Building a Spatial Decision Support System for Natural Gas Pipeline Risk

Building a Spatial Decision Support System for Natural Gas Pipeline Risk

Matt Landry – Project ManagerFrank Yeboah - Specialist

CONNECT. TRANSFORM. AUTOMATE.

Source: "FullMoon2010" by Gregory H. Revera - Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons -http://commons.wikimedia.org/wiki/File:FullMoon2010.jpg#/media/File:FullMoon2010.jpg




Source: Wikipedia.org



𝑅𝑖𝑠𝑘𝐹𝑎𝑖𝑙𝑢𝑟𝑒 = 𝑃𝑟𝑜𝑏𝑎𝑏𝑖𝑙𝑖𝑡𝑦𝐹𝑎𝑖𝑙𝑢𝑟𝑒 X 𝐶𝑜𝑛𝑠𝑒𝑞𝑢𝑒𝑛𝑐𝑒Failure



B2 - Probability

of 3rd Party

Unaware of One-

call (from

Method of

Communicating)

B3 - Probability

of ROW Signs not

Recognized (from

Placement

Frequency)

B4 - Probability

of Permanent

Marker Failure

(from Warning

Tape Presence)

E1 - Probability of

3rd Party

Unaware of

Pipeline

B5 - Probability

of 3rd Party

Choosing not to

Notify (from

Penalty for not

Notifying)

B6 - Probability

of Third Party

Failure to Avoid

Pipeline (from

Default Value –

0.40)

E2 - Probability of

3rd Party

Negligence

E3 - Probability of

Activity not

Notified by 3rd

Party

B7 - Probability

of ACMP

Personnel not On

Patrol During

Activity

B8 - Probability

of Other ACMP

Personnel not

Observing

Activity

E4 - Probability of

Operator

Unaware of

Activity

B9 - Probability

of Excavation

Prior to

Operator’s

Response (from

Response Time)

B6 - Probability

of 3rd Party

Failure to Avoid

Alignment (from

Default Value –

0.40)

B10 & B12 -

Probability of

Temporary Markers

Incorrect (from

Marking Method

and Data Source)

B6 - Probability

of 3rd Party

Failure to Avoid

Alignment (from

Default Value –

0.40)

E5 - Probability of

Absence of

Temporary

Markers

E6 - Probability of

Incorrect

Temporary

Markers

E7 - Probability of

Failure of

Temporary

MarkersB4 - Probability

of Permanent

Marker Failure

(from Warning

Tape Presence)

E8 - Probability of

Failure of

Alignment

Markers

E9 - Probability of

Alignment Not

Properly Marked

B11 - Probability

of Accidental

Interference with

Marked

Alignment

EI Mitigation

Score

(1-10)

OR

OR

OR

OR

AND

AND

AND

AND

AND AND

B12 - Probability

of Centerlines

Incorrect (from

Data Source for

Centerlines)

B13 - Probability

of One-Call

System Failure to

Notify Operator

(from State One-

Call Grade)

OR

OR

𝑃𝑟𝑜𝑏𝑎𝑏𝑖𝑙𝑖𝑡𝑦𝐹𝑎𝑖𝑙𝑢𝑟𝑒 = Exposure × 𝑀𝑖𝑡𝑖𝑔𝑎𝑡𝑖𝑜𝑛 × 𝑅𝑒𝑠𝑖𝑠𝑡𝑎𝑛𝑐𝑒









CP Annual Survey Water Analysis

Atmospheric Corrosion Survey Close Interval Survey

Bond Inspection A/C Monitoring Form

Rectifier Inspection ILI Evaluation (3 parts):

Bacteria Serial Dilution • Project Details

Chemical Usage Report • Pipe Tally

Corrosion Coupon Report • Anomaly Evaluation



Failure

Mode

(XX)

Health and Safety

Consequence

Score

Financial Consequence ScorePublic Image

Consequence Score

Environmental

Consequence Score

Lost Lives From

Explosion

Lost Commodity

Cost

Structure

Damage CostDowntime Cost

Pipe

Repair

Cost

Public Impact Environmental Impact

Leak w/

Ignition (LI)X X X X X X X

Leak w/o

Ignition

(LNI)

X X X X X

Rupture w/

Ignition

(RI)

X X X X X X X

Rupture

w/o

Ignition

(RNI)

X X X X X






Gas Gathering SystemR_GGS_FACTS.fmw

[R_GGS_FACTS]

SEGMENT_IDR_SEGID_FACTS.fmw

[R_SEGID_FACTS]

GISID_IDR_GISID_FACTS.fmw

[R_GISID_FACTS]

SUBSEG_IDR_SUBSEGID_FACTS.fmw

[R_SUBSEGID_FACTS]


R_GGS_FACTS.fmw


R_SEGID_FACTS.fmw


R_GISID_FACTS.fmw


R_SUBSEGID_FACTS.fmw



Weather and Outside Forces Process



Image Source: http://www.utc.wa.gov/publicSafety/Documents/Williams%20Presentation%20-%20ILI%20Technologies.pdf


Image Source: http://www.utc.wa.gov/publicSafety/Documents/Williams%20Presentation%20-%20ILI%20Technologies.pdf



Voronoi Polygons





SUBSEG_IDR_SUBSEGID_FACTS.fmw

[R_SUBSEGID_FACTS]Fields: 36

Row Count: 193388Unique ID: SUBSEG_ID

GGSR_GGS_FACTS.fmw

[R_GGS_FACTS]18 Fields198 Rows

Unique ID: GGS_NUM

GISIDR_GISID_FACTS.fmw

[R_GISID_FACTS]Fields: 62

Row Count: 9820Unique ID: GISID

SEGMENT_IDR_SEGID_FACTS.fmw

[R_SEGID_FACTS]Fields: 13

Row Count: 6177Unique ID: SEGMENT_ID



Thank You!

• Questions?

• For more information:• Matt Landry, [email protected]

• Frank Yeboah, [email protected]

mailto:[email protected]

mailto:[email protected]

Technology

Building a Spatial Decision Support System for Natural Gas Pipeline Risk