Session Managers: Aditya Mukerjee, Computer Modelling Group Ltd, Ronarong Paramatikul, SLB

Maximising recovery from carbonate reservoirs will require more than selecting the right EOR mechanism. Reservoir heterogeneity, complex rock-fluid interactions, evolving fluid properties, well performance, and surface constraints will all influence the effectiveness of recovery strategies and long-term asset value.

This session will explore advances in enhanced recovery and fluids management across the full development lifecycle, from reservoir understanding and injection strategy design to production optimisation and field-wide performance management. Topics may include waterflood optimisation, gas injection, miscible and immiscible displacement processes, chemical EOR, naturally fractured carbonates, conformance improvement, produced fluid management, and integrated reservoir surveillance.


Discussion Leaders:

• Olymer-Grafted Nano Clay for Conformance Control in Carbonate Reservoir by Ismail Mohd Saaid, Associate Professor, Universiti Teknologi PETRONAS
• Maximizing Late-Life Gas Recovery through Integrated Hydrate and Fluids Management: From Screening to Field Implementation by Mohd Ariff Mohd Tajudin, Production Chemist, PETRONAS Carigali Sdn. Bhd.

Session Managers: Arie Krisna P. Lopulisa, SLB, Ivan Wu, Halliburton, and Noorazlenawati Borhan, PETRONAS

Carbon Capture, Utilisation and Storage (CCUS) is expected to play a critical role in supporting global decarbonisation ambitions and achieving net-zero carbon emissions. Carbonate reservoirs present unique characteristics compared to clastic reservoirs. Their highly heterogeneous pore systems, natural fractures, vugs, and complex diagenetic history can significantly influence CO₂ injectivity, plume migration, containment integrity, and long-term storage performance.  Late-life and mature carbonate reservoirs offer significant potential for long-term CO₂ storage due to their widespread distribution, substantial storage capacity, and the extensive subsurface knowledge developed through decades of hydrocarbon exploration and production. This presents a unique opportunity for the oil and gas industry to leverage its expertise in reservoir characterisation, geological modelling, well engineering, and field operations to accelerate the deployment of carbon storage projects. The successful implementation of CCS and CCUS projects in carbonate reservoirs requires a multidisciplinary approach encompassing storage capacity assessment, containment integrity, injectivity evaluation, geomechanics, well and facility integrity, monitoring and surveillance, regulatory compliance, and economic viability. Feasibility studies must address not only the technical suitability of storage sites but also long-term storage security through robust measurement, monitoring and verification programmes to ensure safe and permanent CO₂ containment. This session will provide a comprehensive overview of CCS in carbonate reservoirs, covering site screening, characterisation, modelling, injectivity and containment assessment, monitoring and surveillance, risk management, regulations, and policies, as well as lessons learnt from global case studies.

Subtopics may include but not limited to:

• Screening and Qualification of Carbonate Reservoirs for CO₂ Storage
• Reservoir Characterisation and modeling for CCS Development
• Well, Facility, and Infrastructure Readiness for Carbon Storage
• CO₂ Injection performance, Storage Efficiency, and Operational Optimisation
• Monitoring, Verification, Risk Assessment, and Storage Assurance
• Integrated CCUS Solutions; From CO₂ Storage to Value Creation
• Commercial, Regulatory, and Policy Considerations for CCUS Projects
• Global CCS Case Studies, Lessons Learnt, and Future Opportunities

 

Discussion Leaders:

• A Multi-Scale Modelling Framework for CCS Assessment in a Connected Carbonate Mega-Platform System by Phan Thi Nguyet Minh, Staff Reservoir Geologist, PETRONAS

Session Managers: Nurul Aida M Agil, PETRONAS Carigali Sdn. Bhd. and Harpreet Kaur Dalgit Singh, Weatherford

This session will explore how operators will safely and efficiently deliver wells in carbonate reservoirs while managing geological, drilling, completion, production, and well integrity risks throughout the asset lifecycle. Discussions will focus on practical field applications, lessons learnt, and technologies that will improve well performance and reduce development risk.

Key Discussion Areas:

Characterising Subsurface Uncertainty Before the Bit

• Karst and cave prediction
• Fracture and fault characterisation
• Geohazard identification
• Reservoir quality prediction
• Uncertainty-based well placement

Drilling and Well Placement in Complex Carbonates

• Geosteering challenges
• Lost circulation management
• Narrow drilling windows
• HPHT and sour environments
• Extended-reach wells and horizontal development
• Real-time drilling decision support and digital workflows

Completion Design and Well Productivity

• Managing coning and early water breakthrough
• Sand control and completion challenges
• Smart completions and surveillance systems
• Maximising reservoir contact in heterogeneous carbonates

Well Integrity and Long-Term Asset Reliability

• Cementing challenges in fractured carbonates
• Barrier management
• Corrosion, H₂S and CO₂ impacts
• Integrity monitoring throughout field life
• Integration of drilling, completion and production data

 

Discussion Leaders:

• A Geologically Driven Predictive Model for Lost Circulation Identification in Shallow Carbonate Buildups, South Sarawak, Offshore Malaysia by Teerapong Jiratitipat,
  Senior Geologist, PTTEP
• Self Transformation From Solid Liner To Pre-drilled Liner In The Blink Of Eyes - A Breakthrough Completion Technology That Enhances Operation Performance In Carbonate Wells by Asba Madzidah Abu Bakar, Staff, Well Completion, PETRONAS
• Operational Excellence in Drilling and Completion of Complex Carbonate Reservoirs under PMCD by Chim Liang Hua, Senior Geoscientist, Sarawak Shell Berhad
• Advanced Managed Pressure Wells Techniques Enable Safe and Efficient Drilling Under Severe Loss Circulation Conditions by Harpreet Kaur Dalgit Singh, Technical Sales – North Asia Managed Pressure Drilling, Weatherford

Session Managers: Nurul Aida M Agil, PETRONAS Carigali Sdn. Bhd. and Harpreet Kaur Dalgit Singh, Weatherford

This session will explore how operators will safely and efficiently deliver wells in carbonate reservoirs while managing geological, drilling, completion, production, and well integrity risks throughout the asset lifecycle. Discussions will focus on practical field applications, lessons learnt, and technologies that will improve well performance and reduce development risk.

Key Discussion Areas:

Characterising Subsurface Uncertainty Before the Bit

• Karst and cave prediction
• Fracture and fault characterisation
• Geohazard identification
• Reservoir quality prediction
• Uncertainty-based well placement

Drilling and Well Placement in Complex Carbonates

• Geosteering challenges
• Lost circulation management
• Narrow drilling windows
• HPHT and sour environments
• Extended-reach wells and horizontal development
• Real-time drilling decision support and digital workflows

Completion Design and Well Productivity

• Managing coning and early water breakthrough
• Sand control and completion challenges
• Smart completions and surveillance systems
• Maximising reservoir contact in heterogeneous carbonates

Well Integrity and Long-Term Asset Reliability

• Cementing challenges in fractured carbonates
• Barrier management
• Corrosion, H₂S and CO₂ impacts
• Integrity monitoring throughout field life
• Integration of drilling, completion and production data

Discussion Leaders:

• Unveiling Subsurface Treasure: Integrating Seismic Insights and Karst Event Analysis to Optimize Well Placement and Risk Management by Abdul Muhaimin Hadzwan Shamsul Raji, Reservoir Geoscience, PETRONAS Carigali Sdn. Bhd.
• Carbonate Drilling and Total Losses: Turning Operational Risk into Productivity Insight by Valsan Vevakanandan, Petrophysicist, Sarawak Shell Berhad

Session Manager: Muhammad Faiz, PETRONAS Carigali Sdn. Bhd. and Sukrut Shridhar Kulkarni, PETRONAS

Carbonate developments are increasingly challenged by geological uncertainty, complex flow behaviour, mature asset economics, facilities constraints, challenging fluid characteristics, carbon management requirements, and evolving investment priorities. Successful development will require integrated techno-commercial and facilities strategies that balance subsurface opportunity, development risk, cost, schedule, operational flexibility, and long-term value creation.

This session will explore how operators and practitioners translate technical insights into commercially viable and executable development concepts through uncertainty reduction, cost optimisation, phased development strategies, infrastructure-led solutions, innovative facilities design, brownfield integration, contracting approaches, debottlenecking, and carbon-conscious investment decisions. Areas of interest may include novel offshore and subsea architectures, modular and reconfigurable facilities, infrastructure reuse, high-CO₂ and sour-gas management, advanced flow assurance, digital twins, late-life asset optimisation, fiscal considerations, and strategies to improve production, recovery, reliability, safety, and environmental performance.

Particular emphasis will be placed on practical case studies demonstrating how integrated subsurface, facilities, and commercial decision-making can influence project economics, development flexibility, recovery potential, project execution, and long-term asset sustainability.

The session invites speakers to share practical lessons learnt, innovative approaches, and measurable value-driven outcomes that demonstrate how technical, facilities, and commercial disciplines can work together to unlock the full potential of carbonate reservoirs.

Discussion Leaders:

• Field TnT: Making Marginal Fields Work Through Cost-Driven Design Choices by Marie Therese Toyat, Production Technologist, Sarawak Shell Berhad
• World-First Hybrid Well Clean-Up Concept for Deepwater Sour Gas Carbonate Reservoir Through Integrated Permanent and Temporary Facilities by Nur Hanani Zaidil, Senior Production Technologist, Sarawak Shell Berhad
• Unlocking Carbonate Gas Resources Through Phased Development: Lessons from Block SK408 Offshore Sarawak by Stanley Ng, Strategy, Portfolio & Performance Manager, TotalEnergies E&P Malaysia