重点介绍了松散地层不同地层泥浆特性、配比及护壁效果、措施。
The features and proportions of slurry and effect of borehole wall protection in different loose strata were mainly introduced.
本文介绍一种新的钻探松散地层护壁方法——套管护壁“三板斧”。
This paper introduces a new wall protection method for drilling loose strata casing pipe wall protection.
玻璃钢取心工具是专为提高辽河油田含砾石松散地层取心收获率和岩心完整性而研制的。
The new coring tool that made of glass fiber reinforced plastic is used to improve the coring recovery and integrity in the loose gravel formation in Liaohe Oilfield.
玻璃钢取心工具是专为提高辽河油田含砾石松散地层取心收获率和岩心完整性而研制的。
Glass steel coring tool is specifically developed for improving the core recovery of conglomeratic weak formation and the core integrality in Liaohe Oilfield.
文中介绍了系统取心的施工过程，通过详细分析取心的各个技术环节，总结出松散地层取心经验。
The paper presents the operational process of systematic coring, and sums up the experience of coring in the unconsolidated formation from analyzing each technical links in the coring.
隧洞不良地质段包括断层、低强度的软弱夹层、地质构造发育的结构松散地层、非岩性粘土、高地应力地层和富水地层等。
The tunnel adverse geological faults include faultage, low strength, geological formation and development of loose, non-rock clay, high stress formation and water-rich strata.
隧洞不良地质段包括断层、低强度的软弱夹层、地质构造发育的结构松散地层、非岩性粘土、高地应力地层和富水地层等。
The tunnel adverse geological faults include faultage, low strength, geological formation and development of loose, non-rock clay, high stress formation and water-rich strata.
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