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(IDC) INTEGRATED DATA COLLECTION TECHNOLOGY
Presented by: Kevin Pastotnik
Definition and Brief History to the Need
INTEGRATED DATA COLLECTION TECHNOLOGY
What is IDC?
What drove the need for IDC?
• IDC is an external assessment tool that performs multiple Indirect testing techniques simultaneously; in a single pass.
• Regulations called for 1, 2 or 3 tools depending on inspection cycle
• Budget and time constraints required for multiple passes using legacy equipment
• Application and limitations of tools weren’t always considered• Comprehensive analysis on data couldn’t always be
performed given number of tools used and limitations on the tool itself
Why Were Integrated Surveys Needed?
212145
123116
8563
5834
CorrosionMaterial/Weld Failures
Excavation DamageEquipment
OthersNatural Forces
Incorrect OperationOther Outside Force Damage
Occurrence
Cause of Leak
36460
4341
31202015151210
Body of PipeValves
ComponentPipe Seam
PumpBolted Fitting
Girth WeldJoint
Welded FittingSump
Metering Facility
Occurrence
Location Of Leak
Cost of emergency response phase: , $120,003,070.00
Value of operator property damage, $97,580,657.00
Cost of environmental remediation,
$94,508,863.00
Value of product …
Other public costs,
$13,029,922.00
Public/Private property damages amount,
$11,827,529.00
Other operator costs:,
$261,481,417.00
Leakage Cost
The direct cost of these accidents surpassed $ 600 million. However, not considered was corporate share devaluation that may reach $ billions, as in the April 2010 BP Gulf of Mexico incident.
Source: PHMSA Significant Pipeline Incidents, 2002-2009.
• From 1994 through 2013, there were an additional941 serious incidents with gas all system type, resulting in 363 fatalities and 1,392 injuries [1]
• A recent Wall Street Journal review found that there were 1,400 pipeline spills and accidents in the U.S. 2010-2013. According to the Journal review, four in every five pipeline accidents are discovered by local residents, not the companies that own the pipelines [2]
[1] Wikipedia reference to - http://primis.phmsa.dot.gov/comm/reports/safety/serpsi.html?nocache=5339#_ngtrans[2] Alison Sider, Wall Street Journal, Jan. 20, 2014
Why Were Integrated Surveys Needed?
Introduction to the Technology
IDC Simultaneously Collects:• ACCA – AC Current Attenuation Survey • ACVG – AC Voltage Gradient Survey• DCVG – DC Voltage Gradient Survey
Functionality of IDC
• CIS – Close Interval Survey• Sub-meter GPS Mapping• Pipe Location and Depth-of-Cover Survey• Optional Leak Detection Survey
ACCA – AC Current Attenuation Survey
What is ACCA?
How does it work?
• A tool that uses an inductive signal to map out simulated current and flow direction
• A transmitter induces simulated current at various adjustable loads.
• A receiver displays the amount of simulated current pickup and current flow direction
What is it used for?• Mapping current flow, response
and distribution• Locating electrolytic and metallic
shorts
ACVG – AC Voltage Gradient Survey
What is ACVG?• A tool that uses an inductive signal to locate and size coating anomalies
How does it work?• A transmitter induces a signal that
drains at coating anomalies• A receiver and probes locate areas
where the signal drains, then isolates and sizes anomalies based on signal measurements
What is it used for?• Locating and sizing coating anomalies• ACVG is able to find coating anomalies
that can be missed by DCVG
DCVG – DC Voltage Gradient Survey
What is DCVG?• A tool that uses interrupted CP current to locate and size coating anomalies
How does it work?• Existing, or induced, CP current is interrupted• The interrupted DC potential is measured where CP collects at the coating anomaly • The measured DC IR is used to size coating anomaly
What is it used for?• Locating and sizing
coating anomalies
CIS
What is CIS?• A tool that collects pipe-to-soil potential
measurements at select intervals to determine cathodic protection levels
How does it work?• A meter and probes are used to collect
DC potentials using wired connections to above ground appurtenances
What is it used for?• To determine cathodic protection levels• Interrupted (On/Off), Static and Native
are the most common types of CIS survey. Each survey type is used to determine different criterion specifications are achieved
– Close Interval Survey
Additional IDC Technologies
GPS Mapping• Sub-meter accuracy • Ability to track access routes and perform quality
control on the integrated data• Ability to GPS map in areas of high foliage and
cover
Pipe Location and Depth-of-Cover Survey• Pipe location and depth-of-cover integrated into
the data stream and used as part of the data analysis
Optional Leak Detection Survey• Ability to perform regulatory leak detection
surveys while GPS mapping areas of concern
Advantages of Application
• ACCA, ACVG, DCVG, CIS, GPS, Leak Detection +
IDC ALLOWS FOR 6 OR MORE TOOLS IN A SINGLE PASS
Legacy equipment only allows for 1 tool in a single pass significantly increasing the amount of resources and time required to complete a comprehensive survey
Utilizing the data from all tools allows for complete analysis and a more accurate assessment of risk in areas of concern
For Example:• ACVG (vs) DCVG coating anomalies• CIS trends (vs) coating anomalies• CIS potentials (vs) ACCA metallic shorts• ACCA metallic shorts (vs) coating anomalies
IDC ALLOWS FOR INTEGRATED EXTERNAL DATA ANALYIS
Integrating IDC and ILI data allow the user to perform total analysis
For Example:• ACVG / DCVG coating anomalies
(vs) ILI metal loss• ACCA current mapping (vs) ILI below grade
flange location • Pipeline location and DOC (vs) ILI inclination
and POI’s• Historical IDC (vs) historical ILI comparison
IDC and ILI INTEGRATION
• Reduction in personnel and time required to perform comprehensive survey
• Manages the risk with dig selections using data from only 1 or 2 tools
• Every data point and its coordinates are recorded and saved into an all data export which can later be imported into any data stream, or GIS system
• Every data point can be queried and compared to historical findings
IDC COST EFFECTIVENESS
• Remotely review data to find additional defects that may have been missed during collection
• Collects continuous GPS and is able to track the equipment operator throughout the survey
• Able to set data point extremity notices so the operator can be advised of AOC’s in real-time
• Every data point is collected in sub-meter GPS, reducing the overall footprint of remediation if necessary
IDC QUALITY CONTROL
