Published March 2010
Stratum oil recovery increasing via local industrial wastes
U.Sh. MehdiyevIt is known that during last years at time of physic-chemical influence on stratum, preference is returned to use industrial waste. So, for instance, on Azerbaijani oil refinery plant «Azerneftyagh» alkaline wastes (AW), being by-products in oil production, contain in their composition 1-2.5 % of alkali. As for example, alkali (the caustic soda) amongst other superficially active materials advantageously differs in its characteristics. It reduces the surface tension in the boundary of contact with oil coming in contact with oil containing naphthenic acid forming herewith froth emulsion, destroys and washes oils layer, adsorbed on stratum rock particle surfaces. Use of this mechanism of the influence by alkaline solution is a factor of the positive influence on process of increasing oil recovery stratum. For determination of above mentioned alkaline wastes physical-chemical characteristic and studies of displacing abilities prepared from its solution were taken oil samples from Balakhany-Sabunchu-Ramana oil fields and it was revealed that solutions prepared from (AW) and stratum of water in different concentration reduce the surface pull on border of the contact with oil, moisten the quartz plate well, raise the hydrogen factor and oil clew ability. All these factors witness the possibility of the AW solution water use for increasing oil recovery. The article is dedicated to the results of AW water solution using technologies in oil field conditions designed on the basis of conducted experimental investigations.
