水下立式单通道采油树技术分析及应用案例

Technical Analysis and Application Case of Subsea Single Bore Vertical Christmas Tree

王宇 刘书杰 张崇 王琦

WANG Yu LIU Shujie ZHANG Chong WANG Qi

中海油研究总院有限责任公司，北京　100028 中海石油（中国）有限公司海南分公司，海南海口　570311 Dril-Quip亚太（新加坡）有限公司，新加坡　638417

CNOOC Research Institute Co., Ltd., Beijing 100028, China Hainan Brach of CNOOC (China), Haikou 570311, China Dril-Quip Asia Pacific Pte Ltd., Singapore 638417, Singapore

水下立式单通道采油树是常用的水下油气田的开发设备，作业效率较高，已在国外得到广泛应用。针对我国的水下油气田主要使用水下卧式采油树且很少使用水下立式采油树的现状，有必要介绍水下立式单通道采油树的技术特点及应用。该文详细分析研究了两种不同结构的水下立式单通道采油树的技术特点、应用案例及作业步骤。水下立式单通道采油树既适用于距离现有平台设施几公里之内的边际油田，又适用于控制距离上百公里的水下油气田，建议在我国海上油气田逐步推广水下立式单通道采油树。该文为水下油气田采油树优选提供参考，具有实际工程参考意义。

Subsea single bore vertical Christmas tree is a commonly used development equipment for subsea oil and gas fields, which has high operating efficiency and has been widely used abroad. In view of the current situation that horizontal Christmas trees are predominantly used in subsea fields in China and vertical Christmas trees are rarely used, it is necessary to introduce the technical characteristics and application of subsea single bore vertical Christmas tree. In this paper, the technical characteristics, application cases and operation steps of two different structures of subsea single bore vertical Christmas tree are analyzed and studied in detail. Subsea single bore vertical Christmas tree is not only suitable for marginal oil fields within a few kilometers from existing platform facilities, but also suitable for subsea oil and gas fields with a control distance of hundreds of kilometers. It is suggested that subsea single bore vertical Christmas tree should be gradually used in offshore oil and gas fields in China. This paper provides a reference for the optimization of oil tree in subsea oil and gas fields, and has practical engineering reference significance.

国家工信部子课题“水下采油树工程化应用解决方案研究”（MC-201901-S01-02-01）；国家科技重大专项“深水钻完井工程技术”（2016ZX05028-001）。

https://doi.org/10.3969/j.issn.1008-2336.2023.03.094