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Research Status and Prospects of Leakage Sealing in Fractured-Lined Strata

Yuxuan Yin
Frontiers in Science and Engineering, (2026), Vol.6, No.1, pp.1-8
Published: January 24, 2026
DOI: 10.54691/76j2dt33
PDF: Download Full Text PDF
Abstract

As an important part of unconventional oil and gas resources, deep oil and gas has attracted wide attention in China 's energy field in recent years. Deep oil and gas resources are mostly in complex strata, complex pressure systems and other high-difficulty areas. The drilling strata are more complex, and multi-scale fractures or even karst caves are generally developed. The engineering environment is harsh and the drilling engineering is complex. When drilling into broken and fractured formations, the problem of leakage is particularly prominent. The lost circulation in fractured-vuggy formations has become one of the common and difficult downhole complex accidents in the drilling process. In this paper, the characterization of leakage channels, plugging mechanism, numerical simulation of plugging materials and design criteria of plugging materials in fractured-vuggy formations are described, and the shortcomings are analyzed and the future research directions are prospected.

Keywords: Fractured Porous Strata, Leakage Channel, Leakage Sealing Mechanism, Numerical Simulation, Leakage Sealing Material.
APA Citation: Yuxuan Yin (2026). Research Status and Prospects of Leakage Sealing in Fractured-Lined Strata. Frontiers in Science and Engineering, 6(1), 1-8. https://doi.org/10.54691/76j2dt33

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