| Patents for C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations (31,745) |
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| 01/23/1997 | WO1997002330A1 Drilling compositions and methods |
| 01/23/1997 | DE19622934A1 Polymer having vinyl amide unit |
| 01/23/1997 | DE19622933A1 Inhibiting formation of clathrate hydrate(s) in petroleum fluid |
| 01/23/1997 | CA2222842A1 Method of increasing the amount of hydrocarbons from an underground reservoir |
| 01/21/1997 | US5596084 Alginate gels |
| 01/15/1997 | EP0753034A1 Drilling mud |
| 01/15/1997 | EP0669844A4 Viscoelastic surfactant based foam fluids. |
| 01/14/1997 | US5594077 Process for preparing polymers which contain aspartic acid |
| 01/14/1997 | US5594050 Fluid loss control agents, oil wells, high temperature |
| 01/14/1997 | US5593955 Enchance oil recovery, dewaxing |
| 01/14/1997 | US5593954 Friction modifier for water-based well drilling fluids and methods of using the same |
| 01/14/1997 | US5593953 Friction modifier for oil-based (invert) well drilling fluids and methods of using the same |
| 01/14/1997 | US5593952 Amphoteric acetates and glycinates as shale stabilizing surfactants for aqueous well fluids |
| 01/07/1997 | US5591701 Mixture of amphoteric foam-generating agent and cationic or anionic surfactant |
| 01/07/1997 | US5591700 Fracturing fluid with encapsulated breaker |
| 01/07/1997 | US5591699 Particle transport fluids thickened with acetylate free xanthan heteropolysaccharide biopolymer plus guar gum |
| 01/07/1997 | US5590716 Oil wells |
| 12/31/1996 | US5589442 Drilling fluids comprising mostly linear olefins |
| 12/31/1996 | US5588489 Cementing zone in well using composition containing slag cement, water to form pumpable slurry, gas to foam slurry, foaming agent |
| 12/31/1996 | US5588488 Cementing multi-lateral wells |
| 12/31/1996 | CA2093186C Squeeze cementing |
| 12/27/1996 | WO1996041834A1 Polymers for use as hydrate inhibitors |
| 12/27/1996 | WO1996041786A1 Method for inhibiting hydrate formation |
| 12/27/1996 | WO1996041785A1 Method for inhibiting hydrate formation |
| 12/27/1996 | WO1996041784A1 Method for inhibiting hydrate formation |
| 12/27/1996 | EP0750027A1 Use of cellulose mixed ethers as additives for earth pressure shields |
| 12/24/1996 | US5587354 Mixture of a terpene and oil |
| 12/24/1996 | US5586608 Method of making an anti-bit balling well fluid using a polyol having a cloud point, and method of drilling |
| 12/20/1996 | CA2175847A1 Method of treating sour gas and liquid hydrocarbon |
| 12/19/1996 | WO1996040836A1 Method of making an anti-bit balling well fluid using a polyol having a cloud point, and method of drilling |
| 12/19/1996 | WO1996040835A1 Environmentally friendly water based drilling fluids |
| 12/19/1996 | WO1996040599A1 Stable suspension of hydrocolloids |
| 12/19/1996 | WO1996040598A1 Stable suspension of hydrocolloids and superplasticizer |
| 12/19/1996 | CA2223731A1 Stable suspension of hydrocolloids |
| 12/19/1996 | CA2223723A1 Stable suspension of hydrocolloids and superplasticizer |
| 12/19/1996 | CA2222536A1 Method of making an anti-bit balling well fluid using a polyol having a cloud point, and method of drilling |
| 12/18/1996 | EP0748782A1 Cementing compositions and the application of such compositions to cementing oil or analogous wells |
| 12/18/1996 | EP0578806B1 Use of polymers having hydrophilic and hydrophobic segments for inhibiting the swelling of reactive argillaceous formations |
| 12/17/1996 | US5585334 Dissolving sulfur into mixture of organic sulfide, a base, and a surfactant |
| 12/17/1996 | US5585333 Hydrocarbon base cementitious drilling fluids and methods |
| 12/17/1996 | CA2119614C Injection procedure for gas mobility control |
| 12/17/1996 | CA2065575C Method and composition for improving the high temperature gel stability of borated galactomannans |
| 12/16/1996 | CA2169144A1 Hydrocarbon-assisted thermal recovery method |
| 12/11/1996 | EP0746543A1 Polyaspartic acid manufacture |
| 12/10/1996 | US5583273 Method for inhibiting hydrate formation |
| 12/10/1996 | US5582792 Corrosion inhibition by ethoxylated fatty amine salts of maleated unsaturated acids |
| 12/10/1996 | US5582250 Overbalanced perforating and fracturing process using low-density, neutrally buoyant proppant |
| 12/10/1996 | US5582249 Preventing the backflow by forming an agglomerated formations |
| 12/05/1996 | WO1996038492A1 Clathrate hydrate inhibitor and method of inhibiting the formation of clathrate hydrates using it |
| 12/05/1996 | WO1996038394A1 Curable gypsum-containing composition and method for stabilization of unconsolidated core samples |
| 12/05/1996 | DE19520269A1 Corrosion inhibitor used during e.g. recovery and transport of natural gas and crude oil |
| 12/05/1996 | CA2231453A1 Clathrate hydrate inhibitor and method of inhibiting the formation of clathrate hydrates using it |
| 12/04/1996 | EP0745111A1 Application of n,n-dialkylamides to control the formation of emulsions or sludge during drilling or workover of producing oil wells |
| 12/03/1996 | US5580844 Encapsulated breaker chemical |
| 12/03/1996 | US5580379 Emulsion in blast furnace slag mud solidification |
| 12/03/1996 | CA2109477C Injection of organic phosphates for subterranean microbial processes |
| 11/28/1996 | WO1996037685A1 Use of a high purity imidazoline based amphoacetate surfactant as foaming agent in oil wells |
| 11/28/1996 | WO1996037684A1 Clathrate hydrate inhibitor and method of inhibiting the formation of clathrate hydrates using it |
| 11/28/1996 | WO1996037683A1 Well inhibition |
| 11/28/1996 | WO1996037572A1 Polymers for drilling and reservoir fluids and their use |
| 11/28/1996 | CA2222775A1 Use of a high purity imidazoline based amphoacetate surfactant as foaming agent in oil wells |
| 11/28/1996 | CA2219808A1 Polymers for drilling and reservoir fluids and their use |
| 11/27/1996 | CN1136576A Composite composed of polymer containing acrylicamide and its use method |
| 11/26/1996 | US5578219 Improved absorption and flocculation properties, oil well drilling applications, cosmetic and anti-pollution applications |
| 11/21/1996 | WO1996025652A3 Improvements in or relating to the preparation of samples for palynological analysis |
| 11/20/1996 | EP0727009A4 Well cleanout system and method |
| 11/20/1996 | CN1136014A Method of activation of clay and activated clay |
| 11/19/1996 | US5576271 Composition and process for stabilizing viscosity or controlling water loss of polymer-containing water based fluids |
| 11/19/1996 | US5575335 Method for stimulation of subterranean formations |
| 11/19/1996 | US5575334 Copper and zinc recovery process from sulfide ores |
| 11/14/1996 | WO1996035858A1 Foam mixture for oil production flooding operations |
| 11/13/1996 | EP0741755A1 Polyaspartic acid having more than 50 % beta form and less than 50 % alpha form |
| 11/13/1996 | EP0741679A1 Storable liquid cementitious slurries for cementing oil and gas wells |
| 11/12/1996 | US5573725 Corrosion inhibition system featuring the reaction product of a polythioether polyol and fatty acid |
| 11/12/1996 | US5573583 Method of activation of clay and activated clay |
| 11/10/1996 | CA2148969A1 Application of low density drilling muds |
| 11/07/1996 | WO1996035040A1 Heavy oil well stimulation composition and process |
| 11/06/1996 | EP0741230A2 Method of detecting the location of well treating fluid |
| 11/05/1996 | USH1611 Of a glycol emulsified in a synthetic hydrocarbon material |
| 11/05/1996 | US5572021 Methods of detecting the locations of well treating fluids |
| 11/05/1996 | US5571452 Process for recovering and moving highly viscous petroleum products |
| 11/05/1996 | US5571318 Well cementing methods and compositions for use in cold environments |
| 11/05/1996 | US5571315 Hydrocarbon gels useful in formation fracturing |
| 10/31/1996 | WO1996034179A1 Carboxyalkyl substituted polygalactomannan fracturing fluids |
| 10/31/1996 | WO1996034177A1 Method for inhibiting the plugging of conduits by gas hydrates |
| 10/31/1996 | WO1996034069A1 Friction modifier for oil-based (invert) well drilling fluids and methods of using the same |
| 10/31/1996 | WO1996034068A1 Friction modifier for water-based well drilling fluids and methods of using the same |
| 10/31/1996 | WO1996033966A1 Gelation additive for hydraulic fracturing fluids |
| 10/31/1996 | DE19533765C1 Boring hard rocks e.g. granite by hydrogen and fluorine combustion avoiding pollution |
| 10/31/1996 | CA2193671A1 Friction modifier for oil-based (invert) well drilling fluids and methods of using the same |
| 10/30/1996 | EP0740048A1 Process for inhibiting or delaying the formation, the growth and/or the agglomeration of hydrates in production effluents |
| 10/30/1996 | EP0739972A2 Use of olefinic imines to scavenge sulphur species |
| 10/29/1996 | US5569642 Synthetic paraffinic hydrocarbon drilling fluid |
| 10/29/1996 | US5569324 Consists of cement, hardenable resinous material, water and drilling fluid |
| 10/24/1996 | WO1996033296A1 Method for inhibiting microbially influenced corrosion |
| 10/24/1996 | WO1996033250A1 Olefin isomers as lubricants, rate of penetration enhancers, and spotting fluid additives for water-based drilling fluids |
| 10/23/1996 | EP0738824A1 Delayed borate crosslinked fracturing fluid having increased temperature range |
| 10/23/1996 | EP0738310A1 Plugging liquid for plugging a subterranean formation zone |
| 10/22/1996 | US5567675 Solution of liquid aromatic hydrocarbon solvent for petroleum, mutual solvent for water and petroleum, n,n-dialkyl amide of fatty acid |
| 10/22/1996 | US5567213 Use of olefinic imines to scavenge sulfur species |