C04B 38/02 :
by adding chemical blowing ...
C04B 7/02 :
Portland cement
C04B 7/527 :
obtaining cements character...
C09K 2208/12 :
Swell inhibition, i.e. usin...
C09K 2208/34 :
Lubricant additives
C09K 23/00 :
Use of substances as emulsi...
C09K 23/018 :
Mixtures of two or more dif...
C09K 23/38 :
Alcohols, e.g. oxidation pr...
C09K 23/42 :
Ethers, e.g. polyglycol eth...
C09K 8/03 :
Specific additives for gene...
C09K 8/032 :
Inorganic additives
C09K 8/035 :
Organic additives
C09K 8/04 :
Aqueous well-drilling compo...
C09K 8/08 :
containing natural organic ...
C09K 8/20 :
Natural organic compounds o...
C09K 8/22 :
Synthetic organic compounds
C09K 8/24 :
Polymers
C09K 8/28 :
containing organic additives
C09K 8/32 :
Non-aqueous well-drilling c...
C09K 8/36 :
Water-in-oil emulsions
C09K 8/40 :
Spacer compositions, e.g. c...
C09K 8/424 :
using "spacer" compositions
C09K 8/46 :
containing inorganic binder...
C09K 8/467 :
containing additives for sp...
C09K 8/48 :
Density increasing or weigh...
C09K 8/487 :
Fluid loss control additive...
C09K 8/506 :
containing organic compounds
C09K 8/508 :
macromolecular compounds C0...
C09K 8/514 :
of natural origin, e.g. pol...
C09K 8/74 :
combined with additives add...
C10M 105/18 :
Ethers, e.g. epoxides
C10M 105/62 :
containing hydroxy groups
C10M 107/34 :
Polyoxyalkylenes
C10M 111/04 :
at least one of them being ...
C10M 173/00 :
Lubricating compositions co...
C10M 173/02 :
not containing mineral or f...
C10M 2201/062 :
Oxides; Hydroxides; Carbona...
C10M 2201/08 :
Inorganic acids or salts th...
C10M 2201/103 :
Clays; Mica; Zeolites
C10M 2207/003 :
used as base material
C10M 2207/046 :
Hydroxy ethers
C10M 2209/104 :
of alkylene oxides containi...
C10M 2209/1045 :
used as base material
C10M 2209/108 :
etherified
C10M 2215/042 :
containing hydroxy groups; ...
C10M 2215/08 :
Amides
C10M 2215/265 :
used as base material
C10M 2215/28 :
Amides; Imides
C10M 2217/044 :
Polyamides
C10N 2020/017 :
Specific gravity or density
C10N 2020/02 :
Viscosity; Viscosity index
C10N 2020/04 :
Molecular weight; Molecular...
C10N 2030/06 :
Oiliness; Film-strength; An...
C10N 2040/22 :
with essential removal of m...
C10N 2040/40 :
Generators or electric moto...
C10N 2050/013 :
Water-in-oil
E21B 21/00 :
Methods or apparatus for fl...
E21B 21/002 :
Down-hole drilling fluid se...
E21B 21/003 :
Means for stopping loss of ...
E21B 33/14 :
for cementing casings into ...
E21B 43/25 :
Methods for stimulating pro...
Y02W 30/91 :
Use of waste materials as f...