@Article{fdmp.2026.085796,
AUTHOR = {Xiaoyong Wen, Hongjiang Zou, Zhiwen Li, Jianan Li, Chengwang Wang, Yugong Wang, Wenxiong Wang, Fa Yang, Hanxi Peng, Zhenglan Li},
TITLE = {Experimental Development and Optimization of a Particle-Fiber-Powder Composite Temporary Plugging System for Diversion Fracturing},
JOURNAL = {Fluid Dynamics \& Materials Processing},
VOLUME = {22},
YEAR = {2026},
NUMBER = {7},
PAGES = {--},
URL = {http://www.techscience.com/fdmp/v22n7/68287},
ISSN = {1555-2578},
ABSTRACT = {This study develops a particle-fiber-powder composite temporary plugging system and systematically investigates the dynamic plugging behavior of single-component, binary, and ternary formulations to elucidate the mechanisms governing plug formation and optimize material composition for diversion fracturing applications. Conventional temporary plugging materials often exhibit inadequate plug formation, limited pressure-bearing capacity, and poor plugging stability, compromising stimulation effectiveness in heterogeneous reservoirs. Experimental results show that neither the particle-only nor the particle-powder system can establish a stable load-bearing structure, resulting in poor plugging performance. In contrast, fiber incorporation fundamentally transforms weak particle bridging into a mechanically stable plug, with a distinct concentration threshold governing this transition. The addition of powder to the particle-fiber system further accelerates plug formation and enhances plug compactness by reducing pore connectivity. Among the formulations investigated, the ternary system containing 1 wt% particles, 0.5 wt% fibers, and 4 wt% powder exhibits the highest pressure-bearing capacity, achieving a maximum plugging pressure of 13.97 MPa, whereas increasing the powder concentration to 5 wt% produces the shortest plug formation time. Based on these findings, a synergistic plugging mechanism is proposed in which particles form the primary load-bearing skeleton, fibers reinforce and stabilize the particle framework, and powder densifies the pore structure to improve sealing integrity.},
DOI = {10.32604/fdmp.2026.085796}
}