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

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

Area of Operations

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)

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

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

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.

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

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

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

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

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

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

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

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….)

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

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”

Significance of Geospatial Data Integrity Arjuna APN, West Java Basin 106° 59' 04.220" E 05° 25' 09.540" S Batavia Datum 106° 59' 04.220" E 05° 25' 09.540" S WGS 84 106° 59' 04.220" E 05° 25' 09.540" S Indonesian Datum 1974 106° 59' 04.220" E 05° 25' 09.540" S EPSG CRS list in indonesia ~28.7 m ~136.7 m

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

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

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

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

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.

Geospatial Quality Control Workflow *GI = Geospatial Integrity

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.

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