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首页> 外文OA文献 >Detail Engineering Completion Rating Index System (DECRIS) for Optimal Initiation of Construction Works to Improve Contractors’ Schedule-Cost Performance for Offshore Oil and Gas EPC Projects
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Detail Engineering Completion Rating Index System (DECRIS) for Optimal Initiation of Construction Works to Improve Contractors’ Schedule-Cost Performance for Offshore Oil and Gas EPC Projects

机译：详细资料工程完工评级索引系统（签订），以实现建筑工程的最佳启动，以提高海上石油和天然气EPC项目的承包商的进度绩效

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Engineering, Procurement, and Construction (EPC) contractors with lump-sum turnkey contracts have recently been suffering massive profit losses due to re-works and schedule delays in offshore oil and gas EPC megaprojects. The main objective of this research is to develop and implement a detail engineering completion rating index system (DECRIS) to assist EPC contractors to optimize fabrication and construction works schedules while minimizing potential re-work/re-order. This is achieved through adequate detail design development and results in minimizing schedule delays and potential liquidated damages (i.e., delay penalties). The developed DECRIS was based on findings from an extensive review of existing literature, industry-led studies, expert surveys, and expert workshops. The DECRIS model is an evolution, and improvement of existing tools such as the project definition raking index (PDRI) and front-end loading (FEL) developed specifically for the early stage of engineering maturity assessment (i.e., planning, basic design, and front-end engineering design (FEED)), prior to EPC projects. The DECRIS was evaluated and validated with thirteen sample as-built offshore megaprojects completed recently. When the DECRIS was applied to the completed projects post-hoc, a correlation (R-squared 0.71) was found between DECRIS scores and schedule/cost performances. This is much superior to the PDRI-Industrial model’s correlation (R-squared 0.04), which was primarily devised for owners’ basic engineering or FEED completion assessment. Finally, as a means of further validation, project schedule and cost performance of an ongoing project was predicted based on the correlations found on the thirteen completed projects. The resultant predicted schedule and cost performance was well matched with the current project performance status. Based on the accuracy of the DECRIS model found in the validation, said model is an effective prospective tool for EPC contractors to manage their engineering and procurement/construction risks during the initial detail design stages.
机译：工程，采购和施工（EPC）与总包合同承包商最近已经遭受巨大的利润损失，由于重新工程和工期延误的近海石油和天然气EPC大型项目。这项研究的主要目的是制定和实施详细设计完成的评价指标体系（DECRIS）协助EPC承包商来优化制造和工程施工进度，同时尽量减少潜在的返工/重新排序。这是通过适当的细节设计开发和成果在减少进度延迟和潜在的违约金（即逾期罚款）来实现的。所开发的DECRIS是基于从现有的文献，工业为主导的研究，专家调查和专家研讨会进行了广泛审查结果。该DECRIS模型是一种进化，和现有工具的改进，如专门为工程成熟度评估的早期阶段（即，规划，基础设计，和前开发项目定义耙指数（乡村发展综合规划）和前端加载（FEL）末端工程设计（FEED）），前EPC项目。该DECRIS进行了评估，并与最近完成的13样品建成的海上大型项目验证。当DECRIS施加到已完成项目的事后，相关（R平方0.71）被发现DECRIS分数和时间表/成本性能之间。这是很多优于乡村发展综合规划工业模式的相关性（R平方0.04），这主要是设计为业主的基本工程或送进完成评估。最后，作为进一步验证，工程进度和正在进行的项目的成本绩效的手段基础上的相关性进行预测的十三完成的项目中。得到的预测的时间表和成本性能以及当前项目绩效状况相匹配。基于在验证中发现的DECRIS模型的准确性，说模式是EPC承包商的有效潜在的工具来管理他们的工程和采购在最初的细节设计阶段/施工风险。

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