公开(公告)号：US06194355B1

公开(公告)日：2001-02-27

申请号：US09248310

申请日：1999-02-09

申请人： Michael A. Jarrett ,  Harold R. Krause ,  John C. Welch ,  Allen Gabrysch ,  Patricia Potts

发明人： Michael A. Jarrett ,  Harold R. Krause ,  John C. Welch ,  Allen Gabrysch ,  Patricia Potts

IPC分类号： C09K702

CPC分类号： C09K8/04 ,  C09K8/12

摘要： A drilling fluid having a brine base fluid, aluminum chlorohydrate as a viscosifying agent, an alkoxylated surfactant, and an amphoteric polymer encapsulant has been found to have excellent viscoelasticity and suspension characteristics. Surprisingly, it has been discovered that a synergistic effect is present between the aluminum chlorohydrate and the surfactant such that less of each component is required when both are used together to suspend the same amount of solids, than if one or the other is used separately.

摘要翻译： 已经发现具有盐水基础流体，水合氯化铝作为增粘剂，烷氧基化表面活性剂和两性聚合物密封剂的钻井液具有优异的粘弹性和悬浮性。 令人惊奇的是，已经发现，在水合氯铝酸盐和表面活性剂之间存在协同效应，因此当两者都共同使用时悬浮相同量的固体物质需要较少的每种组分，这要比单独使用或另外使用一种。