Development and application of a new composition to control mineral salt depositions in oilfield equipment

Scaling is one of the many problems in oil production. The hardness deposition on the interior face of pipelines reduces the effective diameter, degrades the flow capacity and in some cases leads to complete blockage of the pipes. The source of hardness deposition is the formation water produced together with oil. Mixing of chemically incompatible with each other waters of different composition, changes in temperature, pressure and the separation of gases lead to hardness deposition. To prevent the formation of deposits of mineral salts in oil and gas production based on hydrochloric acid, Dispersant EC 9660A, Laprol 4202-2B-30 and water, a new composition was developed and tested in the field named after G.Z. Tagiyev in the produced water treatment facility. The outcomes of the implementation confirmed the effectiveness of the developed composition. Keywords: salt deposition, hydrochloric acid, paraffin-resin deposits, surface tension, protective effect of inhibitors