Patent Number: 7,201,224

Title: Dynamic reduction of the moisture layer during the displacement of a viscoelastic fluid using a fluid with lower viscosity

Abstract: The invention relates to a method of optimizing the displacement of a viscoelastic fluid in a pore, tube, duct, channel, fracture, porous medium or interconnected latticework or in an interconnected assembly of pores, tubes, ducts, channels, cavities and/or fractures using a fluid with a lower viscosity. The inventive method consists in displacing the viscoelastic fluid using a displacing fluid which supplies a signal thereto comprising pressure pulses at an optimum frequency. In this way, the moisture layer between the displaced fluid and the walls of the pores, tubes, channels, cavities, fractures or porous medium is dynamically reduced during said displacement, thereby facilitating optimum extraction.

Inventors: Corvera-Poire; Eugenia (Colonia Campestre Churusbusco, Mexico, D.F.C.P. 01040, MX), Lopez de Haro; Mariano (Colonia Campestre Churusbusco, Mexico, D.F.C.P. 01040, MX), Del Rio Portilla; Jesus (Colonia Campestre Churusbusco, Mexico, D.F.C.P. 01040, MX)

Assignee:

International Classification: E21B 43/00 (20060101)

Expiration Date: 2019-04-10 0:00:00