TITLE:
R&D and Application of Drill-Free Glass Blind Plate Valve
AUTHORS:
Junyan Liu, Lang Wang, Shiyong Qin, Wei Zhang, Hailong Geng
KEYWORDS:
Easy-to-Drill Blind Plate, Drill-Free Glass Blind Plate Valve, Structural Design, Experimental Verification, Field Application
JOURNAL NAME:
World Journal of Engineering and Technology,
Vol.13 No.4,
November
20,
2025
ABSTRACT: To address the issues of conventional easy-to-drill blind plates, such as failure to achieve internal blowout prevention function, high construction costs, and risks of pipe string wear, a drill-free glass blind valve was developed in this study through an innovative design of the glass rupture disk structure and multiple fragmentation mechanisms, such as pressure-induced fragmentation, shear pin-controlled impact fragmentation, and external tool piercing and fragmentation, realizing the integration of internal blowout prevention function and convenient disposal. Based on the broken principle of glass plate, the structural design of the blind plate valve was conducted, and the key functions and parameters of the blind plate valve were verified through laboratory test. Meanwhile, field applications show that the drill-free glass blind plate valve can effectively solve the problem of needing additional time to drill through the blind plate in the later stage, and can effectively adapt to the operation requirements of easy-to-blowout and easy-to-leak reservoirs in the Tarim Oilfield, significantly reducing the probability of pipe string wear during the construction process. This study provides reliable technical support for the safe and efficient operation of high-risk reservoirs.