C
CHEMISTRY; METALLURGY
C
CHEMISTRY; METALLURGY
C09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09K
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
C09K
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
C09K8/00
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
C09K8/00
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
C09K8/60
Compositions for stimulating production by acting on the underground formation
C09K8/60
Compositions for stimulating production by acting on the underground formation
C09K8/62
Compositions for forming crevices or fractures
C09K8/62
Compositions for forming crevices or fractures
C09K8/70
characterised by their form or by the form of their components, e.g. foams
C09K8/70
characterised by their form or by the form of their components, e.g. foams