.... Conversely, present day reservoirs are normally under-pressured by as much as 50 percent of their original pressures ( Table 1 ) . Today the consequences of pumping the wrong fluid in a well is devastating and can cause the loss of a well. Table 1 Reservoir Data Tonkawa Morrow Vertical...

... permeability typically found in the Morrow, many wells have been abandoned with relatively high bottom-hole pressures and significant reserves. Sun Gas has recently done considerable testing of the use of hydraulic fracturing in this area. The result has been multifold increases in deliverability...