舞阳盐矿水平对接井近点反拉施工技术

Near‑point reverse pull technology of horizontal intersected wells in Wuyang Salt Mine

由于单井矿盐开采存在生产效率低、成本高、安全风险高、卤水溶解度不确定、环境影响大等问题,近年来水平对接井钻井技术不断发展和完善。舞阳盐矿JSV005-JSV006井是部署在舞阳凹陷的一组水平对接井,本文从井身结构、钻具组合、钻进参数、钻井液性能、定向井眼轨迹控制及地质导向技术、预防井下故障措施等多方面对两井组的对接连通进行了系统的总结,重点阐述了采用近点反拉技术解决水平位移不足的问题,为今后矿盐的开采提供了技术支撑。

Due to issues such as low production efficiency,high costs,high safety risks,uncertain brine solubility,and significant environmental impact associated with single-well salt mining,the technology for drilling horizontal intersected wells has continuously developed and improved in recent years.The JSV005-JSV006 wells in the Wuyang salt mine are a set of horizontally intersected wells deployed in the Wuyang depression.This paper systematically summarizes the connection and communication of these wells from various aspects,including wellbore structure,drilling assembly,drilling parameters,drilling fluid performance,directional well trajectory control and geological steering technology,and measures to prevent downhole failures.The focus is on addressing the issue of insufficient horizontal displacement using near-point pullback technology,providing technical support for future salt mining operations.