Jose Chavarria, Guanha Li, Crystal Hemann, Conoco Phillips
Donovan Sanchez, Renzo Arias, Gustavo Gonzalez, Odessa Separator Inc. (OSI)
The effect of traditional chemical treatments at the pump intake can be minimized due to the fluid level, high GLR, and production packers, among other reasons. Using a slow-release polymer matrix is an effective chemical treatment that was installed in several wells in the Delaware basin with Conoco Phillips. The chemicals were encapsulated in the matrix ensuring maximum absorption and then slow dispersion, and the tool was run under the intake of rod pumps, and gas lift. In rod pumps, the installations were carried out by pulling the production tubing while in the Gas Lifts, the chemical tools were installed via slickline without pulling the BHA. In the gas lifts and in rod pumps, the chemical tool can be replaced whenever the concentration levels reach the minimum effective concentration without pulling the tubing. To track the dispersion rate, the wells were sampled monthly to measure the concentration of scale and corrosion inhibitor and the amount of THPS downhole. The whole tracking history of the wells will offer valuable information about the chemical concentrations expected using downhole chemical treatment compared with the concentrations obtained while using surface treatments and the longevity of the treatment at the production rates and depths installed.