Presenter: Larry Eoff - Halliburton
Abstract:
Selective water-reduction systems (also known as relative permeability modifiers or disproportionate permeability modifiers) with consistent, sustained performance have been pursued by the oil and gas industry for many years. This is understandable because of the ease associated with connecting to the wellhead, simply pumping a treatment, and watching water production decrease (and hopefully oil and gas production increase). While most systems reported in the literature have not experienced sustained usage, a few have experienced success. In recent years, these systems have begun to be incorporated into other areas, such as additives to fracturing fluids, diverters for acidizing treatments, and as leakoff-control agents. While all of these applications are not necessarily geared toward controlling water production, they have resulted in increased experience with the chemicals and increased acceptance of water-reduction applications. This presentation discusses the mechanisms of selective water-reduction systems, case histories for both water reduction and alternate applications, and how this class of compounds and their applications could potentially be improved for increased success in the future. The intended take home message from this talk is that selective systems DO work and are showing great promise for other oilfield operations.
Biography: