| Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186) |
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| 03/20/2007 | CA2560223A1 Recovery of hydrocarbons using electrical stimulation |
| 03/20/2007 | CA2537867C Apparatus and methods for separating and joining tubulars in a wellbore |
| 03/20/2007 | CA2287719C System and method for protecting a submergible motor from corrosive agents in a subterranean environment |
| 03/19/2007 | CA2520223A1 Method for the in place recovery of heavy oil from a subterranean deposit |
| 03/16/2007 | CA2520758A1 Rotating polished rod guide |
| 03/15/2007 | WO2007028982A1 Subsea pipeline end & drilling guide frame assembly |
| 03/15/2007 | WO2007028946A1 Bottomhole assembly and method for stimulating a well |
| 03/15/2007 | WO2007004875A3 Riser installation method from an offshore production unit |
| 03/15/2007 | WO2006104425A3 Method for controlling the composition of an underground coal gasification gas |
| 03/15/2007 | WO2005017303A3 Expandable tubular |
| 03/15/2007 | US20070060482 Methods and compositions for controlling the viscosity of viscoelastic surfactant fluids |
| 03/15/2007 | US20070056744 Sealing tubing |
| 03/15/2007 | US20070056743 Method of radially expanding and plastically deforming tubular members |
| 03/15/2007 | US20070056740 System and method for processing drilling cuttings during offshore drilling |
| 03/15/2007 | US20070056738 Stimulation and injection system |
| 03/15/2007 | US20070056737 Use of mineral oils, hydrogenated polyalphaolefin oils and saturated fatty acids for breaking ves-gelled fluids |
| 03/15/2007 | US20070056736 Methods and compositions for controlling the viscosity of viscoelastic surfactant fluids |
| 03/15/2007 | US20070056735 Swelleable body arranged in the wellbore in a manner so as to seal space upon swelling; being in contact with formation water flowing into the wellbore, matrix material provided with a compound soluble in the formation water; matrix material sprevents or restricts migration |
| 03/15/2007 | US20070056729 Apparatus for treating fluid streams |
| 03/15/2007 | US20070056726 Apparatus, system, and method for in-situ extraction of oil from oil shale |
| 03/15/2007 | US20070056462 Oil well perforators |
| 03/14/2007 | EP1762697A2 Coupling tubulars |
| 03/14/2007 | EP1762695A1 Expansion activated anti-rotation device |
| 03/14/2007 | EP1761681A1 Performing gun assembly and method for enhancing perforation depth |
| 03/14/2007 | EP1392953B1 Line hanger, running tool and method |
| 03/14/2007 | CN2878725Y Oil production equipment with silo oil submersible screw pump |
| 03/14/2007 | CN2878669Y Under-well magnetic flow sensor |
| 03/14/2007 | CN2878666Y Medium-frequency electricity heating oil sampling device for thick oil |
| 03/14/2007 | CN2878665Y Inner blind hole composite gun perforator for oil/gas well gun perforating device |
| 03/14/2007 | CN2878664Y Energy-saving oil-extraction machine for permanent magnet machine with external rotor |
| 03/14/2007 | CN1930920A Extracting and processing hydrocarbon-bearing formations |
| 03/14/2007 | CN1930369A Expander for expanding a tubular element |
| 03/14/2007 | CN1930368A Dual cone expander for expanding a tubular element to different diameters |
| 03/14/2007 | CN1930367A Method and system for lining multilateral wells |
| 03/14/2007 | CN1930361A A method and device for establishing an underground well |
| 03/14/2007 | CN1928319A Filling and leakage blocking process for cracking leak gravel |
| 03/14/2007 | CN1927992A Preparation method of resin fibre for oil field chemistry sand-proof |
| 03/14/2007 | CN1927895A Nanometer and micron water-soluble microgel reservoir oil material and preparation method thereof |
| 03/14/2007 | CN1304729C Solid propping agent for oil-gas well fractrue |
| 03/14/2007 | CN1304728C Method for the recovery of hydrocarbons from hydrates |
| 03/14/2007 | CN1304727C Series oil well perforator |
| 03/14/2007 | CN1304726C Expandable tubes with overlapping end portions |
| 03/14/2007 | CN1304724C Device for performing a downhole operation in well formed in stratum |
| 03/14/2007 | CN1304722C Airlifting ball and airlifting pipe column structure for oil well |
| 03/13/2007 | US7188687 Downhole filter |
| 03/13/2007 | US7188678 Expandable composite tubulars |
| 03/13/2007 | US7188673 Process for reducing the production of water in oil wells |
| 03/13/2007 | US7188670 Plunger lift system |
| 03/13/2007 | US7188669 Motor cooler for submersible pump |
| 03/13/2007 | CA2505449C Flue gas injection for heavy oil recovery |
| 03/13/2007 | CA2464631C Method and apparatus to reduce slot width in tubular members |
| 03/13/2007 | CA2410132C Sub surface horizontal gas restrictor |
| 03/13/2007 | CA2295466C Lateral well tie-back method and apparatus |
| 03/09/2007 | CA2518692A1 Well product recovery process |
| 03/08/2007 | WO2007027627A1 A method for gravel or frac pacping in a wellbore and for monitoring the packing process |
| 03/08/2007 | WO2007027617A2 Inflow control device with passive shut-off feature |
| 03/08/2007 | WO2007027124A1 Method for a short-term well operation by means of an electrically-powered downhole pumping unit (kuzmichev method) |
| 03/08/2007 | WO2007027080A2 Control system for seabed processing system |
| 03/08/2007 | WO2007026668A1 Method of well seawater intaking |
| 03/08/2007 | WO2007026142A1 Improvements in or relating to esp completions |
| 03/08/2007 | WO2007026141A1 Improvements in or relating to esp completion systems |
| 03/08/2007 | WO2006120399A3 Secondary oil recovery |
| 03/08/2007 | WO2006023310A3 Positive displacement pump |
| 03/08/2007 | WO2005108742A3 Method and apparatus for completing lateral channels from an existing oil or gas well |
| 03/08/2007 | US20070054968 Environmentally friendly defoamer |
| 03/08/2007 | US20070051517 Bottomhole assembly and method for stimulating a well |
| 03/08/2007 | US20070051513 Treatment of Brines for Deep Well Injection |
| 03/08/2007 | US20070051510 Polymer protective coated polymeric components for oilfield applications |
| 03/08/2007 | US20070051509 Horizontally oriented gas separator |
| 03/08/2007 | US20070051508 Pump drive head with integrated stuffing box and clamp |
| 03/08/2007 | US20070051507 Fracturing/gravel packing tool system with dual flow capabilities |
| 03/08/2007 | CA2614425A1 A method for gravel or frac packing in a wellbore and for monitoring the packing process |
| 03/07/2007 | EP1759086A1 Screen for controlling sand production in a wellbore |
| 03/07/2007 | CN2876376Y Interlocking type oil well pump auxiliary brake |
| 03/07/2007 | CN2876329Y Oil gas separator |
| 03/07/2007 | CN2876328Y Layered profile control water distribution device |
| 03/07/2007 | CN2876327Y Flow oxygenless circulation type air lifting car |
| 03/07/2007 | CN2876326Y Winding drum type intelligent oil pumping machine |
| 03/07/2007 | CN2876325Y Rear donkey head even force steel wire driving mechanism of bidonkey bead oil pumping machine |
| 03/07/2007 | CN2876324Y Two stage counter balance compensation type roving beam oil pumping machine |
| 03/07/2007 | CN2876323Y Chain pulley type biwell oil pumping machine |
| 03/07/2007 | CN1926305A System and method for multiple wells from a common surface location |
| 03/07/2007 | CN1924291A Process for gas collection by a well with one mouth and multiple branches drilled along coal layer |
| 03/07/2007 | CN1924290A Flexible balance device for oil pump |
| 03/07/2007 | CN1924289A Flexible balance small-sized energy-saving oil pump |
| 03/07/2007 | CN1924288A All balance long stroke oil pump |
| 03/07/2007 | CN1303309C Method of controlling direction of propagation of injection fractures in permeable formations |
| 03/07/2007 | CN1303183C Acidizing fluid for oil well |
| 03/06/2007 | US7186971 Flowshot technique |
| 03/06/2007 | US7186673 enhancement is by pretreating by adding polymers to the oil, biotreating the oil, photochemically treating the oil ; Solid particles may also be added |
| 03/06/2007 | US7185718 Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings |
| 03/06/2007 | US7185710 Mono-diameter wellbore casing |
| 03/06/2007 | US7185709 Expandable tubing and method |
| 03/06/2007 | US7185707 Hydrostatic separator apparatus and method |
| 03/06/2007 | US7185706 Arrangement for and method of restricting the inflow of formation water to a well |
| 03/06/2007 | US7185704 Service tool with flow diverter and associated method |
| 03/06/2007 | US7185703 Downhole completion system and method for completing a well |
| 03/06/2007 | US7185702 by introducing a peroxide-generating compound (H2O2)) and a moderator into a desired location in a subterranean formation; no premature decomposition of peroxide |
| 03/06/2007 | US7185701 Apparatus and method for radially expanding a tubular member |
| 03/06/2007 | CA2398740C Shaped recesses in explosive carrier housings that provide for improved explosive performance background |