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)
12/2010
12/30/2010US20100326655 Method and Facility for Treating Waste Drilling Mud
12/30/2010CA2706359A1 Spherical sand separators
12/29/2010WO2010151661A2 Sampling skid for subsea wells
12/29/2010WO2010151574A2 Water injection systems and methods
12/29/2010WO2010151392A1 Oil water separation apparatus
12/29/2010WO2010151170A1 Device for producing an electrohydraulic effect on a well bottom-hole zone
12/29/2010WO2010150123A2 Method for treatment of a well using high solid content fluid delivery
12/29/2010WO2010150122A1 Method and composition to increase viscosity of crosslinked polymer fluids
12/29/2010WO2010150107A1 Scavenger compositions and their use
12/29/2010WO2010149954A1 Methods for treating a well with a cross-linked water-soluble polymer-complexed metal cation network and an aromatic compound capable of forming a chelating agent to uncross-link the polymer
12/29/2010WO2010149953A2 Carbon capture and storage using minimal offshore structures
12/29/2010WO2010149787A1 Phase separator
12/29/2010WO2010149643A1 A completion assembly and a method for stimulating, segmenting and controlling erd wells
12/29/2010WO2010148494A1 Apparatus and method for stimulating subterranean formations
12/29/2010WO2010129396A3 Universal frac sleeve
12/29/2010WO2010129178A3 System and method of providing high pressure fluid injection with metering using low pressure supply lines
12/29/2010WO2010126395A3 Method and assembly for recovering oil using elastic vibration energy
12/29/2010WO2010023032A3 Installation for the in situ extraction of a substance containing carbon
12/29/2010WO2009133542A3 Methods and apparatus for hydrocarbon recovery
12/29/2010EP2267269A1 Method for developing oil pools in carbonate reservoirs having a high heterogeneity of permeability stratification
12/29/2010EP2267268A2 Apparatus and methods to protect connections
12/29/2010EP2267098A1 Scavenger compositons and their use
12/29/2010EP2266676A1 Phase separator
12/29/2010EP2265798A2 Method for treating a hydrocarbon containing formation
12/29/2010EP2265797A2 Method for treating a hydrocarbon containing formation
12/29/2010EP2265796A2 Method for recovery of hydrocarbons from a subsurface hydrocarbon containing formation
12/29/2010EP2265795A2 Methods of treating a hydrocarbon containing formation
12/29/2010EP2265794A2 Bellows valve
12/29/2010EP2265791A1 Device and method of lining a wellbore
12/29/2010CN201689292U Intelligent well simulated experiment device
12/29/2010CN201687513U Underground borehole hydraulic fracturing system
12/29/2010CN201687470U Dynamic filtration instrument of fracture acidizing working solution
12/29/2010CN201687465U Stopper type pressure gauge capable of measuring flow pressure at rear of eccentric filling wellhead
12/29/2010CN201687455U Three-dimensional staggered well pattern structure of a horizontal well
12/29/2010CN201687454U Casing damage well fracture balancing sand blower
12/29/2010CN201687453U Ratio-control flow device
12/29/2010CN201687452U Injection tool for slim-hole well borehole operation
12/29/2010CN201687451U Adjustable current flow blanking plug
12/29/2010CN201687450U Downhole restrictor realizing linkage of unlocking and unsetting
12/29/2010CN201687449U Well entry anti-lock downhole throttle
12/29/2010CN201687448U Underground multi-controller
12/29/2010CN201687447U Vortex flow self-cleaning type sand carrying and sand control pipe
12/29/2010CN201687446U Welding straight seam type sieve tube with base tube
12/29/2010CN201687445U Double-chain synchronous vertical belt pumping unit
12/29/2010CN201687444U Double-type energy-saving pumping unit
12/29/2010CN201687443U One-to-two wheel type pumping unit
12/29/2010CN201687442U Winding type energy-saving electric control oil pumping machine
12/29/2010CN201687441U Energy-saving pumping unit pulled by composite steel belt
12/29/2010CN201687440U Belt tensioning device of oil pumping unit
12/29/2010CN201687439U Dynamic monitoring system for oil well fluid production rate
12/29/2010CN201687429U Coal mine down-hole drilling hydraulic fracture open hole packer
12/29/2010CN201687414U Polish rod operating protective cover
12/29/2010CN201687407U Gas-lift completion string used for high angle deviated holes
12/29/2010CN201687403U Heat insulating pipe for producing oil
12/29/2010CN1957158B Temperature limited heaters used to heat subsurface formations
12/29/2010CN1729347B Self-diverting pre-flush acid for sandstone and method for processing sandstone stratum
12/29/2010CN101929670A Oilfield steam injection boiler
12/29/2010CN101929330A Remote control cock type steel ball delivery system
12/29/2010CN101929329A Gravel filling sand control device of horizontal well screen pipe
12/29/2010CN101929328A Dynamic water filter material throwing technological method of geothermal well
12/29/2010CN101929327A Electric submersible pump producing tubular column with sand filtering and discharging functions and operating method thereof
12/29/2010CN101929326A Geothermal well layer-by-layer filter material feeding process
12/29/2010CN101929325A Novel beam counterweight connecting device
12/29/2010CN101929324A Offset crank device
12/29/2010CN101929323A Sealed packing element for deep swabbing of oil well
12/29/2010CN101929322A New energy oil pumping machine
12/29/2010CN101929321A Direct-drive beam pumping unit with permanent-magnetic synchronous rotation motor
12/29/2010CA2766576A1 Phase separator
12/29/2010CA2765948A1 Method and composition to increase viscosity of crosslinked polymer fluids
12/29/2010CA2765366A1 Method for treatment of a well using high solid content fluid delivery
12/29/2010CA2765123A1 Methods for treating a well with a cross-linked water-soluble polymer-complexed metal cation network and an aromatic compound forming a chelating agent to uncross-link the polymer
12/29/2010CA2670416A1 Split stream oilfield pumping system utilizing recycled, high reid vapour pressure fluid
12/28/2010US7858564 Well fluid comprising a fluorinated liquid phase
12/28/2010US7858563 using a hydrocarbon-responsive fluid thickened with an oligomeric surfactant consisting of from 2 to 8-linked surfactant monomer subunits; controlling viscoelasticity
12/28/2010US7858561 Degradable polymers for wellbore fluids and processes
12/28/2010US7857063 Centraliser
12/28/2010US7857062 Configurable wellhead system with permanent fracturing spool and method of use
12/28/2010US7857060 System, method and apparatus for concentric tubing deployed, artificial lift allowing gas venting from below packers
12/28/2010US7857059 Apparatus for mitigating slugging in flowline systems
12/28/2010US7857057 Method of fracturing hydrocarbon-bearing formation with coated porous polyolefin particulate
12/28/2010US7857056 Hydrocarbon recovery from impermeable oil shales using sets of fluid-heated fractures
12/28/2010US7857055 treatment fluid for treating a subterranean formation formed from an aqueous solution of a polysaccharide (guar or its derivative), a polyacrylamide, a crosslinking agent
12/28/2010US7857051 Internal breaker for oilfield treatments
12/28/2010US7857050 Flow control using a tortuous path
12/28/2010US7857048 Method for breaking fracturing fluids
12/26/2010CA2708690A1 Process for producing cellulose beads from solutions of cellulose in ionic liquid
12/26/2010CA2708188A1 Pattern steamflooding with horizontal wells
12/25/2010CA2707884A1 Acidic viscosity enhancer for viscoelastic surfactant fluids
12/25/2010CA2670000A1 Oil or gas well
12/23/2010WO2010148204A2 Particle stabilized emulsions for extraction of hydrocarbons from oil sands and oil shale
12/23/2010WO2010147999A2 High-ratio tubular expansion
12/23/2010WO2010147919A2 Method and device for maintaining sub-cooled fluid to esp system
12/23/2010WO2010147788A1 Gravel pack completions in lateral wellbores of oil and gas wells
12/23/2010WO2010147780A1 Stimulation technique for open hole well
12/23/2010WO2010147680A1 Improved down hole delivery system
12/23/2010WO2010147496A1 Clean burner system and method with air charging by gas-turbine engine
12/23/2010WO2010147482A1 A method for disposal of drilling waste, contaminated sediments and residual waste and a disposal facility for same
12/23/2010WO2010146057A2 Expandable pipe section
12/23/2010WO2010145676A1 Method of creating a carbon dioxide hydrate
12/23/2010WO2010145674A1 Wellbore tubing expansion cone
1 ... 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 ... 642