红石泉地区复杂漏失地层钻探施工工艺的探索与应用  

Exploration and application of drilling techniques for complex leakage formation in Hongshiquan area

作　　者：赵涛[1] ZHAO Tao(216 Geological Team,CNNC,Urumqi,Xinjiang 830011,China)

机构地区：[1]核工业二一六大队,乌鲁木齐830011

出　　处：《地质装备》2023年第6期37-42,共6页Equipment for Geotechnical Engineering

摘　　要：红石泉地区在地质时期中历经多旋回、多期次的强烈构造活动,褶皱断裂构造极为发育,地层物质组成复杂,破碎程度高。钻探施工中因地质客观因素影响,普遍遭遇漏失、掉块、塌孔等复杂孔内问题,导致施工难度高、风险高、成孔率难以保障,对该地区的钻探施工造成了很大影响。针对红石泉工作区内施工难点,本文探索总结了一套适合区内的钻探施工工艺,主要是选用了全液压动力头式钻机和XJS75小口径金刚石绳索取心钻进工艺以及优化了钻孔结构、钻进参数和泥浆配置。通过优化冲洗液配置,选择桥接材料以及其他可行的防漏、堵漏措施,有效改善了孔隙和微裂隙地层的渗漏和微漏失问题,降低了钻进过程中的堵漏时间和材料成本,最终提高了红石泉地区钻孔的施工质量和施工效率,实现了安全钻进,保障了钻孔成孔率,节约了钻探成本,为红石泉地区优质、快速、高效、低成本钻井提供了一定的技术和工艺参考。The Hongshiquan area has undergone multiple cycles and periods of strong tectonic activity during the geological period,with well-developed fold and fault structures,complex formation material composition and high degree of fragmentation.Due to the objective geological factors,drilling construction generally encounters complex problems such as leakage,falling blocks,and collapse,resulting in high construction difficulty,high risk and difficulty in ensuring hole formation rate,which has had a significant impact on drilling in this area.According to the construction difficulties in Hongshiquan working area,this paper explores and summarizes a set of drilling techniques suitable for this area,mainly including a fully hydraulic power head drilling machine and XJS75 small diameter diamond wireline core drilling technology,as well as optimizing the drilling structure,drilling parameters and mud configuration.By optimizing the configuration of flushing fluid,selecting bridging materials and other feasible leak prevention and plugging measures,the problem of leakage and less-leakage in porous and micro-fractured formations has been effectively improved,the plugging time and material cost during drilling process have been reduced,and ultimately the drilling quality and efficiency in Hongshiquan area was improved,which ensure safety drilling and hole formation rate,save drilling costs and provide a certain technical and process reference for high-quality,fast,efficient as well as low-cost drilling in Hongshiquan area.

关 键 词：复杂漏失地层 小口径取心钻进 全液压钻机 成孔率 施工效率 

分 类 号：P634[天文地球—地质矿产勘探]