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U.S. Department of Energy
Office of Scientific and Technical Information

Method of consolidating incompetent sands and composition therefor

Patent ·
OSTI ID:6895687
This is a new and improved sand consolidation method wherein an in-situ curing of a resinous fluid is used to facilitate fluid production essentially free of solids. The formation is treated iwth the following 4 separate fluids of very low viscosities: (1) a surfactant-oil preflush for cleaning perforations, removing water blocks, and promoting preferentially water-wet surface properties to the formation of sands; (2) consolidating fluid or resin formulation; (3) diesel oil spacer for distributing plastic to maximum coverage; and (4) oil-catalyst solution for further overflushing and curing of the consolidating fluid. This consolidating fluid may be either or both furfuryl alcohol resin and furfuryl alcohol resin and furfuryl alcohol alone or in combination with a silane, a surfactant, and water, except that if water is used in the fluid, some furfuryl alcohol must be included.
Assignee:
Halliburton Co.
Patent Number(s):
US 3199590
OSTI ID:
6895687
Country of Publication:
United States
Language:
English