Download - Cathodic Protection Training
Indroduction
What Is Corrosion
Corrosion in Metals
Detection of Corrosion Metals
Mitigation of Corrosion
Cathodic Protection
Types of Cathodic Protection
Transformer Rectifiers
Surface Anode Ground Beds
Applications
Criteria for CP
100 mV Potential Criteria1400 1200 1000 800 600 400 200 01400 1200 1000 800 600 400 200 0
Polarization Decay
Current Density( At 300 C, 25% Increase in Every 100 C )
General Arrangement Of Equipment
Anode Lead Junction Box
Typical Stray Current
Potential Testing of Foreign Structures
Interference Vs. Potential Values
General Phases Of CP Program
ADCO CP Project
ADCO Contract No. 5922.01/EC
Basic Design Philosophy
Limitations Of Cathodic Protection In Oil & Gas Wells
Electrical Isolation
CP Current Requirement
Corrosion Potential Evaluation Tool (CPET) Logging
CPET Tool and Logs
E-log-i Testing
CP Current Attenuation0 -1,000 -2,000
-3,000
-4,000
-5,000
-6,000
-7,000
-8,000 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0
Current Density Per Segment0 -1,000 -2,000
-3,000
-4,000
-5,000
-6,000
-7,000
-8,000 0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
Groundbed Details
Preferred Groundbed Location
Determining Borehole DepthsMegger14.00 12.00 10.00 8.00 6.00 4.00 2.00
Drill Rig
Wellhead
0.00 3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60
Drill Rigs
Deep Anode Groundbed Details
Cross Section Of Deep Anode Groundbed
Titanium / MMO Anodes
Coke Breeze Backfill
Anode / Vent Pipe Loading
Deep Anode Installation Rig
Coke Breeze Pumping Operation
Power Supplies
Transformer Rectifiers
Solar Power Supplies
Solar Power Controller
Storage Batteries
Negative Connection To Well
Special Tools
Project CP Criteria
Assessment Of CP Current To Casing
Commissioning Activities
General Safety
PPE And Safety Equipment
Safety Hazards
Testing
Routine Testing
AC Input Measurement Of Rectifier
DC Current Output Of Rectifier
DC Voltage Output of Rectifiers
Measure and Balance CP Current To Well Casings (Dual Sites)
Tap Adjustment Of Rectifier
Correct
Wrong
Electronic Components Of Solar Controller
Solar Power Alarm Settings
Controller Alarm LEDs
CP Controller Adjustments
Normal Operating Display
Shunt Ratings
Shunt Rating / ConversionsEQUIPMENTSHUNT RATING
CONVERSION
Anode Current Measurements
Flowline Current Measurements
Interrupting Current Output of Rectifier
Sample Interference Test DataTest Location P/S Potential (mV)On Off Change
Results
Set-up and Down Loading of Data Loggers
Data Logger on Rectifiers
Rectifier Data Logger Connection
Set-up of Rectifier Data Logger
Data Logger Set-up Window(General)
Communication Type Codes (Unique 5 Digit No.)
Data Logger Set-up Window (Channel Tab)
Data Logger Set-up Window(Rectifier Tab)
Data Logger Set-up Window(Recording Tab)
Down Loading Data Logger (Status and Tools Window)
Down Loading Data Logger(Auto Report Window)
Generating Report
Sample Rectifier Data Logger ReportRMU SYSTEM (by RCS) SITE REPORT CUMULATIVE SITE NAME: COMMUNICATION No.: COMPANY: ADDRESS: DESCRIPTION: RECTIFIER No: RELAY NO.: MANUFACTURER: MODEL SERIAL NO.: CLASS: RATING: Bb-123 6 ADCO Cluster 21
1 of 1 1 Corrpower CSAY 30 -25 123456 Nema 3R 30 Volt / 25 Amp
Title: , Interrupter: Idle, Type: On, Start: Scheduled, Transfer Time: 07/23/04 13:19 01 01 01 02 02 Date / Time Min. Ave. Max. Min. Ave. (V DC) (V DC) (V DC) (V DC) (V DC) 7/21/2004 / 10:00:00 AM 7/21/2004 / 11:00:00 AM 7/21/2004 / 12:00:00 PM 7/21/2004 / 1:00:00 PM 7/21/2004 / 2:00:00 PM 7/21/2004 / 3:00:00 PM 5.75 5.82 5.75 5.82 5.75 5.82 5.88 5.91 5.88 5.91 5.88 5.91
02 Max. (V DC) 6.01 6.12 6.01 6.12 6.01 6.12
03 Min. (A DC) 15.22 15.31 15.22 15.31 15.22 15.31
03 Ave. (A DC) 15.65 15.81 15.65 15.81 15.65 15.81
03 Max. (A DC) 15.87 15.98 15.87 15.98 15.87 15.98
Down Loading of Solar Power Data Logger
Solar Power Data Logger Connection
Download Menu
Sample Readout of Solar Power Data LoggerSite: Date Bu191 Time Regulator Status CP V Operator: Anis CP Status RC V DI S H V A LV A LV D AY 1 Downloaded: Alarms AY 2 L C F A R F C P B S T S 29-Jul-2004 at 09:30yyyy-mm-dd hh:mm
Mode
BV
Temp
AI
LI
CP I
Maintenance
Routine Maintenance
Trouble Shooting
Problem of TR System
AC Power Problem
No DC Voltage
DC Voltage But No DC Current From T/R
Dummy Load Across Power Supply
Internal Transformer Rectifier Problems
Isolate Problem Of Solar System
Solar Panels
General Problems With Solar Controllers
Solar Power Supply Schematic
The
schematic diagram in the O & M manual will assist trouble shooting procedures.
Problems With Input Power
Problems With Charge Controller
Problems With CP Controller
Batteries
Anode With Low Output
Open DC Output Circuit
High Circuit Resistance