WellDog completes CBM multizone best practices study
Stripper Well Consortium grant funding was directed at improving multizone completion success for coalbed methane wells.
Laramie, Wyo (March 17, 2009)—GST-WellDog announced today that it has completed a study establishing best practices for improving multizone completion success in coalbed methane wells. The study demonstrated how technical evaluation of coalbed production potential can be used to produce more gas and less water from multizone wells.
“We found that the reality of coalbed reservoirs contradicts the conventional wisdom when it comes to multizone completions,” John M. Pope, Ph.D., president & CEO of GST-WellDog. “Our testing revealed a surprising result – the shallower coals in this area hold more gas and less water. Clearly, with seam-by-seam testing it is possible to improve the water-gas production ratio for multizone wells and increase operator profit.”
The study, performed in partnership with Black Diamond Energy Inc. of Buffalo, Wyoming, involved using technical evaluation of the production potentials of eight different coalbed methane seams to guide how twelve multizone wells intersecting those seams would be completed. Initial and off-set production results were correlated to the reservoir tests in order to evaluate how detailed reservoir evaluation affected operator profit and water production from the field development.
The original grant was made to WellDog Inc., which received the bulk of the grant funding prior to its dissolution in December 2007. GST-WellDog purchased essentially all of the assets of WellDog Inc. in November 2007 in order to preserve the benefits of that company’s technologies.
About Stripper Well Consortium
The Stripper Well Consortium (SWC) is an industry-driven consortium that is focused on the development, demonstration, and deployment of new technologies needed to improve the production performance of natural gas and petroleum stripper wells. SWC is comprised of natural gas and petroleum producers, service companies, industry consultants, universities, and industrial trade organizations. The Strategic Center for Natural Gas, the National Petroleum Technology Office, and the New York State Energy Research and Development Authority provide base funding and guidance to the consortium. By pooling financial and human resources, the SWC membership can economically develop technologies that will extend the life and production of the nation’s stripper wells. More information is available on the web at http://www.energy.psu.edu/swc/.
