Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
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09/28/2004 | CA2154846C Method and apparatus for testing wells using dual coiled tubing |
09/23/2004 | WO2003102348A3 Multi seam coal bed/methane dewatering and depressurizing production system |
09/23/2004 | US20040186700 Force-balanced roller-cone bits, systems, drilling methods, and design methods |
09/23/2004 | US20040182609 Force-balanced roller-cone bits, systems, drilling methods, and design methods |
09/23/2004 | US20040182608 Force-balanced roller-cone bits, systems, drilling methods, and design methods |
09/23/2004 | US20040182606 Method and system for predicting performance of a drilling system for a given formation |
09/23/2004 | US20040182579 Expanding wellbore junction |
09/23/2004 | US20040182578 Expanding wellbore junction |
09/23/2004 | US20040182572 Antimicrobial with limited diffusion properties due to a low solubility, such as for instance a polymeric amine, can be utilized within the well bore to minimize diffusion into the surrounding geological structures |
09/23/2004 | US20040182568 Expanding wellbore junction |
09/16/2004 | WO2004079150A2 Full bore lined wellbores |
09/16/2004 | CA2683763A1 Full bore lined wellbores |
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 | EP0902824B1 Fuel additives |
09/15/2004 | CN2641280Y Novel and self travelling wheel type repairing machine |
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 | US6789620 Downhole sensing and flow control utilizing neural networks |
09/14/2004 | CA2322154C Energy recovery in a wellbore |
09/14/2004 | CA2226923C Power management system for downhole control system in a well and method of using same |
09/09/2004 | US20040173358 Apparatus and methods for tubular makeup interlock |
09/09/2004 | US20040173355 Apparatus and methods for expanding tubulars in a wellbore |
09/08/2004 | EP1454028A2 Proppant recovery system |
09/07/2004 | US6787758 Wellbores utilizing fiber optic-based sensors and operating devices |
09/07/2004 | US6786283 Methods and associated apparatus for drilling and completing a wellbore junction |
09/07/2004 | CA2363878C System and method for monitoring corrosion in oilfield wells and pipelines utilizing time-domain-reflectometry |
09/07/2004 | CA2236753C Method of controlling development of an oil or gas reservoir |
09/02/2004 | WO2004074631A1 Warning device to prevent clutch burning on a well service rig |
09/02/2004 | WO2004074159A1 Apparatus and device for minimizing slippage on a drum clutch |
09/02/2004 | WO2004011836A3 Apparatus and method to complete a multilateral junction |
09/02/2004 | WO2003098153B1 Downhole tool deployment safety system and methods |
09/02/2004 | US20040168829 Subsea controlled milling |
09/02/2004 | US20040168811 Subsea chemical injection unit for additive injection and monitoring system for oilfield operations |
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 | US20040168807 Reduced debris milled multilateral window |
09/01/2004 | CN2637717Y Multifunction cross well carriage |
08/31/2004 | CA2357504C Well planning and design |
08/31/2004 | CA2195731C Flow segregator for multi-drain well completion |
08/26/2004 | US20040167762 Force-balanced roller-cone bits, systems, drilling methods, and design methods |
08/26/2004 | US20040165760 Non-destructive inspection of downhole equipment |
08/26/2004 | US20040163808 Methods of downhole testing subterranean formations and associated apparatus therefor |
08/26/2004 | US20040163803 Methods of downhole testing subterranean formations and associated apparatus therefor |
08/25/2004 | EP1448923A1 Subsea connection apparatus |
08/25/2004 | EP1448867A2 Thermoacoustic electric power generation |
08/25/2004 | CN2635910Y Oil well sleeve patching tool |
08/25/2004 | CA2458549A1 Non-destructive inspection of downhole equipment |
08/24/2004 | USRE38567 Apparatus and method for self adjusting downlink signal communication |
08/24/2004 | US6779608 Surface pump assembly |
08/24/2004 | US6779605 Downhole tool deployment safety system and methods |
08/19/2004 | WO2004070164A1 Junction assembly, system and method for providing a downhole junction |
08/19/2004 | WO2004070159A2 Apparatus and methods for drilling a wellbore using casing |
08/19/2004 | US20040160726 Microelectromechanical Devices |
08/19/2004 | US20040159466 Apparatus and methods for forming a lateral wellbore |
08/19/2004 | US20040159444 Method and apparatus to facilitate wet or dry control line connection for the downhole environment |
08/19/2004 | US20040159436 Three-dimensional well system for accessing subterranean zones |
08/19/2004 | US20040159435 Apparatus and methods to complete wellbore junctions |
08/19/2004 | US20040159429 Testing a junction of plural bores in a well |
08/19/2004 | CA2808302A1 Apparatus and methods for drilling a wellbore using casing |
08/19/2004 | CA2725717A1 Apparatus and methods for drilling a wellbore using casing |
08/19/2004 | CA2522661A1 Junction assembly, system and method for providing a downhole junction |
08/18/2004 | EP1386386B1 Downhole torque-generating and generator combination apparatus |
08/12/2004 | US20040158446 Force-balanced roller-cone bits, systems, drilling methods, and design methods |
08/12/2004 | US20040158445 Force-balanced roller-cone bits, systems, drilling methods, and design methods |
08/12/2004 | US20040154810 Method and system for increasing tubing resistance to pressure |
08/11/2004 | CN2632311Y Casing diameter variable well sandproof filler |
08/10/2004 | US6772841 Expandable float shoe and associated methods |
08/10/2004 | CA2418565A1 Apparatus, system and method for providing a downhole junction |
08/10/2004 | CA2308528C Method and apparatus for handling and disposal of oil and gas well drill cuttings |
08/05/2004 | WO2004033840A3 Methods and apparatus for open hole drilling |
08/05/2004 | US20040149444 Multilateral well construction and sand control completion |
08/05/2004 | US20040149437 Methods of downhole testing subterranean formations and associated apparatus therefor |
08/05/2004 | US20040149418 In-situ casting of well equipment |
08/04/2004 | EP1442197A1 Device for cleaning an inner pipe inserted into a gas or oil conveying boring |
08/04/2004 | EP1264066A4 Template and system of templates for drilling and completing offsite well bores |
08/04/2004 | EP1159510B1 Wellbore primary barrier and related systems |
08/03/2004 | US6772134 Control means for a horizontal boring tool |
08/03/2004 | US6771563 Apparatus for deploying a load to an underwater target position with enhanced accuracy and a method to control such apparatus |
08/03/2004 | US6769485 In situ production of synthesis gas from a coal formation through a heat source wellbore |
08/03/2004 | US6769483 In situ thermal processing of a hydrocarbon containing formation using conductor in conduit heat sources |
08/03/2004 | CA2285193C Method and apparatus for deploying a well tool into a lateral wellbore |
07/29/2004 | WO2004009959A3 Disposal of deleterious materials from a well |
07/29/2004 | US20040144570 Downhole torque-generating and generator combination apparatus |
07/29/2004 | US20040144530 Toroidal choke inductor for wireless communication and control |
07/28/2004 | EP1204808B1 Drilling and completion system for multilateral wells |
07/27/2004 | US6768214 Vibration based power generator |
07/27/2004 | US6767165 Method and apparatus for connecting underwater conduits |
07/27/2004 | US6766861 Stackable guide funnel system and method |
07/27/2004 | US6766859 Wellbore liner system |
07/22/2004 | WO2004062081A1 Downhole communication system |
07/22/2004 | WO2003098153A3 Downhole tool deployment safety system and methods |
07/22/2004 | WO2003048518A3 Apparatus and method for horizontal subsea connection |
07/22/2004 | US20040140726 Downhole torque generator |
07/22/2004 | US20040140129 Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings |
07/22/2004 | US20040140098 Subsea exploitation device |
07/21/2004 | EP1438478A1 Guide device in an offshore drilling installation |