fann 100072577 User manual

Cement Curing Autoclave
User Manual
100072577
Revision H

Cement Curing Autoclave User Manual
©2015 Fann Instrument Company
Houston, Texas, USA
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Cement Curing Autoclave User Manual
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Contents
1Introduction.............................................................................................................1
1.1 Cement Curing Autoclave ................................................................................... 1
1.2 Function............................................................................................................... 1
1.3 Features................................................................................................................ 2
2Safety.......................................................................................................................4
2.1 Machine Hazards ................................................................................................. 4
2.2 Ergonomic Considerations................................................................................... 5
3Features and Specifications ..................................................................................6
3.1 Cement Curing Autoclave Mechanical................................................................ 6
3.2 Cement Curing Molds.......................................................................................... 7
3.3 Cement Curing Autoclave Controls and Indicators............................................. 9
3.4 Temperature Controller Configuration.............................................................. 10
3.5 Pressurizing the Cement Curing Autoclave....................................................... 24
4Installation.............................................................................................................26
4.1 Parts of the Cement Curing Autoclave.............................................................. 26
4.2 Other Parts ......................................................................................................... 26
4.3 Locating the Cement Curing Autoclave ............................................................ 26
4.4 Electric Power Supply ....................................................................................... 26
5Operation...............................................................................................................28
5.1 Sample Preparation............................................................................................ 28
5.2 Prepare the Cube Mold ...................................................................................... 28
5.3 Prepare the Cement Slurry................................................................................. 32
5.4 Fill the Molds..................................................................................................... 32
5.5 Place molds into chamber.................................................................................. 35
5.6 Place chamber in heating jacket......................................................................... 39
5.7 Pressurize the chamber ...................................................................................... 41
5.8 Running a test .................................................................................................... 41
5.9 Ending the test ................................................................................................... 43
5.10 Remove the chamber ......................................................................................... 43
5.11 Cleaning the molds, pressure chamber, and autoclave...................................... 44
6Analyzing Results.................................................................................................45
7Troubleshooting and Maintenance......................................................................46

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7.1 Eurotherm 2404 Temperature Calibration......................................................... 46
7.2 Troubleshooting Tables ..................................................................................... 46
8Accessories ..........................................................................................................50
8.1 Hand Pressure Pump.......................................................................................... 50
9Parts Lists.............................................................................................................51
10 Warranty and Returns ..........................................................................................66
10.1 Warranty ............................................................................................................ 66
10.2 Return of Items .................................................................................................. 66

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List of Figures
Figure 1-1 Cement Curing Autoclave, front view .............................................................2
Figure 1-2 Cement Curing Autoclave, back view............................................................3
Figure 3-1 Manual Needle Valve and Pressure Relief Valve ........................................7
Figure 3-2 Pressure Manifold, Thermocouple, Pressure Gauge.....................................7
Figure 3-3 Cement Mold..................................................................................................8
Figure 3-4 Cement Mold Clamp.....................................................................................8
Figure 3-5 Cement Mold Base.........................................................................................9
Figure 3-6 Temperature Controller, Main Power, Heat switch .......................................10
Figure 3-7 Water Expelled as Lid is Closed...................................................................24
Figure 3-8 Pressure source connected to needle valve.................................................25
Figure 3-9 Initial pressure (left), increased pressure from temperature rise (right).........25
Figure 5-1 Pins align the mold halves............................................................................28
Figure 5-2 Clamps hold mold halves together ...............................................................29
Figure 5-3 Grease mold for base plate..........................................................................30
Figure 5-4 Tighten base plate to mold...........................................................................30
Figure 5-5 Grease mold interior.....................................................................................31
Figure 5-6 Mixing Cement Slurry...................................................................................32
Figure 5-7 Filling mold..................................................................................................33
Figure 5-8 Leveling cement..........................................................................................33
Figure 5-9 Grease cover plate......................................................................................34
Figure 5-10 Cover plate.................................................................................................34
Figure 5-11 Lower mold into chamber – 1....................................................................35
Figure 5-12 Lower mold into chamber – 2....................................................................35
Figure 5-13 Grease chamber threads...........................................................................36
Figure 5-14 Tighten lid ..................................................................................................37
Figure 5-15 Water expelled as lid tightened ..................................................................37
Figure 5-16 Handle spring loaded pin retracted.............................................................38
Figure 5-17 Handle and manifold on chamber...............................................................38
Figure 5-18 Place chamber into autoclave, remove handle...........................................39
Figure 5-19 Attach valve and manifold ..........................................................................40

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Figure 5-20 Connect thermocouple cable......................................................................40
Figure 5-21 Set initial chamber pressure.......................................................................41
Figure 5-22 Initial pressure (left), increased pressure from temperature rise (right).......42
Figure 7-1 Power fuse holders ......................................................................................47
Figure 8-1 101443558 PUMP ASSY HYD CEMENT CURING AUTOCLAVE, HAND
OPERATED ................................................................................................50
Figure 9-1 100053968 – Installation, Chamber Assembly, Standard, 1200ML, 2 Cube.51
Figure 9-2 101443558 A PUMP ASSY HYD CEMENT CURING AUTOCLAVE, HAND
OPERATED ................................................................................................53
Figure 9-3 100053968 Kit, Installation, Tools & Manual (not shown), Autoclave,
Standard, 1200ml........................................................................................55
Figure 9-4 Assembly, Cement Curing Autoclave...........................................................56
Figure 9-5 Electrical Schematic – 115V Cement Curing Autoclave................................64
Figure 9-7 Electrical Schematic – 230V Cement Curing Autoclave................................65

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List of Tables
Table 3-1 Cement Curing Autoclave Specifications ......................................................6
Table 7-1 Problems with General System....................................................................47
Table 7-2 Temperature Problems ................................................................................48
Table 7-3 Pressure Problems ......................................................................................48
Table 7-4 Chamber Lid Problems ................................................................................49
Table 9-1 100053968 NX INSTALLATION, CHAMBER ASSEMBLY, STANDARD,
1200ML, 2 CUBE........................................................................................52
Table 9-2 101443557 A PUMP ASSY HYD CEMENT CURING AUTOCLAVE, HAND
OPERATED ................................................................................................54
Table 9-3 101497200 K CEMENT CURING AUTOCLAVE 115V TWO 2-INCH CUBE
MOLDS.......................................................................................................57
Table 9-4 101533369 J CEMENT CURING AUTOCLAVE 230V TWO 2-INCH CUBE
MOLDS.......................................................................................................60

Cement Curing Autoclave User Manual
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1 Introduction
1.1 Cement Curing Autoclave
The Cement Curing Autoclave is an apparatus used to cure cement slurry
samples under elevated hydrostatic pressure and temperature. The cement
slurry samples are contained in one or two 2 inch cube molds, surrounded by
water (or oil), within the pressure chamber. The autoclave includes a heating
jacket which completely surrounds the cement curing pressure chamber,
temperature controller, thermocouple, pressure gauge, adjustable pressure
regulator, and manual fill and bleed valve.
The Cement Curing Autoclave requires an external pressure source, such as
compressed nitrogen gas or a hydraulic pump, capable of providing pressure
up to 3,000 PSI.
1.2 Function
The Cement Curing Autoclave cures cement slurry samples under elevated
pressure and temperature to prepare them for destructive compressive-strength
tests. These tests help determine compliance to American Petroleum Institute
(API) Specification 10A, Specification for Cements and Materials for Well
Cementing. This device meets the requirements for pressurized cement curing
equipment found in API Specification 10A, and API Recommended Practice
10B, Recommended Practice for Testing Well Cements.
After the curing period, the samples are removed from the single-cube molds
and tested to determine their compressive strength.
The pressure relief valve prevents the pressure chamber from exceeding 3,000
PSI (20.7 MPa).
The desired temperature for curing the cement samples is set on the
temperature controller, which automatically maintains that temperature
throughout the curing period. The maximum recommended curing
temperature is 400 Degrees F (204 Degrees C). A thermostat in the heating
jacket is set for an upper limit of 450 Degrees F (232 Degrees C) for safety.
The practice of removing the curing chamber and cooling it under
water is very dangerous. It is not recommended because of the
danger of severe burns if touched or accidentally dropped. Also
use extreme caution when placing a hot chamber in water. Hot
steam generated when the water hits the hot chamber can cause
severe burns.

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1.3 Features
•Single chassis contains all components in a durable stainless steel case.
•Insulated heating jacket reduces heating of the work area.
•Two two-inch cube molds and covers are included.
•Adjustable pressure relief valve.
•Programmable temperature controller.
•Removable chamber carrying handle.
•Adjustable support feet.
Figure 1-1
Cement Curing Autoclave, front view

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Figure 1-2
Cement Curing Autoclave, back view