The Ashcroft #1

Another example of a spud unconventional gas well omitted from the Pennsylvania Department of Environmental Protection’s Act 13 report, this one in the West Falls Formation.

Ashcroft #1

In December 1975, St. Joe Petroleum Corporation spud the Richard J. Ashcroft #1 well in Greene Township, Beaver County, ultimately drilling to a total depth of 7,519 feet in the Queenston Shale (Heyman & Cozart, 1978). The Ashcroft #1 was originally drilled as a test of the Lower Silurian Medina Group (Piotrowski & Harper, 1979), and reportedly completed on December 6, 1975. Although there was a slight show of gas, the well was initially shut-in, pending further production tests (Heyman & Cozart, 1978). The well was later plugged back, and, on February 19, 1976, was reportedly completed in the Devonian Rhinestreet shale (Piotrowski & Harper, 1979). However, after being hydraulically fractured, there was no sustained flow, and as of 1979, the well was again reported as shut-in (Piotrowski & Harper, 1979). The Ashcroft #1 was assigned Permit #BEA-20060 (Heyman & Cozart, 1978), now API #37-007-20060 (Ryder, 2004; Ryder et al., 2012; Trippi & Crangle, 2009). See Figure 1.

Figure 1. Ashcroft #1 Gamma Ray Log 

ashcroftlog

Source: Trippi & Crangle, 2009

References

Heyman, L., & Cozart, C. L. 1978. Oil and Gas Developments in Pennsylvania in 1977. Harrisburg, PA: Pennsylvania Geological Survey, Fourth Series, Progress Report 191.

Piotrowski, R. G., & Harper, J. A. 1979. Black Shale and Sandstone Facies of the Devonian “Catskill” Clastic Wedge in the Subsurface of Western Pennsylvania. Washington, DC: U.S. Department of Energy.

Ryder, R. T. 2004. Stratigraphic Framework and Depositional Sequences in the Lower Silurian Regional Oil and Gas Accumulation, Appalachian Basin: From Ashland County, Ohio, through Southwestern Pennsylvania, to Preston County, West Virginia. Washington, DC: U.S. Geological Survey, Geologic Investigations Series, Map I-2810.

Ryder, R. T., Trippi, M. H., Swezey, C. S., Crangle, R. D., Jr., Hope, R. S., Rowan, E. L., et al. 2012. Geologic Cross Section C–C’ through the Appalachian Basin From Erie County, North-Central Ohio, to the Valley and Ridge Province, Bedford County, South-Central Pennsylvania. Washington, DC: U.S. Geological Survey, Scientific Investigations Map 3172.

Trippi, M. H., & Crangle, R. D., Jr. 2009. Log ASCII Standard (LAS) Files for Geophysical (Gamma Ray) Wireline Well Logs and Their Application to Geologic Cross Section C-C’ through the Central Appalachian Basin. Washington, DC: U.S. Geological Survey, Open File Report 2009-1021.

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