Volume 3,Issue 5
Fall 2025
超低密度泡沫水泥浆固井技术研究与应用
针对恶性漏失井动态承压堵漏周期长、费用高、防漏效果不理想的难题，利用压力平衡固井防漏、泡沫堵漏贾敏效
应，提出了泡沫水泥浆近平衡或欠平衡防漏固井技术，成功避免承压堵漏作业并实现浅表层失返性漏失井的成功堵
漏。该技术在现场应用18口井，成功实现漏失井堵漏和固井作业，提高了固井优良率，完全可以代替分级与尾管固
井工艺，深层漏失井固井周期平均节约承压堵漏周期7天以上，浅表层漏失井平均节约钻井周期30天以上。对解决
深井、高温井固井漏失、浅表层漏失承压堵漏等难题具有重要借鉴意义，具有持续性推广价值。
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