张力腿平台海上安装技术简述

在深水油气田开发中,浮式平台的海上安装作业是重要组成部分,直接关系到深水油气开发项目的成本、工期甚至项目的成败。张力腿平台所具有的良好的经济、安全和动力特性在深水油气田开发中均已得到了充分的发挥和证实,但相关安装技术一直被少数国外公司垄断。主要针对张力腿平台的海上安装工艺涉及的各个环节进行系统阐述和探究。

张力腿平台海上安装技术的分析与探讨

当今海下资源的开采很热门,张力腿平台(顺应式垂直系泊模式的一种)是对海下资源进行开采的重要工具。张力腿平台的工作原理就是利用其自身所有的特有优势,即可以在海中产生超过平台自身的浮力,另外还会产生预张力。由于张力腿平台的独特的结构使得它的海上安装技术方式不同于以前的桩基式导管架式平台,所以这项技术一直在国外公司的限制下。从深的油田生产装备张力腿的自主研发课题中受到启发,从而开始对于张力腿在海上的安装技术进行了研究。本文对张力腿平台海上安装方案作业进行了系统详细的论述。

海上风电整体安装配套设备选择

整体安装作为海上风电机组施工的新型技术,对配套设备、设施及工装的要求较高,在实践过程中需从多方面甄别、选用。结合江苏响水近海风电场项目4MW大型机组的海上整体安装的相关经验,对整体安装在新型大功率海上机组实践中的探索性应用进行总结,优选配套设备设施;对整体安装做出"省去部分配套产品"的改良型思考,结合整体安装在现阶段应用中的优劣进行分析,提出"从工厂出发,至现场的一步式安装"的未来改良方向。

Overview of flowline bundle technology from concept selection to offshore installation

Flowline bundle system consisting of carrier pipe,sleeve pipe and internal flowlines offers innovative solution for the infield transportation of oil and gas. Due to its features,flowline bundle offers a couple of advantages over conventional flowline in particular for cases where multi-flowlines and high thermal performance is of great interest. The main benefits and advantages of such system include excellent thermal performance to prevent wax formation and hydrates,multiple bundled flowlines,mechanical and corrosion protection,potential reuse, etc. With the developments of offshore oil and gas industries,more and more hydrocarbon resources are being explored and discovered from shallow to deep water. Pipeline bundle system can be a smart solution for certain applications,which can be safe and cost effective solution. The objective of this paper is to overview pipeline bundle technology,outline detailed engineering design issue and procedure. Focus is given to its potential application in offshore for infield transportation. Engineering design principles and procedures for pipeline bundle system are highlighted. Construction methods of flowline bundle onshore are reviewed. Offshore towing and installation of pipeline bundle procedure is outlined.