| 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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| 07/09/2002 | US6415877 Subsea wellbore drilling system for reducing bottom hole pressure |
| 07/09/2002 | US6415869 Method of deploying an electrically driven fluid transducer system in a well |
| 07/09/2002 | US6415868 Method and apparatus for preventing the formation of alkane hydrates in subsea equipment |
| 07/09/2002 | US6415864 System and method for separately producing water and oil from a reservoir |
| 07/09/2002 | US6415863 Apparatus and method for hanging tubulars in wells |
| 07/09/2002 | US6415509 Methods of fabricating a thin-wall expandable well screen assembly |
| 07/09/2002 | CA2260518C Hydraulic submersible pump for oil well production |
| 07/09/2002 | CA2239210C Instrumentation tubing string assembly for use in wellbores |
| 07/04/2002 | WO2002052124A2 Method and apparatus for repair operations downhole |
| 07/04/2002 | WO2002031311A3 Gas operated pump for use in a wellbore |
| 07/04/2002 | WO2002031310A3 Apparatus and method for controlling a fluid flow in a wellbore |
| 07/04/2002 | WO2002029197A3 Auto adjusting well control system |
| 07/04/2002 | WO2002027138A3 Well screen with spirally wrapped wire |
| 07/04/2002 | WO2001081240A3 In-situ heating of coal formation to produce fluid |
| 07/04/2002 | US20020084078 Method of operating an apparatus for radially expanding a tubular member |
| 07/04/2002 | US20020084077 Gimbaled table riser support system |
| 07/04/2002 | US20020084074 In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation |
| 07/04/2002 | US20020084073 Separation string for the separation of hydrocarbon from contaminants in a wellbore and method of assembling same |
| 07/04/2002 | US20020084070 Multi-layer screen and downhole completion method |
| 07/04/2002 | US20020083860 Blasting apparatus for forming horizontal underground cavities and blasting method using the same |
| 07/03/2002 | EP1219002A1 Electrical power distribution suitable for a substantially underwater system |
| 07/03/2002 | CN2498373Y Wine energy aid for cooker hood |
| 07/03/2002 | CN2498329Y Sandproof pipe column with pre-filled dual screen pipe |
| 07/03/2002 | CN2498328Y Multifunctional locking block for balancing block of sucker |
| 07/03/2002 | CN2498327Y Sucker with linked balance beam |
| 07/03/2002 | CN1357077A Method of deploying electrically driven fluid transducer system in well |
| 07/02/2002 | US6414905 Method and apparatus for communicating coded messages in a wellbore |
| 07/02/2002 | US6413299 Liquid slug and gas separation method and apparatus for gas pipelines |
| 07/02/2002 | US6413053 Apparatus and method for moving fluid |
| 07/02/2002 | US6413016 Methods of extracting liquid hydrocardon contaminants from underground zones |
| 07/02/2002 | US6412614 Downhole shock absorber |
| 07/02/2002 | US6412573 System for indicating the firing of a perforating gun |
| 07/02/2002 | US6412565 Expandable screen jacket and methods of using same |
| 07/02/2002 | US6412564 End fitting and method for attaching well screen segments |
| 07/02/2002 | US6412563 System and method for enhanced conditioning of well fluids circulating in and around artificial lift assemblies |
| 07/02/2002 | US6412562 Electrical submersible pumps in the riser section of subsea well flowline |
| 07/02/2002 | US6412559 From coal |
| 07/02/2002 | US6412557 Oilfield in situ hydrocarbon upgrading process |
| 07/02/2002 | US6412556 Cavity positioning tool and method |
| 07/02/2002 | US6412555 System and method for controlling fluid flow in one or more oil and/or gas wells |
| 07/02/2002 | US6412415 Shock and vibration protection for tools containing explosive components |
| 07/02/2002 | US6412388 Safety arming device and method, for perforation guns and similar devices |
| 07/02/2002 | CA2212411C Method for improved water well production |
| 07/02/2002 | CA2142709C Method and apparatus for in-situ treatment of landfill waste and contaminated soil |
| 06/27/2002 | WO2002050399A1 Electromagnetic coal seam gas recovery system |
| 06/27/2002 | WO2002016733B1 Hydrate formation prevention in subsea equipment with phase change material |
| 06/27/2002 | WO2002016732B1 Self-regulating heat source for subsea equipment |
| 06/27/2002 | US20020079899 Subsurface monitoring and borehole placement using a modified tubular equipped with tilted or transverse magnetic dipoles |
| 06/27/2002 | US20020079693 Remote articulated connector |
| 06/27/2002 | US20020079106 Procedures and equipment for profiling and jointing of pipes |
| 06/27/2002 | US20020079102 Method and apparatus for multilateral junction |
| 06/27/2002 | US20020079101 Hanging liners by pipe expansion |
| 06/27/2002 | US20020079100 Apparatus, methods, and applications for expanding tubulars in a wellbore |
| 06/27/2002 | US20020079099 Apparatus and method providing alternate fluid flowpath for gravel pack completion |
| 06/27/2002 | US20020079098 Method and apparatus for a tubing conveyed perforating guns fire identification system using enhanced marker material |
| 06/26/2002 | CN2497082Y Anti-pull-press oil-well pump |
| 06/26/2002 | CN2497042Y Metal bullet frame for underground perforation |
| 06/26/2002 | CN1355384A Control method for automatic balance regulation of pumping unit |
| 06/26/2002 | CN1355383A Pumping unit with regulatable horizontal or vertical position of sucker rod relative to well |
| 06/26/2002 | CN1355382A Pumping unit with telescopic arm mechanism |
| 06/26/2002 | CN1355373A Control method for preventing pump collision and over-stroke of pumping unit |
| 06/26/2002 | CN1355372A Control method for determining stroke position of pumping unit |
| 06/26/2002 | CN1355371A Method for cleaning wall without backflow |
| 06/25/2002 | US6409430 Welhead templates |
| 06/25/2002 | US6409428 Apparatus for securing a tubular structure to an anchor |
| 06/25/2002 | US6409219 Downhole screen with tubular bypass |
| 06/25/2002 | US6409175 Expandable joint connector |
| 06/25/2002 | US6408948 Tubing handling for subsea oilfield tubing operations |
| 06/25/2002 | US6408945 Tool and method for removing excess cement from the top of a liner after hanging and cementing thereof |
| 06/25/2002 | US6408942 One-trip squeeze pack system and method of use |
| 06/25/2002 | US6408691 Well monitoring system |
| 06/25/2002 | CA2189610C Well treatment fluid |
| 06/25/2002 | CA2067261C Phenolic resin coated proppants with reduced hydraulic fluid interaction |
| 06/23/2002 | WO2002040830A1 Full bore automatic gun release module |
| 06/20/2002 | WO2002048503A1 Method and apparatus for completing multiple production zones from a single wellbore |
| 06/20/2002 | WO2002048502A1 Hydraulic running tool |
| 06/20/2002 | WO2002048498A2 Enhanced oil recovery method using downhole gas |
| 06/20/2002 | WO2002048469A1 Device and method for creating at least one reaction zone in an aquifer |
| 06/20/2002 | WO2002047970A1 Low motion semisubmersible floating production system |
| 06/20/2002 | WO2002031309A3 Methods and apparatus for separating fluids |
| 06/20/2002 | WO2002009231A3 Adaptive array antenna nulling |
| 06/20/2002 | US20020077515 Allowing heat to transfer from one or more heat sources to selected section of formation; controlling heat from heat sources such that average temperature within at section of formation is less than about 375 degree, producing mixture |
| 06/20/2002 | US20020076212 In situ thermal processing of a hydrocarbon containing formation producing a mixture with oxygenated hydrocarbons |
| 06/20/2002 | US20020074134 Apparatus for actuating an annular piston |
| 06/20/2002 | US20020074130 Apparatus for radially expanding a tubular member |
| 06/20/2002 | US20020074127 Artificial lift apparatus with automated monitoring characteristics |
| 06/20/2002 | US20020074124 Concentric tubing completion system |
| 06/20/2002 | US20020074122 Method and apparatus for hydrocarbon subterranean recovery |
| 06/20/2002 | US20020074120 Method and apparatus for completing multiple production zones from a single wellbore |
| 06/20/2002 | US20020074119 Thru-tubing sand control method and apparatus |
| 06/20/2002 | US20020074118 Auto adjusting well control system |
| 06/20/2002 | US20020074117 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells |
| 06/19/2002 | EP1214500A1 A retrievable module and operating method suitable for a seabed processing system |
| 06/19/2002 | EP1214499A1 Well management system |
| 06/19/2002 | CN2495808Y symmetric and composite perforating and sand-proof device for oil well |
| 06/19/2002 | CN2495807Y Stainless steel sand-proof wire-wrapped screen pipe |
| 06/19/2002 | CN1354317A Downhole production-injection method and integrated pipe string |
| 06/18/2002 | US6406789 Composite proppant, composite filtration media and methods for making and using same |
| 06/18/2002 | US6406277 Centrifugal pump with inducer intake |
| 06/18/2002 | US6405802 Subsea flowline jumper handling apparatus |