Isolating particles for preventing channeling in production section of oil-gas well, completion method and production method using the same

摘要

Isolating particles for preventing channelling in a production section of an oil-gas well, a completion method, and a production method are provided. The isolating particles for preventing channelling are macromolecule polymer particles having an average particle diameter of 0.05-1.0 mm and a real density of 0.8-1.4 g/cm3. The particles are closely filled into the space of oil-gas which is required to be filled and packed, and bypass channels are eliminated after filling. The isolation particles effectively isolate the oil-gas well into multiple relatively independent regions for production of the oil-gas well, and improve the production