水下采油樹關鍵技術研究

李昌亮 田紅平 吳文 宋安陽

摘 要：水下采油樹是深水油氣開發中必不可少的裝備。該課題擬通過掌握水下臥式采油樹及下放機具的設計、制造相關關鍵技術，研制出具有自主知識產權的1 500 m水深、10 000 psi壓力等級、溫度等級為SU（-18 ℃～121 ℃）的水下采油樹樣機，為最終形成國產水下采油樹設計、制造、測試及工程服務能力奠定基礎。課題主要研究內容包括：（1）水下采油樹總體方案設計與結構設計；（2）水下采油樹下放安裝回收工藝及配套工具設計；（3）水下采油樹控制系統設計；（4）水下采油樹材料及制造工藝技術研究；（5）水下采油樹風險評價及可靠性分析；（6）水下采油樹樣機的測試；目前，課題組已完成水下采油樹機械結構、控制系統及下放機具總體方案設計、水下采油樹機械結構基本設計與詳細設計、水下控制模塊的相關設計、下放安裝機具基本設計、水下采油樹原理樣機關鍵部件的制造準備工作、水下采油樹地面測試系統的建立、水下采油樹安裝功能模擬測試方案、FAT測試方案及SIT測試方案、水下采油樹風險評價及可靠性分析。通過該階段課題研究，課題組已基本掌握水下采油樹研發關鍵技術，為下一步水下臥式采油樹國產化應用奠定了堅實基礎，主要關鍵技術包括：（1）水下采油樹及配套系統的總體設計技術；（2）油管懸掛器、穿越器等核心部件的設計技術；（3）水下采油樹水下控制模塊配套測試系統技術；（4）水下采油樹風險評價及可靠性分析技術；（5）水下采油樹材料設計及防腐技術。

關鍵詞：水下臥式采油樹 結構設計 測試系統 可靠性評價

Abstract：Subsea x-mas tree is an essential equipment in the deep-water oil & gas development.This project is to develop a prototype subsea x-mas tree with independent intellectual property，which can withstand 1500 meters depth，10 000 psi pressure and SU（-18 ℃～121 ℃）temperature degree，throughout mastering the design、manufacturer technique of subsea horizontal x-mas tree，and lay the foundation of the design，manufacturer，test and engineering service of the China's own subsea x-mas tree.The project includes：（1）Overall plan design and structure design of the x-mas tree；（2）running，installation，retrieve process and mating tools design of the x-mas tree；（3）control system design of the x-mas tree；（4）material & manufacturing process research of the x-mas tree；（5）risk evaluation and reliability analysis of the x-mas tree；（6）test of the prototype tree.From now，the General Design of Subsea Tree Mechanical，Running Tools and Control System，Detailed Mechanical Design of Subsea Tree，Related Design of Subsea Tree Subsea Control Module，Basic Design of Tree Running & Handling Tools and Manufacturing Preparation of Subsea Tree Principle Prototype Key Parts，as well as the establishment of subsea tree ground verification testing system，Testing Program of Tree Installation Functional Simulation，Program of FAT and SIT and the Risk Assessment and Reliability Analysis of Subsea Tree.By those researches，the research group has basically mastered the key technology and laid a solid foundation for the development of localization application of the subsea horizontal tree.Mainly including：（1）General design of subsea tree and associated equipment；（2）The design of core components，such as tubing hanger and Penetrator；（3）Testing System technology of subsea control module；（4）Risk assessment and reliability analysis technology of Subsea Tree；（5）Materials design and anti-corrosion technology of subsea tree.

Key Words：Subsea horizontal x-mas tree；Structure design；Testing System；Reliability analysis

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