首页>
外国专利>
EXPANDABLE CENTERERS FOR EXPANDABLE PIPE
EXPANDABLE CENTERERS FOR EXPANDABLE PIPE
展开▼
机译:膨胀管用膨胀中心
展开▼
页面导航
摘要
著录项
相似文献
摘要
An expandable bow spring centralizer (8) having a first collar (10A) coupled to and spaced apart from a second collar (10B) through a plurality of bow springs (30) wherein a fin (32) is connected to each bow spring (30), and then connected to one or more adjacent fins (32) upon collapse of the bow springs (30) to form a restraining band (39) that may be ruptured, e.g., upon expansion of the expandable pipe string (80).
展开▼