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)
10/2014
10/02/2014WO2014159097A1 Methods for treatment of a subterranean formation
10/02/2014US20140291031 Drillstring Valve
10/01/2014EP2783067A1 Releasing activators during wellbore operations
09/2014
09/30/2014US8844653 Continuous circulating sub for drill strings
09/30/2014US8844652 Interlocking low profile rotating control device
09/30/2014US8844650 Drilling mud closed loop system, method, process and apparatus for reclamation of drilling mud
09/30/2014US8844634 Circulation sub with indexing mechanism
09/30/2014US8844622 Wellbore cleaning method and apparatus
09/30/2014CA2738506C Low headroom confined space geoexchange drilling system and method
09/30/2014CA2658791C Core annular flow of heavy crude oils in transportation pipelines and production wellbores
09/25/2014WO2014153488A1 Valve with integral piston
09/25/2014WO2014151724A2 Riser gas handling system
09/25/2014WO2014151271A1 Encapsulated gas for drilling and completion fluids
09/25/2014WO2014149065A1 Clog free high volume drill cutting and waste processing offloading system
09/25/2014WO2014149049A1 Tubing pressure operated downhole fluid flow control system
09/25/2014US20140284112 Mud saver valve and method of operation of same
09/23/2014US8840298 Centrifugal mixing system
09/23/2014US8839885 Latching configuration for a microtunneling apparatus
09/23/2014US8839859 Water absorbing polymers for treatment of brines and water-based drilling fluids
09/23/2014CA2749580C Autochoke system
09/23/2014CA2729323C Apparatus and method for data transmission from a rotating control device
09/23/2014CA2617498C Apparatus and methods for creation of down hole annular barrier
09/18/2014WO2014143804A2 Hydraulic cushion
09/18/2014WO2014143715A2 Decompression to fill pressure
09/18/2014WO2014143003A1 Non-electronic air chamber pressure sensor
09/18/2014WO2014142846A1 Diverting flow in a drilling fluid circulation system to regulate drilling fluid pressure
09/18/2014US20140273168 Oleaginous Microbial Lubricants
09/18/2014US20140265523 Aerated rock dust
09/18/2014US20140262531 Hydraulic cushion
09/18/2014US20140262516 Method and apparatus for measuring drilling fluid properties
09/18/2014US20140262510 Closed loop drilling fluids circulation and management system
09/18/2014US20140262506 Decompression to fill pressure
09/18/2014US20140262505 Automatic pump chamber control adjustment
09/18/2014US20140262395 Drilling apparatus
09/18/2014US20140262326 Purging fluid circuits in wellbore control devices
09/18/2014US20140262315 Drilling Mud Recovery System
09/18/2014US20140262281 Methods of Designing a Drilling Fluid Having Suspendable Loss Circulation Material
09/18/2014US20140260993 Apparatus and method for gas-liquid separation
09/17/2014EP2776656A1 Apparatus and process for drilling a borehole in a subterranean formation
09/16/2014US8834726 Treatment of gas well hydrofracture wastewaters
09/16/2014US8834012 Electric or natural gas fired small footprint fracturing fluid blending and pumping equipment
09/16/2014US8833490 Self-circulating drill bit
09/16/2014US8833489 Method and system for transferring signals through a drill pipe system
09/16/2014US8833488 Automatic standpipe pressure control in drilling
09/16/2014US8833471 Fill up tool
09/16/2014US8833468 Circulation control valve and associated method
09/16/2014US8833464 Method and system for containing uncontrolled flow of reservoir fluids into the environment
09/16/2014CA2728166C Copolymer for shale stabilization and method of use
09/16/2014CA2626925C Device and method for feeding particles into a stream
09/15/2014CA2845846A1 Self-undercut expansion anchor insertion system
09/12/2014WO2014138714A1 Vector maximizing screen
09/12/2014WO2014138019A1 Actuation assemblies, hydraulically actuated tools for use in subterranean boreholes including actuation assemblies and related methods
09/12/2014WO2014137335A1 Bonded slickline and methods of use
09/12/2014WO2014135873A2 Valve assembly
09/12/2014WO2014134726A1 Method for treatment of oil and sand cuttings
09/11/2014US20140251693 Device and method for controlling return flow from a bore hole
09/11/2014US20140251691 Method and Apparatus for Improving the Efficiency of a Positive Displacement Motor for Drilling and Oil or Gas Well
09/09/2014US8826992 Circulation and rotation tool
09/09/2014US8826973 Method and system for advancement of a borehole using a high power laser
09/09/2014US8826832 Offshore cargo rack for use in transferring palletized loads between a marine vessel and an offshore platform
09/09/2014CA2568053C Ball-activated mechanism for controlling the operation of a downhole tool
09/07/2014CA2807700A1 Drilling fluid composition
09/04/2014US20140246243 Device and method for pressure regulation of a well
09/04/2014US20140246054 Use of cuttings vessel for tank cleaning
09/03/2014EP2771532A2 Lubricant supply of a bore for laying a pipeline
09/02/2014US8822385 Nanoemulsions
09/02/2014US8820438 Method for cleaning oil from drill cuttings
09/02/2014US8820434 Apparatus for advancing a wellbore using high power laser energy
09/02/2014US8820407 Flow diverter ring for reducing wear in mud saver valves
09/02/2014US8820405 Segregating flowable materials in a well
09/02/2014CA2769479C Wellbore cleanout tool
08/2014
08/28/2014WO2014130622A1 Apparatus and method for separating and weighing cuttings received from a wellbore while drilling
08/28/2014WO2014130323A1 Method of enhancing drilling fluid performance
08/28/2014WO2014130293A1 Methods and compositions for treating subterranean formations with swellable lost circulation materials
08/28/2014WO2014130279A1 Methods and compositions for treating subterranean formations with interlocking lost circulation materials
08/28/2014WO2014127477A1 Process and apparatus for treating drilling fluid
08/28/2014WO2014035901A3 Motor and rotor catch assembly
08/28/2014WO2014011812A3 Multi-cycle circulating tool
08/28/2014WO2013184866A3 Flow control system
08/28/2014WO2013120475A3 Device for dry drilling using drilling debris extraction
08/28/2014US20140238861 System, Method and Apparatus for Treating Mining Byproducts
08/28/2014US20140238751 Auxiliary equipment for use with drilling apparatus
08/28/2014US20140238668 Testing while fracturing while drilling
08/27/2014EP2770160A2 Signal operated isolation valve
08/26/2014US8813875 Drilling rig with continuous microwave particulate treatment system
08/26/2014US8813872 Methods and apparatus for download transfer of drill cuttings
08/26/2014US8813870 Arrangement and a method for monitoring an air flow in a drill rig
08/26/2014US8813840 Method and system for accessing subterranean deposits from the surface and tools therefor
08/21/2014WO2014126659A1 Distributed acoustic monitoring via time-sheared incoherent frequency domain reflectometry
08/21/2014WO2014008095A9 Method and system for measuring and calculating a modified equivalent circulating density (ecdm) in drilling operations
08/21/2014US20140231146 Method of enhancing drilling fluid performance
08/21/2014US20140231145 Inorganic fullerene-like particles and inorganic tubular-like particles in fluids and lubricants and applications to subterranean drilling
08/21/2014US20140231086 Methods and compositions for treating subterranean formations with swellable lost circulation materials
08/21/2014US20140231082 Methods and compositions for treating subterranean formations with interlocking lost circulation materials
08/20/2014EP2767350A1 Apparatus for sieving and fluid separation and a method of using same
08/20/2014EP2766563A1 Alignment of bop stack to facilitate use of a rotating control device
08/20/2014EP2766559A1 Horizontal directional drilling system
08/19/2014US8807244 Method and apparatus for strengthening a wellbore
08/19/2014US8807222 Process for reducing the pressure for injecting a polymer solution into an oil well without shear on said solution
08/19/2014CA2756624C Top drive for casing connection
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