| Mapping well data of the Arbuckle paleokarst surface in Russell and Barton counties of central Kansas resolves karst cones, dolines, and groundwater-sapped valleys. 3-D seismic data display increased complexity on the Arbuckle surface.; Basement blocks are important factors in Arbuckle paleokarst development. Karst features such as groundwater-sapped valleys and dolines develop parallel to gravity and magnetic lineaments.; A geostatistical analysis of the karst surface using seismic data integrated with well data improves resolution of paleotopographic highs. Analysis of dolines and karst cones yields 10,020 average additional barrels of "attic" oil per mi2 (3,870 BO/km2). Groundwater-sapped features yield 11,020 average additional barrels of oil per mi2 (4,255 BO/km2).; Oil production from karst cones and dolines tapers slowly, reflecting a strong bottom-water drive. Oil-bearing permeable strata within karst cones are typically preserved. Production from groundwater-sapped features tapers more rapidly suggesting a weaker edge-water drive. |
