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利用套管开窗侧钻工艺技术可解决油田某些老区的低效开发问题.吐哈油田鄯618—C井是利用该项工艺技术在老区开发取得成效的典型之一.吐哈油田鄯618—C井利用原鄯618井φ139.7mm套管定向开窗侧钻小井眼井,在克服了定向井钻井过程中原套管强磁对测量仪器干扰,影响轨迹控制,小井眼钻井条件下环空压力激动对敏感地层作用大于常规井的不利条件下,成功地完成了鄯善油田第一口斜向器开窗小井眼定向井.文章结合套管开窗侧钻小井眼钻井的技术特点,针对鄯618—C套管开窗侧钻定向井采取的工艺措施进行了详细介绍,并对老区开展套管开窗侧钻工艺技术应注意的方面提出了必要的建议。
The use of casing window sidetracking technology can solve the inefficient development of some old oilfields.Tuha Oilfield 鄯 618-C well is one of the typical results of the development in the old area using this technology. C-well using the original 鄯 618 wells φ139.7mm casing directional blind fenestration side-hole drilling wells, overcoming the directional drilling well in the original casing ferromagnetic interference to the measuring instrument, the impact of trajectory control, annulus drilling under annulus Under the unfavorable conditions that the pressure is more sensitive to the sensitive strata than the conventional well, the first well of the Shanshan oilfield has been successfully completed. The article combines the technical characteristics of the casing drilling of the sidetracking slim hole drilling,工 618-C casing window sideways drilling directional wells to take the technical measures were introduced in detail, and the old area to carry out casing side-opening sidetracking technology should pay attention to the necessary recommendations.