Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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)
10/1999
10/20/1999EP0834000A4 Method for accelerating production
10/20/1999EP0744004B1 A protective device for an installation mounted on the seabed
10/20/1999CN2344543Y Electronic water nozzle for water injection well of oil field
10/20/1999CN2344542Y New type continuous sand washing equipment
10/20/1999CN2344541Y Two-tubing hydraulic power oil production equipment
10/20/1999CN2344540Y Positioning balanced beam pumping unit
10/19/1999US5968354 Apparatus for recovering oil-based liquid
10/19/1999US5967233 Chemically induced stimulation of subterranean carbonaceous formations with aqueous oxidizing solutions
10/19/1999US5967232 Borehole-conformable tool for in-situ stress measurements
10/14/1999WO1999051853A1 Apparatus and method for stimulating a subterranean formation
10/14/1999WO1999051704A1 Injection molded degradable casing perforation ball sealers
10/14/1999CA2269042A1 Coiled tubing screen
10/13/1999EP0948703A2 Apparatus and method for expanding a liner patch; a stroke indicator; and a tubular patch
10/13/1999EP0808446A4 Well pipe perforating gun
10/13/1999CN2343613Y Frequency and exciting force adjustable oscillation source device
10/13/1999CN2343340Y Sliding-blocking type down-hole fluid flow controller
10/13/1999CN2343339Y Pressure exploder with shear pin handy to mounting or detaching
10/13/1999CN2343338Y Sand filtering pipe for high-molecular material
10/13/1999CN2343337Y High-efficient productive device for thickened oil and high-gelatinized oil
10/12/1999US5965029 System and method for treating an oil gas well stream
10/12/1999US5964296 Formation fracturing and gravel packing tool
10/12/1999US5964294 Apparatus and method for orienting a downhole tool in a horizontal or deviated well
10/12/1999US5964291 Fracturing using high pressure fluid and proppant particles
10/12/1999US5964290 Chemically induced stimulation of cleat formation in a subterranean coal formation
10/12/1999US5964289 Multiple zone well completion method and apparatus
10/12/1999US5964288 Radial deformable flexible tube
10/12/1999CA2105004C Tubing conveyed selective fired perforating systems
10/07/1999WO1999050530A1 Method and compositions for water control
10/07/1999WO1999050526A1 Extended reach tie-back system
10/07/1999WO1999050524A2 Subsea mud pump
10/07/1999CA2326353A1 Subsea mud pump
10/06/1999EP0757768B1 Device for permanent joining of tubes
10/06/1999CN2342131Y Telescopic frame raised stroke oil pump
10/06/1999CN2342095Y Adjustable powerless automatic filler
10/06/1999CN2342094Y Wellhead device for pumping and injecting at the same well
10/06/1999CN2342093Y Anti-theft box for temperature lowering type starting electric appliance
10/05/1999US5961841 A system that separates oil from water within a wellbore and that disposes of the separated water within the wellbore.
10/05/1999US5961282 For compressing a multi-phase fluid
10/05/1999US5960894 Expendable tubing conveyed perforator
10/05/1999US5960886 Deep well pumping apparatus
10/05/1999US5960884 Gravel pack apparatus
10/05/1999US5960883 Power management system for downhole control system in a well and method of using same
10/05/1999US5960880 Unconsolidated formation stimulation with sand filtration
10/05/1999US5960879 Methods of completing a subterranean well
10/05/1999US5960878 Methods of protecting well tubular goods from corrosion
10/05/1999US5960875 Electric pump having a linear motor
10/05/1999US5960874 Flow control assembly
09/1999
09/30/1999WO1999049257A1 Pipe coupling
09/30/1999WO1999049184A1 An apparatus for use in the extraction of oil/gas and methods for use thereof
09/30/1999WO1999049173A1 Rotating subsea diverter
09/30/1999WO1999049172A1 Offshore drilling system
09/30/1999CA2326358A1 Rotating subsea diverter
09/30/1999CA2326129A1 Offshore drilling system
09/29/1999EP0945589A1 Managing method for a hydrocarbon production facility
09/29/1999CN2340895Y Oil, water and gas separator for recovered water for oil production by flood pressure
09/28/1999US5959547 Well control systems employing downhole network
09/28/1999US5958845 Non-toxic, inexpensive synthetic drilling fluid
09/28/1999US5957665 Jet system total fluids recovery system
09/28/1999US5957539 Process for excavating a cavity in a thin salt layer
09/28/1999US5957209 Latch and release tool connector and method
09/28/1999US5957205 Sand exclusion liner and method of using the same
09/28/1999US5957202 Combination production of shallow heavy crude
09/28/1999US5957200 Plunger lift controller
09/28/1999US5957199 Natural gas production optimization switching valve system
09/28/1999US5957198 Telescoping joint for use in conduit connected wellhead and zone isolating tool
09/28/1999US5957195 Wellbore tool stroke indicator system and tubular patch
09/28/1999CA2185077C Perforating gun brake
09/28/1999CA2181091C Dual redundant detonating system for oil well perforators
09/27/1999CA2262243A1 Method and apparatus for drilling a plurality of offshore underwater wells
09/27/1999CA2262240A1 Method and apparatus for drilling an offshore underwater well
09/24/1999CA2233057A1 Produced water and light hydrocarbon liquid vapor injection method and apparatus
09/23/1999WO1999047790A1 Extraction of fluids from wells
09/23/1999WO1999047788A1 Well control
09/23/1999WO1999047784A1 Supporting frame for risers
09/22/1999EP0943375A1 Method and installation for soil remediation
09/22/1999EP0651852B1 Gravel pack screen for well completions
09/22/1999CN2339786Y Low-energy-consumption oil-pumping machine
09/22/1999CN2339747Y Pipe column device for crossing-packer perforating-detecting combined construction of oil-gas well
09/21/1999US5955666 Satellite or other remote site system for well control and operation
09/21/1999US5955401 Dry mixture of pre-gelatinized corn starch and synthetic biopolymer added to salt-free water as fluid for drilling horizontal wells for in situ bioremediation of contaminated groundwater
09/21/1999US5955144 Improved resin coated particle comprises a particulate substrate, an inner coating of a curable resin and an outer coating of a substantially cured resin; use as a proppant in hydraulic fracturing of subterranean formations
09/21/1999US5954483 Guide member details for a through-tubing retrievable well pump
09/21/1999US5954136 Method of suspending an ESP within a wellbore
09/21/1999US5954133 Methods of completing wells utilizing wellbore equipment positioning apparatus
09/21/1999CA2030541C Sulfate scale dissolution
09/16/1999WO1999046478A1 Method for applying an acoustic resonance action on gas- and oil-bearing beds and device for realising the same
09/16/1999WO1999046477A1 Hydrologic cells for the exploitation of hydrocarbons from carbonaceous formations
09/16/1999WO1999046476A1 Expendable tubing-conveyed perforator
09/16/1999WO1999046474A1 Expandable tank for separating particulates from drilling fluid and method
09/16/1999WO1999031352A3 Isolation system for two producing formations
09/15/1999EP0941200A1 Method and apparatus for disconnecting and retrieving multiple risers attached to a floating vessel
09/15/1999EP0851843A4 Subsurface remediation method and apparatus
09/15/1999CN2338487Y Perforator of detonator releasing and unlocking opening type
09/15/1999CN1228828A Pump
09/15/1999CN1228826A Swivel
09/15/1999CN1228825A Subsea module
09/14/1999US5952603 Insert and twist method and apparatus for securing a shaped charge to a loading tube of a perforating gun
09/14/1999US5950732 Useful for recovering liquid hydrocarbons from gas from hydrates of hydrate formation on an ocean floor
09/14/1999US5950728 Injecting hydrogen and hot water into well; monitoring pressure; recovering hydrocarbons
09/14/1999US5950726 Increased oil and gas production using elastic-wave stimulation
1 ... 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 ... 642