NEAR-WELL ZONE CLEANING

Abstract

The size of the zone of wave action on the formation is determined when the sucker rod pump is operated with a rocker-type drive. An axisymmetric fluid flow to a well is considered against the depression permanently acting on a stratum of infinite length. Reversion of fluid flow influences on the change in nature of the rock wettability in vicinity of well. This change stimulates increasing its production rate. The results of experiments on a flat laboratory stratum model are presented.