1982•OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)Requires access
Petroleum industry in Illinois, 1980
Jacob Van Den Berg, Jaclyn Rendall Elyn
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Abstract
In 1980, hydrocarbon drilling teams working in Illinois discovered six new oil fields, 55 extensions to fields, and 42 new pay zones in existing fields. The teams drilled 1921 wells (76.7% more than in 1979) for a total of 5,446,761 ft (up 79.4%), resulting in a gain of 1043 oil wells, 7 gas wells, and 871 dry holes. Of the 1921 new wells, wildcats (1/2 mill or more from production areas) accounted for 357 wells or 16.7%; 53 of the wildcats were completed as producers for a success rate of 14.8%. In addition, 67 formerly dry holes were reworked or deepened before being recompleted as producers; 23 former producers were recompleted oil producers in new pay zones. Secondary-recovery production (waterflood and pressure-maintenance projects) accounted for 50.6% of the state's total crude oil production of over 22,700,000 bbl.