<p>The present invention provides a method for the treatment of a subterranean formation which contains sand particles, said method comprising contacting said formation with a positively charged polymer capable of increasing the residual matrix strength of said sand particles whereby to reduce or prevent their migration whilst minimising any decrease in the permeability of said formation. Polymer materials suitable for use in the method of the invention include polyaminoacids, poly (diallyl ammonium salts) and mixtures thereof.</p>
申请公布号
WO2005124097(A1)
申请公布日期
2005.12.29
申请号
WO2005GB02384
申请日期
2005.06.17
申请人
STATOIL ASA;CHAMPION TECHNOLOGIES, INC.;KOTLAR, HANS, KRISTIAN;CHEN, PING