«Environmental protection in oil and gas complex»

Identification of geological-ecological risks of the "Prigorodnoe" production complex operation within the framework of the "Sakhalin-2" oil and gas project

UDC: 502/504
DOI: 10.33285/2411-7013-2023-4(313)-34-41

Authors:

¹ National University of Oil and Gas "Gubkin University", Moscow, Russia

Keywords: geological hazards, the Sakhalin Island, seismicity, "Sakhalin-2", assessment of geological-ecological risks, tsunami hazard, emergency oil spills

Annotation:

Most of the oil and gas deposits in our country are located in the regions with difficult climatic, geological and hydrometeorological conditions, which affect the operational companies’ activities. The "Sakhalin-1" and "Sakhalin-2" Far Eastern projects are no exception. The article presents the results of the study of geological-ecological risks when operating the Prigorodnoye production complex (PC) within the Sakhalin-2 project from the point of view of the expected seismic activity and exogenous processes activity. The results of the risk-analysis carried out for the production complex are presented, the main geological-ecological hazards are identified, including seismic activity in the south of the Sakhalin Island as well as the effect of exogenous processes and hydrometeorological conditions. Various scenarios of emergency oil spills occurrence in the waters of the Aniva Bay and techniques of their elimination depending on the season and other conditions are considered. Recommendations that allow reducing the negative impact on the environment at the stage of project documentation development, construction and operation of the PC "Prigorodnoye" are proposed, taking into account the analysis results.

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