Paper: Toby Shahan, Mark Briney, Robert Reyes, Prentice Creel and Dwyann Dalrymple, Halliburton Energy Services

Producing hydrocarbons from the lower Delaware Formation in SE New Mexico and West Texas is often associated with a high water production. In the Matthews Field in West Texas, an operator was encountering water production of over 600 bbls per day from the prior treated wells. Modifying the stimulation techniques and processes were chosen in an attempt to improve the production results. Multiple stage treatments using coiled tubing with selective placement controls and reduced rates were performed to lower the fracture height growth in an attempt to reduce water production. This method included using conventional fracturing fluids, specialized coiled tubing perforating and controlled fracturing placement, and a relative permeability modifier capable of modifying the relative permeability by coating the formation rock, thereby reducing the potential for water production. This paper will detail how these operations were performed.