ring 171 84 015 Filter 171 84 014 O ring Viton 75D 171 99 90D 171 190 061 O ring 171 84 015 Gauge 171 190 062 Hose Ada...

Page 26: ...Fax 713 880 9886 www ofite com 25 Diagrams Test Cell Locking Screw 171 190 023 Retaining Ring 130 81 040 Outlet Cap for Ceramic Disks 171 190 038 S Cell Body 171 190 020 S Retaining Ring 130 81 040 Locking Screw 171 190 023 Piston 171 190 024 S Inlet Cap 171 190 051 S ...

Page 27: ...any losses or damages that occur as a result of Improper installation or maintenance of the products Misuse Neglect Adjustment by non authorized sources Improper environment Excessive or inadequate heating or air conditioning or electrical power failures surges or other irregularities Equipment products or material not manufactured by OFITE Firmware or hardware that have been modified or altered b...

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