元页 HF -1页岩气水平井钻井关键技术

详细信息

刊出日期: 2014-08-10

Key Technology of Drilling for Yuanye HF-1 Shale Gas Horizontal Well

Publish Date: 10 August 2014

摘要: 元页HF-1井是中石化部署在川东北元坝区块的第一口页岩气预探水平井。通过分析该井的工程地质难点,优化了三开次井身结构,优选出合理的钻井方式、钻井液体系和配套工艺措施,形成了一套适合该区块的页岩气水平井钻井技术方案。该井成功钻达目的层,完钻井深4982 m,水平位移1421.73 m,钻井周期168.88 d,平均机械钻速3.07 m/h,三开井径扩大率仅为4.82%,取得良好的应用效果,为元坝区块页岩气的勘探开发提供了技术支撑
- 井身结构 /
- 井壁稳定 /
- 空气锤 /
- 油基钻井液 /
- 元页HF-1井
Abstract: Yuanye HF-1 is the first shale gas pre-exploration horizontal well in Yuanba block of Northeastern Sichuan. Based on the analysis on the difficult points in engineering geology, the third spud section structure was optimized;rational drilling method, drilling fluid system and drilling process measures are selected to form a set of shale gas horizontal well drilling technical scheme suitable for this area.The well is drilled to the objective layer with drilled depth of 4982m, hori-zontal displacement of 1421.73mm, drilling cycle of 168.88d, average penetration rate of 3.07m/h and the three open well diameter enlargement ratio is only 4.82%.
- well structure /
- borehole stability /
- air hammer /
- oil base drilling fluid /
- Yuanye HF-1 well