文明寨油田拔套侧钻工艺技术

2000年 22卷 第3期
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SIDETRACKING TECHNOLOGY IN WENMINGZHAI OILFIELD
张召平 郭宝玉 乔山义 裴绪建
Zhang Zhaoping Guo Baoyu Qiao Shanyi Pei Xujian
中原石油勘探局钻井四公司, 河南清丰 457321
中原油田钻井四公司在文明寨油田钻成了3口拔套侧钻井,与?139.7mm套管开窗侧钻井相比,很好地解决了小尺寸钻头机械钻速低和小井眼固井质量差两大难题,开辟了油气井大修新途径。文中详细叙述了拔套侧钻工艺技术,对今后进一步开展拔套侧钻施工具有一定的指导意义。
A new sidetracking technology is conducted in Zhongyuan Oilfield, which leads the sidetracking in the original open hole with the casing pulled out. Comparing with window milling in the 139.7mm casing, this technology avoids the use of small size bit and the difficulty of cementing in the slim-hole, thus greatly improves ROP and the cementing quality. Casing pulling operations and sidetracking in 3 wells are described in detail, and it proves to be a good alternative to conventional sidetracking in cased wells.
套管; 套管磨铣; 侧钻; 钻井液;
casing; casing window; sidetracking; drilling fluid;
10.3969/j.issn.1000-7393.2000.03.009