Research and Development of Anti-High-Pressure Sealing Material and Its Bonding Performance

To solve the problem of field application downhole hydraulic fracturing technology due to difficulty in sealing holes, this study analyzes influence special cement, expansion agents, stabilizers, and fiber material on basic properties, such as setting time, fluidity, compressive strength high-pressure materials through systematic tests based a summary conventional materials. It was determined that with 20–30% cement 4% agent added, length 8 mm volume 1%, had high fluidity large rate, demonstrating early strength. The bond performance tested variable-angle shear test. relationship between fractal dimension coal-rock mass around borehole also explored.