| 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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| 09/16/2004 | US20040177951 Sand removal and device retrieval tool |
| 09/16/2004 | CA2683763A1 Full bore lined wellbores |
| 09/16/2004 | CA2517392A1 Method of installation of a tension leg platform |
| 09/15/2004 | EP1456502A1 Use of charged amphiphilic statistic polymers for thickening phases comprising giant micelles of surfactants and aqueous compositions comprising same |
| 09/15/2004 | EP1278933B1 Internal gate valve for flow completion systems |
| 09/15/2004 | EP1276964B1 A method for treating a hydrocarbon containing formation |
| 09/15/2004 | EP1276963B1 In situ recovery of hydrocarbons from a kerogen-containing formation |
| 09/15/2004 | EP1276961B1 Method for treating a hydrocarbon-containing formation |
| 09/15/2004 | EP1276960B1 A method for sequestering a fluid within a hydrocarbon containing formation |
| 09/15/2004 | EP1133617B1 Wellbore system including a conduit and an expandable device |
| 09/15/2004 | CN2641348Y Back-flow resistant oil nipple for oil well with oil submersible pump |
| 09/15/2004 | CN2641327Y Sand blocking proof type screw stem pump |
| 09/15/2004 | CN2641320Y Positive flushing oil prodn. deep well tube type pump |
| 09/15/2004 | CN2641286Y Adjustable water distribution means |
| 09/15/2004 | CN2641285Y Constant flow water tap |
| 09/15/2004 | CN2641284Y Subhorsehead balancing like lever beam type puming unit |
| 09/15/2004 | CN2641283Y Automatic weight adding/lowering mechanism for pumping unit |
| 09/15/2004 | CN2641282Y Oil puming machine |
| 09/15/2004 | CN2641281Y Friction directino-changing type oil pumping machine having guide wheel |
| 09/15/2004 | CN1529787A Steel pipe for use as embedded expandedpipe, and method of embedding oil-well steel pipe |
| 09/15/2004 | CN1529238A Three-dimensinal composite drive computer simulating method for low-concentration surface active agent and phase state joint |
| 09/15/2004 | CN1529038A Oil field seperated layer water injection well underground water-injection tubular column and complete measuring apparatus |
| 09/15/2004 | CN1529037A Donkey-head one-way rotary wellhead type pumping unit |
| 09/15/2004 | CN1529036A Oil-pumping workover rig |
| 09/15/2004 | CN1528854A Compound acidifying liquid containing nitric acid and boratofluroic acid and its use method |
| 09/15/2004 | CN1166489C Control process for laser cutting sieve tube |
| 09/14/2004 | USRE38578 Method and apparatus for cementing a well |
| 09/14/2004 | US6791130 Photoconductor-on-active-pixel (POAP) sensor utilizing a multi-layered radiation absorbing structure |
| 09/14/2004 | US6790256 Gas carry-under monitoring and control system |
| 09/14/2004 | US6789822 Expandable slotted tubing string and method for connecting such a tubing string |
| 09/14/2004 | US6789628 Systems and methods for controlling flow and access in multilateral completions |
| 09/14/2004 | US6789625 In situ thermal processing of a hydrocarbon containing formation using exposed metal heat sources |
| 09/14/2004 | US6789624 Apparatus and method for gravel packing an interval of a wellbore |
| 09/14/2004 | US6789623 Method and apparatus for open hole gravel packing |
| 09/14/2004 | US6789622 Apparatus for and a method of anchoring an expandable conduit |
| 09/14/2004 | US6789621 Intelligent well system and method |
| 09/14/2004 | CA2322154C Energy recovery in a wellbore |
| 09/14/2004 | CA2313837C Positioning of the tubing string in a steam injection well |
| 09/14/2004 | CA2226923C Power management system for downhole control system in a well and method of using same |
| 09/10/2004 | WO2004076812A1 Methods for passing a swelling agent into a reservoir to block undesirable flow paths during oil production |
| 09/10/2004 | WO2004076798A2 Apparatus for radially expanding and plastically deforming a tubular member |
| 09/10/2004 | WO2004027786A3 Protective sleeve for expandable tubulars |
| 09/10/2004 | WO2004026017B1 Residual stresses in expandable tubular casing |
| 09/10/2004 | WO2004005661B1 System and mehtod for automating or metering fluid recovered at a well |
| 09/10/2004 | WO2003104601B1 Mono-diameter wellbore casing |
| 09/10/2004 | WO2003089753A3 Coiled tubing having multiple strings of smaller tubing embedded therein |
| 09/10/2004 | WO2003067201A3 Extend of detonation determination method using seismic energy |
| 09/10/2004 | WO2003062583A3 Fluid well pumping system |
| 09/10/2004 | WO2003058022B1 Seal receptacle using expandable liner hanger |
| 09/10/2004 | CA2641567A1 Method and apparatus to complete a well having tubing inserted through a valve |
| 09/09/2004 | US20040176478 amphoteric/zwitterionic surfactant and an organic acid/salt and/or inorganic salts useful as a thickener for the suspension of particles |
| 09/09/2004 | US20040173361 Method of expanding a tubular element in a wellbore |
| 09/09/2004 | US20040173360 Downhole tubing |
| 09/09/2004 | US20040173355 Apparatus and methods for expanding tubulars in a wellbore |
| 09/09/2004 | US20040173352 Gravel packing apparatus having an integrated sensor and method for use of same |
| 09/09/2004 | US20040173350 Intelligent well system and method |
| 09/09/2004 | US20040173349 Expandable wellbore stabiliser |
| 09/09/2004 | US20040173348 Casing adapter tool for well servicing |
| 09/08/2004 | CN2639527Y High-energy mixing discharger device |
| 09/08/2004 | CN2639526Y Device for distributing and injecting oil field assitant |
| 09/08/2004 | CN2639525Y Hot-water, electric, steam combined supply device |
| 09/08/2004 | CN2639524Y Connecting rod safety protector for beam-pumping unit |
| 09/08/2004 | CN2639523Y Bottom moving type non-beam intelligent beam-pumping unit |
| 09/08/2004 | CN2639522Y Planetary gear transmission change-over long stroke beam-pumping unit |
| 09/08/2004 | CN1526913A Oil field oil-water well unblocking and injection increasing method and the apparatus for implementing the same method |
| 09/08/2004 | CN1526912A Swing arm offset vertical oil-pumping unit |
| 09/07/2004 | US6788619 Concentrating seismic energy in a selected target point in an underground formation |
| 09/07/2004 | US6787758 Wellbores utilizing fiber optic-based sensors and operating devices |
| 09/07/2004 | US6787507 Stabilizing clayey formations |
| 09/07/2004 | US6787506 Use of dispersion polymers as friction reducers in aqueous fracturing fluids |
| 09/07/2004 | US6787027 Separating emulsion of bituminous oil and water by heating, phase separation, and indirect heat exchanging |
| 09/07/2004 | US6786285 Flow control regulation method and apparatus |
| 09/07/2004 | US6786153 Printing rolls having wear indicators and methods for determining wear of printing and anilox rolls and sleeves |
| 09/07/2004 | CA2421376A1 Hybrid coiled tubing/fluid pumping unit |
| 09/07/2004 | CA2236753C Method of controlling development of an oil or gas reservoir |
| 09/02/2004 | WO2004074632A1 Downhole tool with ratcheting swivel and method |
| 09/02/2004 | WO2004074629A1 Sub-sea compressor |
| 09/02/2004 | WO2004074628A1 Apparatus for supplying fluid into different zones in a formation |
| 09/02/2004 | WO2004074622A2 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 09/02/2004 | WO2003098153B1 Downhole tool deployment safety system and methods |
| 09/02/2004 | WO2003089752A3 Well completion with merged influx of well fluids |
| 09/02/2004 | US20040168809 Apparatus and method for installing a branch junction from a main well |
| 09/02/2004 | US20040168808 Monobore wellbore and method for completing same |
| 09/02/2004 | US20040168805 Damping fluid pressure waves in a subterranean well |
| 09/02/2004 | US20040168800 Method and apparatus for formation damage removal |
| 09/02/2004 | US20040168799 Apparatus and method for completing an interval of a wellbore while drilling |
| 09/02/2004 | US20040168798 Methods for passing a swelling agent into a reservoir to block undesirable flow paths during oil production |
| 09/02/2004 | US20040168796 Compliant swage |
| 09/02/2004 | US20040168572 Method and apparatus for separating liquid from a multi-phase liquid/gas stream |
| 09/02/2004 | CA2614179A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 09/02/2004 | CA2613131A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 09/02/2004 | CA2613007A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 09/02/2004 | CA2516140A1 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 09/01/2004 | EP1452654A2 Method for effecting fluid flow in porous materials |
| 09/01/2004 | EP1451443A2 Severe dog leg swivel for tubing conveyed perforating |
| 09/01/2004 | EP1451442A1 Methods and compositions for sealing an expandable tubular in a wellbore |
| 09/01/2004 | EP1451441A1 Resilient cement |
| 09/01/2004 | EP1451436A2 Acid gas disposal method |
| 09/01/2004 | EP1450926A1 Method and apparatus for collecting and then disposing sand contained in production fluid |
| 09/01/2004 | EP1212514B1 System for enhancing fluid flow in a well |