| Patents for E21B 21 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor (13,780) |
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| 03/05/2015 | WO2015030732A1 Encapsulated explosives for drilling wellbores |
| 03/05/2015 | US20150064034 Modular intake filter system, apparatus and method |
| 03/05/2015 | US20150060146 Reservoir activated emulsion breaking for lost circulation |
| 03/05/2015 | US20150060143 Remotely controlled apparatus for downhole applications and methods of operation |
| 03/05/2015 | US20150060139 Two-Port Percussion Mole |
| 03/05/2015 | US20150060040 Downhole Cutting Tool Having A Jetted Top Bushing |
| 03/05/2015 | US20150059858 Device and Method for Multi-Path Flow From Vertical Hydraulic Tank |
| 03/03/2015 | US8967730 Wethead seal design for continuous mining machine |
| 03/03/2015 | US8967298 Transmission of light through light absorbing medium |
| 03/03/2015 | US8967279 Reinforced shear components and methods of using same |
| 02/26/2015 | WO2015026713A1 Methods for servicing subterranean wells |
| 02/26/2015 | WO2015026692A1 Pressure actuated disintegration of bulk materials and oilfield related components |
| 02/26/2015 | WO2015026450A1 Passive in-flow control devices and methods for using same |
| 02/26/2015 | WO2015026358A1 Drilling fluid flow measurement in an open channel fluid conduit |
| 02/26/2015 | WO2015026332A1 Downhole drilling optimization collar with fiber optics |
| 02/26/2015 | WO2015026240A1 Riser restrictor device |
| 02/26/2015 | US20150053424 Fill up tool |
| 02/25/2015 | EP2840226A2 Signal operated tools for milling, drilling, and/or fishing operations |
| 02/25/2015 | EP2839261A1 Methods for predicting dynamic sag using viscometer/rheometer data |
| 02/24/2015 | US8960334 Differential pressure release sub |
| 02/24/2015 | CA2808080C Variable flow restrictor for use in a subterranean well |
| 02/24/2015 | CA2804400C Dual-flow valve and swivel |
| 02/24/2015 | CA2629289C Enhanced slurrification method |
| 02/23/2015 | CA2860408A1 Wired or ported transmission shaft and universal joints for downhole drilling motor |
| 02/19/2015 | WO2015024012A1 Separator and method of separation with a pressure differential device |
| 02/19/2015 | WO2015023763A1 Fluid treatment system |
| 02/19/2015 | WO2015023411A1 Non-stop driller manifold and methods |
| 02/19/2015 | WO2015023387A1 Dual purpose mud-gas separator and methods |
| 02/19/2015 | WO2015023300A1 Production packer-setting tool with electrical control line |
| 02/19/2015 | WO2015023283A1 System and method for changing proppant concentration |
| 02/19/2015 | WO2015023185A1 Real time mud monitoring |
| 02/19/2015 | WO2015022480A1 Water treatment |
| 02/19/2015 | US20150048037 Separator and method of separation with a pressure differential device |
| 02/19/2015 | US20150047906 Efficient and Eco-friendly Oil Drilling System and Method |
| 02/19/2015 | US20150047834 Non-stop driller manifold and methods |
| 02/18/2015 | EP2836675A1 Triggered heating of wellbore fluids by carbon nanomaterials |
| 02/18/2015 | EP2836667A2 Apparatus and method to remotely control fluid flow in tubular strings and wellbore annulus |
| 02/18/2015 | EP2836666A2 Method of handling a gas influx in a riser |
| 02/18/2015 | EP2836565A1 Drilling fluids with nano and granular particles and their use for wellbore strengthening |
| 02/17/2015 | US8957538 Apparatus for downhole power generation |
| 02/17/2015 | US8956543 Feeder with screen for shaker |
| 02/17/2015 | US8956532 Well water recirculating system |
| 02/17/2015 | US8955918 Method and apparatus for increasing the yield in a deposit |
| 02/17/2015 | US8955917 Method and apparatus for increasing the yield in a deposit |
| 02/17/2015 | US8955619 Managed pressure drilling |
| 02/17/2015 | US8955602 System and methods for continuous and near continuous drilling |
| 02/17/2015 | US8955543 Large bore auto-fill float equipment |
| 02/17/2015 | US8955430 Metering process and device for performing the process |
| 02/17/2015 | US8955371 High pressure fracture tester |
| 02/17/2015 | CA2722612C Signal operated tools for milling, drilling, and/or fishing operations |
| 02/17/2015 | CA2685074C Automated mud slowness estimation |
| 02/14/2015 | CA2859388A1 Floating gas trap system using agitation |
| 02/12/2015 | WO2015021241A1 Fluid injection filtration system |
| 02/12/2015 | US20150041220 Plural input mud-collecting manifold |
| 02/12/2015 | US20150041121 Outward venting of inflow tracer in production wells |
| 02/12/2015 | US20150040755 Dual Purpose Mud-Gas Separator and Methods |
| 02/11/2015 | EP2834547A2 Downhole actuator |
| 02/11/2015 | EP2834461A2 Drilling control and information system |
| 02/11/2015 | EP2834460A2 Drilling control system |
| 02/11/2015 | EP2834459A2 Drilling control and information system |
| 02/11/2015 | EP2834458A2 Drilling information system |
| 02/11/2015 | EP2834455A2 Wellbore information system |
| 02/11/2015 | EP2834445A2 Actuator for dual drill string valve and drill string valve configurations therefor |
| 02/11/2015 | EP2834444A2 Actuator for dual drill string valve and rotary drill string valve configuration therefor |
| 02/11/2015 | CN204152464U 一种带有泡沫灭火器的泥浆净化装置 A slurry of purification unit with foam fire extinguisher |
| 02/11/2015 | CN204152463U 用于评价固井冲洗液冲洗效率的设备 For evaluating the efficiency of washing fluid cementing equipment |
| 02/11/2015 | CN104343436A 一种通井洗井水泥胶结固井质量测井一体化装置及方法 One kind of flushing through well cementing quality cement bond logging integrated device and method |
| 02/11/2015 | CN104343403A 一种三合一泥浆清洁器 One kind of triple mud cleaner |
| 02/11/2015 | CN104343402A 用于机器的粉尘收集系统 For the dust collection system of the machine |
| 02/11/2015 | CN104343401A 一种除砂器 One kind Desanding |
| 02/11/2015 | CN104343388A 一种泥浆对注的水平定向穿越设备 One kind of horizontal directional drilling mud through the injection device |
| 02/10/2015 | US8954281 Wellbore fluid testing apparatus and methods |
| 02/10/2015 | US8950512 Methods and apparatus for reducing stick-slip |
| 02/10/2015 | US8950510 Drill cuttings conveyance systems |
| 02/10/2015 | US8950430 Internal blow out preventer |
| 02/10/2015 | CA2790957C Apparatus and method for separating solids from a solids laden drilling fluid |
| 02/10/2015 | CA2784248C Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications |
| 02/05/2015 | WO2015017526A1 Fluidic modulators and along string systems |
| 02/05/2015 | WO2015017522A1 Moveable element to create pressure signals in a fluidic modulator |
| 02/05/2015 | WO2015017512A1 Fluidic modulators |
| 02/05/2015 | WO2015017108A2 Casing filling tool |
| 02/05/2015 | WO2015016912A1 Mainbore clean out tool |
| 02/05/2015 | WO2015014685A1 Mud lift pump for dual drill string |
| 02/05/2015 | WO2015013743A1 Friction bolt assembly |
| 02/05/2015 | US20150034547 Diesel recovery system and method |
| 02/05/2015 | US20150034392 Dust collection system for a machine |
| 02/05/2015 | US20150034389 Water-based drilling fluid with tannin additive from c. coriaria |
| 02/05/2015 | US20150034302 Casing filling tool |
| 02/05/2015 | CA2857777A1 Hole-vac |
| 02/04/2015 | EP2832951A2 Top drive stand compensator with fill up tool |
| 02/04/2015 | CN204140009U 一种锚杆钻孔粉尘收集装置 One kind of anchor drilling dust collection device |
| 02/04/2015 | CN204140008U 潜孔钻机车载除尘装置 Submersible drilling rig onboard dust removal device |
| 02/04/2015 | CN204140007U 一种煤矿钻孔捕尘装置 One kind of drilling coal dust capture device |
| 02/04/2015 | CN204140006U 岩屑储存系统及具有该系统的半潜平台 Cuttings storage system and the system has a semi-submersible platform |
| 02/04/2015 | CN204140005U 油田钻井用反冲洗装置 Backwash oilfield drilling equipment |
| 02/04/2015 | CN204139961U 一种深度可测的岩石钻孔机 A deep rock drilling machine can be measured |
| 02/04/2015 | CN104331598A 一种气体钻井井筒内携岩状态快速判断方法 Within a wellbore gas drilling method to quickly determine the status of carrying rocks |
| 02/04/2015 | CN104329053A 集油收球加药一体化集成装置 Set oil futures closed ball Dosing one integrated device |
| 02/04/2015 | CN104329039A 连续循环阀 Continuous cycle valve |
| 02/04/2015 | CN104329038A 一种具备作业储层保护作用的油田油水井管柱清洗的方法 One kind of job with the protective effect of oil reservoir oil wells string cleaning methods |