Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Controlling consolidation of permeable earth formations

Patent ·
OSTI ID:5595729
An oil base driving fluid consisting of an oil phase and asphaltous plastering material is employed to drive a resin formulation into an incompetent earth formation for purposes of consolidating the formation. The driving fluid forms a filter cake or sheath at the fluid-formation interface which insures that the resin is not underdisplaced or overdisplaced. By selecting the amount of solid weighting material or asphaltous plastering material in the oil-base driving fluid a presealed amount of invasion of oil beyond the sheath is permitted, thus flushing the resin from the invaded region to insure an effective and efficient penetration into the oil-bearing formation. (16 claims)
Assignee:
Oil Base Inc.
Patent Number(s):
US 3487877
OSTI ID:
5595729
Country of Publication:
United States
Language:
English