| 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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| 09/08/2005 | US20050194152 Expander for expanding a tubular element |
| 09/08/2005 | US20050194151 Expandable anchor |
| 09/08/2005 | US20050194149 Thermal actuated plunger |
| 09/08/2005 | US20050194147 Increasing reaction efficiency of acetic acid |
| 09/08/2005 | US20050194146 Perforating gun assembly and method for creating perforation cavities |
| 09/08/2005 | US20050194145 Networked polymeric gels and use of such polymeric gels in hydrocarbon recovery |
| 09/08/2005 | US20050194143 One trip perforating, cementing, and sand management apparatus and method |
| 09/08/2005 | US20050194133 Methods of evaluating undersaturated coalbed methane reservoirs |
| 09/08/2005 | US20050194129 Expander for expanding a tubular element |
| 09/08/2005 | US20050194128 Expander for expanding a tubular element |
| 09/08/2005 | US20050194127 Expander for expanding a tubular element |
| 09/08/2005 | US20050194126 Leakage resistant shroud hanger |
| 09/08/2005 | DE20320938U1 Production of laminated woven metal wire layers, for use as filters, feeds the overlaid layers between electrodes to be brought together and bond the layers together by resistance welding |
| 09/07/2005 | EP1571105A2 Method and arangement for the storage of CO2 dissolved in water and its permanent fixation in geologic formations |
| 09/07/2005 | EP1570153A1 Downhole safety valve for central circulation completion system |
| 09/07/2005 | EP1423181A4 Downhole gas separation method and system |
| 09/07/2005 | EP1352150B1 Well screen cover |
| 09/07/2005 | EP1350006A4 Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom |
| 09/07/2005 | EP1309771A4 Method for secondary oil recovery |
| 09/07/2005 | CN2723734Y Deep well pneumatic oil production pump for oil field |
| 09/07/2005 | CN2723675Y Detactable wellhead device of screw rod pump oil production system |
| 09/07/2005 | CN2723674Y Anti-sand blocking sand pipe string for water injection well |
| 09/07/2005 | CN2723673Y Balance beam balance device for adjustable oil pumping unit |
| 09/07/2005 | CN2723672Y Ratchet semiautomatic balancing spanners |
| 09/07/2005 | CN2723671Y Down hole operation blowout retaining ball for water injection well |
| 09/07/2005 | CN1666056A Reinforced tubular threaded joint for improved sealing after plastic expansion |
| 09/07/2005 | CN1666006A Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations |
| 09/07/2005 | CN1664368A Small displacement high lift reciprocating submersible electric pump |
| 09/07/2005 | CN1664309A System for performing operations and for improving production in wells |
| 09/07/2005 | CN1664307A Throwing type fracturing equipment |
| 09/07/2005 | CN1664306A Method for redevelopment of junked drowned oil field |
| 09/07/2005 | CN1664305A Electronic, electrical and mechanical integrated dragging pumping unit |
| 09/07/2005 | CN1664304A Split diameter-changing oil testing swab |
| 09/07/2005 | CN1218113C Fracture technology for injection well for preventing closing of fracture opening and increasing injection |
| 09/07/2005 | CN1218112C Method of creating well bore |
| 09/06/2005 | US6938694 Method and apparatus for manufacturing an expandable slotted tube |
| 09/06/2005 | US6938692 Permeable cement composition and method for preparing the same |
| 09/06/2005 | US6938690 Downhole tool and method for fracturing a subterranean well formation |
| 09/06/2005 | US6938689 Communicating with a tool |
| 09/06/2005 | CA2352604C Expandable tubing joint and through-tubing multilateral system and method |
| 09/06/2005 | CA2153183C Fluid system for controlling fluid losses during hydrocarbon recovery operations |
| 09/01/2005 | WO2005080750A1 Method and actuator device |
| 09/01/2005 | WO2005080020A1 Method to provide slots in pipes |
| 09/01/2005 | WO2005079946A1 Separation of crude oil at the well head |
| 09/01/2005 | WO2005079186A2 Expandable tubular |
| 09/01/2005 | WO2005066458A3 Method for enancing the retention efficiency of treatment chemicals in subterranean formations |
| 09/01/2005 | US20050191889 Apparatus and method |
| 09/01/2005 | US20050190649 Method for monitoring seismic events |
| 09/01/2005 | US20050189117 Method & Apparatus for Selective Injection or Flow Control with Through-Tubing Operation Capacity |
| 09/01/2005 | US20050189116 Submersible well pump installation procedure |
| 09/01/2005 | US20050189115 Subsea Intervention |
| 09/01/2005 | US20050189114 System and method for multiple wells from a common surface location |
| 09/01/2005 | US20050189113 Using an acidic treatment fluid containing an acidic fluid and at least one esterquat with the formula : {R(4-m)N+ [(CH2)n O C(O)}p R']m pX-, (R and R'= alkyl, aryl or alkylaryl, X= anion, m=1 to 3, p= at least 1, n=1,6 ) in a subterranean treatment operation to inhibit metal corrosion |
| 09/01/2005 | US20050189108 Pressure and strain pulsing injected liquid; increasing permeability of ground material around bore holes |
| 09/01/2005 | US20050189107 Annular pressure relief collar |
| 09/01/2005 | US20050189106 Flow control apparatus for use in a wellbore |
| 09/01/2005 | US20050189101 Downhole fluid disposal apparatus and methods |
| 09/01/2005 | US20050188878 Unique multiple point initiated shaped charge perforator and method for its use |
| 09/01/2005 | DE102004004689A1 Process to trap and store atmospheric carbon dioxide in a chilled sub-surface store within calcium mineral deposits |
| 09/01/2005 | CA2565546A1 Separation of crude oil at the well head |
| 09/01/2005 | CA2555388A1 Method to provide slots in pipes |
| 09/01/2005 | CA2498984A1 Apparatus and method for determining the position of an elongated member of a pump assembly |
| 08/31/2005 | EP1568600A1 Arrangement and method for attaching a support element to a wall at the sea bottom |
| 08/31/2005 | EP1461561B1 Threaded tubular joint comprising sealing surfaces |
| 08/31/2005 | EP1436482A4 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 08/31/2005 | CN2721910Y Drum oil sucker with long stroke |
| 08/31/2005 | CN2721875Y Beam sensor |
| 08/31/2005 | CN2721873Y Caseless pressure generator |
| 08/31/2005 | CN2721872Y Anchored cracking sandproof tool |
| 08/31/2005 | CN2721871Y Self-destruction perforating bullet rack of oil-gas well |
| 08/31/2005 | CN2721870Y Overcoating sandproof pipe of steel wire gauze |
| 08/31/2005 | CN2721869Y Layer adjusting producing tubular column with multiple oil layer |
| 08/31/2005 | CN2721868Y Deep-pumping tubular column for extracting oil |
| 08/31/2005 | CN2721865Y Reducing and cracking packer |
| 08/31/2005 | CN1662800A Device having mstallable reference pressure for measuring pressure difference |
| 08/31/2005 | CN1216806C Water treatment method for heat recovering heavy oil |
| 08/31/2005 | CN1216805C Water treating method for hot recovering heavy oil |
| 08/30/2005 | US6937923 Controller system for downhole applications |
| 08/30/2005 | US6936454 Fracture of subterranean formation which surrounds a well bore; provie fracturing fluid, inject into well bore, release pressure from fracturing fluid |
| 08/30/2005 | US6935513 Method and apparatus for mixture separation |
| 08/30/2005 | US6935432 Method and apparatus for forming an annular barrier in a wellbore |
| 08/30/2005 | US6935430 Method and apparatus for expanding a welded connection |
| 08/30/2005 | US6935429 Flash welding process for field joining of tubulars for expandable applications |
| 08/30/2005 | US6935426 non-viscous fluid, having a heavy concentration of an appropriate breaker, is pumped into a well in front of viscosified fluid, such as a cross-linked polymeric fracturing fluid, to saturate permeable media with breaker agent; removes polymer cake |
| 08/30/2005 | US6935424 Mitigating risk by using fracture mapping to alter formation fracturing process |
| 08/30/2005 | US6935422 Expanding wellbore junction |
| 08/30/2005 | CA2361359C Method and apparatus for multilateral junction |
| 08/30/2005 | CA2320324C Improvements in or relating to reducing water flow |
| 08/30/2005 | CA2238276C Centrifugal pump with diluent injection ports |
| 08/25/2005 | WO2005078237A1 Annulus plugging detection using a pressure transmitter in gas-lift oil production |
| 08/25/2005 | WO2005078236A1 Method and system for lining multilateral wells |
| 08/25/2005 | WO2005078235A1 Suppressing fluid communication to or from a wellbore |
| 08/25/2005 | WO2005078231A1 Tool and method for drilling, reaming and cutting |
| 08/25/2005 | WO2005076904A2 Process to sequester co2 in natural gas hydrate fields and simultaneously recover methane |
| 08/25/2005 | WO2005076803A2 Apparatus for changing wellbore fluid temperature |
| 08/25/2005 | WO2005042905A3 A piggable flowline-riser system |
| 08/25/2005 | WO2005021921A3 A method of radially expanding and plastically deforming tubular members |
| 08/25/2005 | WO2005010129A3 Method for natural gas production |
| 08/25/2005 | WO2005005763A3 Method for drilling with improved fluid collection pattern |
| 08/25/2005 | US20050184521 Tubing connector |