fann 415C Manuale utente
©2019 Fann Instrument Company
Model 415C & 415 SGS
HPHT Pressurized Consistometer and
Cement Consistometer with Gel Strength Analyzer
Instruction Manual
Manual No. D01669102, Revision A
Instrument No. 102547776, 102538946
D01669102 April 2019, Revision A 2
Model 415C & 415 SGS Instruction Manual
©2019 Fann Instrument Company
Houston, Texas, USA
All rights reserved. No part of this work covered by the copyright hereon may be reproduced or
copied in any form or by any means (graphic, electronic, or mechanical) without first receiving the
written permission of Fann Instrument Company, Houston, Texas, USA.
Printed in USA.
The information contained in this document includes concepts, methods, and apparatus which may be
covered by U.S. Patents. Fann Instrument Company reserves the right to make improvements in
design, construction, and appearance of our products without prior notice.
FANN® and the FANN logo are registered trademarks of Fann Instrument Company in the United
States and/or other countries. All other trademarks mentioned in the operating instructions are the
exclusive property of the respective manufacturers.
Contact Fann Instrument Company
Phone 1-281-871-4482
1-800-347-0450
Fax 1-281-871-4358
Postal Address Fann Instrument Company
P.O. Box 4350
Houston, Texas, 77210 USA
Shipping Address Fann Instrument Company
14851 Milner Road, Gate 5
Houston, Texas, 77032, USA
Online www.fann.com
Model 415C & 415 SGS Instruction Manual
D01669102 April 2019, Revision A 3
Table of Contents
1 Introduction ................................................................................................................ 5
1.1 Model 415C ....................................................................................................... 5
1.2 Model 415SGS .................................................................................................. 6
1.3 Document Conventions ..................................................................................... 7
2 Safety ......................................................................................................................... 8
2.1 Safe Pressurization ............................................................................................ 8
2.2 Safe Heating ...................................................................................................... 8
2.3 Safe Electrical Operation ................................................................................... 8
3 Specifications ............................................................................................................. 9
4 Installation ................................................................................................................ 10
4.1 Air and Water Cooling Connections ................................................................. 10
4.2 Electrical Connections and Control Box .......................................................... 10
4.3 Pressure Vessel Installation ............................................................................ 12
5 Hydraulic, Pneumatic, Cooling and Electronic Controls ........................................... 13
5.1 Hydraulic Pressure Controls ............................................................................ 13
5.2 Pneumatic Controls ......................................................................................... 13
5.3 Electronic Controls and Displays ..................................................................... 14
6 Using the Touchscreen Software ............................................................................. 15
6.1 What is a touch screen and how does it work? ............................................... 15
6.2 Using the Touch Screen .................................................................................. 15
6.3 What can you do with the touch screen software? .......................................... 15
6.4 One Key Recovery for the Computer ............................................................... 15
6.5 Software Upgrades .......................................................................................... 16
6.6 Using the USB Port and the Printer ................................................................. 16
6.7 The Main Menu ................................................................................................ 17
6.8 Instrument Setup ............................................................................................. 18
6.9 Test Setup ....................................................................................................... 27
6.10 Start Test ......................................................................................................... 32
6.11 Live Testing Screen ......................................................................................... 33
6.12 View Test ......................................................................................................... 33
7 Operation ................................................................................................................. 35
7.1 Running a Thickening Time Test ..................................................................... 35
7.2 Stopping a Thickening Time Test .................................................................... 36
7.3 Thermocouple Retainer ................................................................................... 37
Model 415C & 415SGS Instruction Manual
D01669102 April 2019, Revision A 4
7.4 Removing Slurry Cup Plug from Pressure Vessel ........................................... 38
7.5 Slurry Removal ................................................................................................ 39
8 Maintenance and Troubleshooting ........................................................................... 41
8.1 Slurry Cup Bottom Removal and Reinstallation ............................................... 41
8.2 Paddle Shaft and Paddle ................................................................................. 42
8.3 Slurry Cup Plug Disassembly and Reassembly .............................................. 43
9 Warranty and Returns .............................................................................................. 48
9.1 Warranty .......................................................................................................... 48
9.2 Returns ............................................................................................................ 48
Model 415C & 415SGS Instruction Manual
D01669102 April 2019, Revision A 5
1 Introduction
1.1 Model 415C
Model 415C pressurized consistometer is able to test cement slurries at
temperatures up to 400ºF/204ºC and pressures to 15,000 psig / 103 MPa. The
instrument is designed to perform thickening time tests in accordance with API
specifications and recommended practices. If the instrument is also fitted with gel
strength testing software it also is designed to perform static gel strength tests in
accordance with API specifications. The consistometer slurry cup assembly uses a
rotating paddle and a stationary cylindrical slurry cup assembly / pressure vessel.
Pressure is applied to the vessel using mineral oil and an air driven hydraulic pump.
A 1500-watt heater surrounding the slurry cup outside the pressure vessel supplies
heat to the pressure chamber. A sidewall thermocouple is provided for determining
the temperature of the cement slurry.
The slurry cup paddle is rotated through the use of an electric motor and a magnetic
drive unit. The rotational speed of the slurry cup is set to the API prescribed speed
of 150 rpm. Variable speed option is available for testing at RPM’s from .0005 to
250.
The consistency of the cement slurry is measured through a servo motor which
monitors the torque applied to the paddle in maintaining a constant rpm. The
rotational force is proportional to the consistency of the cement slurry and is
measured through the servo drive and customized software. The consistency is
indicated and displayed on a plot generated by the data acquisition system (DAQ).
The consistency values are recorded in Bearden Units of consistency (Bc).
Fann pressurized consistometers are equipped with a state-of-the-art temperature
controller and data acquisition system that provides unparalleled ease of use for the
operator. The parameters of interest may be displayed in either English or SI units.
Temperature control and data acquisition are programmed through the use of a
touch screen monitor. A separate PC and keyboard/mouse are not required but can
be attached for added functionality. The plots may also be downloaded to a USB
flash drive or network folder for transfer to a separate computer.
The equation for consistency as a function of torque (g-cm) is Bc = .05 x T - 3.91.
So at a torque value of zero it's at least theoretically possible for the Bc be negative.
In reality, the torque can never be zero. Even if there is air in the slurry cup there
will be some drag on the paddle from friction, etc. When instruments only had
voltmeters in the past, there was no way to ever make the Bc negative since the
voltage was never negative. Now that computers have data scaling, they can be
calibrated to indicate almost anything. The API consistency equation clearly states
that consistency could start negative on ultra-thin slurries.
Model 415C & 415SGS Instruction Manual
D01669102 April 2019, Revision A 6
1.2 Model 415SGS
Model 415SGS combines thickening time and static gel strength testing into one
compact, easy to use, simple to maintain unit. Model 415SGS represents the easiest
to operate and most reliable static gel strength tester in the industry. This additional
gel static gel strength determination software package is designed to perform static
gel strength tests in accordance with API specifications.
The static gel strength of cement slurry is measured using a standard paddle and
with the same configuration as a thickening time test. This makes transitioning
from thickening time to static gel strength testing instantaneous, simulating real-
world downhole conditions. The paddle is held in a virtually stationary position
allowing for extremely precise direct measurement of static gel strength
development in real time.
Model 415SGS represents the new standard for static gel strength measurement and
is backed by over 20 years of proven research and results. The portable
combination of API thickening time tester and static gel strength determination
make his an economical and powerful tool for any laboratory.
Critical static gel strength (CSGS) is the specific static gel strength of a cement in
which hydrostatic-pressure equilibrium is reached between the decayed hydrostatic
pressure transmission of the cement column (and other fluids in the annulus) and
the pore pressure of the formation. CSGS is measured in pascals or newtons per
square meter (pounds force per 100 square feet).
Critical static gel strength period is the time interval required for the cement to
progress from the CSGS to a static gel strength of 250 Pa (500 lbf/100 ft2). Static
gel strength (SGS) is the shear strength (stress) measurement derived from force
required to initiate flow of a fluid. Also measured in pascals or newtons per square
meter (pounds force per 100 square feet).
The apparatus contains a pressure chamber that can be heated and pressurized
according to a simulated cement job schedule. The SGS is calculated from the
torque required to rotate a paddle of known geometry at very low speed. The
rotation speed of the paddle during the SGS measurement portion of the test is
normally a continuous
0.0000092 r/s (0.2°/min). The initial stirring to simulate placement in the well is
typically conducted at 2.5 r/s ± 0.25 r/s (150 r/min ± 15 r/min). The permissible
range of rotational speed for the apparatus is 0.0000069 r/s to 0.0000231 r/s.
Model 415C & 415SGS Instruction Manual
D01669102 April 2019, Revision A 7
1.3 Document Conventions
The following icons are used as necessary in this instruction manual.
NOTE. Notes emphasize additional information that may be
useful to the reader.
CAUTION. Describes a situation or practice that requires operator
awareness or action in order to avoid undesirable consequences.
MANDATORY ACTION. Gives directions that, if not observed,
could result in loss of data or in damage to equipment.
WARNING! Describes an unsafe condition or practice that if not
corrected, could result in personal injury or threat to health.
ELECTRICITY WARNING! Alerts the operator that there is risk of
electric shock.
HOT SURFACE! Alerts the operator that there is a hot surface and
that there is risk of getting burned if the surface is touched.
EXPLOSION RISK! Alerts the operator that there is risk of
explosion.
Model 415C & 415 SGS Instruction Manual
D01669102 April 2019, Revision A 8
2 Safety
Safe laboratory practices and procedures should be observed while operating and
maintaining the Model 422 & 422CC. Follow the instructions provided to avoid
personal injuries or damage to the equipment.
Always wear appropriate personal protective equipment (PPE) when operating or
maintaining the Consistometer.
2.1 Safe Pressurization
This Consistometer has pressurized air, water, and hydraulic lines that present a
hazard if not depressurized before maintenance or disassembly.
The hydraulic diaphragm pump and the pressure relief valve require compressed
air. Before working on any of these devices or connected air lines, shut off the
compressed air supply to the machine, and carefully relieve air pressure from the
machine.
2.2 Safe Heating
Before opening the pressure chamber, use the cooling system to lower the
temperature to at least 120°F (49°C). The machine uses domestic water as coolant.
Shut off the domestic water supply before servicing.
NEVER operate the heater on an empty chamber. The heater element will quickly
overheat and fail. To prevent smoke and possible fire, always fill the chamber and
pressurize before heating.
2.3 Safe Electrical Operation
Disconnect the power cable before attempting any electrical or mechanical
maintenance. Be aware that after the power switch is turned off, the electrical
terminals inside the panel will remain electrically energized.
Refer to the electrical schematic before performing any maintenance or
troubleshooting.
Always disconnect the power cable before attempting any repair.
Model 415C & 415 SGS Instruction Manual
D01669102 April 2019, Revision A 9
3 Specifications
Table 3-1 415C & 415SGS Specifications
Category Specification
Electrical
Input Voltage 230 VAC (+10%)
Current 10A
Input Frequency 50-60Hz
Mechanical
Height 15 in. (38 cm)
Width (single) 26 in. (67 cm)
Depth 15 in. (38 cm)
Weight (single) 150 lb. (68 kg)
Environmental
Operating Temperature (32º to 105º F) 0-40º C
Operating Humidity 0-95% noncondensing
Heater
Heater Power 1500W
Utilities – Water and Air
Compressed Air 80 - 150 psig (5.4 – 10.2 bar); Must be water
separated and filtered.
Cooling Water Pressure 100 psig (6.8 bar) maximum; Must be filtered and
sediment free.
Utility Inlets ¼ inch MNPT (1): max 120psi, dry
Model 415C & 415 SGS Instruction Manual
D01669102 April 2019, Revision A 10
4 Installation
Upon uncrating the instrument, verify that the instrument and any spare parts on the
packing list have been received and are undamaged.
4.1 Air and Water Cooling Connections
Once the instrument has been moved to its desired location, air, water, and
electrical connections can be made. The air inlet, coolant inlet and drain
connections are each ¼ inch female NPT connections and are located at the rear of
the instrument. ¼ inch compression tube fittings and 5/8” hose barb fittings and
associated tubing are included for your convenience. You may select either
depending on your preference.
Connect the coolant to the connector labeled Coolant Supply on the rear panel of
the instrument. The water or coolant must be clean and free of debris, sediment,
minerals, etc. that could cause major scaling, blockage, premature wear, or
malfunction. Use of a heavy-duty water filter is required. Do not use a corrosive
coolant mixture or any liquid that could damage copper, stainless steel, plastic or
Teflon.
4.1.1 Connecting the Drain Line
Connect the drain line to the connector labeled Coolant Drain on the rear panel of
the instrument. The drain system must be capable of handling hot water up to 212
ºF (100 ºC) or brief surges of up to 400 º F (204 º C) steam for short periods of time
during initial cooling of the instrument. If two or more RP Consistometers are
connected to a common drain line, it is recommended that the drain be 3/8 inch
(10mm) inside diameter, minimum. It is also recommended that the drain system
be all metal.
Connect the air supply to the connector labeled AIR on the rear panel of the
instrument. The air is required to be dry and free from dirt and oil. The air should
be supplied at a pressure of 80-150 psig (5.4 – 10.2 bar). The compressed air
supply is required to be free from moisture and contamination of any kind. A
heavy-duty filter is required to prevent premature wear, scaling, blockage or
malfunction.
4.2 Electrical Connections and Control Box
Electrical connections are made using the receptacle on the rear of the instrument.
A power cord is supplied with the instrument. Please observe the following
precautions when making the wiring connections.
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