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CO2 EOR Projects: Opportunities and Challenges in the Middle East

4 – 7 October 2010

Abu Dhabi, United Arab Emirates | Park Rotana Hotel

Schedule of Events

monday 4 October

1800-2000

Collection of Badges and Delegate Packs

Tuesday 5 October

0830-0900

Opening, Welcome and Workshop Introduction

Keynote Speakers: Abbas Al-Alyak, ADMA, Mohamed Doghmi, Schlumberger

0900-1030

Session 1: Panel Discussion (Vision of CO2 EOR in the Middle East)

Session Chairpersons: Abbas Al-Alyak, ADMA, Ghaniya bin Dhaaer, ADCO

The panel will introduce the vision and the drivers for Carbon Dioxide Enhanced Oil Recovery application in the Middle East with special emphasis on the ongoing UAE experience and regional aspirations. Current status of the worldwide implementations and experiences of CO2 EOR will be discussed relative to the context of Middle East anticipated field applications.

How we define success criteria for large scale applications and what could limit rapid adoption of the technology will be expounded.

1030-1100

Morning Coffee Break

1100-1230

Session 2: Road Map for CO2 EOR Project

Session Chairpersons: Othman Zarzur, Masdar, Arafat Al-Yafei, ADNOC

The industry has a long experience with the CO2 EOR projects and a long wish list for a perfect project. It is being proven that there are fundamental building blocks in those projects which are open for significant improvement. That list goes with development of a representative PVT for the reservoir system, up scaling lab-to-field, reservoir characterization suitable for predictive modeling, understanding the multi-phase flow regimes and monitoring and control system for CO2 EOR projects. Most of these fundamental issues have been identified numerous times but full resolution has not yet been achieved.

On the other hand, how important is it that CO2 EOR projects coincide with CCS? What role can CCS play in decarburizing our economies? Is Carbon Capture, Utilization, and Storage the natural evolution of the CO2 EOR concept? What role is policy set to play in the future of CCS?

1230-1330

Luncheon

1330-1500

Session 3: CO2 EOR Essentials: Tools to Get you Started

Session Chairpersons: Hemanta K. Sarma, PI, Kristian Mogensen, Mersk Oil

The session will start with the identification of basic process mechanisms likely to be experienced in a CO2 injection project and will highlight relative importance and the impact of various process parameters. In that context, the importance of preparatory SCAL and PVT/EOS studies in understanding and designing optimal CO2 injection strategy will be discussed, in addition to the problems of asphaltene precipitation and deposition, formation of emulsions and the role of formation water in surface and sub-surface during the process.

1500-1530

Afternoon Coffee Break

1530-1700

Session 4: CO2 EOR Mechanisms

Session Chairpersons: Metin Karakas, Schlumberger, Saleh Al Mansoori, ADNOC

Recovery mechanisms in CO2 flooding range from reduction in oil viscosity to oil swelling and dissolved-gas drive in immiscible processes and reduction of interfacial tension as the miscibility is approached. In this session we will focus on fundamental CO2 recovery mechanisms including displacement and sweep efficiencies, compositional effects on oil recovery, viscous fingering, channelling and gravity segregation. Others topics will cover CO2 volume requirements for secondary and tertiary recovery applications, basic mobility control schemes such as water alternating CO2 injection, recovery performance with pressure near or below miscibility and influence of reservoir heterogeneities and fractures.

Wednesday 6 October

0900-1030

Session 5: Simulation Challenges

Session Chairpersons: Remy Truchetet, Total, Urasaki Daisuke, JODCO

The preparation of a pilot or field development with CO2 injection is designed with the use of numerical simulations taking into account the behaviour of CO2 with the fluids in place and the porous media based on specific PVT and SCAL measurements. The way to accurately represent the CO2 in a simulation model is a real challenge and is different with the various in-house or market simulators. Some trade-offs have to be taken and their impact has to be evaluated. The objectives of this session are to highlight and explicit the various approaches taken, the precise data deemed necessary to have a proper representation, share experience in the use of various simulators and field cases, and finally define the way for the future.

1030-1100

Morning Coffee Break

1100-1230

Session 6: Surveillance and Monitoring Reservoir

Session Chairpersons: Mohamed Doghmi, Schlumberger, Bader Al Matar, KOC

Designing a CO2 EOR pilot and implementing it is long and complex. Pilot testing is usually the best way to collect data and validate the performance of a particular EOR process in the field. Therefore a systematic approach with clearly defined objectives and performance indicators as well as comprehensive surveillance and monitoring program need to be put in place.

This session will discuss:

    • CO2 EOR: Pilot design key objectives and parameters

    • CO2 EOR Monitoring at the well scale, at the reservoir and field scale

    • New technologies to better understand sweep and conformance

    • How the surveillance helps assure a successful CO2 EOR project

1230-1330

Luncheon

1300-1500

Session 7: Well Integrity and Potential HSE Related Challenges under CO2Conditions

Session Chairpersons: Zara Al-khatib, Shell, SikandarAli Memon, ADCO

Drilling, completion and well operations involve a number of HSE challenges. The major challenge is well integrity. This session focuses on the current challenges andpractices related to well integrity particularly during CO2 injection and production as a component of associated gas, water-alternating CO2 and acid gas. Discussion leaders will address:

  • Geo-mechanical considerations of the rock under difficult pressure and temperature conditions in the reservoirs

  • CO2 degradation mechanisms for the different well completion components, such as cement, steel, elastomers, etc. during injection and production

  • Best practices on the maintenance of the integrity of wells, monitoring approaches used for early detection of leakage, and remediation options that could be used to mitigate the leaks

  • Possible blind spots such as conductor integrity, corrosion and material selection and engineering competence, shut-down systems of the christmas tree, wellhead, and down-hole emergency and emergency response in case of failure

Potential well integrity scenarios and their likely repair options with greater requirements related to technology and competence and technical solutions to prevent undesirable incidents will be discussed in workgroups sessions led by discussion leaders.

1500-1530

Afternoon Coffee Break

1530-1730

Session 8: CO2 EOR: Emerging Technologies

Session Chairpersons: Mikhail Tanakov, ADNOC, Metin Karakas, Schlumberger

Although CO2 has the ability to enhance hydrocarbon recovery beyond levels possible with primary and secondary recovery methods, the displacement efficiency could be less than expected due to channelling, fingering and gravity segregation of the injected CO2. The conformance could be a serious challenge in reservoirs with contrasting permeability and/or trending fractures and the control is crucial in optimising the oil recovery and maximising the CO2 storage.

While several large-volume foam-gel injector treatments have been suggested to improve the in depth conformance, the applicability and cost-effectiveness of the approach for carbonate reservoirs is currently being researched. In this session, we will focus on emerging technologies or measures that could have immediate benefit in CO2 EOR applications.

Thursday 7 October

0900-1030

Session 9: Surface Facilities

Session Chairperson: Hisham Saadawi, ADCO

This session will address the surface facilities aspects of CO2-EOR projects. Surface facilities for CO2 flood generally involve substantial capital investment. Topics covered include design of CO2 compression system, CO2 pipelines and material selection issues. Technologies for separating CO2 from hydrocarbon gases are also reviewed.

Since most CO2-EOR projects are implemented on existing oil fields, the session will also discuss how best to evaluate the impact of CO2 on existing surface facilities in terms of equipment performance and corrosion.

Economic benefits for CO2 EOR projects tend to be weighted towards the back end of the project. The importance of having a phased approach to investment will be also discussed

1030-1100

Morning Coffee Break

1100-1230

Session 10: Case Studies - Lessons Learnt

Session Chairpersons: Meshal Esbaitah, Challenge the Era, Zara Al Khatib, Shell

The oil and gas industry's experiences, findings and learnings are significant in CO2 EOR with numerous technological and engineering advances made over the past 35 years. The expertise gained in technology and operational practices used in handling and injecting CO2 should be considered a valuable resource in planning and implementation of current and future CO2 EOR projects. The designing and implementation of CO2 EOR project is going through a complex process. Todays theoretical information on CO2 EOR projects is also vast but its implementation in real field experience poses a real challenge.

The objectives of this case studies session is to present the CO2 EOR real projects experienced focusing on full life cycle of a CO2 EOR projects with the intent of illustrating and sharing the successful and best practiced of technology and operational practices that have been developed for CO2 EOR projects, shortcoming and challenges experienced and various other field findings which may be adaptable to CO2 EOR projects.

1230-1330

Luncheon

1330-1500

Session 11: Opportunities and Way Forward

Session Chairpersons: Sunil Kokal, Saudi Aramco, Marc Durandeau, IFP

This session will explore the opportunities to overcome challenges facing CO2-EOR. Some of these include addressing the CO2 availability issue, new technologies to reduce the cost of CO2 capture, mitigating gravity segregation issues through WAG optimization, use of foams, surfactants, thickeners, addressing the synergies between CO2-EOR and CO2-sequestration, making CO2-EOR as part of the CDM, and recent development in monitoring and surveillance. Ideas exploring the future of CO2-EOR will be discussed in this session.

1500-1530

Afternoon Coffee Break