Published June 2014
The prospects of application of new methods for the treatment of bottom-hole zone
Sh.Sh. HuseynovIt is known that in oil wells, where products contain heavy oil components such as asphaltene, resin and paraffin particles, often deteriorate permeability of bottom-hole zone, which resulted in reduction of well productivity. This events also occur in cases where after drilling in bottom-hole zone remain untreated areas from drilling fluids. In such cases, the problem arises on cleaning of bottom-hole zone of well different compositions. For this reason, we have developed a method that can be achieved a fusion of heavy components of oil and drilling mud residues using thermo-chemical reactions. In the proposed method as a new composition used the composition based on chromic anhydride. Upon meeting these components with each other exothermic reaction occurs and as a result, sufficient value of heat. Separated heat is sufficient to melt all known components of heavy oils and residues of drilling fluids. As a result, recovers the initial conductivity of the formation, thus increasing the productivity of wells.
