公开(公告)号：US07740071B2

公开(公告)日：2010-06-22

申请号：US11426175

申请日：2006-06-23

申请人： Clayton Smith ,  Darin Oswald ,  Michael D. Daffin

发明人： Clayton Smith ,  Darin Oswald ,  Michael D. Daffin

IPC分类号： E21B43/25

CPC分类号： C09K8/035 ,  C09K8/68 ,  C09K8/74 ,  C09K2208/12

摘要： A clay stabilizer which is capable of inhibiting swelling in a wide variety of clay types and is also capable of restoring permeability in formations which have previously been damaged by clay swelling. Amine salts of differing molecular weights configurations and ionic strength are combined to provide transport into micropores, mesopores and macropores in the formation and to effect cationic change therein. A poly quaternary amine having a high to very high charge density is added along with lower molecular weight amine salts to substantially permanently exchange cations with the clay in the formation.

摘要翻译： 一种粘土稳定剂，其能够抑制多种粘土类型中的溶胀，并且还能够恢复先前已被粘土膨胀破坏的地层中的渗透性。 组合不同分子量构型和离子强度的胺盐以提供输送到地层中的微孔，介孔和大孔，并在其中实现阳离子改变。 具有高至高电荷密度的聚季胺与较低分子量的胺盐一起加入以与地层中的粘土基本上永久性地交换阳离子。