- At the s ame time, the structure and its experiments of this coring tools are also introd uced.
- By evaluating the performance of coring tools, authors made some improving suggestions.
- The well track of Tasheng well 1 after sidetracking causes the coring tools transverse vibration, thereby destroy the coring yld.
- Operating principle, configuration, of rotatory sidenwall coring tool and its application results in Xingjing Oil Field are described in this paper.
- That is, high core recovery and borehole wall stability would be mainly realized by new type fluidic coring tools and environmental protective drilling fluid system(Epm).
- The analysis of working status of pressdrization mechanism for coring tool in unconsolidated formation is done based on experience and indirect surface display.