SPE/EAGE Workshop: The Future of Geomechanics in Brown Fields and Unconventionals 25 - 26 Apr 2018 Abu Dhabi, UAE

Agenda

Wednesday, April 25

08:00 - 08:45
08:45 - 08:55
08:55 - 09:10
09:10 - 10:30
Session 1: Data Accuracy, Reliability and Model Robustness
Session Chairpersons Thomas Finkbeiner, KAUST; Atef Onaisi, Total

Building geomechanical models requires the definition of detailed material models, knowledge of associated hydro-thermo-mechanical (HTM) parameters and an understanding of in-situ stress and pore pressure conditions. In particular, with the advent of complex 3D geomechanics modelling, the capability to reliably predict risks associated with drilling, completion and production remains controversial. There can be many uncertainties, either natural or man-made, that surround the underlying parameters and scaling techniques, and quite often there is simply a lack of data.

This session aims at investigating state of the art approaches to deal with:

  • Uncertainties in the accuracy and interpretation
  • Variabilities within the rock formations and data acquired
  • Lack of data
  • Probabilistic risk assessments when deterministic ones are not at hand
10:30 - 11:00
11:00 - 12:20
Session 2: Increasing Asset Value through the Application of Geomechanical Workflows
Session Chairpersons Scott Mildren, Ikon Science; Abdullah Al Neyadi, ADNOC Offshore

In the current economic climate, exploration and production companies are focused on maintaining their market value.  Market value is intrinsically linked to their booked reserves and in recent times we have seen efforts to maintain or increase reserves become a priority over exploration.

As many assets tend towards end of life, intelligent Brown Field developments can extend production or open up new plays (unconventional), significantly increasing reserves and value. Geomechanics plays an important role in optimising reserves of plays in one of three ways; increasing volumes, increasing recoverable percentage or by lowering development costs.

Key topics for discussion will include:

  • Mapping migration pathways and seal integrity
  • Understanding pore pressure distribution
  • Optimising stimulation and sweep efficiency
  • Reservoir characterisation, fracture permeability and sweet spot mapping
  • Lowering non-productive time while drilling
  • Improving well placement and trajectories
     
12:20 - 13:30
13:30 - 14:50
Session 3: Lowering Development Costs
Session Chairpersons Surej Kumar Subbiah, Schlumberger; Gary Aillud, ADNOC Onshore

The role of geomechanics in identifying operational risks associated with rock mechanical behaviour is to provide optimised solutions to reduce non-productive time. In the current phase of low oil prices, risk mitigation through the life cycle of a hydrocarbon reservoir is essential to reducing development costs, and ultimately, increasing sweep efficiency and recovery.

The session will aim to address how geomechanics is being used to provide financial benefits to operations from exploration through to field development.

Key topics for discussion will include:

  • Cost and risk minimisation including non-productive time
  • Role and integration of geomechanics in field development processes
  • Optimisation of well placement
  • Well design and optimisation for hydraulic fracturing
  • Quantifying and maximising the value of geomechanics in operations
  • Real-time geomechanics during drilling 
14:50 - 15:00

Thursday, April 26

08:00 - 08:45
08:45 - 08:55
08:55 - 09:10
09:10 - 10:30
Session 4: Surveillance and Monitoring
Session Chairpersons Tom Davenport, CGG; Adam Donald, Schlumberger; Abdelwahab Noufal, ADNOC

Temporal and spatial changes in geomechanical properties during development and production phases can have a large impact upon well and reservoir behaviour. With coupled reservoir-geomechanical modelling becoming more common, monitoring and surveillance is critical for confirming predictions of production, or well and integrity failures.

It is crucial to monitor these properties at both a reservoir scale (including compaction, subsidence, fracture/fault behaviour, cap rock integrity) and a wellbore scale (including casing collapse, wellbore integrity, sand/solids production and injection.) Effective surveillance and monitoring can then allow dynamic updating and calibrating of the coupled reservoir model.

Key topics for discussion will include:

  • How monitoring technologies are being used today
  • Effective timing of monitoring
  • The value of monitoring technologies for geomechanics models, and how best to incorporate them in standard workflows
  • Can geomechanical monitoring be coupled with standard reservoir surveillance?
  • How repeatable are the measurements?
  • Current limitations of surveillance & monitoring
10:30 - 11:00
11:00 - 12:20
Session 5: New Technologies and Advancement in Application
Session Chairpersons Robert Newman, Schlumberger; Tony Addis, Rockfield; Marwan M. AlThagafy, Saudi Aramco

This session addresses the application of novel geomechanical concepts and models to reduce costs, increase production and improve reserve recovery.

Geomechanical engineering has always needed to address the issues of the day: reservoir compaction, wellbore stability (especially when ERD and horizontal wells became mainstream) and more recently 3D field modelling for 4D seismic interpretation.

In 2011, 67% of the world’s oil production came from mature/Brown Fields, but the most effective methods for monitoring and exploiting these fields are not yet standardised. Since 2011, shale oil production has become prominent, and again it is essential to understand when and how to extract most benefit from each new technology.

The discussion will cover:

  • Technologies already in use that could be applied more widely and effectively
  • Technologies that are now undergoing their first field trials
  • Technologies that have been devised, but have not yet been applied in the field
12:20 - 13:30
13:30 - 14:50
Session 6: Future of Geomechanics: Strengthening Impact and Education
Session Chairpersons Glen Burridge, Glen Burridge & Associates; Sotirios Kokkalas, Petroleum Institute; James Verdon, University of Bristol

Geomechanics has become increasingly important because substantially more projects involve viscous or immobile oils, HPHT, and reservoir formations that are weak, intensely fractured, or highly compressible. However, arguably the greatest constraint geomechanics faces is awareness of its potential impact by industry decision-makers.

The challenge of visibility starts early on in the education of geoscientists with the mechanical behaviour of the earth often not featured prominently in university curricula. Insufficient support for research initiatives culminate only selectively when featured in established industry workflows.

Key topics for discussion will include:

  • Why does this lack of awareness still exist?
  • What can we do to bring geomechanics to the fore in the effective and responsible search for hydrocarbons?
  • Who do we most need to influence? Senior management, asset managers, technical folk, investors, or other external stakeholders?
  • How can we guarantee the best possible future for geomechanics as a discipline?
14:50 - 15:15