Pipeline Mapping in Egypt

Pipeline Mapping In Egypt ,[object Object],[object Object],[object Object],[object Object]

Pipeline Mapping In Egypt ,[object Object],The Inspection PIG Reflections

Egypt - General Facts (1) Climate - desert Religion – 94% Moslem, 6% others Data and map taken from the CIA World Facts WEB page Government Type - Republic Natural resources - Oil,gas.. Language – Arabic

Egypt – General Facts (2) ,[object Object],Population – 70.7m Economy currently in recession Development of a gas export market is key Rapid urbanisation Data and map taken from the CIA World Facts WEB page

GASCO ,[object Object],Over 3000km of pipelines Pipelines mainly buried Health and safety responsibility

Issues from a Consultancy perspective ,[object Object],Co-ordinate system? Mapping? Inspection PIG? GIS? GASCO geomatics knowledge? GASCO survey equipment?

Issues from a personal perspective ,[object Object],I didn’t know anything about PIGS! My knowledge of satellite imagery was limited My knowledge of GIS integration was extremely rusty Could I make changes to the specification?

Pipeline Mapping In Egypt ,[object Object],The Inspection PIG

PIGS Foam pig Cleaning pig (can be run several times) Profile pig Cup pig (with gauge plates to 85% of pipe) Bend detection pig

Inspection PIG ,[object Object],Defects – corrosion, dents, eccentricity Measured using Magnetic flux leakage

Picture from http://www.battelle.org/pipetechnology/MFL/Links/tutorial2.html?

Picture from http://www.bakerhughes.com/bakerhughes/pipeline_management/pmg_tools_mfl.htm

Inspection PIG ,[object Object],Defects – corrosion, dents, eccentricity Chainage defined by 3 Odometers. INS fitted in GASCO’s Inspection PIG Measured using Magnetic flux leakage A data collection tool!

Potential sources of error ,[object Object],Slippage and shimmy Odometer Above ground control Accuracy Correlation with the INS Gyro and accelerometer scale/bias error INS Eccentricity

Error modelling Model taken from Honeywell report, 1996

Practical implications ,[object Object],First magloggers positioned on the ground every 1km Position; Time; Wrong point; Not turned on/Battery ran out GASCO specification was for a positional accuracy of any asset to 1m PIG travels at 3.2metres per second……..

GASCO summary ‘ To use the latest global technologies in the construction, management and maintenance of gas grid pipelines, utilities and facilities in both economical and safe means’ So why did GASCO use this technology? There is always a risk in using new technologies.

Reflections (1) + survey 140km in a day - requires a first order control network based on WGS84 The Inspection Pig has strengths and weaknesses - + integrates defects and assets with position - does not give depth below the ground - does not survey assets away from the pipe + ideal for unmapped pipes in difficult terrain

Reflections (2) ,[object Object],Geodesy is still critical An ability to differentiate between Geomatic softwares … .but there are other important criteria An understanding of different types and uses of mapping Data quality – know how to analyse

Reflections (3) ,[object Object],Pro-active – collaborate with the stakeholders Patience – expect the unexpected Communication – confirm and confirm again Organisational Politics Intuition – use it Selling

and finally… Working overseas can be fun Do take the risk It’s the quality and range of experience that’s important, not just the money

GeoVision ,[object Object],[object Object],[object Object]

Pipeline Mapping in Egypt

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Editor's Notes