USGS Alaska Petroleum Systems Project - Northern Alaska Province, Central North Slope Assessment Unit Boundaries and Assessment Input Forms, 2020

• Main Author: Houseknecht, David W
• Format: Dataset
• Language: unknown
• Published: U.S. Geological Survey 2020
• Subjects: Energy Resources; north slope; Alaska
• Online Access: https://dx.doi.org/10.5066/p91sk721; https://www.sciencebase.gov/catalog/item/5e20901be4b0ecf25c65ae5a

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered oil and gas resources in the Brookian, Beaufortian and Ellesmerian formations in the Northern Alaska province. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and incorporates a set of known or postulated oil and (or) gas accumulations sharing similar geologic, geographic, and temporal properties within the Total Petroleum System, such as source rock, timing, migration pathways, trapping mechanism, and hydrocarbon type. The Assessment Unit boundary is defined geologically as the limits of the geologic elements that define the Assessment Unit, such as limits of reservoir rock, geologic structures, source rock, and seal lithologies. The only exceptions to this are Assessment Units that border the Federal-State water boundary. In these cases, the Federal-State water boundary forms part of the Assessment Unit boundary. Methodology of assessments are documented in USGS Data Series 547 for continuous assessments (https://pubs.usgs.gov/ds/547) and USGS DDS69-D, Chapter 21 for conventional assessments (https://pubs.usgs.gov/dds/dds-069/dds-069-d/REPORTS/69_D_CH_21.pdf). See supplemental information for a detailed list of files included this data release.