Interpreted reflection seismic events near the North Central Corporation well, Newark basin, Bucks County, Pennsylvania
In 1985, North Central Oil Corporation drilled a 10,500-ft well in Bucks County, Pennsylvania, to test for oil and gas in Triassic-Jurassic strata of the Newark Group in the Newark basin. Although the drill hole was abandoned, it revealed excellent gas shows throughout the Lockatong Formation and parts of the Stockton Formation. Acoustic and density logs from the well were converted to a synthetic seismogram that ties stratigraphic intervals in the borehole with seismic events on the nearby, 33-mi-long Seitel ND-1 seismic line. Formation contacts, probable intraformational unconformities and lithologic units such as 50-ft-thick fluvial sandstones in the Stockton Formation are identified and traced for tens of miles away from the well. Moreover, beneath the drill site in the Stockton Formation, the 48-fold seismic line shows a large anticline that is subparallel to the border fault. The anticline has no surface expression; but, in combination with the intersecting Revere Anticline, provides an obvious exploration target. The authors interpretation suggests that the No. 1 Cabot-KBI drill hole ends about 1,500 ft above the border fault and the underlying middle Proterozoic basement. High-amplitude seismic events from the Stockton formation on the southeastern flank of the large anticline may indicate undiscovered gas accumulations.
- OSTI ID:
- 80291
- Report Number(s):
- CONF-941015--
- Country of Publication:
- United States
- Language:
- English
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