OfiTE 2025 User manual

Automated HTHP Consistometer
#120-35 - Model 2025, 25,000 PSI, 400°F
#120-40 - Model 2040, 40,000 PSI, 600°F
Instruction Manual
Updated 1/13/2017
Ver. 7.0
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
Requirements .................................................................................3
Intro..................................................................................................3
Description......................................................................................3
Features...........................................................................................3
Specications .................................................................................4
Components ...................................................................................4
Quick Start ......................................................................................7
Starting a Test .............................................................................7
Completing a Test .......................................................................8
Instrument Controls .......................................................................9
Setup..............................................................................................14
Consistometer...........................................................................14
Operation ......................................................................................16
Filling the Slurry Cup.................................................................16
Starting a Test ...........................................................................18
Completing the Test ..................................................................20
Software ........................................................................................21
Onboard Test Prole Builder.....................................................24
Custom Test Prole Builder.......................................................27
Setup.........................................................................................29
Data Archives............................................................................30
Standalone Mode..........................................................................31
Managing Tests.........................................................................33
Utilities.......................................................................................36
Calibration.....................................................................................38
Potentiometer ...........................................................................38
Value Chart ...............................................................................40
Pressure....................................................................................41
Temperature..............................................................................42
Preventative Maintenance ..........................................................43
Cleaning....................................................................................43
Potentiometer ...........................................................................45
Rupture Disk .............................................................................47
Table of
Contents

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 2
Oil Filter.....................................................................................48
Pressure Relief Valve Regulator ...............................................49
Troubleshooting ...........................................................................50
Appendix .......................................................................................53
Metal Seal Ring Installation ......................................................53
Cell Cap O-ring and Backup Ring.............................................56
Cell Diagram for Model 2040 ....................................................57
Cell Diagram for Model 2025 ....................................................58
Slurry Cup Diagram ..................................................................59
Potentiometer Diagram .............................................................61
Calibration Stand Diagram........................................................62
Potentiometer Adjustment.........................................................63
Fuses and Breakers..................................................................64
Chart Recorder .........................................................................65
Errors ........................................................................................69
Multiple Instruments..................................................................71
Warranty and Return Policy ........................................................72

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 3
During cementing operations, the time required for a cement slurry to set is
of primary concern. Under an ideal situation, minimal time would be required
to successfully pump the slurry, which immediately upon placement, begins
to develop compressive strength. However, if insufcient time is allowed to
fully pump the cement, it will be necessary to drill the cement remaining in the
casing string. Remedial operations such as this are very costly. Conversely,
cements that are successfully placed, but require considerable time to
cure, consume valuable rig time, which is also quite costly. Laboratory tests
should be conducted under simulated reservoir conditions to examine the
actual thickening time of the slurry. The OFITE HTHP Consistometer was
specically engineered to determine the thickening time of well cements
under simulated downhole pressures and temperatures.
A cement is mixed and poured into the slurry cup assembly. The slurry cup
is placed into the test vessel and pressure is increased via an air-driven
hydraulic pump. A PID temperature controller governs an internal heater,
which maintains the necessary temperature prole, while a magnetic drive
mechanism rotates the slurry cup assembly. A potentiometer controls an
output voltage, which is directly proportional to the amount of torque the
cement exerts upon an API-approved paddle. The included software controls
the instrument and records temperature, pressure, and cement consistency
as a function of time.
- Computerized Data Acquisition and Control system provides detailed test
information in convenient formats and can control multiple units from one
computer. RS-232, and Ethernet connections available.
- Automatic temperature and pressure control
- External cooling jacket aids cooling of test cell
- Automatic, programmable speed motor (0 –300 RPM) powered by a
magnetic drive
- Easy-to-use two-piece lift-off cap for pressure cell
- Drip tray next to cap provides a place to set the cap between tests without
dripping oil on the unit casing
- Convenient oil reservoir features a cap with built-in funnel to help prevent
spills, a removable top and bottom that make cleaning easy, and a sloping
bottom that collects sediment for easy removal
- Visual indicator provides an at-a-glance status update during testing
- Small footprint saves valuable lab space
- Temperature, pressure, and consistency alarms provide automatic
shutdown for safety
- Conforms to API Specication 10 guidelines
- Air/Nitrogen Supply (100 – 120 PSI / 689.5 – 827.4 kPa)
- Water Supply for Cooling (40 PSI / 276 kPa)
- Water Drain
- 220 Volt, 50/60 Hz, 25 Amp electrical power supply
Intro
Description
Features
Requirements

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 4
Specications Size 22.5" × 27.5" × 70"
Weight Approximately 450 lb
Crated Size 26" × 34" × 76"
Crated Weight Approximately 750 lb
Temperature Controller Digital with 0.1° Resolution
Pressure Indicator Digital transducer with 1 PSI (0.1 MPa)
resolution. Analog gauge.
Slurry Cup Variable Speed: 0– 300 RPM
Max Temperature (For tests above 400°F, refer to page 15)
Model 2025 400°F (204.4°C)
Model 2040 600°F (315.5°C)
Maximum Pressure
Model 2025 25,000 PSI (173 MPa)
Model 2040 40,000 PSI (276 MPa)
#120-001 Mineral Oil, 1 Gallon (For tests at or below 400°F)
#120-004 Phenylmethylsiloxane Silicone Fluid, PM-125, 1 gallon (For
tests over 400°F)
#120-00-1 Tool Kit (Includes slurry cup stand, slurry cup tool, lifting
tongs for heater shield, and lifting tongs for potentiometer)
#120-102 Rupture Disk, 28,000 PSI (193 MPa), Model 2025
#120-103 Rupture Disk, 45,000 PSI (310 MPa), Model 2040
#120-148 Retaining Ring for Cap (For Model 2025)
#120-149 O-ring for Cap, Viton (For Model 2025)
#120-201 Thermocouple, Bath (For Model 2040)
#120-203 Thermocouple, Slurry Cup (For Model 2040)
#120-208-1 Thermocouple, Slurry Cup (For Model 2025)
#120-35-004 Backup Ring for Cap (For Model 2025)
#120-35-015 Drip Tray, Stainless Steel
#120-35-033 Air Filter
#120-35-058 Chart Recorder (Optional)
#120-35-132 Oil Filter
#120-40-032 High Pressure Filter
#120-40-033 Filter Element for High Pressure Filter
#120-401 O-ring for Cell Cap, Metal
#120-401-V O-ring for Cell Cap, Viton (For Model 2040. For tests
below 10,000 PSI and below 300°F only.)
#120-35-031 O-ring for Oil Reservoir, Viton
#120-50-037 Air Regular
#120-519 Slurry Cup without Expansion Chamber, Model 2025
#120-521 Slurry Cup with Expansion Chamber, Model 2040
#120-628 Potentiometer Assembly
#120-75-10 Slotted Weight Set
#120-75-9 Weight Hanger
Components

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 5
#130-75-28 Allen Key,   ", 1¼" Long
#130-77-027-1 Pump
#141-28 Hose Kit
#141-15 Air Hose, 6', Qty: 2
#141-19 Air Hose Adapter, Qty: 6
#141-27 Drain Hose, Stainless Steel
#143-01 Gauge, 0 – 200 PSI
#171-45-4 Thermocouple, Bath (For Model 2025)
Potentiometer Components:
#120-602 Calibration Spring
#120-603 Potentiometer Body
#120-604 Potentiometer Resistor
#120-605 Contact Spring
#120-606 Potentiometer Contact Arm
#120-607 Contact Strip
#120-608 Grounding Cable Retaining Screw
#120-609 Grounding Contact Spring
Slurry Cup Components:
#120-501 Slurry Cup Sleeve
#120-502 Molded Diaphragm (For tests at or below 400°F)
#120-40-502 Diaphragm (For tests above 400°F)
#120-502-1 Flat Diaphragm, Buna (For tests below 200°F)
#120-503 Paddle Pin
#120-504 Pivot Bearing
#120-505 Pivot Bearing Gasket
#120-506 Paddle
#120-508 Diaphragm Retaining Ring
#120-509 Drive Disk
#120-510 Drive Bar
#120-512 Drive Pin
#120-513 Gasket for Bottom Cap
#120-514 Drive Disk Set Screw, 6-32 × 3, Stainless Steel
Optional:
#120-35-SP Spare Parts Kit
#120-001 Mineral Oil, 1 Gallon, Qty: 2
#120-102 Rupture Disk, 28,000 PSI, Qty: 2
#120-202 Heater, 4,000 Watt
#120-204 Heater Gaskets, Qty: 2
#120-208-1 Thermocouple for Slurry Cup, Qty: 2
#120-35-031 O-ring for Oil Reservoir, Viton, Qty: 2
#120-401-V O-ring for Cell Cap, Viton, Qty: 12
#120-501 Slurry Cup Sleeve
#120-502 Molded Diaphragm, Qty: 25
#120-503 Paddle Pin, Qty: 12
#120-504 Pivot Bearing, Qty: 6
#120-505 Pivot Bearing Gasket, Qty: 5
#120-506 Paddle for Slurry Cup, Qty: 4
#120-507 Paddle Shaft for Slurry Cup, Qty: 10

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 6
#120-508 Diaphragm Retaining Ring, Qty: 2
#120-509 Drive Disk for Slurry Cup
#120-510 Drive Bar for Slurry Cup
#120-511 Shear Pin for Slurry Cup, Qty: 24
#120-512 Drive Pin for Slurry Cup, Qty: 12
#120-513 Gasket for Slurry Cup, Qty: 6
#120-514 Drive Disk Set Screw, Qty: 10
#120-519 Slurry Cup ASsembly
#120-602 Calibration Spring, Qty: 3
#120-604 Resistor for Potentiometer, Qty: 4
#120-606 Contact Arm for Potentiometer, Qty: 6
#120-607 Contact Strip, Qty: 6
#120-608 Retaining Screw for Grounding Cable
#120-684 Bearing, Bronze, Qty: 2
#122-074-1 Fuse, 5 Amp, 5 mm × 20 mm, Qty: 5
#122-077 Fuse, 10 Amp, 5 mm × 20 mm, Qty: 5
#130-75-28 Allen Key,   ", 1¾" Long, Qty: 2
#120-40-SP Spare Parts Kit
#120-001 Mineral Oil, 1 Gallon, Qty: 2
#120-10-1 Consistometer Tool Kit
#120-103 Rupture Disk, 45-50 KSI, Qty: 2
#120-202 Heater, 4000 Watt
#120-203 Thermocouple, Qty: 2
#120-204 Heaters Gaskets, Qty: 2
#120-401 O-ring for Cell Cap, Metal, Qty: 10
#120-501 Slurry Cup Sleeve
#120-502 Molded Diaphragm, Qty: 25
#120-503 Paddle Pin, Qty: 12
#120-504 Pivot Bearing, Qty: 6
#120-505 Pivot Bearing Gasket, Qty: 5
#120-506 Paddle for Slurry Cup, Qty: 4
#120-508 Diaphragm Retaining Ring, Qty: 2
#120-509 Drive Disk for Slurry Cup
#120-510 Drive Bar for Slurry Cup
#120-511 Shear Pin for Slurry Cup, Qty: 24
#120-512 Drive Pin for Slurry Cup, Qty: 12
#120-513 Gasket for Slurry Cup, Qty: 6
#120-514 Drive Disk Set Screw, Qty: 10
#120-520 Paddle Shaft, 9 ⅛", Qty: 10
#120-521 Slurry Cup with Extension
#120-602 Calibration Spring, Qty: 3
#120-604 Potentiometer Resistor, Qty: 4
#120-606 Potentiometer Contact Arm, Qty: 6
#120-607 Contact Strip, Qty: 6
#120-608 Grounding Cable
#120-684 Bearing, Bronze, Large, Qty: 2
#122-072 Fuse, 1 Amp, 5 mm × 20 mm, Qty: 5
#122-073 Fuse, 2 Amp, 5 mm × 20 mm, Qty: 5
#130-75-28 Allen Key,   ", Qty: 2

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 7
Quick Start
Starting a Test
1. Before turning on the Consistometer, make sure the MOTOR, PUMP,
HEAT, COOL, and AIR TO CYLINDER switches are all off and the
CYLINDER switch is set to DRAIN.
2. Turn the MAIN switch on.
3. Turn the MOTOR switch to MANUAL.
4. Slowly lower the slurry cup into the test cell until the drive table engages
with the drive pins on the bottom.
5. Lower the potentiometer into the test cell so that it sits on top of the slurry
cup.
6. Turn the MOTOR switch to AUTOMATIC.
7. Carefully lower the cell cap into the test cell and tighten it.
If are using a metal o-ring and you tighten the cell cap past the
marked position, you must use a new o-ring for the next test.
8. Plug the thermocouple into the port near the test cell. Insert the
thermocouple into the hole in the top of the cell cap and tighten the thread
gland nger tight and loosen it ¼ of a turn.
9. Close the pressure release valve by turning it clockwise.
10. Turn the CYLINDER switch to FILL. When the cell is full, oil will leak out
of the thermocouple tting on the cell cap. Tighten the tting to seal the
cell.
11. Turn the PUMP switch to AUTOMATIC. Turn the DC VOLT and HEAT
switches on. Turn the COOL switch to AUTOMATIC.
12. Load the test:
a. If you will be using the software to run the test, select a Test Prole
and click the Start Test button on the Main Screen.
b. If you will be using the onboard controls to run the test, rst select a
test to run, then select option 1 “Run/Edit Test” from the Main menu
and press the Scroll Wheel in to start the test. This will start the motor.
13. Push the scroll wheel on the Control Panel to start the test.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 8
Quick Start
Completing a Test
When the test is complete, the red light on the Status Indicator will turn on
and an alarm will sound. To acknowledge the alarm, push the Scroll Wheel.
1. Turn the HEAT, MOTOR, and DC VOLT switches off.
2. When the cell temperature has reached 150°F, turn off the PUMP switch
and slowly open the Pressure Release valve.
Never release pressure while the temperature is above 200°F
(93.3°C).
3. Turn the CYLINDER switch to DRAIN and turn the AIR TO CYLINDER
switch on. This will allow air into the test cell and force the oil back into
the reservoir.
4. When you hear air venting from the Consistometer, turn off the AIR TO
CYLINDER switch.
5. Remove the thermocouple from the cell cap.
6. Unscrew the cell cap and remove it from the test cell.
7. Remove the potentiometer and the slurry cup from the test cell.
8. Turn the COOL switch off.
9. Return the cell cap to the test cell to prevent dust and other material from
entering the cell.
10. Turn the MAIN switch off.

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 9
Instrument
Controls Status
Indicator
Temperature
Controller
Potentiometer
Indicator
Chart
Recorder
(Optional)
Switches
Exit ButtonScroll Wheel
Screen
Thermocouple
Port
Cell Cap
Thermocouple
Storage
Pressure Release Valve Air Pressure
Regulator