| Patents for E21B 37 - Methods or apparatus for cleaning boreholes or wells (5,129) |
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| 05/24/2006 | EP1259701B1 Controlled downhole chemical injection |
| 05/24/2006 | EP1169648B1 Use of 13c-nmr to detect binding |
| 05/23/2006 | US7048056 Down-hole well cleaning tool |
| 05/23/2006 | US7048055 Packer with integral cleaning device |
| 05/18/2006 | US20060102354 Wear resistant layer for downhole well equipment |
| 05/18/2006 | US20060102343 Drilling, perforating and formation analysis |
| 05/18/2006 | US20060102201 Coiled tubing wellbore cleanout |
| 05/17/2006 | EP1583887B1 Method and device for intensifying the permeability of ground layers close to bore holes and filter bodies and filter layers in wells and other production wells |
| 05/17/2006 | EP1358426B1 Method of diminishing the size of the cross section of an opening of a hollow device located in a flow pipe |
| 05/17/2006 | CN2780982Y 简易油管清洁装置 Simple pipeline cleaning device |
| 05/16/2006 | US7044226 Method and a device for removing a hydrate plug |
| 05/11/2006 | US20060096760 Enhancing A Flow Through A Well Pump |
| 05/11/2006 | US20060096758 Method of treating an oil or gas well with biodegradable low toxicity fluid system |
| 05/11/2006 | US20060096757 Method of treating an oil or gas well with biodegradable low toxicity fluid system |
| 05/10/2006 | CN2779046Y Automatic control oil-drain spout proof well mouth apparatus for gaining oil |
| 05/09/2006 | US7040395 Apparatus and method for debris in a well bore |
| 05/09/2006 | US7040390 Wellbores utilizing fiber optic-based sensors and operating devices |
| 05/09/2006 | CA2366355C Method of cleaning a well bore prior to installing a water based fluid system |
| 05/09/2006 | CA2197005C Process for inhibiting or delaying hydrates formation, growth and/or agglomeration |
| 05/03/2006 | EP1570154A4 Well bore cleaning and tubular circulating and flow-back apparatus |
| 05/02/2006 | US7037724 Mixing variations in crude oil; measuring asphaltene in mixture; prevention precipitation; calibration; storage stability |
| 05/02/2006 | US7036594 Controlling a pressure transient in a well |
| 05/02/2006 | US7036587 Methods of diverting treating fluids in subterranean zones and degradable diverting materials |
| 04/27/2006 | WO2006025912A3 Low dosage naphthenate inhibitors |
| 04/27/2006 | US20060086507 Wellbore cleanout tool and method |
| 04/26/2006 | CN2775292Y Fluid reverse filling short section |
| 04/25/2006 | US7032674 Process for increasing flow capacity of gas wells |
| 04/25/2006 | CA2142625C Oil and gas well operation fluid used for the solvation of waxes and asphaltenes, and method of use thereof |
| 04/20/2006 | US20060081375 Casing brush tool |
| 04/18/2006 | US7028776 Methods for the inhibition of salt blockages in oil and gas wells |
| 04/18/2006 | US7028769 Well bore cleaning and tubular circulating and flow-back apparatus |
| 04/13/2006 | US20060076140 Gas Lift Apparatus and Method for Producing a Well |
| 04/13/2006 | US20060076133 One trip liner conveyed gravel packing and cementing system |
| 04/13/2006 | US20060076131 Well cleaning method and apparatus using detonating cord having additional reliability and a longer shelf life |
| 04/12/2006 | EP1190157B1 Reduction in mineral salt deposition |
| 04/11/2006 | US7025143 Method for removing a deposit using pulsed fluid flow |
| 04/11/2006 | US7025142 Bi-directional thruster pig apparatus and method of utilizing same |
| 04/11/2006 | CA2277052C Method of controlling asphaltene precipitation in a fluid |
| 04/05/2006 | EP1414742B1 Method for decomposing hydrogen peroxide under pressure and device for heating an equipment |
| 04/05/2006 | CN2769505Y Expanding antileaking flushing device |
| 04/04/2006 | US7021378 Method for enhancing the retention efficiency of treatment chemicals in subterranean formations |
| 04/04/2006 | US7021377 Methods of removing filter cake from well producing zones |
| 04/04/2006 | CA2230508C Process to enhance removal of adhering solids from the surface of wellbores and sand control devices therein |
| 03/29/2006 | CN2767657Y Automatic wax removal apparatus for pumping rod |
| 03/28/2006 | US7017593 Pipe washing method and pipe washing apparatus |
| 03/28/2006 | CA2219327C Method for inhibiting the plugging of conduits by gas hydrates |
| 03/23/2006 | US20060063681 Fluid having recyclable viscosity |
| 03/22/2006 | EP1165936B1 Novel fluids and techniques for maximizing fracture fluid clean-up |
| 03/16/2006 | WO2006029203A1 Magnetic assemblies for deposit prevention |
| 03/16/2006 | CA2579582A1 Magnetic assemblies for deposit prevention |
| 03/15/2006 | EP1525373A4 Stimulation and injection system |
| 03/14/2006 | US7011158 Method and apparatus for well bore cleaning |
| 03/14/2006 | US7011157 Method and apparatus for cleaning a fractured interval between two packers |
| 03/09/2006 | US20060048941 Magnetic assemblies for deposit prevention |
| 03/08/2006 | EP1497526A4 Bi-directional thruster pig apparatus and method of utilizing same |
| 03/08/2006 | CN2763496Y Oil layer protector for preventing flushing-flood pollution |
| 03/08/2006 | CN1244664C Press cracking method |
| 03/02/2006 | WO2006021771A1 Clamp |
| 03/02/2006 | US20060042797 Methods for controlling fluid loss |
| 03/02/2006 | US20060042796 Compositions for treating a well penetrating a subterranean formation and uses thereof |
| 03/01/2006 | EP1534922B1 Method and compositions for inhibiting formation of hydrocarbon hydrates |
| 03/01/2006 | CN2761836Y Device for automatic preventing well swab colliding wellhead |
| 02/28/2006 | US7006009 Servicing system for wells |
| 02/28/2006 | US7004258 Method and apparatus for enhancing oil and gas flow in a well |
| 02/23/2006 | US20060037754 Gelled liquid hydrocarbon treatment fluids having reduced phosphorus volatility and their associated methods of use and preparation |
| 02/23/2006 | CA2673440A1 Method and apparatus for downhole artificial lift system protection |
| 02/22/2006 | CN2760223Y Sand prevention pipe with layered squeeze pack |
| 02/22/2006 | CN2760220Y Leather cup type jet flow well cleanup apparatus |
| 02/21/2006 | US7000701 Compositions and methods for weighting a breaker coating for uniform distribution in a particulate pack |
| 02/16/2006 | WO2006016137A1 Flow diverter |
| 02/16/2006 | WO2006016102A1 Downhole cleaning apparatus |
| 02/16/2006 | US20060032634 Downhole surge pressure reduction and filtering apparatus |
| 02/15/2006 | CN2758464Y Wax scraper of well head sucker rod |
| 02/15/2006 | CN2758462Y Oil well casing chemical adding device |
| 02/09/2006 | WO2006012731A2 Integrated magnetic ranging tool |
| 02/09/2006 | US20060028321 Integrated magnetic ranging tool |
| 02/09/2006 | US20060027369 Additives for hydrate inhibition in fluids gelled with viscoelastic surfactants |
| 02/09/2006 | DE102004034141A1 Verwendung von Lithiumsalzen von Fettalkoholsulfaten zum Reinigen von Bohrlöchern, Bohrgeräten oder Bohrklein Use of lithium salts of fatty alcohol sulfates for cleaning boreholes, drilling equipment or drill cuttings |
| 02/08/2006 | CN1730900A Wellhead drip medicament charging method by using water pressure to retain constant medicament charging differential pressure |
| 02/07/2006 | US6994167 Method and system for cement lining a wellbore |
| 02/02/2006 | WO2006010874A1 System and method for remediating pipeline blockage |
| 02/02/2006 | US20060021750 Method and system for injecting a treatment fluid into a well |
| 01/31/2006 | US6990879 Drain line re-perforator device |
| 01/31/2006 | CA2416560C Non-cryogenic production of nitrogen for on-site injection in well clean out |
| 01/26/2006 | WO2006008506A1 Scale inhibition method |
| 01/26/2006 | WO2006008439A1 Water flooding method |
| 01/26/2006 | US20060016591 Apparatus and method for agitating reservoir while pumping |
| 01/26/2006 | CA2573680A1 Water flooding method |
| 01/26/2006 | CA2573383A1 Use of lithium salts of fatty alcohol sulphates for cleaning boreholes, boring devices and borings |
| 01/25/2006 | EP1619351A1 Treatment fluids for filter cake degradation in subterranean formations |
| 01/24/2006 | US6988552 Removing any scale or deposits in gas wells, by injecting a liquid carbon dioxide at a pressure below the formation fracturing pressure, depressurization to vaporize carbon dioxide, and blow out any dissolved scale materials |
| 01/21/2006 | CA2671526A1 Controlling transient pressure conditions in a wellbore |
| 01/21/2006 | CA2671521A1 Controlling transient pressure conditions in a wellbore |
| 01/19/2006 | US20060011346 Downhole magnetic retrieval tool |
| 01/19/2006 | US20060011345 Method and apparatus for downhole artificial lift system protection |
| 01/18/2006 | EP1339946B1 Well treatment process |
| 01/18/2006 | CN2752425Y High-efficiency wire-line workover unit |
| 01/17/2006 | US6986396 Method for determining sweep efficiency for removing cuttings from a borehole |
| 01/17/2006 | US6986358 Contacting the surface with tris(hydroxymethyl)phosphine or tetrakis(hydroxymethyl)phosphonium salt and an amine, ammonium derivative, or ammonia in the presence of an aqueous solvent |
| 01/10/2006 | US6984610 Acid based micro-emulsions of surfactants and solvents |