公开(公告)号：US07989402B2

公开(公告)日：2011-08-02

申请号：US11521251

申请日：2006-09-14

Applicant: David Dino ,  James Michael Foley

Inventor： David Dino ,  James Michael Foley

IPC: C09K8/60 ,  C09K8/32

CPC classification number: C09K8/145

Abstract: An aqueous drilling fluid which contains a diquaternary ammonium cation functionalized clay which provides a substantially constant rheological profile, with respect to salinity, when incorporated into well drilling fluids. A clay/organic chemical composition includes: (a) montmorillonite clay and (b) one or more diquaternary ammonium compounds. A further aspect of the invention is a well drilling process which employs a drilling fluid containing the diquaternary ammonium cation functionalized clay described hereafter.

Abstract translation: 含有二季铵盐阳离子官能化粘土的含水钻井液，当结合到钻井液中时，相对于盐度提供基本上恒定的流变学特征。 粘土/有机化学成分包括：（a）蒙脱石粘土和（b）一种或多种二季铵化合物。 本发明的另一方面是钻井方法，该方法采用含有下文所述的二季铵阳离子官能化粘土的钻井液。

公开(公告)号：US20080070811A1

公开(公告)日：2008-03-20

申请号：US11521251

申请日：2006-09-14

Applicant: David Dino ,  James Michael Foley

Inventor： David Dino ,  James Michael Foley

IPC: C09K8/60

CPC classification number: C09K8/145

Abstract: An aqueous drilling fluid which contains a diquaternary ammonium cation functionalized clay which provides a substantially constant rheological profile, with respect to salinity, when incorporated into well drilling fluids. A further aspect of the invention is a well drilling process which employs a drilling fluid containing the diquaternary ammonium cation functionalized clay described hereafter.A clay/organic chemical composition that comprises: (a) montmorillonite clay and (b) one or more diquaternary ammonium compounds.

Abstract translation: 含有二季铵盐阳离子官能化粘土的含水钻井液，当结合到钻井液中时，相对于盐度提供基本上恒定的流变学特征。 本发明的另一方面是钻井方法，该方法采用含有下文所述的二季铵阳离子官能化粘土的钻井液。 一种粘土/有机化学成分，其包含：（a）蒙脱石粘土和（b）一种或多种二季铵化合物。