公开(公告)号：ES2538800T3

公开(公告)日：2015-06-24

申请号：ES11791558

申请日：2011-12-06

Applicant: BASF SE

Inventor： ELING BEREND ,  AUFFARTH STEFAN ,  MC DONNELL SHANE

IPC: C08J3/03 ,  C08G18/36 ,  C08G18/48 ,  C08G18/76 ,  C08J9/35 ,  C08K3/34

Abstract: Material compuesto que contiene un aglutinante y un aerogel o un aerosil, caracterizado porque el aglutinante es el producto de reacción de un prepolímero a base de poliuretano que puede emulsionarse en agua que presenta grupos isocianato libres, con un sistema acuoso, en particular agua.

公开(公告)号：CA2893099A1

公开(公告)日：2014-06-26

申请号：CA2893099

申请日：2013-12-20

Applicant: BASF SE

Inventor： MC DONNELL SHANE ,  LAFUENTE CERDA OSCAR ,  WALTHER BURKHARD ,  KIERAT RADOSLAW

IPC: C09K8/508 ,  C08G18/38

Abstract: Described herein is a novel method of strengthening a wellbore wherein the method uses a polyurea silicate composition. In the method of strengthening an oil well, a gas well or a water well, a mixture comprising at least one isocyanate component having at least two isocyanate groups per molecule; at least one alkali metal silicate; and water is pumped through the oil well, the gas well or the water well into the annulus of the well; subsequently, the mixture is allowed to form a polyurea silicate composition; before the polyurea silicate composition sets to thereby give a polyurea matrix comprising domains of silicate.