单筒双井占位钻具技术在南堡1-3导管架钻井应用及分析

Application and Analysis of Single Barrel Double Well Occupying Drilling Tool Technology in Nanpu 1-3 Jacket Drilling

摘要: 单筒双井钻井技术适用于海上油气田丛式井开发，有效提高了槽口利用率，降低了海洋工程建设成本起到很好的效果。单筒双井占位钻具技术解决一开井段双井轨迹无法分离、扩眼易出现新井眼、水泥用量大、浅层气预防等问题。本文介绍了单筒双井占位钻具技术和在冀东油田导管架钻井应用情况，对施工过程中出现碰套管问题进行原因分析，介绍解决此类问题的办法，优化了该技术实施方案，有效指导了该技术深入应用。

Abstract: The single barrel dual well drilling technology is suitable for the development of cluster wells in offshore oil and gas fields, effectively improving the utilization rate of grooves and reducing the cost of marine engineering construction, achieving good results. The single barrel dual well occupying drilling tool technology solves problems such as the inability to separate the dual well trajectories in the first well opening section, the susceptibility to new wellbore expansion, high cement consumption, and shallow gas prevention. This article introduces the single barrel dual well occupying drilling tool technology and its application in jacket drilling in Jidong Oilfield. It analyzes the causes of casing collision during the construction process, introduces solutions to such problems, optimizes the implementation plan of this technology, and effectively guides the in- depth application of this technology.