1995 National Oil and Gas Assessment Cells for Ventura Basin Province

Quarter-mile cell maps illustrate exploration maturity and production types for oil and gas plays within the Ventura Basin Province. The U.S. Geological Survey created these maps in 1994 using proprietary well data current as of December 1990. The dataset covers five conventional plays, including onshore Paleogene and Neogene formations and offshore state waters.

Use Cases

• Classify cell production type (oil, gas, both, or dry) based on its geographic location and associated play number.
• Analyze the spatial distribution of exploration maturity across different play types, such as 'Paleogene - Onshore' or 'Neogene - Offshore State Waters'.
• Map the density and type of historical well production using the quarter-mile cell grid as a spatial unit.
• Compare exploration activity between conventional plays like 'Cretaceous' and offshore plays within the province.

Strengths

• Data is derived from the proprietary Petroleum Information Well History Control System, a major commercial database for U.S. oil and gas wells.
• Covers five distinct conventional oil and gas plays within a defined geological province.

Limitations

• Underlying well data is from December 1990, making it temporally stale for current analysis.
• The cell map is a graphic solution that aggregates proprietary data; original well-level records are not included.
• Specific row counts, column details, and sample data for the cell dataset are unknown.

Provenance

Source

U.S. Geological Survey (USGS), utilizing the Petroleum Information (PI) Well History Control System (WHCS).

Collection Method

Well data retrieved from WHCS and aggregated into coded quarter-mile cells to create graphic maps.

Time Range

Well data current as of 1990-12-01.

Freshness

Data current as of 1990-12-01; maps created in 1994.

Geography

Ventura Basin Province (Province 13), California, including onshore and offshore state waters.