1. ASIA GEOSPATIAL FORUM 2011
Sustaining Geospatial Data Integrity for Safe Exploration & Production (E&P) Operation
By:
Razali B Ahmad, Saiful Nizam B Mustafa, Afiq Juazer Rizal
Geomatics Department, Technical Services Division, PETRONAS Exploration
PETRONAS Carigali Sdn. Bhd.
ASIA GEOSPATIAL FORUM
17 – 19 OCTOBER 2011
Hotel Mulia Senayan, Jakarta, Indonesia

2. Contents
1.0 Introduction 2.0 E&P Activity Cycle 3.0 Challenges 3.0 Complexity of E&P Data 4.0 Significance of Geospatial Data Integrity 5.0 Consequences of Incorrect “G” Component. 6.0 Way Forward 7.0 Summary

3. Area of Operations

4. Geomatics Technical Authority:
Custodian of corporate geospatial data
Verifications of proposed well / platform location(s)
Coordinates Reference System (CRS) and control surveys for seismic acquisition
Positioning of temporary and permanent installations (e.g. anchors, barges, rigs, platforms and wellhead) in pre-defined location(s)
Pipeline route surveys
Shallow geohazard identification for offshore facilities
Survey and mapping support to project teams
Subsidence measurement & monitoring (e.g. caused by reservoir compaction)
Maintenance of maps, geoinformation, satellite imagery and GIS for emergency response centers (e.g. search & rescue, vessel tracking)

5. G I S ? Technology Applications - Spatial Data integrity ?????
Introduction
G I S ?
Technology
Applications
Data integrity ?????
- Spatial

6. E&P Activity Cycle Geographical Information System 80%
Acquire Rights
Explore
Appraise
Develop
Produce
Abandonment
Blocks
Geology
HC Resources
Maps & databases
Acquire Rights
Seismic
Rig moves
Wells
Maps & databases
Explore
Seismic
Geohazards
Reservoir
Environmental
Wells
Maps & databases
Appraise
Rig moves
Construction
Pipelay construction
Precise Positioning
Maps & databases
Develop
Platform surveys
Pipeline inspection
Maps & database
Produce
Pre/as-built survey
Metocean
Environmental
Maps & databases
Abandonment
80%
Petroleum Industry is location dependent
Geographical Information System

7. Challenges
To manage and maintain geospatial integrity through out the E&P Activity Cycle.
Typical lifecycle of about 25 years.
Failure to manage data integrity in any of the cycle will result in loss of potential discovery and investment.
Significance of spatial data to be appreciated.

8. Challenges
What is the value of interpreted data without its spatial component?

9. Challenges
What is the value of the map without its spatial component?

10. Complexity of E&P Data GNSS LIDAR Lay Barge Geophysical Diving Bell
Subsea Wellhead
Sonar
ROV

11. Complexity of E&P Data To include land- refinery/supply base
To remove 1st vessel.
To include anchore wire.

12. GIS in E&P GIS helps in managing the complexity of data
Due attention is given to key components i.e. geographical or location data
GIS helps in managing the complexity of data

13. Significance of ‘G’ in GIS
Geology
Data
Seismic data,
gravity & magnetic
Data
Environment
Data
Well data,
Hydrocarbon production
Data
Hydrographic data
Wrecks, etc.
Data
Cultural Data
Data
Engineering data
Data G
Subsurface
interpretation
Data
Document Mgt
Data
Pipelines
Data
Fields, Leads & Prospects
Data
Bathymetry data
Data
New Opportunities
Data
Survey Ops.
Data
Licensing
Data
etc, etc, etc ...
Data
G= Geographical Components

14. Significance of Geospatial Data Integrity
In E&P/oil and gas business, excellent subsurface data incomplete without the surface coordinates i.e. its location data
E&P Companies handle varied number of Coordinates Reference Systems (CRS) in their database.
MRSO
BRSO
UTM Z48
UTM Z49
UTM Z50

15. Significance of Geospatial Data Integrity
GIS is meaningless if the position i.e. “G” is suspect.
Good data + wrong location = loss of investment
To provide a link to an accurate and reliable information for better E&P project planning via simultaneous data analysis and mapping.
To ensure safe operation.
To protect people & sustain the environment
To protect business asset and reputation
good seismic data + good positioning data = potential discovery
good seismic data + bad positioning data = useless
bad seismic data + good positioning data = useless
(but at least we know where the bad data is….)

16. Significance of Geospatial Data Integrity
With GNNS, Coordinates are no longer unique ….
With the introduction of GNNS

17. Significance of Geospatial Data Integrity
Coordinates are only unique when qualified by the geodetic datum/projection name.
A point has different latitude and longitude when the geodetic datum is changed.
Lat 5°31’27”
Long 105°31’27”
WGS 84
Lat 5°31’27”
Long 105°31’27”
To include in example in indonesia
Kertau
Lat 5°31’27”
Long 105°31’27”
Timbalai
Lat 5°31’27”
Long 105°31’27”

18. Significance of Geospatial Data Integrity
Arjuna APN, West Java Basin
106° 59' " E
05° 25' " S
Batavia Datum
106° 59' " E
05° 25' " S
WGS 84
106° 59' " E
05° 25' " S
Indonesian Datum 1974
106° 59' " E
05° 25' " S
EPSG CRS list in indonesia
~28.7 m
~136.7 m

19. Consequence of Applying Incorrect “G” Component
Existing pipelines
Existing Platform
New proposed route
Barge approach
to the platform
Existing pipeline
Anchor Wires
Anchor targets location with 300m radius from Pipelines

20. Consequence of Applying Incorrect “G” Component
$$ million
Actual Position

21. Consequence of Applying Incorrect “G” Component
Insufficient Coverage
SURVEY
INTERPRETATION
WGS84 vs. Local ~300m

22. Consequence of Applying Incorrect “G” Component
Drill at the wrong location
Country
Boundary
Proposed Well
$$ million
WGS84 vs. Local ~300m
~300m
Reservoir
Reservoir

23. Way Forward Geomatics personnel in GIS Team.
Geomatics awareness of all GIS Team members.
GIS need to be maintained with up-to-date information to ensure it continuously benefit users.
Proper workflow to maintain the integrity.
Ensure the spatial integrity of third party data. e.g. IHS, ROBERTSON, GETECH, etc.

24. Geospatial Quality Control Workflow
*GI = Geospatial Integrity

25. Summary
GIS is meaningless if the geographical (G) component is suspect
Mismanagement of geospatial data leads to potential loss of investment
Sustaining the geospatial integrity is not limited to the data updates but the coordinates integrity.
Sustaining the geospatial integrity is important to ensure the right location and safe operation.

26. Hotel Mulia Senayan, Jakarta, Indonesia
Sustaining Geospatial Data Integrity for Safe Exploration & Production (E&P) Operation
Thank you
ASIA GEOSPATIAL FORUM
17 – 19 OCTOBER 2011
Hotel Mulia Senayan, Jakarta, Indonesia