Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR

Subclass:

MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR

Child Classifications

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• C09K 8/02 Well-drilling compositions
• C09K 8/4 Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
• C09K 8/42 Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
• C09K 8/5 Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
• C09K 8/52 Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
• C09K 8/54 Compositions for inhibition of corrosion in boreholes or wells
• C09K 8/56 Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
• C09K 8/58 Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
• C09K 8/6 Compositions for stimulating production by acting on the underground formation