Increasing permeability of subsurface formations

摘要: This is a method of increasing permeability fractured formation to fluid flow by depositing in the fractures single layer or less solid particle-form, propping agents preselected size and strength. A large volume nonpenetrating which has been treated control leakoff injected lenghten seal fracture walls. Conventional sand added first part carrier fluid, falling rate than 0.1 ft per min, deposited furthest extremeties fracture. Large size, from 0.03 0.25 in. diam. (such as metals, ceramics, plastics) are then deposit sparse-population thereof close well bore possible. An overflush not employed this treatment method. few barrels carrier, containing large-size material, left after treating completed later circulated well. (13 claims)