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)
11/2005
11/03/2005DE10149092B4 Verfahren zur Blanketspiegel-Überwachung von Speicher- und Solegewinnungskavernen und Verwendung faseroptischer Sensorkabel hierfür Method for Blanketspiegel monitoring of storage and brine production caverns and use fiber-optic sensor cable for this purpose
11/03/2005CA2579496A1 Subsurface electrical heaters using nitride insulation
11/03/2005CA2563342A1 A method and a device for regulating a fluid flow between an outside and an inside of a well pipe
11/03/2005CA2505667A1 Tubing/casing connection for u-tube wells
11/02/2005EP1591619A1 Enhanced oil recovery method
11/02/2005EP1552104A4 System to reduce hydrostatic pressure in risers using buoyant spheres
11/02/2005EP1322834B1 Modular seabed processing system
11/02/2005EP1219002B1 Electrical power distribution suitable for a substantially underwater system
11/02/2005CN2737941Y Concentric tube separated layer gas injection tube column
11/02/2005CN2737940Y Measuring-regulating linkage ground control system
11/02/2005CN2737939Y Apparatus for controlling oil well water-mixing quantity
11/02/2005CN2737938Y Oil field variable frequency sterilizer
11/02/2005CN2737937Y Multifunction oil extracting tubular column
11/02/2005CN2737936Y Spring energy-storing beam balanced pump
11/02/2005CN1690359A Method and apparatus and program storage device for front tracking in hydraulic fracturing simulators
11/02/2005CN1690358A Method and apparatus for reducing pressure in a perforating gun
11/02/2005CN1690357A Openhole perforating device
11/01/2005US6960294 Apparatus for the separation of solids from liquids by dissolved gas floatation
11/01/2005US6959767 Remediation treatment of sustained casing pressures (SCP) in wells with top down surface injection of fluids and additives
11/01/2005US6959764 Baffle system for two-phase annular flow
11/01/2005US6959762 Method and apparatus for formation damage removal
11/01/2005US6959761 In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells
11/01/2005US6959760 Downhole pulser
11/01/2005CA2345301C Initiation of explosive devices
11/01/2005CA2303489C Production fluid control device for oil/gas wells
11/01/2005CA2175613C Surfactant additive for oilfield acidizing
11/01/2005CA2145730C Method and apparatus for anchoring a wellbore tool to a casing in a wellbore including a primary and a secondary anchor release mechanism
11/01/2005CA2120486C Method and apparatus for locating and re-entering one or more horizontal wells using mandrel means
10/2005
10/30/2005CA2504278A1 Apparatus and method
10/27/2005WO2005100746A1 Tagged propping agents and related methods
10/27/2005WO2005100745A1 Composition and process for enhanced oil recovery
10/27/2005WO2005100744A1 Apparatus and method for dewatering low pressure gradient gas wells
10/27/2005WO2005100743A1 Completion with telescoping perforation & fracturing tool
10/27/2005WO2005100742A1 One trip completion system
10/27/2005WO2005100741A1 Method and system for starting up a pipeline
10/27/2005WO2005085361A3 Networked polymeric gels and use of such polymeric gels in hydrocarbon recovery
10/27/2005WO2005083228A9 Connection system for subsea flow interface equipment
10/27/2005WO2005045174A3 Gravel pack completion with fiber optic monitoring
10/27/2005US20050238440 Top tensioned riser
10/27/2005US20050236842 Hydrocratic generator
10/27/2005US20050236834 Expandable tubular connection
10/27/2005US20050236324 Relating to well head separators
10/27/2005US20050236183 Method and Apparatus for Reducing Pressure in a Perforating Gun
10/27/2005US20050236163 Mono-diameter wellbore casing
10/27/2005US20050236162 Method and apparatus for expandable liner hanger with bypass
10/27/2005US20050236159 Threaded connection for expandable tubulars
10/27/2005US20050236156 Pumping from two levels of a pool of production fluid, and one way valve therefore
10/27/2005US20050236155 Online thermal and watercut management
10/27/2005US20050236154 Isolation assembly for coiled tubing
10/27/2005US20050236153 Deploying an assembly into a well
10/27/2005US20050236152 Method and apparatus and program storage device for front tracking in hydraulic fracturing simulators
10/27/2005DE102004016518A1 Increasing the conveying capacity of oil or gas sources comprises introducing mixtures containing components which react together to produce heat to the oil or gas source
10/27/2005CA2593418A1 Completion with telescoping perforation & fracturing tool
10/27/2005CA2562085A1 Apparatus and method for dewatering low pressure gradient gas wells
10/26/2005EP1588022A1 A system and a method for prediction and treatment of slugs being formed in a flow line or wellbore tubing
10/26/2005EP1587749A2 Distributed natural gas storage system(s) using oil and gas and other well(s)
10/26/2005EP1587598A2 Polyether polyesters having anionic functionality
10/26/2005EP1350008B1 A sleeve valve for controlling fluid flow between a hydrocarbon reservoir and tubing in a well and method for the assembly of a sleeve valve
10/26/2005EP1350007B1 Device for an opening in an outer sleeve of a sleeve valve and a method for the assembly of a sleeve valve
10/26/2005EP1141518B1 Downhole sealing for production tubing
10/26/2005CN2736531Y Down-hole thick oil production system by hydraulic double pump
10/26/2005CN2736530Y 偏心配水器 Eccentric water
10/26/2005CN2736529Y Sand proof packing tool
10/26/2005CN1688792A Downhole separator and method
10/26/2005CN1688791A Self-conforming well screen
10/26/2005CN1688789A Method for removing gravel pack screens
10/26/2005CN1688787A Apparatus and methods for installing casing in a borehole
10/26/2005CN1687561A Method for deeply treating water extracted out from oil field
10/26/2005CN1687560A New method of water injection in low pressure for oil well
10/26/2005CN1687559A Intelligent pumping unit of flexible drive
10/26/2005CA2505318A1 Method and apparatus and program storage device for front tracking in hydraulic fracturing simulators
10/25/2005US6958704 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters
10/25/2005US6957701 Method and apparatus for stimulation of multiple formation intervals
10/25/2005CA2450225C Downhole flow control devices
10/25/2005CA2439325C Method of cleaning out blockages which prevent operation of a reciprocating downhole tubing pump
10/25/2005CA2411363C Apparatus and method to complete a multilateral junction
10/25/2005CA2353750C System and method for removing solid particulates from a pumped wellbore fluid
10/25/2005CA2325120C Method and apparatus for perforating and stimulating oil wells
10/25/2005CA2303983C Method and apparatus for controlling the liquid level in a well
10/25/2005CA2284865C Expandable well screen
10/25/2005CA2280034C Tool and method for removing excess cement from the top of a liner after hanging and cementing thereof
10/25/2005CA2209515C Petroleum waste process and pumping system
10/25/2005CA2143892C Method and system for real-time monitoring of earth formation fracture movement
10/22/2005CA2591567A1 Method of fracing or stimulating a formation
10/20/2005WO2005098200A2 Paraffin inhibitors
10/20/2005WO2005098199A2 Clay stabilization in sub-surface formations
10/20/2005WO2005098197A1 Flow switchable check valve
10/20/2005WO2005065334A3 Multiple azimuth control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments
10/20/2005US20050232708 Automatically adjustable caisson clamp
10/20/2005US20050231022 Apparatus, method and system for single well solution-mining
10/20/2005US20050230124 Mono-diameter wellbore casing
10/20/2005US20050230123 Seal receptacle using expandable liner hanger
10/20/2005US20050230122 Setting Tool for Hydraulically Actuated Devices
10/20/2005US20050230121 ESP/gas lift back-up
10/20/2005US20050230120 Sand plunger
10/20/2005US20050230117 Method of treating oil and gas wells
10/20/2005US20050230116 Methods and compositions for use with spacer fluids used in subterranean well bores
10/20/2005US20050230113 Well treatment fluid and methods for blocking permeability of a subterranean zone
10/20/2005US20050230111 agglomeration of particles having curable coatings, by the pumping mixtures of the particles and liquid fracturing fluid into subterranean zones, then curing the coatings with heat; stabiliztion; well completion
10/20/2005US20050230107 Methods of well stimulation during drilling operations
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