Offshore large-well-spacing horizontal well steam flood steam channeling early warning mechanism and steam channeling treatment method

The invention discloses an offshore large-well-spacing horizontal well steam flood steam channeling early warning mechanism and steam channeling treatment method. The method comprises the steps that 1, an offshore large-well-spacing horizontal well steam flood steam channeling judgment standard is d...

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Hauptverfasser: HAN XIAODONG, LIU YIGANG, WANG QIUXIA, WANG HONGYU, ZHANG HUA, BAI JIANHUA, ZHANG WEI, LIU HAO, ZHOU FAYUAN, WEN JIA
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses an offshore large-well-spacing horizontal well steam flood steam channeling early warning mechanism and steam channeling treatment method. The method comprises the steps that 1, an offshore large-well-spacing horizontal well steam flood steam channeling judgment standard is determined; 2, steam channeling prevention is conducted, specifically, an offshore large-well-spacing horizontal well steam flood steam channeling early warning mechanism is formed, and according to the steam flood steam channeling early warning mechanism, an offshore large-well-spacing horizontal well steam flood steam injection well section-selecting steam injection tubular column is matched, so that the matched steam injection well section-selecting steam injection tubular column can delay the steam channeling time; 3, steam channeling treatment is carried out: after steam channeling occurs, a plugging and adjusting process is adopted for conducting steam channeling treatment on a steam flood well set; and 4, on