水下储油防污染及保温关键技术研究
Key technologies research on pollution prevention and thermal insulation for underwater oil storage
  • 基本信息
  • 报告类型:  最终报告 编制日期:  2021-03-08 公开范围:  公开 全文页数:  272 ,图155,表55
    中文关键词:  水下储油;油水隔离;油水置换
    英文关键词:  Underwater oil storage; Isolation between oil and water; Oil and water displacement
  • 中文摘要

本研究主要解决常规水下储油技术存在的累计污染和难以储存髙凝点原油的问题,并逐步为工程应用奠定基础。 本报告优化了油水隔离式水下储油模式、开发模式及其适应条件,深化研究了水下储油保温技术、防污染技术、监测预警与应急保护技术,开展了水下储油工艺流程、测控技术、施工技术的应用性研究,完成了一项浅海水下储油技术示例设计和中间试验。 本报告的技术核心是油水柔性隔离置换技术。常规油水置换原理是油水不相溶,自然形成油水界面,但仍会有少量原油随水外排。采用油水柔性隔离置换,避免油水直接接触,从而从根本上解决污染问题,实现正常作业零排放目标。该技术同时允许在油水界面设置保温层,解决保温问题。本技术安全性高,可有效避免雷击风险,极大降低油气呼吸损耗,降低风浪影响

  • 英文摘要

This study is the deepen research on our previous study. Mainly to solve the cumulative pollution problem of the conventional underwater oil storage technology and the difficulty to store high pour point crude oil. Furthermore, lay the foundation for engineering applications gradually. This study optimized the oil-water isolated underwater oil storage mode, development mode and its corresponding application conditions. Deepen the research on underwater oil storage insulation technology, anti pollution technology, monitoring and early warming and emergency protection technology. An applied research has been carried out on underwater oil storage technology process, measurement and control technology and construction technology. And the study has completed a sample design of shallow underwater oil storage technology and a 1/5 scale test. The core technology of the result is oil-water flexible isolation replacement technology. Using the oil-water flexible isolation replacement technology can avoid oil and water contact directly, thus solve the pollution problem fundamentally, and realize the goal of zero emissions of normal operation. This technology also allows to set insulating layer on the oil-water interface, which solving the thermal insulation problem. This technology has the advantage of high safety, can avoid the risk of lightning strike effectively, and reduce breathing losses of oil and gas and storm affected greatly. The result mainly include the following innovations: (1) Underwater oil storage production mode, includes two shallow water and one deep water production mode; (2) Non-pollution oil-water displacement underwater oil storage technology, which proved practicable by experiments; (3) Adjustable oil-water displacement interface insulation technology, which proved practicable by experiments; (4) Underwater oil spilling emergency collection and keep in packaged technology. As mentioned in the result, the oil storage function of underwater oil storage technology is equivalent to that of floating production system and fixed tank platform. It has a wide range of production scale, and it is suitable for not only shallow marginal oil fields, but also progressive exploration and development in new oil fields. It has the advantage of recycling. And it is well aligned with existing drilling, workover, production, processing and transport technology. It has good application prospects, especially for marginal oil field development.