Preparation and Performance of an Oil-Soluble Polyethylene Wax Particles Temporary Plugging Agent

Abstract

In order to solve the problem of low strength, low permeability recovery rate, and narrow suitable temperature range of the oil-soluble temporary plugging agent, the idea of preparing the oil-soluble polyethylene wax particles temporary plugging agent (OPPTA) using polyethylene wax as the main raw material was proposed. Emulsifier and stabilizer were selected, and the dosage of emulsifier, stabilizer, and stirring speed was optimized. The method for preparing OPPTA was formed. The temporary plugging performance of OPPTA for the natural core was studied. The plugging rate and the recovery rate of core permeability after plugging removal of OPPTA were 99.9% and 90.1%, respectively. The temporary plugging performance of OPPTA was better than that of a conventional oil soluble temporary plugging agent W-11.