OfiTE 120-55 User manual

Benchtop HTHP Curing Chamber
Part No. 120-55
Instruction Manual
Updated 7/13/2018
Ver. 4.0
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
Intro..................................................................................................2
Description......................................................................................2
Components ...................................................................................2
Specications .................................................................................3
Setup................................................................................................4
Preparing the Slurry ....................................................................6
Operation.........................................................................................7
Termination .....................................................................................9
Maintenance..................................................................................10
Appendix ....................................................................................... 11
Fuses ........................................................................................ 11
Temperature Controller .............................................................12
Auto Cool ..................................................................................15
Rupture Disc .............................................................................16
Warranty and Return Policy ........................................................17
Table of
Contents

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 2
The OFITE Benchtop HTHP Curing Chamber is designed to prepare
well cement specimens for compressive strength tests. It is necessary to
determine the amount of time required for a cement to develop compressive
strength so that drilling/production operations can be resumed as quickly as
possible. The goal is to design a slurry that can quickly develop compressive
strength so that the “waiting on cement” time may be minimized. The OFITE
HTHP Curing Chambers provide a means of curing cement specimens under
typical downhole temperatures and pressures.
Cement is poured into a special mold that produces specimens measuring
2" × 2"× 2". The mold is placed into the test cell and the pressure is increased
via an air-driven hydraulic pump. Test temperature is governed by a PID
temperature controller, which actuates the heater. After a predetermined
amount of time, the temperature of the test cell is reduced by the cooling
system. Specimens are removed and the compressive strength is determined
as outlined in API Specication 10.
#120-55-005 High-Pressure Filter
#120-55-006 Heater; Thinband; 1,650-Watt; 230-Volt; Qty: 2
#122-052 Rupture Disk; 5,500 PSI (37.9 MPa)
#122-083-1 Cement Mold Assembly, 4 Specimen
#152-38 AC Power Cord; 3-Conductor; International (Continental
European)
Optional:
#120-55-SP Spare Parts for Benchtop Curing Chamber
#120-55-003 Breaker, 16 Amp#120-55-006Heater, Qty: 2
#122-034 Needle Valve, 15K, Qty: 2
#122-052 Rupture Disk, 5,500 PSI, Qty: 2
#122-072 Fuse, 1 Amp, 5 mm × 20 mm, Qty: 8
#122-083-1 Cement Mold Assembly, 4 Specimen
Intro
Description
Components

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 3
Specications Air Supply Maximum 150 PSI (1035 kPa)
Cooling Water Supply 40 PSI (276 kPa)
Readout Digital
Safety Features Pressure Relief Valve
Safety Head with Rupture Disk
Power Requirements 220 Volts, 50 / 60 Hz, 40 Amp
Weight 215 lb (94.6 kg)
Dimensions 25" × 16" × 20" (63.5 × 40.6 × 50.8 cm)
Shipping Weight 255 lbs (115.8 kg)
Shipping Dimensions 30" × 20" × 24" (76.2 × 50.8 × 61 cm)
Industry Standards API Specication 10, ASTM Standard C-109
Maximum Temperature / Pressure Combinations
Temperature °F (°C) Pressure PSI (kPa)
125 (51.7) 5,250 (36,200)
190 (87.8) 4,800 (33,096)
260 (126.7) 4,400 (30,338)
375 (191) 4,000 (27,600)
400.0 (204.4) 3,800 (26,201)

OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: [phone] / Fax: [phone] / www.ote.com 4
Setup The Benchtop Curing Chamber consists of two modules. The Cell Module
houses the test cell, heaters, and pressure ttings. The Control Module
houses all of the electronic controls and the timer.
1. Carefully remove both modules from the crate.
2. Make sure the “Fill Cell”, “Air to Cylinder”, and “Pressure Release” valves
are closed (turned fully clockwise).
3. Connect a Nitrogen supply (690 – 1,035 kPa or 100– 150 PSI), a water
supply, and a drain line to the designated ¼" (6.35 mm) ports on the back
of the Cell Module.
4. Plug the data cable into the designated ports on the two modules.
5. Plug the thermocouple into the Thermocouple Port on the top of the Cell
Module. Plug the temp data cable (male on both ends) into the Temp Data
Port on the top of the Cell Module. Plug the other end of the cable into the
designated port on the back of the Control Module.
Thermocouple Port
Temp Data Port
6. Make sure all of the switches on the control module are off. Plug the unit
into a grounded electrical outlet.
7. Turn the “Main” switch on.