| 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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| 12/04/2008 | US20080295678 Perforation gun with integral debris trap apparatus and method of use |
| 12/04/2008 | DE102008026079A1 Verfahren zur Komplettierung eines Bohrlochs Method of completing a wellbore |
| 12/04/2008 | CA2689315A1 Method for completing a borehole |
| 12/04/2008 | CA2689185A1 Method of well cementing |
| 12/04/2008 | CA2686565A1 Utilization of low btu gas generated during in situ heating of organic-rich rock |
| 12/03/2008 | EP1996792A2 Method and apparatus for hydraulic fracturing and monitoring |
| 12/03/2008 | EP1996791A2 Method and apparatus for recovering and transporting methane gas |
| 12/03/2008 | EP1687509B1 Method for delivering a multi-phase mixture and pump installation |
| 12/03/2008 | CN201159276Y Automatic lubrication device for load-hanging steel wire rope |
| 12/03/2008 | CN201159161Y Rain cover for oil pump belt |
| 12/03/2008 | CN201159158Y Balance type beam pumping unit |
| 12/03/2008 | CN201159157Y Loop chain type double-weight counterbalance oil pumping machine |
| 12/03/2008 | CN201159081Y Combustion driving three-dimensional physical analog measurement controller |
| 12/03/2008 | CN201159079Y Centrifugal three-phase oil-water separation combination device |
| 12/03/2008 | CN201159078Y Oil field multi-magnetic field constant temperature energy-saving electromagnetic paraffin removal-proof device |
| 12/03/2008 | CN201159077Y Minor diameter eccentric water distributing apparatus |
| 12/03/2008 | CN201159076Y Intelligent flux observing and controlling device |
| 12/03/2008 | CN201159075Y Stainless steel wrap wire sand prevention pipe |
| 12/03/2008 | CN201159074Y Steel filter of horizontal undercurrent-cutting water-collection well |
| 12/03/2008 | CN201159073Y Natural gas down-hole dropping equipment |
| 12/03/2008 | CN201159072Y Oil field down-hole rotation type mechanical driving device |
| 12/03/2008 | CN201159071Y Novel combined oil dragging device |
| 12/03/2008 | CN201159070Y Hydraulic oil rig with low energy consumption |
| 12/03/2008 | CN201159069Y Down-hole guard |
| 12/03/2008 | CN101316984A Systems and methods for producing hydrocarbons from tar sands with heat created drainage paths |
| 12/03/2008 | CN101316983A Methods of filtering a liquid stream produced from an in situ heat treatment process |
| 12/03/2008 | CN101316982A Cogeneration systems and processes for treating hydrocarbon containing formations |
| 12/03/2008 | CN101316980A System and method for performing multiple downhole operations |
| 12/03/2008 | CN101316916A Methods of hydrotreating a liquid stream to remove clogging compounds |
| 12/03/2008 | CN101315026A Underground coal gasification system and producing process |
| 12/03/2008 | CN101315025A Construction method for rock salt cavity gas storage house |
| 12/03/2008 | CN101314712A Microsphere oil displacement profile control agent, displacement of reservoir oil system and displacement of reservoir oil method |
| 12/03/2008 | CN101314711A Elastic particle oil displacement profile control agent, displacement of reservoir oil system and displacement of reservoir oil method |
| 12/03/2008 | CN101314710A Oil displacement profile control agent, displacement of reservoir oil system and displacement of reservoir oil method |
| 12/03/2008 | CN100439753C Oil submerged pump special-purpose speed reducer and process for making same |
| 12/03/2008 | CN100439649C Full automatic weighing type gas liquid diphase oil well metering device |
| 12/03/2008 | CN100439648C Portable, surface-mounted well pump |
| 12/02/2008 | US7460438 Downhole data communication |
| 12/02/2008 | US7458787 Apparatus and method for reducing gas lock in downhole pumps |
| 12/02/2008 | US7458426 Embedding a steel pipe in an excavated well, excavating the underground on the front end of the embedded steel pipe to deepen the well, inserting a second steel pipe; expanding the second steel pipe radially by a tool inserted therein to increase the diameter, excavating, repeating |
| 12/02/2008 | US7458422 One trip cemented expandable monobore liner system and method |
| 12/02/2008 | CA2440259C Tubing expansion tool |
| 12/02/2008 | CA2384810C Determining optimal well locations from a 3d reservoir model |
| 12/02/2008 | CA2337976C Pump rod drive and torque release mechanism |
| 12/01/2008 | CA2591395A1 Method of automated oil well pump control and an automated well pump control system |
| 12/01/2008 | CA2591354A1 An in situ extraction process for the recovery of hydrocarbons |
| 11/30/2008 | CA2632851A1 Perforating torch apparatus and method |
| 11/27/2008 | WO2008144413A1 Method and system for heat management of an oil field |
| 11/27/2008 | WO2008144249A2 Expandable centralizer for expandable pipe string |
| 11/27/2008 | WO2008144238A1 Reducing flow-back in well treating materials |
| 11/27/2008 | WO2008143784A2 Apparatus for autonomously controlling the inflow of production fluids from a subterranean well |
| 11/27/2008 | WO2008143544A1 Method of improving the conductivity of a fracture in the space between proppant pillars |
| 11/27/2008 | WO2008143522A1 Gas valve and production tubing with a gas valve |
| 11/27/2008 | WO2008142585A2 Methods and systems for investigating downhole conditions |
| 11/27/2008 | WO2008142406A2 Methods for maximizing second fracture length |
| 11/27/2008 | WO2008142344A1 Liquid/gas separation device and liquid/gas separation method, in particular for crude oil liquid and gaseous phases |
| 11/27/2008 | WO2008098047A3 Well perforating gun with stress relieved scallops |
| 11/27/2008 | WO2008060311A3 Method for cagd recovery of heavy oil |
| 11/27/2008 | WO2007117865A3 Enhanced hydrocarbon recovery by in situ combustion of oil sand formations |
| 11/27/2008 | WO2004085790A3 Apparatus for radially expanding and plastically deforming a tubular member |
| 11/27/2008 | US20080290719 Process for producing Hydrocarbon fluids combining in situ heating, a power plant and a gas plant |
| 11/27/2008 | US20080289828 Methods of Limiting Leak Off and Damage In Hydraulic Fractures |
| 11/27/2008 | US20080289823 Degradable Material Assisted Diversion or Isolation |
| 11/27/2008 | US20080289822 Integrated system and method for steam-assisted gravity drainage (sagd)-heavy oil production to produce super-heated steam without liquid waste discharge |
| 11/27/2008 | US20080289821 Integrated system and method for steam-assisted gravity drainage (sagd)-heavy oil production using low quality fuel and low quality water |
| 11/27/2008 | US20080289820 Combined Hydrogen Production and Unconventional Heavy Oil Extraction |
| 11/27/2008 | US20080289819 Utilization of low BTU gas generated during in situ heating of organic-rich rock |
| 11/27/2008 | US20080289816 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 11/27/2008 | US20080289814 Solid Expandable Tubular Members Formed From Very Low Carbon Steel and Method |
| 11/27/2008 | CA2687495A1 Expandable centralizer for expandable pipe string |
| 11/27/2008 | CA2686475A1 Methods and systems for investigating downhole conditions |
| 11/27/2008 | CA2685946A1 Gas valve and production tubing with a gas valve |
| 11/27/2008 | CA2685587A1 Methods for maximizing second fracture length |
| 11/27/2008 | CA2685193A1 Reducing flow-back in well treating materials |
| 11/27/2008 | CA2685179A1 Method of improving the conductivity of a fracture in the space between proppant pillars |
| 11/27/2008 | CA2682687A1 Downhole burner wells for in situ conversion of organic-rich rock formations |
| 11/26/2008 | EP1994258A1 Hydrocarbon recovery techniques |
| 11/26/2008 | EP1994256A1 An improved screening device |
| 11/26/2008 | EP1994255A1 Borehole seismic pulse generation using rapid-opening valve |
| 11/26/2008 | EP1859125B1 Use of water-soluble alkane sulfonic acids for increasing the permeability of underground petroliferous and/or gas-bearing carbonate rock formations and for dissolving carbonate contaminants and/or contaminants containing carbonates during petroleum production |
| 11/26/2008 | EP1789650B1 Methods for controlling fluid loss |
| 11/26/2008 | CN201156191Y Oil pumping well controller |
| 11/26/2008 | CN201155454Y Tungsten alloy anti-corrosive oil pump |
| 11/26/2008 | CN201155447Y Deposition-resisting synergistic oil pump |
| 11/26/2008 | CN201155324Y Hollow sucker rod heater |
| 11/26/2008 | CN201155323Y Upper guiding type minor diameter multifunction eccentric water-distributor |
| 11/26/2008 | CN101313126A Solution mining systems and methods for treating hydrocarbon containing formations |
| 11/26/2008 | CN101311494A Downhole screen assembly |
| 11/25/2008 | US7455116 Injection valve and method |
| 11/25/2008 | US7455112 Well bores; acid-generaters; esters, formates, lactic acids, methyl lactate, ethyl lactate, propyl lactate, butyl lactate; gelling agent is natural biopolymers, synthetic polymers, viscoelastic surfactants; diverting agent is degradable dextran particulate, oil-soluble resins, water-soluble rock salt |
| 11/25/2008 | US7455111 Water in oil emulsion and organophosphate dispersant increase permeability; unwanted particles deposited in the formation are dissolved or loosened by the outer phase of the water-in-oil emulsion; displacement of oil base drilling muds; removal of asphaltenes, paraffins, scale, heavy crude, and pipe dope |
| 11/25/2008 | US7455109 Water flooding method |
| 11/25/2008 | US7455106 Polymer protective coated polymeric components for oilfield applications |
| 11/25/2008 | US7455104 Expandable elements |
| 11/25/2008 | CA2393406C System for producing de-watered oil |
| 11/25/2008 | CA2291245C Improved polymer expansion for oil and gas recovery |
| 11/20/2008 | WO2008141043A1 Screen saver sub |
| 11/20/2008 | WO2008141042A1 Phenol-formaldehyde novolac resin having low concentration of free phenol |
| 11/20/2008 | WO2008141039A1 Increasing buoyancy of well treating materials |
| 11/20/2008 | WO2008140670A1 Downhole tubular expansion tool and method |