Following a pipeline deliverability test in December 1986, the contract rates were reduced for two wells completed in the Shunda Rundle B Pool in Western Alberta. A study was subsequently initiated to determine the cause of the substantial decline in deliverability. Initially, it was suspected the wells were experiencing near wellbore damage and that a re-stimulation would improve the wells’ deliverability. A review of the previous massive acid fracture stimulations, the production characteristics, and proper well test analysis techniques showed the wells not to be damaged, but tight and effectively stimulated. The relationship between "flush" production and "stabilized" production has been defined in order that proper economic considerations are understood before any stimulation or re-stimulation treatment is considered in tight gas reservoirs.

You can access this article if you purchase or spend a download.