| 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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| 09/17/2008 | EP1797157B1 Selective fracture face dissolution |
| 09/17/2008 | EP1451442B1 Methods and compositions for sealing an expandable tubular in a wellbore |
| 09/17/2008 | CN101268150A Slurry compositions and methods for making same |
| 09/17/2008 | CN101265798A Sieve tube free composite fracturing fibre sand prevention process |
| 09/17/2008 | CN101265406A Pad acid liquid and pad acid sand fracturing method |
| 09/17/2008 | CN100419039C Zeolite profile control agent and method for injecting zeolite profile control agent into profile control well |
| 09/17/2008 | CN100419038C Water-based drilling fluids using latex additives |
| 09/16/2008 | US7424914 cementing wells using a mixture of calcium phosphate or aluminate, water and minerals selected from mica or vermiculite, and optionally wollastonite, basalt, carbon fibers or plastic fibers |
| 09/16/2008 | US7424913 Methods of using substantially hydrated cement particulates in subterranean applications |
| 09/16/2008 | CA2452969C Gel plugs and pigs for pipeline use |
| 09/13/2008 | CA2624737A1 Low toxicity shale hydration inhibition agent and method of use |
| 09/12/2008 | WO2008109297A1 Method of removing filter cake |
| 09/12/2008 | WO2008109190A1 A method for reducing extrusion of sealing elements |
| 09/12/2008 | WO2008107674A1 Methods for treating a subterranean formation with a treatment fluid containing a gelling agent and subsequently breaking the gel with an oxidizer |
| 09/12/2008 | WO2008106786A1 Drilling fluid and method for drilling in coal-containing formations |
| 09/12/2008 | WO2008106767A1 Fracturing method and apparatus utilizing gelled isolation fluid |
| 09/12/2008 | WO2008089386A3 Methods of using stable hydrocarbon foams |
| 09/12/2008 | WO2008084193A3 Compositions comprising sorel cements and oil based fluids and method of servicing a wellbore with the same |
| 09/12/2008 | WO2008083063A3 Aqueous fluid and method of making and using the same |
| 09/12/2008 | WO2006133008B1 Invert emulsion carrier fluid and oil-wetting agent and method of using same |
| 09/12/2008 | CA2679948A1 Apparatus and method of fracturing |
| 09/12/2008 | CA2679922A1 Drilling fluid and method for drilling in coal-containing formations |
| 09/11/2008 | US20080220996 Preparing a gas and oil well proppant of alumina fines, clay and bauxite; hydraulic fracturing of subterranean formations, grinding |
| 09/11/2008 | US20080220995 Introducing an aqueous treating fluid of a viscoelastic surfactant, alkylene glycols, or glycerin, a fluid loss control agent of alkaline earth metal oxides, alkaline earth metal hydroxides, vegetable oil and fish oil through a wellbore to the subterranean formation |
| 09/11/2008 | US20080220993 Suspension stabilized with xanthan gum and sodium benzoate; rheology/viscosity modifier and fluid loss reducer; minimal affect on the marine environment |
| 09/11/2008 | US20080220992 Combining water, diutan; bromide salts, non-bromide salts; introducing the treatment fluid through the wellbore; viscosifying agent that provides high stability at elevated temperatures in solutions containing electrolytes |
| 09/11/2008 | US20080217064 Drilling fluid and methods |
| 09/11/2008 | US20080217011 Methods for treating a subterranean formation with a treatment fluid containing a gelling agent and subsequently breaking the gel with an oxidizer |
| 09/10/2008 | EP1966347A2 Amino acid, carbohydrate and acrylamide polymers useful as flocculants in agricultural and industrial settings |
| 09/10/2008 | CN101263211A Water swellable polymers as lost circulation control agents material |
| 09/10/2008 | CN101260293A Hollow micro-sphere regulating driving agent and using method thereof |
| 09/10/2008 | CN101260292A Coagulated cake forming agent and its preparing process and usage |
| 09/10/2008 | CN101260291A Fire resistant low-density oil well cement lightening agent |
| 09/10/2008 | CN101260290A Environmental-friendly type drilling fluid (EFD) |
| 09/10/2008 | CN101260177A Low molecular weight graft copolymers |
| 09/10/2008 | CN101260176A 磺化接枝共聚物 Sulfonated graft copolymer |
| 09/10/2008 | CN101260171A Comb-type structure activity polymer and its preparation technique and application |
| 09/10/2008 | CN101260163A In-situ polymerization intercalated composite gel material and its preparation method and application |
| 09/09/2008 | US7423106 Superabsorbent polymer product and use in agriculture |
| 09/09/2008 | US7422061 Pumping cement slurry including a derivatized hydroxypropyl starch as an additive for fluid loss control into the well bore and maintaining the cement slurry in place until the cement sets |
| 09/09/2008 | CA2594108A1 Drilling fluid and methods |
| 09/09/2008 | CA2451334C Fracturing fluids and methods of making and using same |
| 09/09/2008 | CA2400597C Lightweight methods and compositions for well treating |
| 09/04/2008 | WO2008106695A2 Methods and compositions for fracturing subterranean formations |
| 09/04/2008 | WO2008106255A1 Bit balling treatment |
| 09/04/2008 | WO2008105678A1 Proppant and method for higher production of a well |
| 09/04/2008 | WO2008084226A3 Cement compositions comprising humic acid grafted fluid loss control additives and methods of using them |
| 09/04/2008 | WO2008020908A3 Core annular flow of heavy crude oils in transportation pipelines and production wellbores |
| 09/04/2008 | US20080214726 Polymeric Materials |
| 09/04/2008 | US20080214413 Mi xture contains polymer blend with heavy crude oil; drilling subterranean formations |
| 09/04/2008 | US20080210421 Tagged Propping Agents and Related Methods |
| 09/03/2008 | EP1963458A1 Methods of consolidating unconsolidated particulates in subterranean formations |
| 09/03/2008 | EP1963232A1 Process for separating mixtures |
| 09/03/2008 | EP1427910B1 Chelant compositions for fracturing fluid |
| 09/03/2008 | EP1203068B1 Structured surfactant systems |
| 09/03/2008 | CN101255560A LYF-A oil extraction long-acting corrosion inhibition anticrustator |
| 09/03/2008 | CN101255333A Anti-temperature starch composition for drilling liquid and preparation method thereof |
| 09/03/2008 | CN101255332A Solid-free high temperature resistant petroleum oil well completion working liquid |
| 09/03/2008 | CN101255260A Heatproof salt-resistant cross-linking polymer system |
| 09/03/2008 | CN101255127A Synthesis of aliphatic alcohol polyoxyethylene sulfonate and complex formulation used for tertiary oil recovery displacement agent |
| 09/02/2008 | US7419939 Mineral acid enhanced thermal treatment for viscosity reduction of oils (ECB-0002) |
| 09/02/2008 | US7419938 Process for treating an oil well |
| 09/02/2008 | US7419937 Antiscaling agent for well bores; sustained release |
| 09/02/2008 | US7419004 Method of gravel packing with oil-based carrier fluid |
| 09/02/2008 | CA2178767C Brine fluids having improved rheological characteristics |
| 08/28/2008 | WO2008103614A1 Using oxidizing agents to remove thiocyanates from brines |
| 08/28/2008 | WO2008103596A1 Use of lamellar weighting agents in drilling muds |
| 08/28/2008 | WO2008103551A2 Breaker and displacement fluid and method of use |
| 08/28/2008 | WO2008102138A1 Crosslinked acids comprising derivatized xanthan and subterranean acidizing applications |
| 08/28/2008 | WO2008102122A1 Wellbore treatment fluid |
| 08/28/2008 | WO2008101947A1 Process for reducing the viscosity of highly viscous hydrocarbon mixtures |
| 08/28/2008 | US20080207472 Using mixture of sugar alcohol such as glycerin , glycerol , gum and graphite beads; nontoxic; biodegradation |
| 08/28/2008 | US20080207471 Regeration of brines ; using oxidizer; reduction of thiocyanate concentration |
| 08/28/2008 | US20080207470 Crosslinked acids comprising derivatized xanthan and subterranean acidizing applications |
| 08/28/2008 | US20080207469 Bit Balling Treatment |
| 08/28/2008 | US20080202815 Containing hydrocarbyl polyether phosphate; lubricants; well completion |
| 08/28/2008 | US20080202759 Crosslinked acids comprising derivatized xanthan and subterranean acidizing applications |
| 08/28/2008 | US20080202749 Aqueous colloids comprising polydiallyldimethylammonium chloride, sodium lauryl sulfate, and laury alcohol for well completion fluids; for subterranean fracturing/drilling; coacervate gels having excellent shear viscosities |
| 08/28/2008 | US20080202744 viscoelastic surfactant (VES) gelled aqueous fluids containing water, a VES, an internal breaker, a VES stabilizer, a fluid loss control agent and a viscosity enhancer are useful as treating fluids, particularly as fracturing fluids for subterranean formations; faster clean-up than polymer-based fluids |
| 08/28/2008 | CA2680233A1 Process for reducing the viscosity of highly viscous hydrocarbon mixtures |
| 08/28/2008 | CA2677855A1 Wellbore treatment fluid |
| 08/28/2008 | CA2677840A1 Breaker and displacement fluid and method of use |
| 08/28/2008 | CA2579970A1 Method of using and transporting a non-emulsified organic peroxide-containing composition |
| 08/27/2008 | EP1961799A1 Process for reducing the viscosity of highly viscous hydrocarbon mixtures |
| 08/27/2008 | EP1960509A1 Method of culturing unicellular organisms |
| 08/27/2008 | EP1960492A1 Additives and treatment fluids comprising chlorinated carbohydrates and methods of using them |
| 08/27/2008 | EP1960130A1 Agent for treating oil-polluted ground and for cleaning oil-contaminated surfaces and containers |
| 08/27/2008 | EP1456502B1 Use of charged amphiphilic statistic polymers for thickening phases comprising giant micelles of surfactants and aqueous compositions comprising same |
| 08/27/2008 | CN101253251A Methods and materials for zonal isolation |
| 08/27/2008 | CN101250401A Thixotropy high-strength gel diverting agent |
| 08/27/2008 | CN101250400A Method for preparing oil extraction production promoter |
| 08/27/2008 | CN101250399A Oil field down-hole glass dynamic anti-scale descaling material |
| 08/27/2008 | CN101250398A Well drilling leak-proof sealing agent |
| 08/27/2008 | CN101250397A Method for preparing amphoteric ion polymer fluid loss additive |
| 08/27/2008 | CN101250396A Pure luminescence-free lubricant for petroleum drilling liquid |
| 08/27/2008 | CN101250384A Cementitious composition |
| 08/26/2008 | US7417010 Process for treating an oil well |
| 08/26/2008 | US7417009 Paraffin inhibitors |
| 08/26/2008 | CA2570526C Degradable additive for viscoelastic surfactant based fluid system |
| 08/26/2008 | CA2239585C Well drilling and servicing fluids and methods of increasing the low shear rate viscosity thereof |