Development of the Ring Block Drill Pipe Casing Wear Tester and Experimental Research

Abstract:

In deep wells and ultra-deep wells the complex geological conditions often result in serious casing wear. In order to be able to accurately measure the wear efficiency and friction coefficient required in the process of the prediction of casing wear, a ring-block drill pipe and casing wear tester is specifically designed and produced, the scheme of tester is proposed, and the design of structure, driving device, and the detecting system of the friction and contact forces of tester is completed. Adopting the ring block drill pipe casing wear tester and simulating down hole conditions P110 casing wear experiments are finished. The results show that the ring block drill pipe casing wear tester meets the requirement of down hole casing wear experiment. P110 casing wear efficiency decreased with the increasing of wear time. The friction coefficient between the P110 casing and the drill pipe sample is about 0.25.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 3582-3585
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.3582
• Online since: January 2013
• Authors: Yan Bin Qin, Yi Hua Dou, Xiao Zeng Wang, Jing Wen Yang
• Keywords: Casing, Drill Pipe, Friction Coefficient (FC), Ring Block, Wear Efficiency, Wear Tester

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