Experimental Development and Optimization of a Particle-Fiber-Powder Composite Temporary Plugging System for Diversion FracturingOA
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.
Xiaoyong Wen;Hongjiang Zou;Zhiwen Li;Jianan Li;Chengwang Wang;Yugong Wang;Wenxiong Wang;Fa Yang;Hanxi Peng;Zhenglan Li
Oil and Gas Technology Research Institute,Changqing Oilfield Company,PetroChina,National Engineering Laboratory for Exploration and Development of Low-Permeability Oil and Gas Fields,Xi’an,ChinaDrilling and Production Engineering Technology Research Institute,CNPC Chuanqing Drilling Engineering Company Limited,National Engineering Laboratory for Exploration and Development of Low-Permeability Oil and Gas Fields,Guanghan,ChinaOil and Gas Technology Research Institute,Changqing Oilfield Company,PetroChina,National Engineering Laboratory for Exploration and Development of Low-Permeability Oil and Gas Fields,Xi’an,ChinaDrilling and Production Engineering Technology Research Institute,CNPC Chuanqing Drilling Engineering Company Limited,National Engineering Laboratory for Exploration and Development of Low-Permeability Oil and Gas Fields,Guanghan,ChinaOil and Gas Technology Research Institute,Changqing Oilfield Company,PetroChina,National Engineering Laboratory for Exploration and Development of Low-Permeability Oil and Gas Fields,Xi’an,ChinaDrilling and Production Engineering Technology Research Institute,CNPC Chuanqing Drilling Engineering Company Limited,National Engineering Laboratory for Exploration and Development of Low-Permeability Oil and Gas Fields,Guanghan,ChinaOil and Gas Technology Research Institute,Changqing Oilfield Company,PetroChina,National Engineering Laboratory for Exploration and Development of Low-Permeability Oil and Gas Fields,Xi’an,ChinaDrilling and Production Engineering Technology Research Institute,CNPC Chuanqing Drilling Engineering Company Limited,National Engineering Laboratory for Exploration and Development of Low-Permeability Oil and Gas Fields,Guanghan,ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,ChinaState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,China
能源科技
Hydraulic fracturingcomposite temporary plugging systemtemporary plugging and diversion fracturingformulation optimizationdiversion pressure
《Fluid Dynamics & Materials Processing》 2026 (7)
P.195-213,19
评论