Upstream Leases

Upstream Leases

European User Conference - ESRI 2011

Mercedes del Río
Agatha Arauzo
Upstream GIS Group

© Upstream Information Management- GiS Team

Index
• Background
• Repsol Upstream
• Portfolio Management

• Data
• Information Quality Management
• Coordinates Reference System Management

• Upstream Leases Application
• Technology
• Architecture
• Components

• Conclusions
• Future
© Upstream Information Management- GiS Team 2

Repsol E&P
• The upstream oil sector is a term used to refer to the searching for and the
recovery and production of crude oil and natural gas. The upstream oil sector
is also known as the exploration and production (E&P) sector. (Wikipedia)
• Includes the searching for potential oil & gas fields, drilling exploratory wells,
and operating the wells to bring the crude oil & natural gas to the surface

• Exploration Focussed

Key Areas Exploration Development Identify Future Growth Areas

• Increase Profitability by Optimizing Existing Assets

Asset / Portfolio Management Risk Identification & Reduction Investment


Portfolio Management 1

• Portfolio as main core of E&P
• Repsol Portfolio dept. manages our assets helped by three applications:

LOP UL BAPE
(Opportunity Book) (Upstream leases) (Exploration portfolio)

• Lease data was mainly used and exploited by the departments of
Portfolio and Planning
• Previously, lease management based in data types:
• Portfolio Madrid: management and update of the alphanumeric data,
e.g. stage dates, commitments, acreage, partners, operator, etc,
• DSI Argentina: update of the geographical data, coordinates that draw
the lease polygon according to its CRS.

Portfolio Management 2

• The need of updating UL application came end of the 2009
• Integrated management of our assets
• Management from Madrid
• “Data Quality” guaranty: validation & verification (errors and
abnormalities)
• Obsolete technology: ArcIMS + ArcSDE 9.2. + Oracle 8
• New functionality
• Strict control of CRS to guarantee good positioning and
consistency with other applications data


Data Quality Management
• Data Validation, Verification & QC
• Data Revision
• Contact with BU for data validation and approval for correction
• Use of a data model for validation and data loading
• Introduction of master tables in the new application
• Countries ISO 3166-1, Companies, Basins
• Data interoperability and consistency with other applications
• Development of a data reception procedure workflow
• Lease Geographic boundary representation – awareness
• Data definition – to avoid terminology ambiguity
• CRS Management


CRS Management

• Development and implementation of a Coordinate
Reference System (CRS) master so all upstream
applications use the same CRS definitions and
transformation parameter values
• It follows the OGP (Oil &Gas Producers) recommendations
by using the standard libraries defined in the EPSG
dataset
• UL and EPSG dataset connexion via API
• Transformation from a local CRS to WGS 84 using ArcGIS
server engine


EPSG Dataset --- no la mostrare lo explico
• The EPSG Geodetic Parameter Dataset, abbreviated to the EPSG Dataset, is a
repository of parameters required to:
• define a coordinate reference system (CRS), which ensures that coordinates describe position
unambiguously.
• define transformations and conversions that allow coordinates to be changed from one CRS to
another CRS. Transformations and conversions are collectively called coordinate operations.
• The EPSG Dataset is maintained by the OGP Geomatic’s Committee's Geodetic
Subcommittee. It conforms to ISO 19111 – Spatial referencing by coordinates. It is
distributed in three ways:
• the EPSG Registry, in full the EPSG Geodetic Parameter Registry, a web-based delivery
platform in which the data is held in GML using the CRS entities described in ISO 19136.
• the EPSG Database, in full the EPSG Geodetic Parameter Database, a relational database
structure where the entities which form the components of CRS’s and coordinate operations are in
separate tables, distributed as an MS Access database;
• in a relational data model as SQL scripts which enable a user to create an Oracle, MySQL,
PostgreSQL or other relational database and populate that database with the EPSG Dataset;

Surveying and Positioning Guidance Note Number 7, part 1


Upstream Leases Application - Technology

• Difficulty to make a worldwide layer for leases
• Geographic data loaded in local CRS depending on the
country or zone
• No original coordinates stored
• Complex data loading
• GIS data managed by specialist group
• Old style ArcIMS basemap layer
• No support for contract documentation


Upstream Leases Application - Technology

• New technology
• SQLServer 2005 – Alphanumeric database
• ArcSDE 9.3 – Geospatial database
• ArcGIS Server 9.3 – Map Server. Flex Viewer
• .Net + Ajax

• Expanded GIS functionality
• Load coordinates module
• CRS module
• Mapping

• Other Improvements: Lease sheet, predetermined reports
and historical information

Upstream Leases Application - Architecture

Presentation layer
Internet Explorer Client
Flex Viewer

. Net
Business layer

Data layer

Da SQL Server 2005 Web & GIS Server
tabase Server • ArcGIS Server 9.3
•ArcSDE 9.3 • IIS


Upstream Leases Application - Components

CRS
Manager

GIS
Manager Upstream
Leases


Upstream Leases Application


Upstream Leases - Reports


Upstream Leases - Administration


GIS Module – CRS Manager

XML

Modify Create CRS:
CRS • From OGP ID
• From a existing CRS
• Completely new

Master tables



• Create a new geodetic parameter dataset in CRS Master with EPSG
assistance, by defining it:
• From an OGP ID

• From an existent geographic coordinates system

• From an existent geographic coordinates system

• As a New CRS

• Modify Transformations stored in CRS Master database

• Add countries to existing CRS


EPSG – Geodetic Parameter Dataset E.G. WGS84, OGP ID 4326


GIS Module – GIS Manager

• Allows single loading coordinates through the web application
selecting standard CRS and Transformation from the CRS
Master depending on the country
• Allows multiple leases loading of coordinates from xls files
• Validates the polygons topology
• Transform coordinates from the source CRS to the target CRS
(WGS84) by using ArcGIS Server Engine
• Store original coordinates and all the related geodetic
parameters in the database
• Create leases polygons into one unique layer
• Visualize the global locations of all leases in a modern Web
Viewer

GIS Module – GIS Manager

•Transformation
•Validation
•Layer Creation

Load original Read CRS
Coordinates & Metadata

WGS84 Coord.

Master tables


GIS Module - GIS Manager


Conclusion
UPSTREAM LEASES IMPROVEMENTS

MANAGEMENT QUALITY

Master tables implementation

CRS Master Quality and consistency of data
Integrated UL management
Feed all applications Data completeness & CRS awareness
Centralised data management
with the same CRS
Real time information UL data reception workflow
Geodetic consistency
Up to date technology Implementation of procedures
Position consistency
Implementation of data definitions
Establishment of a data model
Responsible in each BU and WG


Future

• Business Value
• Portfolio applications suit will be interoperable
• Upstream Leases as primary data source - integration with
other GIS, G&G, Perforation, Production applications
• Data organised for new exploration areas
• Real Time Answers
• Data Usage Increase across the Organisation
• Data model growth possibility

• Use ArcGIS Server 10


Upstream Leases

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