Session Managers: Ayyub Kamaludin, Brunei Shell Petroleum; Archawin Aroonsri, PTT Exploration and Production Public Company Limited

This session showcases a mix of simulation work validated by field studies, highlighting the diverse approaches taken in injection optimisation across different reservoir types. These include challenging conventional reservoir operating limits to increase oil while holding off gas, assessing the effectiveness of multi-cycle huff and puff in energy supplementation and recovery improvement, employing multi-well deconvolution to re-assess reservoir connectivity and subsequently waterflood planning, and water redistribution in brownfields for better pressure maintenance and more rapid production gain.

Key takeaways will include the importance of data-driven decisions, the application of innovation and advanced technologies, as well as the need to adapt to specific field challenges through proactive and continuous reservoir management.

Discussion Leaders:

• Breaking Boundaries: Reassessing Waterflood Reservoir Operating Envelope to Maximise UR by Salwa Khair Md Tarif, Senior Reservoir Engineer, Brunei Shell Petroleum; Qasman Metussin, Senior ProductionTechnologistt, Brunei Shell Petroleum
• Research on Characterization and Optimisation of Multi-Cycle Water Injection Huff and Puff in Tight Reservoir by Bingchen Lv, Ph.D, China University of Petroleum
• Offshore Brownfield Reservoir Connectivity Assessment and Potential for Production Enhancement Using Multiwell Deconvolution by Vladimir Krichevsky, Senior Reservoir Engineer, Sofoil
• DX Field Water Injection Redistribution Study by Suhenri Kurniawan, Staff Reservoir Engineer, PETRONAS

Session Managers: Nirwanshah Nasharudin, Hibiscus Petroleum; Fairoz Irfan Daud, PETRONAS

Brownfield assets sustainment timeline is the most challenging period during the production phase of the petroleum industry. This is being proven with actual measured data across the globe where maintaining production is no longer as straight forward as it used to be. New challenges such as deterioration in reservoir properties, drop in production delivery and lack of pressure support within the reservoir system will reduce the revenue significantly with increasing cost due to well complexity aged through time and space.

Brownfield water injection is also a part of the Brownfield’s Rejuvenation process which may involve lots of planning and study before the plan is being executed. Most of the reservoirs today will somehow require external energy support or sweeping mechanism to maintain production and extract as much oil and gas within the remaining reserves to best realize the value for money on this late life assets. These low hanging opportunities with fit for purpose process efficiency may unlock potential in maximizing value in a longer run. This technical session will discuss and elaborate specifically on digital solutions efficiency, cost effectiveness approach, facility management and chemical field application for Brownfield Water Injection which may be useful to be adapted or replicated for different objectives and purposes.

Discussion Leaders

• Leveraging Novel Chemistry in PWRI Systems to Enhance Well Injectivity and Optimize Water Treatment Facility Performance by Qasman Metussin, Senior Production Technologist, Brunei Shell Petroleum; Safrinah Isa; Asset Production Chemist, Brunei Shell Petroleum
• Design and Operation Review of Surface Facilities Water Treatment and Injection Systems by Apipol Soponpalarom, Facilities Engineer, Chevron Thailand Exploration and Production, Ltd.
• Integrated Water Management Strategy For Brown Oil Fields of Kuwait by Khlood Al-Enezi, Senior Petroleum Engineer, Kuwait Oil Company
• IOR Facilities Performance Enhancement Management (IFPEM) - Maximizing Asset Value via Injection Excellence by Mohd Arifin Bin Zainudin, Upstream Process Engineer, PETRONAS

Session Managers: Safrinah Isa, Brunei Shell Petroleum; Foo Yoong Yow, PETRONAS Research Sdn Bhd

Reservoir souring occurs when the hydrocarbons in the oil and gas reservoirs are contaminated by microbes, primarily sulfate-reducing bacteria (SRB) which converts sulfate ions to produce Hydrogen Sulfide (H2S), a toxic and corrosive gas. Water injection often exacerbates the souring by introducing sulfate-rich water and nutrients, which promote the growth of SRB. The consequences of reservoir souring not only impact the hydrocarbon quality but also pose safety and environmental concerns, violating strict regulatory compliance. In addition, Microbiologically Influenced Corrosion (MIC) deteriorate the integrity of infrastructures, such as wells, surface equipment and flowlines, leading to higher restoration and operational costs to the assets. It is, hence, imperative to prevent or mitigate reservoir souring by all means.

This session highlights various mitigation strategies of reservoir souring, such as tailor-formulated biocide and nitrate injection as well as the safe operation and effective long-term H2S management strategy. Gaining valuable insights from the laboratory and field case studies, the operators can secure asset integrity, maintain safety and achieve sustainable H₂S control, setting a benchmark for managing reservoir microbiology effectively.

Discussion Leaders: 

• Nitrate Treatment of Injection Water: Remediating and Controlling Microbial Oilfield Reservoir Souring for Operational Excellence by Matt Streets, Principal Scientist and Director, Rawwater
• Managing H2S and Waterflood Challenges in Field X: Strategic Initiatives for Safe, Efficient Operations by Fadhli Saedon, Snr Reservoir Engineer, Brunei Shell Petroleum
• Optimisation of Long Term Biogenic Reservoir Souring Control using MBO Biocide Chemistry by Matthew Snape, Senior Technical Commercial Manager, Vink Chemicals GmbH & Co. KG
• Biocide Efficacy: A Case Study Highlighting The Importance of Effective Monitoring by Douglas Bennet, Country Business Line Leader, Intertek

Session Managers: Suradech Kongkiatpaiboon, Chevron Thailand Exploration and Production; Matt Streets, Rawwater Engineering Company Limited

Water injection remains a cornerstone of enhanced oil recovery (EOR) strategies but evolving operational challenges and sustainability targets demand innovative approaches. This session will explore cutting-edge solutions in water injection and treatment that optimize production while addressing efficiency, digitalization, and environmental concerns.  The session will highlight how overcoming water injection challenges, such as equipment failures and injection redistribution, can improve production performance in mature fields. Digitalization is transforming waterflood management, with real-time surveillance tools enabling data-driven decision-making and enhancing reservoir management efficiency. 

A key focus will also be on subsea water treatment technologies, which eliminate topside infrastructure constraints and enhance reservoir compatibility through precise water chemistry control. Field cases will highlight the benefits of this approach in extending field life while minimizing offshore operational risks. Additionally, low-carbon water injection solutions will be explored, presenting a simulation-based optimization framework that reduces CO₂ emissions while maintaining production targets, aligning with the industry's sustainability goals.  This session will provide an in-depth look at real-world applications of these innovations, fostering discussions on improving waterflood efficiency, ensuring operational resilience, and advancing environmental stewardship. 

Discussion Leaders:

• Revitalizing Field X: Overcoming Water Injection Challenges to Enhance Production by Nur Afiqah, Reservoir Engineer, PETRONAS
• Evolving Digital Adoption in a Mature Waterflooded Field by Mohammad Noor Isa Yahya, Reservoir Engineer/WF Squad Lead, Brunei Shell Petroleum
• Subsea water treatment and injection enhance reservoir management and production by Torbjorn Hegdal, Manager Business Development, Nov
• Simulation-Based Multi-Objective Optimization of Injection Strategies for Low Carbon Emission in Waterflooding Operations by WangJing, Ph.D., China University of Geosciences