METHOD OF GRAVEL PACKING FOR HORIZONTAL WELL

摘要

A method for filling gravel to a collector well is provided to improve the working condition and to reduce the removing process by preventing the water or sand from being continuously discharged through a projection pipe. A method for filling gravel to a collector well comprises the steps of: inserting a projection pipe(20) into an aquifer while injecting the slurry made of the transmission liquid to have the gravel through the projection pipe; and withdrawing the projection pipe by embedding a water collection pipe formed of the screen in the projection pipe. The slurry is selected from the gravel of the volcanic rocks, the composite resin bead, and the porous ceramic ball. The transmission liquid is water.