Mitigating Karst Risks in Oilfield Operations: Lessons from Wafra Joint Operations

Recurring karst-related subsidence in the Wafra Joint Operation (WJO) oil fields has caused well abandonment, drilling fluid loss, and significant financial impacts for over 14 years. This study introduces a multidisciplinary approach to identify and mitigate these hazards in the Partitioned Zone (PZ).

The methodology combines geomorphological mapping, InSAR analysis for ground movement, hydrogeological assessments, and advanced geophysical surveys—including 3D passive seismic imaging (SWANS) and seismic reflection—to detect subsurface voids and fractures. Groundwater monitoring will clarify aquifer dynamics influencing karst processes. All data will be integrated into conceptual and numerical models to produce karst hazard risk maps and subsurface characterizations.

Expected deliverables include geological and hydrogeological models, anomaly maps, and actionable recommendations for sinkhole risk mitigation, infrastructure planning, and groundwater management. This integrated approach enhances operational safety, reduces financial losses, and supports sustainable development in a geologically sensitive region.