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随着海上油气开发的日趋成熟,对大型海洋平台的需求量越来越大.而对于海洋平台,不管是建造还是安装都存在着困难.由于平台较重,建造时需要有足够承载力的场地,需要大型的吊车进行作业.安装时需要大型的浮吊,而目前我国最大的浮吊吊装能力有3 800 t,对于超过5 000 t的平台来说,一般采取将平台分成几部分分别建造和安装的方法,这样给平台的海上安装带来了一定的困难,并大幅度增加了海上的工作量.文章简要介绍了这种大型导管架平台的建造与安装. 相似文献
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大型起重船的紧缺以及大型平台模块吊装高昂的安装费用迫使人们寻找经济的替代方法.传统的平台上部模块安装是采用浮吊进行海上模块化吊装的.此方法受到海洋外部环境、浮吊载重量及施工海域的水深条件等限制,致使平台的建造工期长,经济效益差,导致海上油田开发的工程建造费用投资大.简要介绍了海洋平台大型模块整体安装新技术漂浮安装的方法... 相似文献
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以"蓬莱19-3Ⅱ期海上油田导管架及上部模块建造为例,介绍了海洋钢结构导管架及上部模块建造时的涂装质量控制、检验标准和典型的检测方法.该项目为康菲石油中国有限公司(conocoPhillips China Inc.)与中国海洋石油总公司合作,开发的目前中国海上最大油田,并由海洋石油工程股份有限公司承建.该项目导管架,上部模块采用的油漆分别为国际牌及佐敦牌两家,非同以往使用同一品牌的油漆,因此显得较为独特. 相似文献
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海洋石油工程的发展是国家海洋事业的重要组成部分,而海洋工程中的平台制造是海上油气田开发的基础和保证。而随着现在工程越来越向深海区域发展,建造深水导管架必然将成为未来海洋工程发展的主流。以文昌14-3WHPA深水导管架的建造为例,介绍深水导管架在海洋工程中的建造过程、应用的新技术以及技术难点。 相似文献
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海洋石油的开发逐渐向深水区域发展,海上平台的建造,离不开导管架安装;的运输也需要铺设海底输油管线,因此,ROV作为一种新型实用的水下作业工具,的作用越发重要起来。深海石油天然气开采后在海洋石油工程项目中 相似文献
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按我国海洋石油工程的进展预测,在一九八五年前后,造船工业将面临大量建造导管架式海上平台的任务。为此,我们对导管架式海上平台的建造技术进行了历时一年的调查研究。本文结合我国国情提出了该类平台建造的主要技术要求。一、概述导管架平台是一种海上固定平台,主要用于海上采油生产。这种平台一旦建立,就要在极其严峻的海洋环境中连续工作十五至三十年,维修保养受到许多限制。如果平台倒塌,将 相似文献
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导管架下水驳船的“浮托法”安装改造研究 总被引:1,自引:0,他引:1
导管架下水驳船是实施大型深水导管架下水的必要装备。“浮托法”安装模式是大型平台组块海上安装的发展趋势。对“海洋石油229”号导管架下水驳船“浮托法”安装改造前、后的总体性能进行了对比分析。 相似文献
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在海洋平台改造和维修项目中,经常需要进行大型设备的更换和安装等工作。当设备的重量超过平台吊车的起重能力时,设备的吊装就变得十分困难,在现有的2种方法中,利用大型浮吊完成吊装,或者借助平台结构设计辅助的吊装框架完成吊装,后者要比前者从成本上经济得多。以秦皇岛33-1南油田Ⅰ期开发项目中老平台改造新增2台变压器吊装为例,介绍此类施工的常规方法。 相似文献
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介绍某型沉垫自升式海上风电安装平台的总体参数及性能、沉垫设计和船体布置,并结合海上风电施工作业的要求,分析在设计该平台时需要考虑的一些特殊因素。该平台针对海上风电施工作业所进行的特殊优化布置,可为类似风电安装平台的设计提供借鉴。 相似文献
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In this paper, a numerical investigation of a float-over installation for an offshore platform is presented to verify the feasibility of the actual installation. The hydrodynamic performance of a T-barge is investigated in the frequency domain, and the coupled motions are analyzed in the time domain. We then compare with those of the model test and determine that the response amplitude operator and the time series agree quite well. The barge exhibits favorable hydrodynamic behavior in the considered sea state, and the equipment loads are allowable. The mooring system and sway fender forces are within the permissible range. Based on these results,we can verify that the actual installation of the offshore platform is feasible. We accurately simulated many important factors and effectively reduced the risk associated with the offshore installation, which is of great importance. As such, we demonstrate that the numerical simulation of the float-over installation for offshore platforms has practical engineering significance. 相似文献
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In this paper, a numerical investigation of a float-over installation for an offshore platform is presented to verify the feasibility of the actual installation. The hydrodynamic performance of a T-barge is investigated in the frequency domain, and the coupled motions are analyzed in the time domain. We then compare with those of the model test and determine that the response amplitude operator and the time series agree quite well. The barge exhibits favorable hydrodynamic behavior in the considered sea state, and the equipment loads are allowable. The mooring system and sway fender forces are within the permissible range. Based on these results, we can verify that the actual installation of the offshore platform is feasible. We accurately simulated many important factors and effectively reduced the risk associated with the offshore installation, which is of great importance. As such, we demonstrate that the numerical simulation of the float-over installation for offshore platforms has practical engineering significance. 相似文献
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海上风力机安装技术研究(英文) 总被引:1,自引:0,他引:1
Wind power has made rapid progress and should gain significance as an energy resource, given growing interest in renewable
energy and clean energy. Offshore wind energy resources have attracted significant attention, as, compared with land-based
wind energy resources, offshore wind energy resources are more promising candidates for development. Sea winds are generally
stronger and more reliable and with improvements in technology, the sea has become a hot spot for new designs and installation
methods for wind turbines. In the present paper, based on experience building offshore wind farms, recommended foundation
styles have been examined. Furthermore, wave effects have been investigated. The split installation and overall installation
have been illustrated. Methods appropriate when installing a small number of turbines as well as those useful when installing
large numbers of turbines were analyzed. This investigation of installation methods for wind turbines should provide practical
technical guidance for their installation. 相似文献
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在确定总布置方案和主尺度的基础上,针对新型半潜式风车安装平台进行强度验证和结构优化。采用Sesam软件建立平台结构整体模型和水动力模型,基于设计波法对平台自存、操作、航行工况下的整体强度、节点、杆件和局部进行规范校核。充分考虑运输安装一体化的作业形式,给出风机整体运输和吊装方案,完成平台的基础设计工作。研究表明:新型半潜式平台的整体应力分布、杆件和节点利用率、关键区域局部强度基本满足规范要求;一体化运输安装方式充分考虑了经济性和安全性要求,提高了海上风电安装的作业效率。 相似文献