| Patents for E21B 27 - Containers for collecting or depositing substances in boreholes or wells, e.g. bailers for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits (1,068) |
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| 03/05/2015 | WO2015030596A1 Petroleum well tracer release flow shunt chamber |
| 03/03/2015 | US8967690 Strap guide insert |
| 03/03/2015 | US8967241 Junk basket with self clean assembly and methods of using same |
| 02/24/2015 | US8960282 Centrifugal subterranean debris collector |
| 02/19/2015 | WO2014205601A9 Rotary excavating bucket drill |
| 02/12/2015 | WO2015020637A1 Method and apparatus for zonal isolation of subterranean formations using set-on-demand slurries |
| 02/11/2015 | CN204152496U 一种防卤水管道堵塞沉沙器 An anti-brine pipeline is clogged settling |
| 02/03/2015 | US8949029 Method for using tracer flowback for estimating influx volumes of fluids from different influx zones |
| 02/03/2015 | CA2785095C Hydrocarbon formation core protection and transportation apparatus |
| 01/29/2015 | WO2015010813A1 Well tool comprising a plugging device and a junk catching device |
| 01/29/2015 | US20150027696 Method of collecting sample using multi-packer and apparatus thereof |
| 01/22/2015 | US20150021096 Coring tools and methods for making coring tools and procuring core samples |
| 01/21/2015 | EP2825718A2 Tracer based flow measurement |
| 01/21/2015 | CN204113167U 一种煤层气井捞砂工具 One kind of coalbed methane wells bailing Tools |
| 01/20/2015 | US8936097 Method and an apparatus for downhole injecting one or more treatment fluids |
| 01/14/2015 | CN104278963A 随钻巨型内捞筒 Drilling in the giant tube fishing |
| 01/07/2015 | CN204082068U 油田作业打捞清砂装置 Oilfield operations equipment salvage sand |
| 01/07/2015 | CN204082063U 旋挖钻机的旋挖捞砂斗压杆结构 Rotary drilling rig rotary drilling bailing bucket strut structure |
| 01/07/2015 | CN204082022U 具有捞砂功能的俯角钻孔钻杆 Depression drilling drill has bailing function |
| 01/07/2015 | CN104265156A 高原山地基坑开挖施工设备的掏挖提土装置 Plateaus excavation construction equipment digging mention soil device |
| 01/01/2015 | US20150000896 Debris Chamber with Helical Flow Path for Enhanced Subterranean Debris Removal |
| 12/24/2014 | CN204040967U 采油抽砂作业装置 Oil Chousha working device |
| 12/24/2014 | CN204040910U 带背凸圆弧面切削齿 Bring back the convex arc face cutters |
| 12/17/2014 | CN204024553U 采油通井捞砂装置 Oil through wells bailing device |
| 12/17/2014 | CN204024552U 采油井作业捞砂装置 Production wells job bailing device |
| 12/16/2014 | US8910711 Fluid container reloading tool |
| 12/10/2014 | CN204002664U 侧吸沉砂器 Grit is the suction side |
| 11/27/2014 | US20140345860 Downhole sample module with an accessible captured volume adjacent a sample bottle |
| 11/25/2014 | US8893777 Liquid aeration plunger with chemical chamber |
| 11/13/2014 | US20140332281 Fluid sampling tool with deployable fluid cartidges |
| 11/13/2014 | US20140332269 Delivery method and system |
| 11/11/2014 | US8881819 Tubular cutting with a sealed annular space and fluid flow for cuttings removal |
| 11/11/2014 | US8881818 Tubular cutting with debris filtration |
| 11/06/2014 | US20140326510 Wireline drilling system |
| 11/06/2014 | US20140326465 Hybrid dump bailer and method of use |
| 10/30/2014 | US20140318765 Mechanically Locked Debris Barrier |
| 10/23/2014 | US20140311738 Fluid container reloading tool |
| 10/21/2014 | US8863828 Stripper device with retrieval mounting portion and method of use |
| 10/14/2014 | US8857517 Wellbore cleanout tool |
| 10/08/2014 | EP2785967A1 A cleaning tool and a method for treating an inner surface of a casing |
| 09/30/2014 | US8844619 Debris chamber with helical flow path for enhanced subterranean debris removal |
| 09/30/2014 | US8844615 Oilfield material delivery mechanism |
| 09/24/2014 | EP2780536A1 Equalized hydrostatic bailer |
| 09/18/2014 | US20140262522 Axially separating drill bucket |
| 09/18/2014 | US20140262299 Equalized hydrostatic bailer |
| 09/02/2014 | US8820401 Oil-pressure type fixed piston sampler |
| 09/02/2014 | CA2769479C Wellbore cleanout tool |
| 08/28/2014 | US20140238530 Apparatus and method for containing fluid or gas released from a pipe |
| 08/28/2014 | DE202014005348U1 Eine Schaufel der Bohrmaschine One blade of the drill |
| 08/26/2014 | US8813872 Methods and apparatus for download transfer of drill cuttings |
| 08/26/2014 | US8813841 Hybrid dump bailer and method of use |
| 08/19/2014 | US8807212 Pressure measurement in highly deviated wells |
| 08/19/2014 | US8807211 Tool for shutting off openings or leaks in a well bore |
| 08/07/2014 | US20140216719 Junk Basket With Self Clean Assembly And Methods Of Using Same |
| 08/06/2014 | CN103975117A 改进的钢缆式钻井系统 Improved cable drilling system |
| 08/06/2014 | CN103967419A 钻斗和旋挖钻机 Bucket and auger drill rig |
| 08/06/2014 | CN102777125B 可监控电液控制桩基础扩底装置 Monitors electro-hydraulic control unit belled pile foundation |
| 07/30/2014 | CN203742562U 一种多功能采油车 A multifunctional car oil |
| 07/30/2014 | CN103953305A 减压井落物抓取装置 Relief wells litter gripping device |
| 07/24/2014 | US20140202699 System and Method for Removing Debris from a Downhole Wellbore |
| 07/23/2014 | CN203729869U 气动潜孔锤排渣装置 DTH slagging device |
| 07/23/2014 | CN103946477A 用于处理套管的内表面的清洁工具和方法 The inner surface of the cleaning tools and methods for handling the casing |
| 07/23/2014 | CN103939061A 螺旋式可拆卸割缝斜丝滤砂管 Removable slotted spiral ramp silk sand filter |
| 07/22/2014 | CA2782660C Wellbore knock-out chamber and related methods of use |
| 07/17/2014 | WO2014109643A1 Petroleum well drill- or coiled tubing string mounted fishing tool |
| 07/15/2014 | US8776885 Sand control device cleaning system |
| 07/15/2014 | CA2760950C Dual action jet bushing |
| 07/09/2014 | CN203701991U 钻斗和旋挖钻机 Drill bucket and rotary drilling rig |
| 06/26/2014 | US20140174758 Packer Including Support Member With Rigid Segments |
| 06/26/2014 | US20140174720 Dump Bailer |
| 06/18/2014 | CN103867153A Sand setting cylinder of helicoid hydraulic motor |
| 06/17/2014 | US8752620 Systems and methods for single-phase fluid sampling |
| 06/12/2014 | US20140158358 Methods and Systems of Down-Hole Reagent Processing and Deployment |
| 06/11/2014 | EP2740882A1 Drilling device and method for producing a borehole |
| 06/11/2014 | CN203640647U 一种抽油泵油管沉砂筒 One kind of grit cylinder pump tubing |
| 06/11/2014 | CN102536145B Sand setting assembly for screw drilling tool |
| 06/05/2014 | WO2014084807A1 Wellbore bailer |
| 06/05/2014 | US20140151126 Drilling device and method for producing a borehole |
| 06/04/2014 | CN102287152B Rotating spray sand cleaning method |
| 05/14/2014 | CN103790513A 气动潜孔锤排渣装置 DTH slagging device |
| 05/14/2014 | CN102425372B 振动钻进式冲挖钻机 Vibration punching and drilling rig drilling |
| 05/08/2014 | WO2013135861A3 Tracer based flow measurement |
| 05/07/2014 | CN203584349U 活塞式捞渣筒 Slag cylinder piston |
| 04/24/2014 | US20140110102 Passive downhole chemical release packages |
| 04/23/2014 | CN203559884U Petroleum screen pipe |
| 04/23/2014 | CN203559883U Pre-filter type oil screen pipe |
| 04/23/2014 | CN103748313A Drilling waste treatment |
| 04/16/2014 | CN102312660B Hole cleaning drilling tool |
| 04/09/2014 | CN203531814U Slurry removal device for bored pile |
| 04/03/2014 | WO2014051588A1 Powered wellbore bailer |
| 04/02/2014 | CN203515418U Device for taking rock dust at bottom of deep hole |
| 04/02/2014 | CN103696717A Automatic underground sand bailing device and sand bailing process thereof |
| 04/02/2014 | CN103696716A Deep hole bottom powder fishing device |
| 04/01/2014 | US8684086 Downhole mixing tool |
| 03/20/2014 | WO2014042844A1 Fluid deployment system for drilling and completion fluids |
| 03/20/2014 | WO2014040123A1 An improved core tray |
| 03/13/2014 | WO2013079935A3 Improved wireline drilling system |
| 03/12/2014 | CN203476268U Oil-water well operation sand fishing device |
| 03/11/2014 | US8668005 Dump bailer |
| 02/27/2014 | WO2014031006A1 Device for collection of particulate material in a conduit |