| 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) |
|---|
| 08/02/2007 | DE102006003295A1 Kern für Stützgranulat sowie Verfahren zu dessen Herstellung Core for supporting granule and process for its preparation |
| 08/02/2007 | CA2640125A1 Method of treating a subterranean formation using a rheology model for fluid optimization |
| 08/02/2007 | CA2637314A1 Method of removing scale and acidic composition used thereof |
| 08/01/2007 | EP1812528A2 Viscoelastic surfactant fluids having enhanced shear recovery, rheology and stability performance |
| 08/01/2007 | EP1483353B1 Oil based well fluids with high solids content |
| 08/01/2007 | EP1368509A4 Composition and method for inhibition of metal corrosion |
| 08/01/2007 | CN1329476C Acidification composition for oil well |
| 08/01/2007 | CN1329475C Well drilling method and drilling fluid |
| 08/01/2007 | CN1329474C Alcohol-base fracturing fluid |
| 08/01/2007 | CN1329473C Low-molecular environmentally-friendly fracturing fluid and use of recovery liquid thereof |
| 08/01/2007 | CN1329472C Drilling fluid containing microspheres and use thereof |
| 08/01/2007 | CN1329420C Cladded quartz sand fracturing support agent for oil production |
| 08/01/2007 | CN101007939A Oil soluble heavy crude thinner |
| 08/01/2007 | CN101007286A Preparation method of molybdenum acetylacetonate catalyst coated by surfactants and its application |
| 07/31/2007 | US7250390 High performance water based drilling fluids and method of use |
| 07/31/2007 | CA2227935C Improved method for the thermo-chemical dewaxing of large dimension lines |
| 07/26/2007 | WO2007083144A1 Lost circulation compositions and methods of using them |
| 07/26/2007 | WO2007083128A1 Methods and compositions for acidization in a wellbore |
| 07/26/2007 | WO2007083109A1 Sealant composition comprising a gel system and a reduced amount of cement for a permeable zone downhole |
| 07/26/2007 | US20070173672 Quaternary amonium compounds; not only slow the formation of gas hydrates (kinetic inhibitors) but also keep agglomerates small and pumpable (antiagglomerates); N,N-Dibutylamino-N-ethyl tetrapropylenesuccinate; drilling fluids |
| 07/26/2007 | US20070173418 Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control |
| 07/26/2007 | US20070173417 Porous composites containing hydrocarbon-soluble well treatment agents and methods for using the same |
| 07/26/2007 | US20070173416 Well treatment compositions for use in acidizing a well |
| 07/26/2007 | US20070173415 Stabilization of methyl butynol in hydrochloric acid systems |
| 07/26/2007 | US20070173414 Well drilling fluids having clay control properties |
| 07/26/2007 | US20070173413 Non-volatile phosphorus hydrocarbon gelling agent |
| 07/26/2007 | US20070173412 Lost circulation compositions |
| 07/26/2007 | US20070172658 Method for enhancing the water repellency of inorganic binder compositions, the compositions capable of being obtained by this method and the uses of these compositions |
| 07/26/2007 | US20070169936 slurry of cement, water and super-absorbent polymer which absorbs free water in slurry to form gel ore when placed in well, and which releases absorbed water to cement hydration reaction as cement sets; poly(2-propenamide-co-2-propenoic acid sodium salt), polyacrylamide, modified crosslinked polyacrylate |
| 07/26/2007 | DE19817110B4 Verfahren zur chemisch induzierten Erhöhung der Permeabilität einer unterirdischen Kohleformation A method for chemically-induced increase in permeability of a subterranean coal formation |
| 07/26/2007 | DE102006003201A1 Verfahren zum Brechen der Viskosität Polymer-verdickter wässriger Systeme für die Erdöl- und Erdgasgewinnung Method for breaking the viscosity polymer-thickened aqueous systems for the oil and gas extraction |
| 07/25/2007 | EP1485572B1 Compositions for restoring lost circulation |
| 07/25/2007 | EP1456504B1 A novel fluid system having controllable reversible viscosity |
| 07/25/2007 | CN1328251C Alkylaryl sulfonate and its preparation method and uses |
| 07/25/2007 | CN1328205C Universal oil well cement additive and method |
| 07/25/2007 | CN101006155A Fluid loss concentrate for hydraulic cement |
| 07/25/2007 | CN101003727A Preparing shift drive agent of self cross-linked polymer, and application method |
| 07/25/2007 | CN101003726A Method for preparing and using shift drive agent of reversed phase latex of polyacrylamide |
| 07/24/2007 | US7247604 Oil-based drilling fluid comprising a temperature-stable and non-polluting emulsifying system |
| 07/24/2007 | US7246665 Providing a settable formulation that comprisesmagnesium oxide, andbrine that comprises water and a divalent salt, wherein the divalent salt does not contain magnesium ;placing the settable formulation in a subterranean formation; allowing to to set to form the hardened mass |
| 07/24/2007 | CA2414641C Whey protein retarder |
| 07/24/2007 | CA2388771C Surfactant compositions for well cleaning |
| 07/23/2007 | CA2574506A1 Core for proppants as well as method for their production |
| 07/23/2007 | CA2574505A1 Core for proppants as well as method for their production |
| 07/19/2007 | WO2007082207A1 Water absorbing polymers for treatment of brines and water-based drilling fluids |
| 07/19/2007 | WO2007080417A1 Scale inhibiting well treatment |
| 07/19/2007 | WO2007054225A3 Pyroglutamic acid esters with improved biodegradability |
| 07/19/2007 | US20070167542 Method of using water-superabsorbent polymer in production tubing and pipes |
| 07/19/2007 | US20070167333 Spray dried emulsifier compositions, methods for their preparation, and their use in oil-based drilling fluid compositions |
| 07/19/2007 | US20070167332 Quaternary ammonium salts as thickening agents for aqueous systems |
| 07/19/2007 | US20070167331 Method of consolidating an underground formation |
| 07/19/2007 | US20070163779 Compositions containing a buffer and a peroxide or peracid useful for treating wells |
| 07/19/2007 | CA2635032A1 Scale inhibiting well treatment |
| 07/18/2007 | EP1807605A2 Methods for producing fluids from acidized and consolidated portions of subterranean formations |
| 07/18/2007 | EP1807604A2 Production of free gas by gas hydrate conversion |
| 07/18/2007 | EP1807480A1 Asphaltene inhibition |
| 07/18/2007 | EP1807479A2 Shale hydration inhibition agent and method of use |
| 07/18/2007 | CN1327106C Chemical regulator for stratified waterflooding in water injection well and stratified water amount regulating construction method |
| 07/18/2007 | CN1326970C Oil-displacing agent and production thereof |
| 07/18/2007 | CN1326969C Positive electricity production well treatment liquid and its preparation method |
| 07/18/2007 | CN100999659A Graft type fracturing fluid and preparation process thereof |
| 07/18/2007 | CN100999658A Composite fracturing fluid |
| 07/17/2007 | US7244694 Viscoelastic fluids containing nanotubes for oilfield uses |
| 07/17/2007 | US7244693 down-hole placement of polymeric particles carrying well treatment chemicals or precursors or generators thereof; styrene:divinyl benzene polymer particles impregnated with insulin |
| 07/17/2007 | US7244492 particulate substrate materials having soluble fibrous material partially or fully embedded in a resin or polymer coating surrounding the particulate substrate; can include phenol-aldehyde novolac polymers and phenol-aldehyde resole polymers, as well as water-soluble polymeric outer coatings |
| 07/17/2007 | US7244363 Providing a heavy halide brine, adding a permanganate to the heavy halide brine to oxidize the water-soluble ions;allowing a water-insoluble compound to form; andremoving the water insoluble compound from the heavy halide brine |
| 07/17/2007 | US7243720 Inhibiting breakthrough of driving fluid via a permeable geological layer into an oil production well |
| 07/17/2007 | CA2270998C A method for preventing or retarding the formation of gas hydrates |
| 07/13/2007 | CA2573834A1 Polyurethane proppant particle and use thereof |
| 07/12/2007 | WO2007077441A1 Organophilic clays and methods for the preparation and use thereof |
| 07/12/2007 | WO2007077418A1 Compositions and methods for stimulating liquid-sensitive subterranean formations |
| 07/12/2007 | WO2007054670A3 Compositions comprising melt-processed inorganic fibers and methods of using such compositions |
| 07/12/2007 | WO2007045592A8 Emulsifier based on polyamines and fatty acid/maleic anhydride |
| 07/12/2007 | WO2006095123A3 Methods for high temperature lightweight cementing |
| 07/12/2007 | US20070161516 Filtrate reducer for drilling muds |
| 07/12/2007 | US20070161515 Method for the fracture stimulation of a subterranean formation having a wellbore by using impact-modified thermoset polymer nanocomposite particles as proppants |
| 07/12/2007 | US20070158070 Consolidation agents and the use thereof for consolidating molded bodies and geological formations consisting of porous or particulate materials |
| 07/12/2007 | CA2632526A1 Method of oil recovery using a foamy oil-external emulsion |
| 07/11/2007 | EP1805277A2 Shale hydration inhibition agent and method of use |
| 07/11/2007 | EP1805276A1 Metal-mediated viscosity reduction of fluids gelled with viscoelastic surfactants |
| 07/11/2007 | EP1608842B1 Reverse circulation cementing system and method |
| 07/11/2007 | CN1997721A Granules of powdery mineral and method for production of granules |
| 07/11/2007 | CN1995695A Re-injection method for produced-water desorption oxygen-removal mixing polymer for improving petroleum recovery efficiency |
| 07/11/2007 | CN1995270A Densifier for aqueous breakdown fluid and its production method |
| 07/11/2007 | CN1995269A Chemical formula and process for removing organic block adjacent to oil well area |
| 07/11/2007 | CN1995268A Wax-proof condensation-reducing cool temperature convey agent |
| 07/11/2007 | CN1995267A Macropore plugging gelatin |
| 07/11/2007 | CN1325754C Double action air leakage prevention agent for oil-gas well cementing, method for preparation and use thereof |
| 07/11/2007 | CN1325599C Oil extraction microbial conenoses nutrient solution |
| 07/11/2007 | CN1325598C Microcapsule degelling agent and its preparation method |
| 07/10/2007 | US7241729 Compositions and methods for using polymeric suds enhancers |
| 07/10/2007 | US7240732 Dispersant compositions for cement compositions and related methods |
| 07/05/2007 | WO2007076389A2 Proppant and methods of use |
| 07/05/2007 | WO2007075457A1 Sprayable mining liner composition |
| 07/05/2007 | WO2007056393A3 Polycationic viscoelastic compositions |
| 07/05/2007 | WO2007056392A9 Polycationic viscoelastic compositions |
| 07/05/2007 | US20070155630 Compositions for stimulating liquid-sensitive subterranean formations |
| 07/05/2007 | US20070155629 Organophilic clays and methods for the preparation and use thereof |
| 07/05/2007 | US20070154268 High strength polycrystalline ceramic spheres |
| 07/05/2007 | US20070151763 Drilling system and method |