Diseño y formulación de un colchón bloqueador de agua de formación para pozos de producción de petróleo.

Abstract

The excessive production of water is the cause of several operational and economic problems for the operating companies of the oil fields. The present work proposes the application of a fluid that is used as a blocking mattress of formation water, said fluid is constituted by three chemical compounds, which fulfill the functions of: Filtration Controller, Activator and Gelling Agent, the latter is based on a Gel of Preformed Particles. Static filtration tests were carried out with HTHP and PPT equipment to determine the plugging effectiveness of the formulated fluids. The characteristics of the retort formed in the filter medium and its rheological properties, mainly its viscosity and pH, were evaluated. Thirty six different formulations were made, the chemical compounds used were dissolved in water. A static filtration test was carried out with each formulated compound, for which filter paper was used as a filter medium, based on the least amount of filtration obtained in the static filtration tests with the HTHP equipment, ten compounds with the best results were selected. With each of the ten selected compounds, two static filtration tests were carried out with each ceramic disc used as a filter medium in the PPT equipment, the characteristics of the formed retort were evaluated, and its viscosities and pH were measured. The compound with the best results was analyzed qualitatively and quantitatively and compared with a commercial product used in the Lago Agrio field, in the Hollín formation, operated by Petroamazonas.