Woodford Shale Play

The Devonian Period of the Paleozoic Era lasted from 417 million years ago to 354 million years ago. It is known as the Age of Fishes and came to an end in a dramatic mass extinction. 

Stratigraphy of the Woodford Shale. (Adapted from Cardott, B., Overview of Woodford Gas-Shale Play in OkJahorm, Oklahoma Geological Survey, Norman, OK, 2007 AAPG, Correlation of Stratigraphic Units of North America (CASUNA) Project, American Association of Petroleum Geologists, Tulsa, OK, 1987.) 

---

The Woodford Shale play is located in south-central Oklahoma it ranges in depth from 6000 to 11,000 feet (Table 5.6). This formation is a Devonian-age shale bounded by limestone (Osage Limestone) above and undifferentiated strata below (Figure 5.6). Natural gas production in the Woodford Shale began in 2003 and 2004 with vertical well completions only (Cardott, 2004) however, horizontal drilling has been adopted in the Woodford Shale, as in... 

---