分体式双塞套管水泥头的设计及应用

Design and application of split-type double plug cement casing head

周战云 张一佳 雍洁

ZHOU Zhanyun ZHANG Yijia YONG Jie

中原石油勘探局固井工程处，河南清丰　457331 新疆油田公司，新疆克拉玛依　834000 辽河油田公司，辽宁盘锦　124010

Cementing Company, Zhongyuan Petroleum Exploration Bureau, Sinopec, Qingfeng 457331, China Xinjiang Oilfield Co., Karamay 834000, China Liaohe Oilfield Co., Panjin 124010, China

双塞套管水泥头对于完成双塞注水泥作业有着重要作用，针对整体式双塞套管水泥头存在搬运困难、胶塞安装及井口安装操作不便等困难，设计开发了分体式双塞套管水泥头，分析了其结构方案的可行性，介绍了其结构组成及结构特点，描述了其性能试验过程，详细介绍了其操作使用方法以及现场应用效果。分体式双塞水泥头可有效克服整体式双塞水泥头的不足，对双级固井注水泥作业的顺利进行有着积极的促进作用。

Double plug cement head plays an important role in the completion of double plug cement injection. The main problems of integral double plug cement head are difficult carrying, hard rubber plug and well head installation. To solve these, split-type double plug cement head was designed and developed. Feasibility of its structure concept was analyzed and making up features were introduced. Also, the performance test process, operation method, and field application effects were detailed described here. The split-type double plug cement head can overcome the shortcomings of integral double plug cement head and promote the smooth two-stage cementing positively.