内管注水泥固井工具的研究与分析

Study and Analysis of Inner String Cementing Equipment

内管注水泥技术是针对大尺寸套管和表层套管固井的特点及特殊要求而采用的一种固井技术,具有省时、替量少等特点,在现场得到大量推广应用。内管注水泥器是内管固井技术的关键工具,其性能好坏直接影响到固井质量。对各种内管注水泥固井工具的结构及特点分别进行了分析研究,并就其发展方向提出建议。

As a method concerning both cost and time effective, inner string cementing technique has been popularly used for large-size casing and upper casing cementing operations. The working properties of inner string cementer, a key element for inner string cementing technique, are due to cementing quality. In this article, the structures and properties of some inner string cementing tools are discussed, and comments are put forward on their development trends as well.