摘要
松软地层取心工具加压机构工作状态的分析一直是依靠经验和间接的地面显示来进行，缺乏理论和实验依据。文章针对加压结构的特点，从理论和实验两方面分析了加压结构的工作状态，给出了在直井和一定角度范围内斜井松软地层取心作业中，加压机构的安全工作状态和设计的指导原则，对提高松软地层取心作业割心的成功率有重要意义。
The analysis of working status of pressdrization mechanism for coring tool in unconsolidated formation is done based on experience and indirect surface display. It is deficiency basis of theory and experiment. On the basis of the features of pressurization mechanism, working status of pressurization mechanism is analysed from theory and experiment sides. In this paper,safe working status of pressurization mechanism and design principle are given in coring operation in unconsolidated formation. It has important significance to increase success ratio of core breaking in coring operation in unconsolidated formation.
出处
《钻采工艺》
CAS
2001年第1期50-52,共3页
Drilling & Production Technology
关键词
石油钻井
疏松地层
取心
取心工具
加压机构
钢球
unconsolidated formation, coring, coring tool, pressurization mechanism, steel ball, analysis
