Downhole mixing, real-time monitoring improve fracs

Downhole mixing of carbon dioxide (CO2) with fracturing fluid allowed for better control of a hydraulic frac treatment in a Morrow gas zone, according to RealTimeZone Inc., Roswell, NM, developer of the process.The US Department of Energy (DOE) partly funded the test under its program to develop "real-time monitoring of reservoir stimulation procedures via electronic wireline and telemetry."The program includes additional testing to be conducted in 2001 on real-time monitoring of frac jobs.Treatment description Click here to enlarge imageNGX Experimental State No. 1, a 12,300-ft Morrow gas well in the Sand Point field, Eddy County, NM, was the site of the test. The frac treatment (Fig. 1...

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