-
公开(公告)号：US07281583B2
公开(公告)日：2007-10-16
申请号：US11088559
申请日：2005-03-24
CPC分类号： C09K8/512
摘要： Methods and compositions for sealing subterranean zones having temperatures in the range of about 80° F. to about 300° F. are provided. In a method of the invention, a sealing composition of the invention of water, a substantially fully hydrated depolymerized polymer and poly lactic acid, with a pH above about 8.5, is introduced into the subterranean zone wherein it becomes substantially rigid and seals the zone when exposed to subterrnean zone temperatures above about 80° F.
摘要翻译： 提供了用于密封温度在约80°F至约300°F范围内的地下区域的方法和组合物。 在本发明的方法中，将本发明的水，基本上完全水合的解聚聚合物和聚乳酸的pH值高于约8.5的密封组合物引入到地下区域中，其中其变得基本上刚性并且当 暴露于高于约80°F的亚区域温度。
-
公开(公告)号：US20050241827A1
公开(公告)日：2005-11-03
申请号：US11088559
申请日：2005-03-24
IPC分类号： F16D69/02 , E21B33/138
CPC分类号： C09K8/512
摘要： Methods and compositions for sealing subterranean zones having temperatures in the range of about 80° F. to about 300° F. are provided. In a method of the invention, a sealing composition of the invention of water, a substantially fully hydrated depolymerized polymer and poly lactic acid, with a pH above about 8.5, is introduced into the subterranean zone wherein it becomes substantially rigid and seals the zone when exposed to subterranean zone temperatures above about 80° F. The methods and compositions are particularly advantageous for use in producing zones because the rigid sealing composition self dissolves over time, freeing the seal and the zone for production of fluids. Moreover, the composition is environmentally compatible.
摘要翻译： 提供了用于密封温度在约80°F至约300°F范围内的地下区域的方法和组合物。 在本发明的方法中，将本发明的水，基本上完全水合的解聚聚合物和聚乳酸的pH值高于约8.5的密封组合物引入到地下区域中，其中其变得基本上刚性并且当 暴露于高于约80°F的地下区域温度。该方法和组合物特别有利于用于生产区域，因为刚性密封组合物自身随时间溶解，释放密封件和产生流体的区域。 此外，组合物与环境相容。
-
搜索结果
2 条记录 (耗时 0.019 秒)
