| 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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| 01/06/2009 | CA2593996C Precursor compositions for ceramic products |
| 01/01/2009 | US20090005490 Wax-Containing Materials |
| 01/01/2009 | US20090005271 circulating wellbore fluid comprising a base fluid e.g. an oleginous fluid and a non-oleaginous fluid and a micronized weighting agent API grade barite; characterized as having one of an equivalent weight, an equivalent or lower settling rate and sag than a baseline wellbore fluid; prolonging tool life |
| 12/31/2008 | WO2009001236A1 Method of heterogeneous etching of sandstone formations |
| 12/31/2008 | WO2009001235A1 Methods and compositions for selectively dissolving sandstone formations |
| 12/31/2008 | WO2009001098A2 Method of enhancing oil recovery |
| 12/31/2008 | WO2009000068A1 Drilling fluid additive and method for improving lubricity or increasing rate of penetration in a drilling operation |
| 12/31/2008 | EP2009076A1 Method for stimulating hydrocarbon production and reducing the production of water from a subterranean formation |
| 12/31/2008 | EP2007842A1 Aqueous gels for well bore strengthening |
| 12/31/2008 | EP2007841A1 Drilling fluid and method for reducing lost circulation |
| 12/31/2008 | EP2007840A1 Methods of preparing hydrocarbon, water and organophilic clay emulsions and compositions thereof |
| 12/31/2008 | CN101336289A Method of culturing unicellular organisms |
| 12/31/2008 | CN101333435A Thinner for thick oil |
| 12/31/2008 | CA2693008A1 Method of enhancing oil recovery |
| 12/31/2008 | CA2692081A1 Drilling fluid additive and method for improving lubricity or increasing rate of penetration in a drilling operation |
| 12/31/2008 | CA2691871A1 Methods and compositions for selectively dissolving sandstone formations |
| 12/30/2008 | US7470419 Granules of powdery mineral and method for production of granules |
| 12/30/2008 | US7470322 Cementing composition with controlled mechanical properties |
| 12/30/2008 | CA2583484C Drilling fluid and method for reducing lost circulation |
| 12/30/2008 | CA2540988C Improved fracturing fluid and method of use |
| 12/30/2008 | CA2405692C Mineral acid enhanced thermal treatment for viscosity reduction of oils (ecb-0002) |
| 12/30/2008 | CA2301485C Additive for wellbore fluids |
| 12/30/2008 | CA2297185C Fluids containing viscoelastic surfactant and methods for using the same |
| 12/28/2008 | CA2636523A1 Acidic internal breaker system for viscoelastic surfactant fluids in brine |
| 12/28/2008 | CA2635868A1 Oxidative internal breaker system with breaking activators for viscoelastic surfactant fluids |
| 12/25/2008 | US20080318812 Oil based concentrated slurries and methods for making and using same |
| 12/25/2008 | US20080318811 Versatile Additives For Well Cementing Applications |
| 12/25/2008 | US20080318810 Self-Breakable Yield Point Enhancer for Oil Based Drilling Mud |
| 12/24/2008 | WO2008157121A1 Dispersing sulfide scales in oil and gas production systems |
| 12/24/2008 | WO2008156970A1 Additive to reduce fluid loss for drilling fluids |
| 12/24/2008 | WO2008155333A1 A method for preventing the formation of calcium carboxylate deposits in the dewatering process for crude oil/water streams |
| 12/24/2008 | WO2008129160A3 Processing fluid for wells bored with oil-based muds in the form of a delayed effect water-in-oil emulsion |
| 12/24/2008 | WO2008071928A3 Corrosion inhibitor intensifier compositions and associated methods |
| 12/24/2008 | EP2004952A2 Conformance control through stimulus-responsive materials |
| 12/24/2008 | EP2004569A1 Settable drilling fluids comprising cement kiln dust and methods of using them |
| 12/24/2008 | EP1924529A4 Apparatus and process for the incorporation of a dry treatment product into a liquid waste |
| 12/24/2008 | CN101331205A Use of pyroglutamic acid esters as gas hydrate inhibitors with improved biodegradability |
| 12/24/2008 | CN101328798A Method for extracting thick oil |
| 12/24/2008 | CN101328402A Oil well blockage removing pipe free agent and preparation thereof |
| 12/24/2008 | CN101328401A High temperature toughcementing carboxyl butadiene-styrene latex additive |
| 12/24/2008 | CN100445345C Amphoteric ion polymeric alcohol for drilling fluid and its preparation method |
| 12/24/2008 | CN100445229C Bilogical-degradable oil-well cement dispersant and preparing method therefor |
| 12/23/2008 | US7468469 Dissolved oxygen releasing compound |
| 12/23/2008 | US7468343 alkylxylene moiety in the alkylxylene sulfonate contains a high percentage of the 4-alkyl-1,2-dimethyl benzene isomer and attachment of the alkyl group to the xylene ring at positions higher than the 2-position on the alkyl carbon chain; for enhancing the recovery of oil from a subterranean reservoir |
| 12/23/2008 | CA2426998C Environmentally acceptable fluid polymer suspension for oil field services |
| 12/22/2008 | CA2599085A1 Lubricating agent and method for improving lubricity in a drilling system |
| 12/18/2008 | WO2008152419A1 Well treatment |
| 12/18/2008 | WO2008152355A1 Subterranean cementing methods and compositions comprising oil suspensions of water soluble polymers |
| 12/18/2008 | WO2008151791A2 Water-based fluid for preventing the formation of w/o emulsions or for resolving w/o emulsions already formed in porous matrices |
| 12/18/2008 | WO2008151447A1 Well service compositions for consolidation of particulates in subterranean coal seams |
| 12/18/2008 | US20080312378 Gypsum wallboard |
| 12/18/2008 | US20080312108 Compositions and process for recovering subterranean oil using green non-toxic biodegradable strong alkali metal salts of polymerized weak acids |
| 12/18/2008 | US20080312107 Process for treating underground formations |
| 12/18/2008 | DE102007027374A1 Producing 1,2-propanediol comprises continuously hydrogenating glycerol in the presence of a heterogeneous copper catalyst and distilling the reaction mixture |
| 12/18/2008 | CA2703349A1 Water-based fluid for preventing the formation of w/o emulsions or for resolving w/o emulsions already formed in porous matrices |
| 12/18/2008 | CA2690253A1 Well service compositions for consolidation of particulates in subterranean coal seams |
| 12/18/2008 | CA2690178A1 Well treatment |
| 12/17/2008 | EP2001981A1 Process for the preparation of water-in-oil and oil-in-water nanoemulsions |
| 12/17/2008 | EP2001816A2 Sandstone having a modified wettability and a method for modifying the surface energy of sandstone |
| 12/17/2008 | EP1189995B1 Enzymatic preservation of water based paints |
| 12/17/2008 | CN101326259A High temperature gellant for viscosity modification of low and high density brines |
| 12/17/2008 | CN101326258A Solvent free fluidized polymer suspensions for oilfield servicing fluids |
| 12/17/2008 | CN101323780A Low pervasion oilfield thermochemical cleanup additive and use thereof |
| 12/17/2008 | CN101323779A Low-temperature high-early strength anti-migration agent for deep water cementing |
| 12/17/2008 | CN101323778A Metakaolin-slag base geological polymer for oilfield cementing and high temperature retarder thereof |
| 12/17/2008 | CN100443562C Process for preparing thick oil hydrothermally catalytic cracking viscosity reducer containing amphiphilic structure |
| 12/17/2008 | CN100443561C Solid lubricant for well drilling liquid and preparation process thereof |
| 12/16/2008 | US7464756 Process for in situ recovery of bitumen and heavy oil |
| 12/11/2008 | WO2008151331A1 Use of nano-sized clay minerals in viscoelastic surfactant fluids |
| 12/11/2008 | WO2008151330A1 Procedures and compositions for reservoir protection |
| 12/11/2008 | WO2008151329A1 Compositions and methods for controlling fluid loss |
| 12/11/2008 | WO2008150468A1 Oil-well cement fluid loss additive composition |
| 12/11/2008 | WO2008130279A3 Low-density ceramic proppant and its production method |
| 12/11/2008 | US20080305971 Polysaccharide Treatment Fluid and Method of Treating A Subterranean Formation |
| 12/11/2008 | US20080302531 Process for recovering oil from subterranean reservoirs |
| 12/11/2008 | CA2687235A1 Oil-well cement fluid loss additive composition |
| 12/10/2008 | EP1999340A1 Method of fracturing a coalbed gas reservoir |
| 12/10/2008 | EP1999225A1 Methods of treating wellbores with recyclable fluids |
| 12/10/2008 | EP1999224A1 Use of aluminate cements for controlling the rheology of liquid phases |
| 12/10/2008 | EP1659103A4 Charging material for producing refractory high-strength spherical granules and method for the production thereof |
| 12/10/2008 | CN101321843A Particles |
| 12/10/2008 | CN101319136A Ahead fluid for gas-liquid conversion artesian well and its use method |
| 12/10/2008 | CN101319135A Drilling fluid viscosity stabilizer host |
| 12/10/2008 | CN101318112A Method for preparing anionic surface active agent for displacement of reservoir oil |
| 12/09/2008 | US7462581 Bridging agent, particularly Newberyite or Struvite; partially depolymerized starch derivative, especially a partially depolymerized crosslinked ether derivative of a starch; and a base fluid such as a drilling or well servicing fluid |
| 12/09/2008 | US7462580 Ecological compatibility, stability, performance; invert emulsion having flat rheology over wide temperature range; operating without fluid loss |
| 12/09/2008 | CA2509130C Methods and compositions for introducing conductive channels into a hydraulic fracturing treatment |
| 12/09/2008 | CA2407459C Invert emulsion drilling fluid and process |
| 12/09/2008 | CA2309414C Improved acid corrosion inhibitor |
| 12/04/2008 | WO2008147659A1 Use of invert epoxy emulsions for wellbore stabilization |
| 12/04/2008 | WO2008147658A1 Use of direct epoxy emulsions for wellbore stabilization |
| 12/04/2008 | WO2008146017A1 Method of well cementing |
| 12/04/2008 | WO2008146015A1 Method of cementing aluminium objects |
| 12/04/2008 | WO2008146011A2 Well cementing methods |
| 12/04/2008 | WO2008145975A1 Polysaccharide based cement additives |
| 12/04/2008 | WO2008144934A1 An in situ extraction process for the recovery of hydrocarbons |
| 12/04/2008 | WO2008144905A1 Use of wax in oil-based drilling fluid |
| 12/04/2008 | WO2008112260A3 High strength ceramic elements and methods for making and using the same |
| 12/04/2008 | WO2008109190B1 A method for reducing extrusion of sealing elements |
| 12/04/2008 | WO2008081158A3 Dual-function additives for enhancing fluid loss control and stabilizing viscoelastic surfactant fluids |