深水水下井口研究现状及发展建议

Research status and development suggestions of deep-water subsea wellhead

深水水下井口在水下生产系统中是不可或缺的关键设备,起到承受和隔离井下压力以及连接和支撑防喷器组与套管串的作用。深水水下井口长期被国外公司垄断,“卡脖子”严重,长期依赖进口;近年,为缩小与国外装备的技术差距,我国不断在深水水下井口方面取得显著进步。通过对国外及国内水下井口的研究现状进行介绍,对比国内外深水水下井口技术差距,提出适应于我国的水下井口发展建议。

Deepwater subsea wellheads are essential components of subsea production systems to withstand and isolate downhole pressure and to connect and support the BOP and casing string.Deep-water wellhead has been monopolized by foreign companies for a long time,and the“bottleneck”is serious.In recent years,in order to narrow the technological gap with foreign equipment,our country has made remarkable progress in deep-water subsea wellheads.By introducing the research status of underwater wellheads at home and abroad,and comparing the technological gap of deep-water underwater wellheads at home and abroad,the development suggestions of underwater wellheads suitable for our country are put forward.