fann 210194 User manual

Fann Instrument Company
Stirring Fluid Loss
Manual
Manual 100031980, Revision F
Instrument No. 210194

100031980 Revision F 2
Stirring Fluid Loss Manual
©2022 Fann Instrument Company
Houston, Texas, USA
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Stirring Fluid Loss Manual
100031980 Revision F 3
Table of Contents
1Introduction.....................................................................................................7
1.1 Document Conventions...........................................................................8
2 Safety..............................................................................................................9
2.1 Safe Pressurization .................................................................................9
2.2 Safe Heating............................................................................................9
2.3 Safe Electrical Operation.......................................................................10
2.4 Safe Test Cell Maintenance ..................................................................10
3 Features and Specifications..........................................................................11
3.1 Stirring Fluid Loss Mechanical...............................................................13
3.2 Stirring Fluid Loss Controls ...................................................................15
4 Installation.....................................................................................................19
5 Operation......................................................................................................20
5.1 Pre-test the Instrument..........................................................................20
5.2 Load the Sample Chamber....................................................................22
5.3 Preheat the Sample Chamber...............................................................23
5.4 Start the Stirring Fluid Loss Test...........................................................25
5.5 End the Stirring Fluid Loss Test ............................................................26
5.6 Disassemble and Clean Equipment ......................................................28
5.7 Reassemble Equipment ........................................................................28
6 Test Analysis ................................................................................................30
6.1 References............................................................................................30
6.2 Results ..................................................................................................30
6.3 Variations ..............................................................................................30
6.4 Filtrate Volume......................................................................................30
6.5 Calculations...........................................................................................31
6.6 Reporting...............................................................................................31
7 Troubleshooting and Maintenance................................................................32
7.1 Preventive Maintenance........................................................................32
7.2 Packing Replacement ...........................................................................32
7.3 Temperature Controller and Heating Jacket..........................................33
7.4 Pressure and Motor Check....................................................................34
7.5 Filtrate Condenser.................................................................................35
7.6 Troubleshooting.....................................................................................36
8 Parts List.......................................................................................................38

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9 Warranty and Returns...................................................................................56
9.1 Warranty................................................................................................56
9.2 Returns..................................................................................................56

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List of Figures
Figure 3-1 Stirring Fluid Loss Assembly........................................................................12
Figure 3-2 Paddle Shaft and Cell Cap...........................................................................14
Figure 3-3 Reservoir components .................................................................................14
Figure 3-4 Filtrate Condenser Chamber, Standard........................................................15
Figure 3-5 Filtrate Condenser Chamber, Back Pressure...............................................15
Figure 3-6 Electrical Controls........................................................................................16
Figure 3-7 Pressure and Coolant Controls ....................................................................17
Figure 4-1 Back Panel...................................................................................................19
Figure 5-1 Flexible Drive Shaft......................................................................................21
Figure 5-2 Brass Spacer and O-ring in Sample Chamber..............................................22
Figure 5-3 Screen and O-ring in Sample Chamber........................................................23
Figure 5-4 Thermocouple inserted in sample cell..........................................................24
Figure 5-5 Filtrate Unit connected to the Sample Chamber...........................................25
Figure 5-6 Coolant Valve open for water flow................................................................26
Figure 5-7 Coolant Valve in off position.........................................................................27
Figure 5-8 Coolant Valve open for air flow.....................................................................27
Figure 8-1 Stirring Fluid Loss Assembly........................................................................39
Figure 8-2 Electrical Diagram, 278.00267 Rev N...........................................................42
Figure 8-3 Mainframe Assembly, Front View.................................................................44
Figure 8-4 Mainframe Assembly, Rear View .................................................................45
Figure 8-5 Heating Jacket Assembly Schematic, Part 1 of 2 .........................................47
Figure 8-6 Heating Jacket Assembly Schematic, Part 2 of 2 .........................................48
Figure 8-7 Chamber Assembly......................................................................................50
Figure 8-8 Manifold System, Water/Nitrogen.................................................................52
Figure 8-9 Filtrate Chamber Assembly, Standard..........................................................54
Figure 8-10 Filtrate Chamber Assembly, Back Pressure...............................................55

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100031980 Revision F 6
List of Tables
Table 3-1 Stirring Fluid Loss Test Assembly Specifications...........................................13
Table 7-1 Preventive Maintenance Schedule ................................................................32
Table 7-2 Troubleshooting Guide..................................................................................36
Table 8-1 Stirring Fluid Loss Assembly, 50/60 Hz, P/N 210194, Revision F..................38
Table 8-2 Electrical Diagram, 50/60 Hz, 100052157, Rev Q..........................................40
Table 8-3 Mainframe Assembly 50/60 Hz, 100052153, Rev G......................................43
Table 8-4 Heating Jacket Assembly, P/N 100052154, Revision G.................................46
Table 8-5 Chamber Assembly, 100020388, Rev D........................................................49
Table 8-6 Manifold System, Water/Nitrogen, P/N 100052155, Revision J .....................51
Table 8-7 Tool Kit & Instruction Manual, P/N 100052158, Revision C...........................53
Table 8-8 Filtrate Chamber Assembly, Standard, P/N 100020390, Revision D..............54
Table 8-9 Filtrate Chamber Assembly, Back Pressure, P/N 100020356, Revision B.....55

Stirring Fluid Loss Manual
100031980 Revision F 7
1 Introduction
The Stirring Fluid Loss Assembly simulates filtration at downhole conditions in a
wellbore. This test instrument determines the volume of fluid loss (filtrate) from a
cement slurry, water-based mud or fracturing fluid at a set temperature and pressure.
The test results are used to evaluate the fluid-loss control properties.
By controlling the fluid loss during cementing operations, the cement job will be
more successful. Adding various chemicals to a cement slurry will minimize fluid
loss. If fluid is lost, then cement viscosity and hydration rate will increase and
circulation rate will decrease.
The advantage of this instrument is that slurry preconditioning and testing are
performed in the same cell, eliminating the need to cool or transfer hot test slurry,
possibly changing the properties of the test slurry.
The Stirring Fluid Loss Assembly is designed for conformance with relevant
standards and practices as published by API Subcommittee 10 on Well Cements.

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100031980 Revision F 8
1.1 Document Conventions
The following icons are used in this manual as necesary.
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.

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100031980 Revision F 9
2 Safety
Safe operation of the Stirring Fluid Loss Test Assembly requires the operator
understand and practice the correct assembly and operation of the equipment.
Improper assembly, operation, or the use of defective parts increases the likelihood of
cell leakage or failure, which could result in serious injury and damage.
The slurry sample cell (reservoir) and the heating jacket are hot during operation.
The operator should be aware of these hot areas and avoid contact with them. Burns
can result from touching hot parts of the equipment during normal operation.
These instruments are electrically heated. As with any electric device, the wiring
should be regularly checked for bad connections. These instruments should always be
used on a grounded circuit.
The following sections discuss practices that should be observed to assure safe
operation and maintenance of the Stirring Fluid Loss Test Assembly.
2.1 Safe Pressurization
The Stirring Fluid Loss Test Assembly uses nitrogen gas to pressurize and
compressed air to cool. Nitrogen must be supplied in an approved nitrogen gas
cylinder or the nitrogen supply system must be built into the laboratory. Nitrogen
cylinders must be secured to meet safety standards.
Maintain pressure regulators in good condition. Never use oil on pressure regulators.
Leaking pressurizing systems should be repaired or replaced. Gauges, fittings and
hoses should be kept in good condition and any leaks should be promptly located and
corrected.
When pressurizing the cell, always open the supply pressure first, and then adjust the
regulator. Do not attempt to pressurize higher than the equipment is rated. When de-
pressurizing, shut off the supply pressure, bleed the system of pressure, and then back
out the regulator knob.
2.2 Safe Heating
Caution should be exercised by all personnel using the Stirring Fluid Loss Test
Assembly or working nearby to avoid accidental injury caused by touching the test
cell (reservoir) or heating jacket while it is hot. Safeguard the equipment after the test
ends long enough for it to cool. Even after the instrument has been turned off, it can
still be hot enough to cause burns.

Stirring Fluid Loss Manual
100031980 Revision F 10
2.3 Safe Electrical Operation
Make sure the electrical source is fused and grounded. Verify the power cord on the
instrument is in good condition and that it has the proper ground connection.
Electrical problems may not be obvious by looking at the equipment. If the unit blows
fuses or trips breakers, the heating time seems longer than normal or the temperature
controller does not reliably maintain temperature, then electrical repair may be
required. Refer to Section 7 Troubleshooting and Maintenance.
Always disconnect the power cable before attempting any repair.
2.4 Safe Test Cell Maintenance
The test cell (reservoir or sample chamber) and paddle cap constitute a pressure
vessel. These safety precautions should be followed to assure safe operation:
1. The cell body and cap material should be compatible with the test sample.
2. Cell bodies with cracks, severe pitting, or damaged threads must not be used.
3. Cell caps with damaged threads, paddle shaft, or blades must not be used.

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100031980 Revision F 11
3 Features and Specifications
The Stirring Fluid Loss Test Assembly is equipped with a stirrer to simulate
circulation and a heating jacket to simulate the bottomhole circulating temperature
(BHCT). The pressure differential between annular and formation pressure is
simulated by pressurized nitrogen. A 325 micron mesh screen (or a porous core) and
a filtration chamber simulate the permeable zone. A control panel allows precise
setting and controlling of the temperature and pressure.
Operators use this instrument to perform standard tests outlined in the American
Petroleum Institute (API) Recommended Practice (RP) for Testing Well Cements,
API RP 10B-2.
The instrument is shown in Figure 3-1 with labels identifying its components. Refer
to Table 3-1 for the instrument specifications. The following sections describe its
features in detail.

Stirring Fluid Loss Manual
100031980 Revision F 12
Figure 3-1 Stirring Fluid Loss Assembly
Heating Jacket
Pressure Gauges
(2)
Master Power
Switch
Timer &
Timer Switch
Temperature
Controller
Stirrer Motor
Switch
Heater
Switch
Nitrogen Valves
(2)
Pressure
Regulator
Coolant Valve
Flexible
Drive Shaft
Filtrate
Condenser
Chamber
Rotating
Latch

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100031980 Revision F 13
Table 3-1 Stirring Fluid Loss Test Assembly Specifications
Category
Specification
Maximum Temperature
400°F (204°C)
Maximum Pressure
2,000 psi (13.8 MPa)
Pressure Required
1,500 psi (10.3 MPa), Nitrogen gas
Filtering Area
3.5 in2(22.6 cm2)
Sample Chamber (1)
Diameter x Length (excludes
valves)
3.25 x 12.0 in
8.26 x 30.5 cm
Volume (maximum fluid capacity)
701 mL
Weight (chamber and cell caps)
17.0 lb (7.71 kg)
Frame
Depth x Width x Height
28.0 x 24.0 x 23.5 in
71.1 x 61.0 x 59.7 cm
Weight
283 lb (128 kg)
Pressure Connection
Nitrogen, 1/8 Female NPT
Air Inlet Connection
1/4 Female NPT
Water Inlet & Drain Connections
1/4 Female NPT
Voltage and Current
50–60 Hz
230 VAC, 9A
3.1 Stirring Fluid Loss Mechanical
A durable, stainless steel, base plate and frame supports the heating jacket and sample
chamber and also houses built-in features - pressure and coolant controls, a
temperature controller and a digital timer. Refer to Figure 3-1.
3.1.1 Paddle Cap Assembly
The paddle cap assembly, which is the stirring apparatus, consists of a paddle shaft
with paddles that connect to cell cap. The cell cap has a pressure supply valve to
allow pressure to flow in and out of the cell. See Figure 3-2.

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100031980 Revision F 14
Figure 3-2 Paddle Shaft and Cell Cap
3.1.2 Sample Chamber
The sample chamber (cell or reservoir) is where the slurry sample is added and stirred
at set temperature and time (conditioning). The paddle cap assembly is inserted into
the sample chamber. The sample chamber is inserted into the heating jacket and held
securely with a locking plate.
Figure 3-3 Reservoir components
3.1.3 Filtrate Condenser Chamber
The filtrate condenser chamber (filtrate unit) attaches to the cell cap. Fluid flows
through a 325 mesh screen that is on the cap and through the filtrate unit, where it is
cooled. The screen and filtrate chamber simulate a permeable zone. The filtrate
condenser chamber and cooling system keep the filtrate from turning into steam when
the test temperatures are 200oF (95oC) or greater.
The Stirring Fluid Loss Assembly comes with two filtrate condenser chambers —a
standard unit and a back pressure unit with external copper tubing. See Figures 3-4
and 3-5 for the standard chamber and the back pressure chamber, respectively.
Sample Chamber
Cell Cap
Paddle Cap Assembly
Brass Ring, O-rings and
Filter Screen

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100031980 Revision F 15
The back pressure unit is necessary when testing cement slurry containing salt at test
temperatures greater than 212oF (100oC).
If back pressure is not applied, the filtrate will flash to steam when exiting the fluid
loss cell and the salt will plug the small capillary tube that goes through the standard
filtrate condenser. The test results will indicate that the slurry has an extremely low
fluid loss when it may actually be high.
When the back pressure receiver is used, the filtrate never goes to steam. Instead
pressure is maintained on the back pressure receiver to keep the filtrate as a liquid. In
the back pressure receiver, the filtrate is cooled below the boiling point.
Figure 3-4 Filtrate Condenser Chamber, Standard
Figure 3-5 Filtrate Condenser Chamber, Back Pressure
3.2 Stirring Fluid Loss Controls
The control panel is divided into two sections –electrical controls on the left and
pressure and coolant controls on the right.

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100031980 Revision F 16
3.2.1 Electrical Controls
The electrical controls and their functions are described below.
•Master Power Switch (Master) controls all the electrical power to the different
controls.
•Temperature Controller (Temperature Control) controls the rate of the
temperature rise (ramp) and the final set point temperature of the test slurry. See
Section 5 for complete operating instructions. A Type J thermocouple must be
used to measure the temperature.
•Motor Switch and Fuse (Motor/2Amp) supplies power to the paddle drive
motor that is mounted behind the panel.
•Timer is an elapsed timer used to time the test duration, stirring time and fluid
loss duration. A switch turns the timer on and off.
•Heater Switch controls power to the heater.
Figure 3-6 Electrical Controls

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100031980 Revision F 17
3.2.2 Pressure and Coolant Controls
Fluid loss tests performed with the provided reservoir should not
be performed with pressures exceeding 1,500 psi (6.9 MPa).
The pressure and coolant controls and their features are described below.
Figure 3-7 Pressure and Coolant Controls
•Supply Pressure gauge measures the supply pressure.
•Chamber Pressure gauge measures the pressure in the chamber.
•Nitrogen Supply Valve (N2Supply) is the main nitrogen supply valve for the
complete gas pressure system. The gauge registers incoming nitrogen pressure
from the supply valve.
•Nitrogen Vent Valve (N2Vent) relieves all pressure from nitrogen
manifolding and test chamber during operating procedures.
•Pressure Regulator regulates nitrogen pressure to the test chamber.
•Coolant Valve controls coolant flow to filtrate unit and heating jacket upon test
completion. The three-way valve allows water or air to flow through. The valve
positions are
oH2O Cool for water flow; arrow points to the right

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100031980 Revision F 18
oAir Cool for air flow; arrow points to the left
oOff to shut off; arrow points up

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100031980 Revision F 19
4 Installation
The Stirring Fluid Loss Test Assembly can generally be placed to suit the available
space and the desires of the lab personnel, consistent with established work processes.
Some environments encourage a right-to-left flow, while others are left-to-right.
Consideration should be given to the location of the sample preparation area and
cleaning the cells following test completion.
The pressurizing system may also dictate installation-specific requirements, such as
having a large compressed gas cylinder secured nearby.
There should be sufficient storage area for commonly used tools and consumable
items.
Customer installed wiring, electrical connectors, and power cords
are excluded from the warranty.
A Fann representative is available to install and set-up the instrument if necessary.
Figure 4-1 Back Panel

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100031980 Revision F 20
5 Operation
This section gives detailed instructions on operating the instrument. The following
sections describe how to
•Pre-test the Instrument
•Load the Sample Chamber
•Pre-heat the Sample Chamber
•Start the Stirring Fluid Loss Test
•End the Stirring Fluid Loss Test
•Disassemble and Clean the Equipment
•Reassemble the Equipment
5.1 Pre-test the Instrument
1. Arrange sample chamber (also called reservoir, cylinder, or test cell) parts for
assembly. Check all O-rings for nicks, abrasions, cement debris and brittleness.
Replace damaged O-rings.
2. Lubricate threads and O-rings with heavy grease to make cleanup easier after
testing is complete.
3. Check the filter screen for plugging or holes in the support plate.
4. Spin the paddle and shaft, listen for grinding sound, and feel for tightness. Refer
to Section 7 Troubleshooting and Maintenance for servicing, if required.
5. Screw paddle cap assembly in one end of the sample chamber and hand-tighten.
Paddle cap assembly should be as nearly flush as possible with chamber end.
6. Insert sample chamber (open end first) into the heating jacket.
7. Rotate the chamber slowly clockwise to ensure the notches engage the screws on
heating jacket end.
8. Make sure the nitrogen pressure port on the sample chamber points away from
you. If not, lift chamber slightly and rotate it a half turn, and recheck.
9. Swing locking plate into position to hold chamber in heating jacket. Use hand
knob to tighten.
10. Attach supply pressure line that is coiled on heating jacket mount to the coupling
on the side of the paddle cap assembly. Hand-tighten only.
11. To release heating jacket, pull the red knob and rotate the heating jacket 180
degrees. Pushing the knob latches the heating jacket in its new position.
12. Rotate the paddle shaft to same position as flexible drive shaft.
13. Attach flexible drive shaft into position and hand-tighten the flexible shaft collar.