Characteristics of discrete and basin-centered parts of the Lower Silurian regional oil and gas accumulation, Appalachian basin: Preliminary results from a data set of 25 oil and gas fields
U.S. Geological Survey Open-File Report 98-216
Appendix T
North Jackson/Lordstown gas field (NJ/L)
| Location: | Trumbull (Lordstown Twp.) and Mahoning (Jackson Twp.) Counties, Ohio |
| Discovery date: | 1963; most development began in 1972 |
| Depth (ft): | 4,300 to 4,900 |
| Hydrocarbon type and GOR: | Gas and local associated oil |
| Structural setting: | Regional southeast-dipping homocline; minor terraces and anticlinal noses |
| Stratigraphic name of reservoir: | "Clinton" sands; reservoirs consist of sandstone of distributary channel and offshore bar origin |
| Trap: | Stratigraphic; no recognizable updip pinchout of sandstone reservoirs |
| Porosity: | F ave = 7.8%, range 5.3 to 9.9% |
| Permeability: | Kave = 8.55 mD |
| Natural fractures: | |
| Diagenetic features: | |
| Water saturation and volume/salinity of produced water: | Sw (ave) = 20% |
| Gas/water and oil/water contacts: | |
| Reservoir pressure: | 1,457 psi (0.34 psi/ft) |
| Bottom-hole temperature: | 108° F |
| Well spacing: | 40 acres |
| Ultimate production (EUR per well): | 50th percentile (F50)=205 MMCF of gas; North Jackson field has produced ~175 BCF of gas through 1991, Lordstown field has produced ~131 BCF of gas through 1993 |
| References: | Kornfeld (1973); McCormac and others (1996); Seibert (1987); Suphasin (1979) |
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