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)
06/2003
06/11/2003CN2555421Y Oil pump having sand proofing clamp
06/11/2003CN2555394Y Vacuum thermal insulation heat pouring compensator
06/11/2003CN2555393Y Integrally conbined hole shooter
06/11/2003CN1423575A Gas recovery device
06/11/2003CN1423029A Oil field waterflooding and section-adjusting production-increasing process
06/11/2003CA2413710A1 Methods and compositions for forming permeable cement sand screens in wells
06/10/2003US6575250 Expanding a tubular element in a wellbore
06/10/2003US6575247 Device and method for injecting fluids into a wellbore
06/10/2003US6575246 Method and apparatus for gravel packing with a pressure maintenance tool
06/10/2003US6575245 Apparatus and methods for gravel pack completions
06/10/2003US6575243 Zonal isolation tool with same trip pressure test
06/10/2003US6575240 System and method for driving pipe
06/10/2003US6575238 Ball and plug dropping head
06/10/2003US6575235 Subterranean drainage pattern
06/10/2003CA2219513C Steam distribution and production of hydrocarbons in a horizontal well
06/10/2003CA2146743C Method of downhole cyclone oil/water separation and apparatus for the same
06/10/2003CA2131723C Well uplift system
06/06/2003CA2413559A1 Method of frac packing through existing gravel packed screens
06/05/2003WO2003046336A1 Downhole pump assembly and method of recovering well fluids
06/05/2003WO2003046335A1 Apparatus, methods and applications for expanding tubulars in a wellbore
06/05/2003WO2003046334A1 Expandable tubes with overlapping end portions
06/05/2003WO2002095178A3 Apparatus for suspending a pipe within a well casing
06/05/2003US20030102162 Internal oriented perforating system
06/05/2003US20030102130 In situ thermal recovery from a relatively permeable formation with quality control
06/05/2003US20030102128 Controlling hydraulic fracturing of subterranean fformations; popping agent
06/05/2003US20030102127 Downhole tubular patch, tubular expander and method
06/05/2003US20030102126 In situ thermal recovery from a relatively permeable formation with controlled production rate
06/05/2003US20030102125 In situ thermal processing of a relatively permeable formation in a reducing environment
06/05/2003US20030102124 In situ thermal processing of a blending agent from a relatively permeable formation
06/05/2003US20030102123 Electrochemical process for effecting redox-enhanced oil recovery
06/05/2003US20030102122 Severe dog leg swivel for tubing conveyed perforating
06/05/2003CA2468102A1 Downhole pump assembly and method of recovering well fluids
06/04/2003EP1316673A2 Method and system for accessing subterranean deposits from the surface
06/04/2003EP1315881A1 Method and system for perforating
06/04/2003EP1192331B1 Method of deploying an electrically driven fluid transducer system in a well
06/04/2003EP0920570B1 Subsea well
06/04/2003CN2554867Y Electric energy saving controller for beam-pumping unit
06/04/2003CN2554393Y Oil production electric submersible screw pump driven in well
06/04/2003CN2554348Y Head sheave type long-stroke beam-pumping unit
06/04/2003CN2554347Y Beam-type hydraulic beam-pumping unit
06/04/2003CN2554346Y Crank pin of beam-pumping unit
06/04/2003CN2554342Y Water well anti-relief valve
06/04/2003CN1421613A Screw pump made of polymer material and ceramic and its manufacture
06/04/2003CN1421612A Combined-stator single-screw pump
06/03/2003US6571875 Circulation tool for use in gravel packing of wellbores
06/03/2003US6571874 Forming gas flow passageways in structures, then pressing water and/or carbon dioxide into the bore holes at pressurization cycles
06/03/2003US6571872 Apparatus for completing wells in unconsolidated subterranean zones
06/03/2003US6571871 Expandable sand screen and method for installing same in a wellbore
06/03/2003US6571869 Downhole surge pressure reduction and filtering apparatus
06/03/2003US6571868 Well head lubricator assembly with polyurethane impact-absorbing spring
06/03/2003US6571867 Apparatus for increasing the effective diameter of a wellbore
06/03/2003US6571672 Method and apparatus for manufacturing an expandable slotted tube
05/2003
05/30/2003WO2003044318A1 Gas turbine for oil lifting
05/29/2003US20030100451 Providing heat heat sources to at least one portion of the formation; allowing the heat to transfer from the one or more heat sources to a selected section of the formation; controlling the heat; producing a mixture from the formation
05/29/2003US20030098605 In situ thermal recovery from a relatively permeable formation
05/29/2003US20030098181 Active controlled bottomhole pressure system & method
05/29/2003US20030098164 Expansion set liner hanger and method of setting same
05/29/2003US20030098162 Method of inserting a tubular member into a wellbore
05/29/2003US20030098159 Method and apparatus for unloading well tubing
05/29/2003US20030098158 Internally oriented perforating apparatus
05/29/2003US20030098157 Electromagnetic telemetry actuated firing system for well perforating gun
05/29/2003US20030098154 Apparatus for radially expanding tubular members
05/29/2003US20030098149 In situ thermal recovery from a relatively permeable formation using gas to increase mobility
05/28/2003EP1313665A1 Web-based system and method for evaluating oil and gas properties
05/28/2003EP1235972B1 Pipe expansion device
05/28/2003EP1159050B1 Three-phase separator
05/28/2003EP1141520B1 Method for removing condensables from a natural gas stream
05/28/2003EP1141519B1 Method for removing condensables from a natural gas stream, at a wellhead, downstream of the wellhead choke
05/28/2003CN2553243Y Heat-collecting steam boiler by burning coal-water slurry
05/28/2003CN2553190Y Gearing for drilling machine
05/28/2003CN2553168Y Theft-proof device for beam-pumping unit
05/28/2003CN2553143Y 单螺杆泵驱动装置 Single screw drives
05/28/2003CN2553111Y Automatic flow-regulating jet mixer
05/28/2003CN2553110Y Movable waterflooding vehicle
05/28/2003CN2553109Y Floor type balance box beam-pumping unit
05/28/2003CN2553108Y Dovetail beam-pumping unit
05/28/2003CN2553106Y Water nozzle valve for separate injection well of oil field
05/28/2003CN2553096Y Oil pipe anchoring and oil drainage device
05/28/2003CN1420972A Expandable joint connector
05/28/2003CN1420958A Improved method for drilling of oil wells
05/28/2003CN1420255A Method for increasing petroleum recovery ratio using three-compoonent composite displacement emulsification
05/28/2003CN1420254A Method for recovering uneven oli reservoir
05/28/2003CN1420253A Automatic pressure pump for water injection in oil field
05/28/2003CA2411819A1 Communicating with a tool
05/27/2003US6568478 Method and device to stabilize the production of oil wells
05/27/2003US6568477 Method and apparatus for conveying fluids, particularly useful with respect to oil wells
05/27/2003US6568475 Isolation container for a downhole electric pump
05/27/2003US6568474 Rigless one-trip perforation and gravel pack system and method
05/27/2003US6568473 Gas lift valve with central body venturi
05/27/2003US6568472 Method and apparatus for washing a borehole ahead of screen expansion
05/27/2003US6568471 Liner hanger
05/27/2003US6568469 Method and apparatus for connecting a main well bore and a lateral branch
05/27/2003CA2325777C Combined steam and vapor extraction process (savex) for in situ bitumen and heavy oil production
05/27/2003CA2251157C Process for sequentially applying sagd to adjacent sections of a petroleum reservoir
05/27/2003CA2062071C Control of flow and production of water and oil or bitumen from porous underground formations
05/22/2003WO2003042498A1 Optical position sensing for well control tools
05/22/2003WO2003042496A1 Method for diverting treatment fluid into a low permeability zone of a formation
05/22/2003WO2003042495A1 Plug setting apparatus and method
05/22/2003WO2003042494A1 Method and apparatus for borehole stabilisation
05/22/2003WO2003042489A2 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell
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