海洋钻井隔水管浮力块配置方法.pdf

第39卷第6期
油钻探技术
2011年11月
PETROLEUM DRILLING TECHNIQUES
Nov.,2011
く钻井完井
doi:10.3969/j.issn.1001-0890.2011.06.009
海洋钴井隔水管浮力块配置方法
王耀锋,王定亚,任克忍,陈才虎,肖锐
(宝鸡石油机械有限责任公司,隗西主鸡721002)
摘要:浮力块是钻井隔水管系统的重要部件,能改善钻井隔水管的性能。但是如何配置浮力块,对隔水管张
力器的张力、钻井隔水管在海洋深水条件下的应用等都有很大影响。目前国内外对于钻井隔水管浮カ块配置方法
的研究較少,因此,进一步研究其配置方法很有必要。首先,介绍了目前国内外海洋钻井隔水管浮力块配置的基本
经验;然后,以我国南海某海城500m水深为例,采用 ABAQUS有限元软件,讨论了海洋钻井隔水管浮カ块的配置
方法,拟定了5种浮カ块配置方案,并对其进行了详的计算分析。结果表明:拟定的方案2和方案3为較优方案;
与波浪力相比,海沆力对隔水管动力学响应特性的影响更大;浮力块安装位置不同,对隔水管横向变形、等效应力、
弯矩和底部柔性接头转角等力学响应的影响很大。建议:在适当位置配置厚壁膈水管以降低其局部等效应力;浮
力块的安装位置应避开海流流速最大位置;研制钻井隔水管分析系统软件,实现多个有限元软件的联合调用,以提
高分析效率和准确性。
关键词:海上钻井隔水管浮カ块配置方法
中图分类号:TE951文献标识码:A文章编号:1001-0890(2011)06-0035-04
Buoyancy Modules Configuration Method of Marine Drilling Riser
Wang Yaofeng, Wang Dingya, Ren Keren, Chen Caihu, Xiao Rui
(Ba0ji Oilfield Machinery Co Limited, Baoji, Shaanxi, 721002, China)
Abstract: Buoyancy block, an important component of the drilling riser system, can improve riser per
formances. Configuration of buoyancy block impacts riser tension and the application of deep water drilling
iser. Not many researches were conducted in this area in China. This paper introduced buoyancy modules
configuration method based on current experiences. Taking 500 meters water deep in South China as an ex
ample, buoyancy modules configuration is studied using ABAQUS software. It demonstrated that: scenario
2 and 3 are good among the 5 scenarios proposed. Current force plays a more significant role on riser me
chanical response characteristics compared with wave force. Installation location should be away from large
ocean current flow region. Installation location of buoyancy modules imposes great influence on riser me-
chanical response such as lateral displacement, equivalent stress, bending moment and lower flex joint
Based on numerical simulation results, recommendations on buoyancy modules configuration are: using big
thick wall riser to reduce local equivalent stress and the installation location should avoid the sea wave. The
riser analysis system should be developed to significantly improve analysis efficiency and accuracy.
Key words: offshore drilling; riser; buoyancy module; configuration method
浮力块是钴井隔水管系统的重要部件之一,其
作用是提供分布式浮力改善隔水管的局部力学性
收稿日期:2011-04-23;改回日期:2011-10-16
能,同时能减小隔水管管串的湿重,降低隔水管张力
作者简介:王耀锋(1980~),男,映西宝鸡人,2009年获西安石
器的张力,增强平台水深适应能力叫。但是,如何合
大学机械电子工程专业硕士学位,工程师,主要从事海洋水下石油
装备的研究工作
理配置钴井隔水管的浮力块是海洋钻井隔水管设计
联系方式;(028)61670225,Wolf9631018163.com。
中的一大难点2。目前多数文献1只对钴井隔水
基金项目:国家高技术研究发展计划(“863”计划)项目“深水钻
管静态、准静态、动态力学特性进行了系统研究,对井隔水管系统技术研究”(端号:2008A09A106)部分研究内容