Scholarlink

<p>Carbonate reservoirs in Central Luconia present strong heterogeneities occurring from the interplay of depositional facies, structural segmentation, and diagenetic overprints. This study applies a core-driven, multi-scale workflow to the AX and TX carbonate platforms, integrating petrography, electrofacies prediction, and seismic attribute analysis to capture heterogeneity from pore to seismic scale. Seven lithofacies (LF1–LF7) were recognized, ranging from coral-algal bindstones and framestones to chalkified wackestones and argillaceous mudstones. Diagenetic processes, particularly cementation, dissolution apply primary control on porosity and permeability. These lithofacies were upscaled into electrofacies using multivariate models trained on cored intervals. Predictions extended into uncored wells and were calibrated against seismic responses. Eleven stratigraphic zones (Z2–Z11) were defined, capturing depositional and diagenetic stages. Reservoir Depositional Element (RDE) maps demonstrate the spatial variability of patch reefs, backstepping geometries, and karst geobodies. Karstified horizons (Z9 and Z11) show enhanced porosity and vertical connectivity, while transgressive cemented units (Z8 and Z10) act as vertical baffles. The integrated links core-scale rock scale with field-scale seismic architecture, providing a replicable approach for predicting carbonate reservoir quality. Comparison of AX and TX fields further reveals that, despite differences in structural setting both exhibit parallel diagenetic imprints, karst enhancement along exposure surfaces and marine cementation tied to transgressive phases. This shared history allows AX and TX to be interpreted within a unified stratigraphic framework, indicating that reservoir connectivity and compartmentalization are controlled by the same depositional and diagenetic cycles. Beyond hydrocarbon development, the results have direct implications for evaluating CO₂ storage potential, highlighting both capacity and risks associated with karst pathways.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Core-driven carbonate characterization: from pore to field-scale development in Central Luconia

  • 期刊论文

  • 发表日期：

    2025年12月15日

查看全文
  • Grisel Jimenez Soto,
  • Ummi Mohamad Rosli,
  • Rizky Sekti,
  • Leonardo Piccoli,
  • Bing Bing Saw,
  • Chin Soon Mun,
  • Makky Jaya,
  • Fahana Zawri,
  • Khaireen Bt Mohamad,
  • Syafira Burhanuddin

摘要

Carbonate reservoirs in Central Luconia present strong heterogeneities occurring from the interplay of depositional facies, structural segmentation, and diagenetic overprints. This study applies a core-driven, multi-scale workflow to the AX and TX carbonate platforms, integrating petrography, electrofacies prediction, and seismic attribute analysis to capture heterogeneity from pore to seismic scale. Seven lithofacies (LF1–LF7) were recognized, ranging from coral-algal bindstones and framestones to chalkified wackestones and argillaceous mudstones. Diagenetic processes, particularly cementation, dissolution apply primary control on porosity and permeability. These lithofacies were upscaled into electrofacies using multivariate models trained on cored intervals. Predictions extended into uncored wells and were calibrated against seismic responses. Eleven stratigraphic zones (Z2–Z11) were defined, capturing depositional and diagenetic stages. Reservoir Depositional Element (RDE) maps demonstrate the spatial variability of patch reefs, backstepping geometries, and karst geobodies. Karstified horizons (Z9 and Z11) show enhanced porosity and vertical connectivity, while transgressive cemented units (Z8 and Z10) act as vertical baffles. The integrated links core-scale rock scale with field-scale seismic architecture, providing a replicable approach for predicting carbonate reservoir quality. Comparison of AX and TX fields further reveals that, despite differences in structural setting both exhibit parallel diagenetic imprints, karst enhancement along exposure surfaces and marine cementation tied to transgressive phases. This shared history allows AX and TX to be interpreted within a unified stratigraphic framework, indicating that reservoir connectivity and compartmentalization are controlled by the same depositional and diagenetic cycles. Beyond hydrocarbon development, the results have direct implications for evaluating CO₂ storage potential, highlighting both capacity and risks associated with karst pathways.