Open Access

INTEGRATED ENVIRONMENTAL IMPACT AND PREDICTIVE ANALYTICS FRAMEWORK FOR OFFSHORE DRILLING DISCHARGES AND BENTHIC ECOSYSTEM INTEGRITY

4 Universidad de Buenos Aires, Argentina

Abstract

Offshore oil and gas development remains one of the most technologically intensive and environmentally consequential industrial activities in the marine domain. Among the most persistent and complex challenges associated with offshore drilling is the discharge of drilling fluids, drill cuttings, and produced waters into the marine environment, where they interact with benthic ecosystems that are foundational to oceanic biodiversity, biogeochemical cycling, and long-term ecological stability. The scientific literature has repeatedly demonstrated that these discharges alter sediment composition, elevate trace metal concentrations, and disrupt benthic community structure, often in ways that are subtle, spatially heterogeneous, and temporally persistent. At the same time, the offshore energy sector is undergoing a transformation driven by digitalization and advanced data analytics, creating unprecedented opportunities to integrate ecological monitoring with predictive modeling. This study develops and elaborates an integrated conceptual and analytical framework that combines environmental impact science with machine learning–based predictive analytics to better understand, anticipate, and manage the ecological effects of offshore drilling discharges. Drawing strictly on the foundational ecological research of Ellis, Fraser, and Russell; Rezende and colleagues; Neff; and Daan and colleagues, alongside the methodological and predictive modeling literature on random forest regression, linear regression, gradient boosting, and uncertainty estimation, this article advances a synthesis that connects physical discharge processes, chemical contamination, biological response, and data-driven prediction into a unified interpretive structure.

The central argument of this research is that benthic impacts from offshore drilling are not only governed by the volume and composition of discharges but also by the complex, non-linear interactions between sediment dynamics, trace metal bioavailability, biological sensitivity, and hydrodynamic dispersion. Traditional deterministic and linear statistical approaches have provided valuable insights into these relationships, yet they often struggle to capture the multi-dimensional and non-linear nature of environmental systems. By contrast, ensemble-based machine learning approaches such as random forest regression and gradient boosting offer the ability to model complex interactions, assess variable importance, and quantify predictive uncertainty in ways that are directly relevant to environmental risk assessment and operational decision-making. Using the publicly available drilling log dataset compiled by Elbashir and informed by the comparative methodological studies of Smith, Ganesh, and Liu; Grömping; Coulston and colleagues; Svetnik and colleagues; Gundala; Cai and colleagues; and Otchere and colleagues, this article conceptually demonstrates how predictive models can be trained to link operational drilling parameters with environmental indicators such as sediment contamination and benthic community change.

The results of this integrative analysis indicate that drilling-related variables, including drilling depth, fluid composition, discharge rate, and duration of operations, can be strongly associated with ecological outcomes when modeled through ensemble learning techniques. Moreover, variable importance measures reveal that chemical characteristics of discharges and sediment properties often exert a stronger influence on benthic responses than simple measures of discharge volume, reinforcing earlier ecological findings that toxicity and bioavailability matter as much as quantity. The discussion further explores how predictive uncertainty, when properly quantified, can be used to support precautionary environmental management in sensitive regions such as the Arctic, as highlighted by Pilisi, Maes, and Lewis. Ultimately, this article concludes that the future of offshore environmental stewardship lies in the rigorous integration of ecological science with advanced predictive analytics, enabling regulators and operators to move from reactive mitigation to proactive, data-informed management of marine ecosystems.

Keywords

References

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