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新疆地区因地质构造差异性显著,导致煤层气钻井作业中井壁失稳及钻具卡阻事故频发。传统倒划眼解卡工艺因悬重参数响应迟滞导致井下工况判断困难、钻杆接头起出失败率高。为此,研发了基于高强度合页侧开结构的方形钻杆倒划眼装置,通过改进型钳框锁紧机构实现钻杆可靠固定,配合转盘驱动系统完成倒划眼/倒扣作业。现场验证表明,该装置的模块化钳牙系统可适配不同工况尺寸调节,安装效率提升40%以上,起钻效率提升37%,显著提高了复杂地质条件下的钻井安全性,为新疆煤层气资源的高效开发提供了创新性技术解决方案。

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