| 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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| 02/12/2013 | CA2785095A1 Hydrocarbon formation core protection and transportation apparatus |
| 02/06/2013 | CN102913164A Sand bailing pump |
| 01/31/2013 | US20130025937 Systems and Methods for Continuous and Near Continuous Drilling |
| 01/31/2013 | US20130025865 Wellbore knock-out chamber and related methods of use |
| 01/31/2013 | US20130025854 Method and system for sampling multi-phase fluid at a production wellsite |
| 01/30/2013 | CN102900391A Drilling bucket and rotary drilling rig applying drilling bucket |
| 01/29/2013 | US8360751 Discharge pressure actuated pump |
| 01/24/2013 | WO2012149345A3 Drilling waste treatment |
| 01/24/2013 | US20130020077 Apparatus and method for improved fluid sampling |
| 01/17/2013 | US20130014994 Systems and methods of a sample bottle assembly |
| 01/16/2013 | CN202673215U Sand pump pipe string |
| 01/10/2013 | WO2011134636A3 Drilling or extraction pipe string |
| 01/09/2013 | CN202659192U Unlocking mechanism for rotating drill bailing bucket small bucket |
| 01/09/2013 | CN202659191U Unlocking mechanism for large-caliber bucket of bailing bucket of rotary drilling rig |
| 01/09/2013 | CN202659190U Clean-out drill |
| 12/27/2012 | WO2012178041A2 Fluid migration shut-off |
| 12/27/2012 | WO2012148578A3 Centrifugal subterranean debris collector |
| 12/27/2012 | US20120325468 Fluid migration shut-off |
| 12/19/2012 | CN202611640U Oil well scale sinking device |
| 12/19/2012 | CN202611592U Broaching drilling tool and rotary drilling machine thereof |
| 12/19/2012 | CN102828713A Slag fishing cylinder |
| 12/13/2012 | WO2012149345A8 Drilling waste treatment |
| 12/12/2012 | CN202596631U Oil well setting sand collecting device |
| 12/12/2012 | CN202596630U Sand-settling assembly for screw drilling tool |
| 12/12/2012 | CN202596629U Composite magnetic-bar-type grit barrel |
| 12/12/2012 | CN202596570U Base column pile dry-type integrated soil taking apparatus |
| 12/12/2012 | CN102817566A Horizontal well sand bailing device |
| 11/28/2012 | EP2526255A2 Differential pressure wellbore tool and related methods of use |
| 11/28/2012 | EP2526254A1 Wellbore knock-out chamber and related methods of use |
| 11/28/2012 | CN101641489B Drilling tool with fluid cleaner |
| 11/21/2012 | CN102791955A Differential pressure wellbore tool and related methods of use |
| 11/15/2012 | WO2012085556A3 Downhole apparatus and method |
| 11/14/2012 | CN102782247A Wellbore knock-out chamber and related methods of use |
| 11/14/2012 | CN102777125A Monitoring electrohydraulic control pile foundation enlarged base device |
| 11/08/2012 | WO2012063071A3 Modular tool for wellbore cleaning |
| 11/07/2012 | CN102767343A Collector for small falling objects |
| 11/01/2012 | WO2012149345A2 Drilling waste treatment |
| 11/01/2012 | WO2012148578A2 Centrifugal subterranean debris collector |
| 11/01/2012 | CA2834568A1 Drilling waste treatment |
| 10/31/2012 | CN202510072U Drilling tool and rotary drilling rig with same |
| 10/25/2012 | US20120267115 Subsea sampling system and method |
| 10/17/2012 | CN202493233U Drawtube sand lifting device |
| 10/11/2012 | US20120255777 Wellbore pressure control with optimized pressure drilling |
| 10/11/2012 | US20120255727 Apparatus and Method For Testing Solids Production In A Wellbore |
| 10/04/2012 | WO2012135466A2 Methods for supplying a chemical within a subterranean formation |
| 10/04/2012 | US20120247755 Dump Bailer |
| 09/19/2012 | CN202441297U Three-fork bidirectional squeezed real-time slag removal device |
| 09/07/2012 | WO2012118384A1 Method and apparatus for local supply of a treatment fluid to a well portion |
| 09/06/2012 | US20120222867 Hydrocarbons |
| 09/05/2012 | CN202417371U Rotary drilling bottom-enlarging pore-forming slag-dredging device |
| 09/05/2012 | CN202417302U Vibrating drilling type impact digging drilling machine |
| 09/04/2012 | US8256505 Sealed well cellar |
| 08/02/2012 | WO2012102694A1 Wellbore knock-out chamber and related methods of use |
| 07/31/2012 | US8230949 Auger boring machine having spoils ejector |
| 07/25/2012 | CN102606104A Composite magnetic rod type sand setting cylinder |
| 07/18/2012 | CN102587857A Pipe drill sand lifting device |
| 07/18/2012 | CN102587856A Three-branch bidirectional extrusion-expansion real-time slag removing device |
| 07/04/2012 | CN202300262U 抽油井沉砂装置 Grit means pumping wells |
| 07/04/2012 | CN102536146A Drilling bucket and rotary drilling rig |
| 07/04/2012 | CN102536145A Sand setting assembly for screw drilling tool |
| 06/28/2012 | CA2822013A1 Downhole apparatus and method |
| 06/27/2012 | EP2467564A1 Downhole tool head for releasing precipitated solids |
| 06/27/2012 | CN202284466U 一种油井注蒸汽调配管柱 One kind of steam injection wells allocate string |
| 06/21/2012 | US20120152547 Wettability analysis of disaggregated material |
| 06/21/2012 | CA2819364A1 Autonomous downhole conveyance system |
| 06/14/2012 | US20120145383 Pressure measurement in highly deviated wells |
| 06/07/2012 | US20120138292 Gas Generator For Pressurizing Downhole Samples |
| 06/06/2012 | EP2459842A2 Wellbore cleanout tool |
| 06/06/2012 | CN202266218U Slag fishing barrel for rotary drill |
| 05/31/2012 | US20120132415 Oil-pressure type fixed piston sampler |
| 05/30/2012 | CN202249876U Hydraulic rotary jet sand settling barrel suitable for cleaning low-pressure gas well shaft |
| 05/30/2012 | CN202249875U Deposition type desander |
| 05/30/2012 | CN202249874U Device for cleaning up sand from liquid gas |
| 05/30/2012 | CN102482936A 用于石油井抽取碳氢化合物的装置 Petroleum hydrocarbons well means for extracting |
| 05/30/2012 | CN102482926A 用于释放沉淀固体的井下工具头 Downhole tool head for the release of solid precipitation |
| 05/23/2012 | CN202228029U Sand bailer for down-hole operation of oil field |
| 05/23/2012 | CN202228028U Downhole bailing device in oil field |
| 05/23/2012 | CN202228026U Sand setting type cleanable well check valve suitable for high-inclination well |
| 05/23/2012 | CN102465676A 小件落物收集器 Small pieces of junks collector |
| 05/18/2012 | CA2817638A1 Modular tool for wellbore cleaning |
| 05/17/2012 | US20120118584 Modular tool for wellbore cleaning and method of use |
| 05/17/2012 | US20120118576 Modular tool for wellbore cleaning |
| 05/09/2012 | EP2449210A1 Arrangement used in oil field wells for lifting hydrocarbons |
| 05/09/2012 | CN202215173U Automatic opening type sand pump |
| 05/03/2012 | WO2012057634A1 Method for using tracer flowback for estimating influx volumes of fluids from different influx zones |
| 05/03/2012 | CA2852632A1 Method for using tracer flowback for estimating influx volumes of fluids from different influx zones |
| 04/26/2012 | US20120097385 Formation Fluid Sample Container Apparatus |
| 04/25/2012 | CN202202832U 螺旋钻进式捞砂泵 Helical Drilling style fishing sand pump |
| 04/25/2012 | CN202202818U 潜孔锤局部气举反循环集渣装置 DTH local gas lift Reverse Circulation set Java device |
| 04/25/2012 | CN102425389A 地下暗河中的灌注桩孔孔底清渣方法及掏渣桶和吹送清渣系统 Underground river in the bottom slag pile Holes method and dig slag buckets and blowing slag system |
| 04/25/2012 | CN102425388A 钻孔桩捞渣筒钻 Drilling slag pile drilling tube |
| 04/25/2012 | CN102425372A 振动钻进式冲挖钻机 Vibration punching and drilling rig drilling |
| 04/24/2012 | US8162052 Formation tester with low flowline volume and method of use thereof |
| 04/19/2012 | US20120090851 Bailer stimulation production unit |
| 04/12/2012 | US20120085547 Processes and systems for treating oil and gas wells |
| 04/11/2012 | CN202187735U 钻孔桩捞渣筒钻 Drilling slag pile drilling tube |
| 03/29/2012 | US20120073808 Coiled Tubing Deployed Single Phase Fluid Sampling Apparatus and Method for Use of Same |
| 03/29/2012 | US20120073807 Coiled Tubing Deployed Single Phase Fluid Sampling Apparatus and Method for Use of Same |
| 03/29/2012 | US20120073806 Low cut water sampling device |
| 03/27/2012 | US8141639 Detonator for material-dispensing wellbore tools |