Solutions of Polymers in the Oil and Gas Technologies

Abstract

There has been carried out a complex study of polymer solution reaction under hydrodynamic effect. Integrated approach turned out to be a necessary condition for successful solving of the set tasks of scientific and technical character (from fundamental studies to concrete technological process). This allowed to formulate a new structural concept with a “common denominator” such as strong deformation effect on the part of a hydrodynamic field on macromolecules that immediately generates the so called rubber-like high elasticity. The technologies of production oil and gas is based on utilization of rubberlike properties of a polymer solution that arise under definite conditions while going through porous media, nozzles and slotes. There have been obtained eco-technological criteria and practical recommendations as to practical implementation of technologies of production oil and gas.

The Water-Polymer Method of Hydroperforation of Oil and Gas wells

“…The method of hydro-sandblasting perforation (HSP) of oil and gas well casing strings is a fairly effective, 1 but this method has significant disadvantages: in the process of HSP, the inner surfaces of the tubing, fittings and equipment used in the water-abrasive perforation fluid are subject to strong hydro-abrasive wear; as a result of this hydro abrasion, the diameter and profile of the nozzle holes increases, forming a perforation jet, which in turn leads to a gradual decrease in its velocity and to weaker perforation and longer total execution time; due to the hydro-abrasive wear of the sandblasting machine nozzles, there is a need to periodically replace the nozzles, which causes additional costs for the nozzles, which are made by powder metallurgy of hard alloys, and due to an increase in the number of round-trip operations; there is intense wear on the pipes, meaning they need to be replaced; the abrasive sand particles penetrate deep into the rock in the channels which are formed, impairing the productivity of the formation. All this leads to more resources being necessary in the hydro perforation of oil and gas well casing strings.…”