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Preformed-Particle-Gel Placement And Plugging Performance In Fractures With Tips, Ze Wang, Baojun Bai
Preformed-Particle-Gel Placement And Plugging Performance In Fractures With Tips, Ze Wang, Baojun Bai
Geosciences and Geological and Petroleum Engineering Faculty Research & Creative Works
Preformed-particle gels (PPGs) have been applied for reducing excessive water production caused by fractures in reservoirs. A portion of the fractures existing in reservoirs is composed of a void part and a fracture tip. The PPG placement behavior and plugging performance could be mainly affected by the fracture tips. A fracture with a tip, called a "partially open fracture" in this paper, was designed to investigate the placement and water-plugging performance of PPG. Cylindrical sandstone cores were used to manufacture partially open fractures. Pressure data of PPG injection, post-gel water breakthrough, and stable injection were analyzed to investigate the PPG …