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 21 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
Patents for E21B 21 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor (13,780)
06/2010
06/09/2010CN101725327A Intelligent monitoring method aiming at well drilling overflowing and leakage
06/08/2010US7730966 High density slurry
06/08/2010CA2633627C Method for completing a well using increased fluid temperature
06/03/2010WO2010060134A1 Drill string
06/03/2010US20100133008 Monitor and control of directional drilling operations and simulations
06/03/2010US20100132942 Hydrocarbon reservoir treatment method with hydrocarbons
06/02/2010EP2192261A1 Method for anchoring an attachment element
06/02/2010EP2191098A1 Automated borehole image interpretation
06/02/2010CN201496031U Water tap
06/02/2010CN201496014U Downhole safety monitoring system for underbalance drilling compound logging
06/02/2010CN201496013U Pile foundation hole cleaning device
06/02/2010CN201496012U Sliding core shaft channel commutator
06/02/2010CN201495993U Boring rod filter with protective cover
06/02/2010CN101718178A Method for continuously washing coal ash under coal bed methane well in bride type without causing pollution
06/01/2010US7726418 Method and apparatus for adding a tubular to drill string with diverter
06/01/2010US7726417 Water collecting device for core drilling device
06/01/2010CA2560461C Modular design for downhole ecd-management devices and related methods
06/01/2010CA2419155C A screen assembly for a vibratory separator
06/01/2010CA2414071C Well maintenance equipment and procedure
06/01/2010CA2371171C Screen assembly, vibratory separator and method of screening
05/2010
05/27/2010WO2010060092A2 Methods and apparatuses for mixing drilling fluids
05/27/2010WO2010059475A2 Method and facility for treating waste drilling mud
05/27/2010WO2010059062A1 A method and apparatus for controlling the flow of fluid in oil and/or gas production
05/27/2010DE102008056262A1 Drilling goods e.g. drilling cuttings, extracting device for use during producing and filling boreholes for forming casting pit, has container, where opening is formed at upper side of container and permits penetration of drilling rod
05/27/2010CA2744046A1 Methods and apparatuses for mixing drilling fluids
05/27/2010CA2743612A1 Method and facility for treating waste drilling mud
05/26/2010EP2188490A1 Reclamation of halide-contaminated formate brines
05/26/2010EP2188486A1 Switchable circulating tool
05/26/2010CN201486491U Device for configuring and filling drilling fluid
05/26/2010CN1708630B Well completion system and method and method for producing hydrocarbon
05/26/2010CN1703566B Cement through side pocket mandrel
05/25/2010US7723271 coating outside surface of pipe with an adhesive thermoplastic resin, running the coated pipe into the wellbore, and causing the temperature of wellbore to increase to a temperature greater than a melting temperature of adhesive thermoplastic resin
05/25/2010US7721822 Control systems and methods for real-time downhole pressure management (ECD control)
05/20/2010WO2010054476A1 Optimization of the liquid injected component for multiphase drilling fluid solutions
05/20/2010WO2010039042A3 Down hole valve device
05/19/2010EP2186994A2 Drilling device and drilling method
05/19/2010EP2185784A2 Return line mounted pump for riserless mud return system
05/19/2010EP2185299A1 Method for removing oil from oil-contaminated material
05/19/2010EP2185276A2 Chemical treatment of cuttings for re-injection into subterranean formations
05/19/2010CN201474679U Wellhead constant-flow filter
05/19/2010CN201474638U Defoaming device for foam drilling machine
05/19/2010CN201474637U Mine drilling orifice dust catcher
05/19/2010CN101711273A Well service compositions for consolidation of particulates in subterranean coal seams
05/19/2010CN101709629A Reverse circulation aerodynamic cavitation method for coalbed methane well and equipment
05/19/2010CN101109275B Conveying system for drilling fluids
05/18/2010US7718581 Method using composition to reduce cutting head wear
05/18/2010US7717177 Energized fluid for generating self-cleaning filter cake
05/18/2010CA2517990C Methods and apparatus for handling and drilling with tubulars or casing
05/14/2010WO2010053904A2 Non-aqueous breaker fluids and methods of use thereof
05/13/2010US20100116552 Methods and apparatus for download transfer of drill cuttings
05/12/2010EP1999225B1 Methods of treating wellbores with recyclable fluids
05/12/2010CN201460776U Power swivel of petroleum drilling machine
05/12/2010CN201460775U Hydraulic power water tap of oil rig directly driven by adopting radial plunger motor
05/12/2010CN201460774U Drilling fluid oscillating screen with novel splash proofing device
05/12/2010CN201460773U Vibrating screen with anti-patting and anti-vibration filler strip
05/12/2010CN201460772U Self-sealing sand-flushing device
05/12/2010CN201460748U Anti-clogging cover for oil bit port
05/12/2010CN1576848B System for degassing muds and for analysing the gases contained in the muds
05/12/2010CN101705798A Vortex sand washing device
05/12/2010CN101092869B Inverse circular sand washing adapter connector in rotary type of twin pipe
05/11/2010US7712551 Vacuum feed supply system for drilling fluid additives
05/11/2010US7712536 Filtercake removal
05/11/2010US7712523 Top drive casing system
05/11/2010CA2406784C Method of increasing the low shear rate viscosity and shear thinning index of divalent cation-containing fluids and the fluids obtained thereby
05/11/2010CA2382668C Fluid driven mud pump
05/06/2010WO2010051208A2 Reduced waste cleaning methods for oil well related systems
05/06/2010WO2010048718A1 System and method for drying drill cuttings
05/06/2010WO2010031052A3 Method of determining borehole conditions from distributed measurement data
05/06/2010WO2009120090A3 A collection device and method of using same
05/06/2010WO2009101289A3 Determining a heat profile of the drilling fluid in a well during the course of drilling
05/06/2010US20100108309 Downhole Fluid Injection Dispersion Device
05/06/2010CA2741955A1 System and method for drying drill cuttings
05/05/2010CN201448077U Two-stage sand setting pool
05/05/2010CN201448076U Draw tube for removing water and sediment in hole
05/05/2010CA2643251A1 Hydrocarbon fluid compositions and methods for using same
05/04/2010US7709420 Organophilic clays and methods for the preparation and use thereof
05/04/2010CA2515353C Wellbore treatment fluid selection interactive computer system
04/2010
04/29/2010WO2010046653A2 Drill pipe
04/29/2010WO2010045691A1 Flow diverter assembly
04/29/2010US20100101798 Downhole systems and methods for deliquifaction of a wellbore
04/29/2010CA2741487A1 Drill pipe
04/28/2010EP2179127A1 Sealing arrangement, and corresponding method
04/28/2010EP2179124A2 Continuous flow drilling systems and methods
04/28/2010EP2179123A2 Method and device for cleaning and sealing a well
04/28/2010EP2179000A1 Drilling fluid additive for reducing lost circulation in a drilling operation
04/28/2010CN201443321U Oil-water well sand wash reversing packer
04/28/2010CN201443320U Drilling fluid vacuum degassing device
04/28/2010CN201443319U Automatic hydraulic pressure regulation device for drill bit of ground anchor machine
04/27/2010US7703552 Water treatment pad for core drill
04/27/2010US7703513 Wax barrier for use with in situ processes for treating formations
04/27/2010CA2581682C Apparatus and method for moving drilled cuttings
04/27/2010CA2502548C Process for the cleaning of oil and gas wellbores
04/22/2010WO2010045090A2 Treatment of recovered wellbore fluids
04/22/2010WO2010045064A1 Mud pump modules with surge dampeners
04/22/2010WO2010044027A2 Downhole application for a backpressure valve
04/22/2010WO2010043757A1 Method and drilling apparatus for down-the-hole drilling
04/22/2010WO2010018356A3 Fluid supply system
04/22/2010US20100096190 Drill pipe
04/22/2010US20100096132 Methods and Devices for Forming a Wellbore with Casing
04/22/2010DE102008049510A1 Device for sinking end diameter proximity vertical and slanting bores in sandy soil, has washing-up liquid line extending in driven drilling rod with reversal coil head, where opening diameter of rod corresponds to inner diameter
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