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深水救援井具有高风险、高技术、高投入和高社会敏感性等特点。在深水作业井失控、常规救援措施难以有效实施时,深水救援井是公认的终极救援手段。目前我国救援井数量较少,深水救援井经验几乎为空白。在调研国内外救援井的基础上,对深水救援井一系列关键技术进行了梳理和分析。对救援井的井位选择、轨迹连通、压井和弃井等几项关键技术,进行了技术分析,可为后续的救援井研究提供一定参考。
Deepwater rescue wells have the characteristics of high risk, high technology, high investment and high social sensitivity. Deep-water rescue wells are recognized as the ultimate rescue tool when uncontrolled deep-water wells and routine rescue efforts can not be effectively implemented. At present, the number of rescue wells in China is relatively small, and the experience of deepwater rescue wells is almost empty. Based on the investigation of rescue wells at home and abroad, a series of key technologies of deepwater rescue wells were sorted out and analyzed. Several key technologies of well selection, trajectory connectivity, well killing and abandonment of the rescue well are analyzed, which can provide some reference for the research of rescue wells.