National Assessment of Oil and Gas Project - Williston Basin Province (031) Total Petroleum System

The Total Petroleum System is used in the National Assessment Project and incorporates the Assessment Unit, which is the fundamental geologic unit used for the assessment of undiscovered oil and gas resources. The Total Petroleum System is shown here as a geographic boundary defined and mapped by the geologist responsible for the province and incorporates not only the set of known or postulated oil and (or) gas accumulations, but also the geologic interpretation of the essential elements and processes within the petroleum system that relate to source, generation, migration, accumulation, and trapping of the discovered and undiscovered petroleum resource(s).

全油气系统（Total Petroleum System）应用于国家油气资源评价项目，其包含评价单元（Assessment Unit）——该单元是用于未发现油气资源评价的基础地质单元。本次展示的全油气系统以负责该油气省的地质学家所界定并填绘的地理边界为基准，其不仅涵盖了已知或推测的油气聚集组合，还包含了与已发现和未发现油气资源的烃源、生成、运移、聚集及圈闭相关的石油系统内关键要素与过程的地质解释。