Presentation and review of TTA-report:
Exploration and Reservoir Characterisation
• Summary
• Background
• Project Proposal
Technology Strategy for
Exploration and Reservoir Characterization
Lead Party: FORCE (www.force.org)
Work Group:
Arild Haugen (NPD/FORCE)
John R Berry (BP)
Per Arne Bjørkum (Statoil)
Robert J Hofer (ConocoPhillips)
Robert P Johannessen (Total)
Kristian Kolbjørnsen (Lundin Norway AS)
Arnd Wilhelms (Norsk Hydro)
Contents:
1. Executive Summary
1.1
Background:
1.2
Status and gaps:
1.3
Conclusions:
2.Introduction
2.1
Background
3. Inventory mapping
3.1
Present Status
3.2
Ongoing initiatives
4. Gap analysis
4.1
Geophysics
4.2
Sedimentology and Stratigraphy
4.3
Structural Geology
4.4
Basin analysis: Source rocks, generation and migration
4.5
Rock Physics
4.6
Geomechanics
4.7
Reservoir Simulation and Modelling
5. Recommended activities and focus areas
6. Recommendation for projects
Appendix 1 - Technology Gaps – Tables
Background
• In 20 years more than 50% of the production will come from resources
yet to be found (Exploration)
• Large resources will presently remain in the existing fields after
projected shutdowns. There is a need for a combination of new and
enhanced IOR technology together with enhanced Reservoir
Characterization Methodology.
• This report will only focus on knowledge and technology.
Status
• The NCS is one of the leading technology areas in the
world especially within the seismic industry.
• Policies related to data sharing, availability and storage are
exceptional. However still unresolved issues…
• Advanced workstations and software tools have made
computerized reservoir models a standardized part of all
petroleum exploration and production.
Gaps
•
•
•
•
•
•
•
•
•
•
Uncertainty handling.
Integration of interdisciplinary data.
Basin analysis and depositional modelling.
Fault-seal prediction..
Modelling techniques that honour all available data..
Lithology and fluid prediction from geophysical data.
Seismic Imaging
Data preparation and maintenance of high-quality databases
Open standards for data communication between software tools.
Education and research in critical areas
Gaps
• Calibration of seismic data with lithology and fluid information.
• Seismic Imaging (e.g. multiples, complex geometries).
• Lack of underground data in parts of the NCS (Vøring and Møre
basins). The scarcity of wells in these areas leads to uncertainties in the
geological understanding.
Conclusions – Focus Areas
• Advances in seismic acquisition, processing and workflows need
continuous attention in order to provide better images in complex areas
• Improved Lithology and Fluid Prediction using full elastic wave field
(4C, EM)
• 4D and Life of Field Seismic integration with Rock Physics
• Depth migrated seismic as the new standard for interpretation (special
attention on the velocity model construction)
• Field wide 4D-VSP’s surveys / 4D tomography (down hole receivers
in several wells)
Conclusions - Integration
• A fully integrated Reservoir Model all the way from Seismic, through
Geo Model to Flow Model is needed.
• Improved modelling and simulation of reservoir heterogeneities with
focus on the behaviour of fault and fractures on reservoir performance.
Development of an integrated tool to handle fault seal analysis,
fracture analysis, drilling engineering, logging, and seismic data.
• Integrated Geomechanics software and work flows are needed as part
of an integrated reservoir modeling work flow.
• Calibration of stratigraphy, reservoir, source rock and thermal history
in under-explored basins.
Conclusions - Recommendations
• It is recommended to perform a feasibility study and evaluation of the
possible benefits of a stratigraphic well through the basalt area in the
Vøring and /or Møre Basin to gather data, promote research and
stimulate exploration activity.
• The establishment of a database of ongoing projects at universities and
research institutes is needed to increase knowledge sharing and reduce
redundancy
• There should be a strong focus on knowledge creation, competence
building and collaboration between companies, contractors and
academia.
• Norwegian knowledge and technology has already had a great
international influence and most of the proposals in this document will
have worldwide applications. In order to continue to achieve this it is
required to take into account worldwide knowledge, data and
technology developments.
Introduction
Background
Project Proposal
A well through the basalt
NPD Play Models
A stratigraphic well through basalt
Recommendation:
–Feasibility study
–Evaluation of possible benefits
Purpose:
–Gather data,
–Promote research
–Stimulate exploration activity.
Benefits:
–Natural laboratory for academia and industry in cooperation.
–A wealth of information pertaining to rock physics, sedimentology, heat flow etc
A well through the basalts – invitation.
• In order to evaluate the potential and possibilities for such a well we
would like to invite you to participate in a working group.
• NPD will actively participate and is also prepared to act as the project
leader during an initial stage.
• NPD will be able to contribute with seismic and OBS-data together
with geo-expertise personnel..
Mandate – Schedule
– The working group should have the mandate to define:
•
•
•
•
Possible location(s) for a stratigraphic well
Need for additional data collection before deciding drilling location
Need for additional resources (cost, service companies involvement etc)
Project plan for operational phase (organizational model, operator, timing,
budget, ownership of data etc)
• Possible future research projects based on the new data.
– Schedule
• Feasibility study and planning for area location – define necessary data
acquisition (August – Dec 2005). First decision gate to proceed.
• Data acquisition and analysis for evaluation of specific target area (2006 ).
• Drilling and data acquisition 2007 -2008
• Research Projects 2008 –
Response
• Postive: ExxonMobil, ChevronTexaco, Total, Statoil ...
• Negative: BP