地质装备2024，Vol.25Issue(4)：23-27,5.
蔚县地区砂卵石漏失地层取心钻探施工技术
Core drilling technology for sand and pebble leakage strata in Yuxian
张永泽 1于建丛 1和新1
作者信息
- 1. 河北省地质矿产勘查开发局国土资源勘查中心(河北省矿山和地质灾害应急救援中心),石家庄 050081
- 折叠
摘要
Abstract
Formation leakage is a common and complex situation in drilling process.Once it occurs,it will not only delay the drilling time,lose drilling fluid,damage the target layer,but also cause a series of complex accidents such as well collapse,stuck drilling,and even lead to the abandonment of the drilling hole,resulting in significant economic losses.The strata in Yuxian area are mainly composed of sand and gravel layers,which is easy to cause well collapse and sticking due to formation leakage in coring process.Therefore,wall protection is necessary to stop the leakage once formation leakage occurs.In actual construction,the comprehensive optimization of construction technology from four aspects-mud preparation,clay ball plugging,cement wall plugging and casing wall plugging has achieved good plugging effects,which ensure the borehole meets the design requirements.关键词
取心钻探/砂卵石地层/地层漏失/堵漏措施Key words
core drilling/sandy cobble strata/leakage strata/plugging measure分类
天文与地球科学引用本文复制引用
张永泽,于建丛,和新..蔚县地区砂卵石漏失地层取心钻探施工技术[J].地质装备,2024,25(4):23-27,5.
