摘要
分析了国外VETCO、DRIL-QUIP、FMC 3家公司水下井口头系统的特点及密封原理,并对3家公司的密封结构进行综合比较。现场操作表明,VETCO公司的旋转压入式密封用于深海钻井存在一定问题,插入式密封将是未来发展的主流。对VETCO公司和DRIL-QUIP公司的井口头系统装备进行简单对比,给出对比分析结论。根据分析提出水下井口头系统的设计建议和拉封式新型密封的概念,指出亟待解决的几个关键问题。
The seal principles and features of Subsea wellhead system of VETCO, DRIL-QUIP, FMC corporations were analyzed and their packoff assemblies were compared as well. The comparisons with the equipments of VETCO and DRIL-QUIP corporations and offer the table were made. The field operation indicated that intercalated seal would mostly be used for deep-sea drilling in future. According to the analysis, the initial plan of Subsea Wellhead System was made,and the concept of packoff-stretching seat and the problems needed to solve.
出处
《石油矿场机械》
2009年第5期26-30,共5页
Oil Field Equipment
基金
国家高技术研究发展计划(863计划)"海洋技术领域南海深水油气勘探开发关键技术与装备"(2007AA09A102)
关键词
高压井口头
套管挂
密封
拉封式密封
high-pressure wellhead housing
casing hanger
packoff
stretching seal
