科学深孔复杂地层钻进技术难题与对策

Technical Problems and Countermeasures for the Drilling Operation in Complex Formations of Scientific Deep Drilling Projects

摘要:

介绍了在复杂地层科学深钻施工时遇到的困难和问题，主要包括破碎地层钻进问题和强缩径地层钻进问题，讨论了解决这些技术难题时采取的应对技术方案和措施，涉及取心钻进工艺方法和器具、钻机、泥浆体系以及极破碎、强缩径地层的特殊钻进、固井工艺和器具。

关键词:科学钻探;复杂地层;技术难题;对策

Abstract:

This article introduces the difficulties and technical problems encountered in the drilling operation in complex formation of scientific deep drilling projects. The main technical problems are broken formation drilling and strong shrinkage formation drilling. Technical measures for resolving the problems, referring to core drilling technologies, drill rig, drilling mud system and special drilling and cementing technologies used for strong shrinkage formation, are discussed.

Key words:scientific drilling; complex formation; technical problems; countermeasures