| 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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| 09/05/2007 | EP1546507B1 Acid-coated sand for gravel pack and filter cake clean-up |
| 09/05/2007 | EP1149312B1 High-power well logging method and apparatus |
| 09/05/2007 | CN200943578Y Multiple segment plunger self-rotating oil-well pump |
| 09/05/2007 | CN200943576Y Long plunger spiral sand-proof oil-well pump |
| 09/05/2007 | CN200943574Y Large power submersible linear permanent-magnet step motor plunger pump |
| 09/05/2007 | CN200943573Y Reciprocating type submersible electric pump oil extraction device |
| 09/05/2007 | CN200943481Y Oil well production pipe column for controlling propping agent backflow of hydraulic fractures well |
| 09/05/2007 | CN200943480Y Compound injection device |
| 09/05/2007 | CN200943479Y Skid-mounted type small diameter continuous tube down-hole injection device for agent or gas |
| 09/05/2007 | CN200943478Y Oil gas automatic device in casing |
| 09/05/2007 | CN200943477Y Lower hanging type composite synergistic perforator |
| 09/05/2007 | CN200943476Y Stainless steel board net sand-filtering pipe for petroleum |
| 09/05/2007 | CN200943475Y Downhole pipe string for layered oil production |
| 09/05/2007 | CN200943474Y Pulley block drive type pumping unit |
| 09/05/2007 | CN200943473Y Pulley block type energy-saving pumping unit dedicated for oil production |
| 09/05/2007 | CN200943472Y Overflow recovery device for oil well operation |
| 09/05/2007 | CN200943471Y Lift-regulating device of oil pumping unit |
| 09/05/2007 | CN200943457Y Self-adaptive hydraulic classification expanding tool for sand control screen |
| 09/05/2007 | CN200943456Y Highly effective gas cut drilling fluid vacuum degasifier |
| 09/05/2007 | CN200942507Y Tool for adjusting balance of pumping unit |
| 09/05/2007 | CN101031824A Method and system for determining hydrocarbon properties |
| 09/05/2007 | CN101029563A Method of producing safety gas for oil-gas and well-gas lift |
| 09/05/2007 | CN101029562A Directed-balanced economical pumping unit |
| 09/05/2007 | CN101029561A Front reversal beam pumping unit |
| 09/05/2007 | CN100335798C Superhigh pressure low-speed feeding controlling system |
| 09/05/2007 | CN100335794C Clean hole screw rod pump against sand block |
| 09/05/2007 | CN100335746C Method for disposing underground hydrocarbon reservoir |
| 09/05/2007 | CN100335745C A system and a method for prediction and treatment of slugs being formed in a flow line or wellbore tubing |
| 09/05/2007 | CN100335744C Method of expanding a tubular element in a wellbore |
| 09/05/2007 | CN100335743C V-shape precision micro-seam self-cleaning sandproof sieve tube |
| 09/05/2007 | CN100335742C Shear-sensitive plugging fluid for plugging and a method for plugging a subterranean formation zone |
| 09/04/2007 | US7265079 Self-destructing filter cake |
| 09/04/2007 | US7264653 Methods for inhibiting hydrate blockage in oil and gas pipelines using simple quaternary ammonium and phosphonium compounds |
| 09/04/2007 | US7264067 Method of drilling and completing multiple wellbores inside a single caisson |
| 09/04/2007 | US7264057 Subsea intervention |
| 09/04/2007 | US7264056 System and method for the mitigation of paraffin wax deposition from crude oil by using ultrasonic waves |
| 09/04/2007 | US7264054 Fluids comprising zirconium isopropylamine crosslinking agents and associated methods |
| 09/04/2007 | US7264052 Methods and compositions for consolidating proppant in fractures |
| 09/04/2007 | US7264051 Providing partitioned, coated particulates that comprise particulates, an adhesive, and a partitioning agent, and wherein adhesive comprises an aqueous tackifying agent or a silyl modified polyamide; slurrying particulates in a treatment fluid, placing slurry into subterranean formation |
| 09/04/2007 | US7264049 In-situ method of coal gasification |
| 09/04/2007 | US7264048 Slot cavity |
| 09/04/2007 | US7264047 Annular isolators for expandable tubulars in wellbores |
| 09/04/2007 | CA2458504C Hydrocarbon recovery |
| 09/04/2007 | CA2447928C Proppants and their manufacture |
| 09/04/2007 | CA2447770C Shale hydration inhibition agent and method of use |
| 09/04/2007 | CA2413531C Method and apparatus of protecting explosives |
| 09/03/2007 | CA2538936A1 Lpg mix frac |
| 08/30/2007 | WO2007098370A2 Kerogen extraction from subterranean oil shale resources |
| 08/30/2007 | WO2007098100A2 Method for producing viscous hydrocarbon using steam and carbon dioxide |
| 08/30/2007 | WO2007096660A1 Method and apparatus for centralized proppant storage and metering |
| 08/30/2007 | WO2007096316A1 In-line separator |
| 08/30/2007 | WO2007095764A1 Diluent-enhanced in-situ combustion hydrocarbon recovery process |
| 08/30/2007 | WO2007095763A1 Oilfield enhanced in situ combustion process |
| 08/30/2007 | WO2007077139A3 A process for enhanced oil recovery in combination with the production of hydrocarbons from synthesis gas |
| 08/30/2007 | US20070199720 Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipe |
| 08/30/2007 | US20070199719 Apparatus and methods for radially expanding a tubular member |
| 08/30/2007 | US20070199717 Method and apparatus for pumping liquid from wells |
| 08/30/2007 | US20070199715 Subsea well intervention |
| 08/30/2007 | US20070199714 Closed loop multiphase underbalanced drilling process |
| 08/30/2007 | US20070199713 Initiation and propagation control of vertical hydraulic fractures in unconsolidated and weakly cemented sediments |
| 08/30/2007 | US20070199712 Enhanced hydrocarbon recovery by steam injection of oil sand formations |
| 08/30/2007 | US20070199711 Enhanced hydrocarbon recovery by vaporizing solvents in oil sand formations |
| 08/30/2007 | US20070199710 Enhanced hydrocarbon recovery by convective heating of oil sand formations |
| 08/30/2007 | US20070199708 Hydraulic fracture initiation and propagation control in unconsolidated and weakly cemented sediments |
| 08/30/2007 | US20070199707 Enhanced Hydrocarbon Recovery By Convective Heating of Oil Sand Formations |
| 08/30/2007 | US20070199706 Enhanced hydrocarbon recovery by convective heating of oil sand formations |
| 08/30/2007 | US20070199705 Enhanced hydrocarbon recovery by vaporizing solvents in oil sand formations |
| 08/30/2007 | US20070199704 Hydraulic Fracture Initiation and Propagation Control in Unconsolidated and Weakly Cemented Sediments |
| 08/30/2007 | US20070199702 Enhanced Hydrocarbon Recovery By In Situ Combustion of Oil Sand Formations |
| 08/30/2007 | US20070199701 Ehanced hydrocarbon recovery by in situ combustion of oil sand formations |
| 08/30/2007 | US20070199700 Enhanced hydrocarbon recovery by in situ combustion of oil sand formations |
| 08/30/2007 | US20070199699 Enhanced Hydrocarbon Recovery By Vaporizing Solvents in Oil Sand Formations |
| 08/30/2007 | US20070199698 Enhanced Hydrocarbon Recovery By Steam Injection of Oil Sand Formations |
| 08/30/2007 | US20070199697 Enhanced hydrocarbon recovery by steam injection of oil sand formations |
| 08/30/2007 | US20070199696 Real-Time Production-Side Monitoring and Control for Heat Assisted Fluid Recovery Applications |
| 08/30/2007 | US20070199695 Hydraulic Fracture Initiation and Propagation Control in Unconsolidated and Weakly Cemented Sediments |
| 08/30/2007 | CA2642523A1 Kerogen extraction from subterranean oil shale resources |
| 08/30/2007 | CA2638066A1 In-line separator |
| 08/29/2007 | EP1825102A2 Unsintered mesh sand control screen |
| 08/29/2007 | EP1825101A1 Electroacoustic method and device for stimulation of mass transfer processes for enhanced well recovery |
| 08/29/2007 | CN200941574Y Dynamo bearing seat of mobile pumping unit |
| 08/29/2007 | CN200940563Y Oil output one-way valve of oil pump |
| 08/29/2007 | CN200940560Y Oriented reset type oil pumping valve |
| 08/29/2007 | CN200940559Y Lateral flow type deep production oil pump |
| 08/29/2007 | CN200940558Y Split pumping and mixed output oil pump |
| 08/29/2007 | CN200940557Y Forced valve type bias oil intaking thickening pump |
| 08/29/2007 | CN200940476Y Water injection ball base |
| 08/29/2007 | CN200940475Y Slide pin type automatic abdication mule head device of oil pumping unit |
| 08/29/2007 | CN200940474Y Three pumping-in-one down stroke liquid drain oil pumping machine |
| 08/29/2007 | CN200940473Y Piston and plunger type coal layer gas negative pumping device |
| 08/29/2007 | CN200940460Y Drilling pressure driven type sand-proof sieve tube expansion tool |
| 08/29/2007 | CN200940457Y Punching hole releasing device |
| 08/29/2007 | CN101025154A Elastic-sealing-valve oil pump |
| 08/29/2007 | CN101025153A Cable-free oil submersible electric pump |
| 08/29/2007 | CN101025082A Downhole gas separator |
| 08/29/2007 | CN101025081A Constant-flow sand-proof anti-blocked eccentric water flow regulator |
| 08/29/2007 | CN101025080A Method for realizing high-water containing same-well injection-production by multi-cup equi-flow type down-hole oil-water separator |
| 08/29/2007 | CN101025078A High-sealing corrosion-resisting compression type packer |
| 08/29/2007 | CN100334323C Water-blending process device |
| 08/29/2007 | CN100334322C Petroleum oil perforation gun |