公开(公告)号：US20050155761A1

公开(公告)日：2005-07-21

申请号：US10759408

申请日：2004-01-16

申请人： Matthew Blauch ,  David Ritter ,  Sanjay Vitthal ,  R. Donaldson

发明人： Matthew Blauch ,  David Ritter ,  Sanjay Vitthal ,  R. Donaldson

IPC分类号： C09K8/035 ,  C09K8/36 ,  C09K8/52 ,  E21B43/04

CPC分类号： C09K8/36 ,  C09K8/035 ,  C09K8/52 ,  C09K2208/26

摘要： Wellbore servicing fluids and methods of using the same to service a wellbore in a subterranean formation are provided. A filter cake in the wellbore is contacted with the gravel packing fluid, which comprises an oil-soluble additive capable of removing the filter cake. The additive undergoes hydrolysis to produce an acid upon contacting water provided from, for example, water in the wellbore servicing fluid, connate water in the subterranean formation, water in the filter cake, water produced by the subterranean formation, water pumped into the wellbore, or combinations thereof. The acid dissolves particulates in the filter cake in situ. In an embodiment in which the wellbore servicing fluid serves as a gravel packing fluid, the fluid also deposits gravel along the face of the subterranean formation, forming a barrier against the migration of sand from the formation and into the wellbore.

摘要翻译： 提供井筒维修流体及其使用方法来维护地下地层中的井筒。 井眼中的滤饼与砾石填充液接触，砾石填充液包含能除去滤饼的油溶性添加剂。 添加剂在与例如井筒维修流体中的水，地层中的原生水，滤饼中的水，地层中产生的水，泵送到井筒中的水接触的水接触时产生酸， 或其组合。 该酸原位溶解滤饼中的微粒。 在其中井眼维修流体用作砾石填充流体的实施例中，流体还沿着地下地层的表面沉积砾石，形成防止砂从地层迁移到井眼中的障碍。