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介绍老井侧钻水平井在国内外的运用情况、适合侧钻水平井的地质条件、侧钻水平井的关键技术 :钻井参数优选、套管开窗技术 ,定向工艺技术 ,完井工艺技术。着重强调 ,老井侧钻水平井用在老油田可以降低钻井成本 ,提高原油采收率 ,老油田应加快采用老井侧钻水平技术以提高我国老油田的原油采收率
This paper introduces the application of horizontal well at old and abroad in horizontal and vertical wells, and is suitable for the geological conditions of sidetracking horizontal wells. The key technologies of sidetracking horizontal wells are: drilling parameters optimization, casing windowing, directional technology and completion technology. Emphasize emphatically that the use of old horizontal drilling horizontal wells in old oilfields can reduce the drilling cost and increase the recovery rate of crude oil. The old oilfields should speed up the use of the horizontal drilling technology of old wells to improve the recovery rate of crude oil in China’s old oilfields