Print this pageThe Production of Oil and Gas in Ohio (POGO) database contains production data gathered directly from petroleum companies and individuals plus all production data submitted to the state since 1983. Overall, the database contains more than 500,000 yearly records for more than 58,000 unique wells. The yearly records include some data as old as 1921 and extend through 1997. The database also contains over 84,000 monthly production records.
Using this statewide production data, one can quickly create production histories, decline curves, and calculations such as estimated ultimate recoveries (EUR) for wells around the state from many different producing formations. Simple EUR's have been calculated for all applicable records and imported to an exploration-mapping environment, posted to a statewide base map, and contoured.
The statewide EUR contour map provides a powerful tool for the explorationist. Analysis of areas of high, low, and intermediate ultimate recovery values may challenge some long-held beliefs of "good" or "bad" areas. This analysis method also offers the ability to analyze potential depletion in established production trends by comparing wells drilled before 1980 versus wells drilled in the 1980's and 1990's.
Overlaying the EUR contours on structure contour maps (top of "Big Lime," Top of "Packer Shell," and Knox unconformity surface) statewide illustrates large-scale structural controls on production.
As development, editing, and updating of POGO continues, more accurate and reliable studies will be possible using individual producing formations. This information should prove useful in the decision-making process of evaluating uneconomic wells (for uphole or downhole potential) before they are plugged.
AAPG Search and Discovery Article #90926©1999 AAPG Eastern Section Meeting, Indianapolis, Indiana