| Patents for E21B 25 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors (2,102) |
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| 03/05/2015 | WO2015031475A1 Mechanical core jam indicator for coring tools, coring tools including such core jam indicators, and related methods |
| 03/05/2015 | US20150060142 Mechanical core jam indicator for coring tools, coring tools including such core jam indicators, and related methods |
| 02/24/2015 | US8960327 System for monitoring coring operations |
| 02/24/2015 | US8960325 Free-mass and interface configurations of hammering mechanisms |
| 02/19/2015 | US20150047909 WD Sidewall Coring Tool |
| 02/11/2015 | CN103147687B 在钻孔桩井筒底部开挖岩石的环式切削法 At the bottom of the borehole drilling piles of rock excavation ring cutting method |
| 02/10/2015 | CA2764539C Method for creating a 3d model of a hydrocarbon reservoir, and method for comparative testing of hydrocarbon recovery techniques |
| 02/05/2015 | WO2015015159A2 Apparatus, system and method for cleaning a borehole |
| 02/04/2015 | EP2831366A1 A core tray |
| 02/04/2015 | CN204140010U 岩心抱取用的卡簧 Core hold drawn retainer |
| 02/04/2015 | CN102747973B 井下钻孔取芯机 Underground core drilling machine |
| 02/03/2015 | CA2785095C Hydrocarbon formation core protection and transportation apparatus |
| 01/28/2015 | CN204126581U 内管到位发声报警绳索取心钻具 Audible alarm in place the tube rope coring drill |
| 01/28/2015 | CN204126580U 一种钻芯机 One kind of core drilling machine |
| 01/28/2015 | CN204126579U 一种用于钻芯机的取芯钻 Core drilling machine for core drilling |
| 01/28/2015 | CN104314497A 一种应用于液动加压式取心工具的岩心密封装置 Applied to hydraulic coring tools pressurized core sealing device |
| 01/27/2015 | CA2784532C Core drilling tools with retractably lockable driven latch mechanisms |
| 01/22/2015 | WO2015010005A1 Pressure compensation modules for coring tools, coring tools including pressure compensation modules, and related methods |
| 01/22/2015 | WO2015010003A1 Coring tools and methods for making coring tools and procuring core samples |
| 01/21/2015 | CN104302867A 烘芯托板 Bake core pallet |
| 01/21/2015 | CN104295256A 喷射式取心工具 Jet coring tool |
| 01/21/2015 | CN104295232A 空气潜孔锤单动双管取心跟管钻具 DTH hammer single action with double tube coring drill pipe |
| 01/15/2015 | US20150014064 Core drilling tools with external fluid pathways |
| 01/07/2015 | CN104265264A 一种全适应地层岩心进筒异常显示机构 A fully adapt to the abnormal formation of core barrel into the display mechanism |
| 01/07/2015 | CN104265220A 内管到位发声报警绳索取心钻具 Audible alarm in place the tube rope coring drill |
| 01/07/2015 | CN104265219A 一种岩芯原状结构识别装置和方法 One kind of undisturbed core structure recognition apparatus and method |
| 01/07/2015 | CN104264721A 围岩损伤区分区的测试方法 Partition testing methods rock damage zone |
| 01/06/2015 | US8925650 Slide-type core retainer for sample collector |
| 12/31/2014 | CN204060678U 一种测井取心井下仪器保护装置 Logging and coring downhole equipment protection devices |
| 12/31/2014 | CN104254662A 仪表化的岩心筒装置和相关方法 Instrumented core barrel apparatus and related method |
| 12/31/2014 | CN102661147B 一种超前伸缩式取样钻具 One kind of advanced telescopic sampling drill |
| 12/25/2014 | US20140374158 Core sample orientation |
| 12/24/2014 | CN204040966U 一种钻孔取样装置 Drilling a hole sampling device |
| 12/24/2014 | CN204040965U 软地层钻井取心用透明衬筒 Coring drilling soft formations transparent liner |
| 12/24/2014 | CN102425387B 一种硬岩取芯机构及桩工设备 One kind of hard rock coring mechanism and pile driving equipment |
| 12/18/2014 | US20140367086 Apparatus and method for storing core samples at high pressure |
| 12/17/2014 | CN204024551U 一种水平井钻井密闭取心工具悬挂总成 A horizontal well drilling suspension assembly sealed coring tool |
| 12/17/2014 | CN204024550U 一种钻井取心组合钻具 One kind of combination of drilling coring drill |
| 12/17/2014 | CN204024549U 一种用于工程地质勘察岩芯管管内土芯样取出的辅助接手 An auxiliary took possession of the inner core engineering geological survey soil core samples taken |
| 12/17/2014 | CN204024548U 一种新型的半合式单动双管钻具 A new half-formed single-action double barrel drill |
| 12/17/2014 | CN204024547U 一种运用于勘察钻机的钻进装置 One kind of device used in reconnaissance drilling rig |
| 12/17/2014 | CN104213860A 一种用于工程地质勘察岩芯管管内土芯样取出的辅助接手 An auxiliary took possession of the inner core engineering geological survey soil core samples taken |
| 12/10/2014 | CN204002663U 绳索取心水力加压器 Coring hydraulic presser |
| 12/10/2014 | CN204002578U 一种强力抽吸式反循环取心钻头 A powerful suction reverse circulation drill coring |
| 12/10/2014 | CN104196479A 一种用于绳索取心钻进的电磁随钻测量系统 An electromagnetic rope coring drilling MWD system |
| 12/10/2014 | CN104196478A 岩心抱取用的卡簧 Core hold drawn retainer |
| 12/10/2014 | CN104196477A 软地层钻井取心用透明衬筒 Coring drilling soft formations transparent liner |
| 12/04/2014 | US20140353044 Core barrel head assembly |
| 11/04/2014 | US8875809 Core drill and coring method |
| 11/04/2014 | US8875806 Formation dip geo-steering method |
| 10/28/2014 | US8869918 Core drilling tools with external fluid pathways |
| 10/21/2014 | US8863860 System and method of improved depth of cut control of drilling tools |
| 09/23/2014 | US8843220 Position and velocity measurement tool for standard and directional drilling |
| 09/18/2014 | WO2014142124A1 Core collecting device and container transferring device |
| 09/18/2014 | US20140262532 Core sampling apparatus and container transfer apparatus |
| 09/18/2014 | US20140262527 Device and method for extracting a sample while maintaining a pressure that is present at the sample extraction location |
| 09/03/2014 | EP2771536A2 Device and method for extracting a sample while maintaining a pressure that is present at the sample extraction location |
| 09/02/2014 | US8820436 Coring tool and method |
| 08/28/2014 | WO2013119724A3 Instrumented core barrel apparatus and associated methods |
| 08/28/2014 | US20140238743 Core sample orientation |
| 08/13/2014 | CN203769697U 欠尺寸规径取芯钻头 Less regulation size diameter core drill |
| 08/13/2014 | CN203769696U 小岩芯取样钻头 Small drill core sampling |
| 08/06/2014 | CN203756032U 一种曲面道路结构层钻芯取样车 One kind of road surface structure layer drilled core samples car |
| 08/06/2014 | CN203756022U 一种液压手动钻 A hydraulic hand drill |
| 08/06/2014 | CN103967437A 井下压风定点取样装置及取样工艺 Downhole pressure air sampling devices and sampling process sentinel |
| 08/06/2014 | CN103967421A 一种强力抽吸式反循环取心钻头 A powerful suction reverse circulation drill coring |
| 08/06/2014 | CN102828689B 电缆悬挂式气体局部反循环电动机械取芯钻具 Cable hanging gas partial reverse circulation drill coring electrical machinery |
| 08/05/2014 | US8797035 Apparatus and methods for monitoring a core during coring operations |
| 08/05/2014 | CA2784195C Core barrel assembly including a valve |
| 07/31/2014 | US20140209385 Sealed Core |
| 07/30/2014 | CN203742510U 欠平衡钻井取心投球装置 Underbalanced drilling, coring pitching device |
| 07/30/2014 | CN203742509U 捞心装置 Fishing heart device |
| 07/30/2014 | CN203742445U 车载式钻孔取芯机 Truck-mounted coring machine |
| 07/30/2014 | CN203742444U 风冷取芯钻机 Air-cooled coring rig |
| 07/23/2014 | CN203729927U 井壁取心出样台 Coring sampling station |
| 07/23/2014 | CN203729926U 常规钻井取心接洗台 Conventional drilling coring pick wash station |
| 07/16/2014 | CN203716903U 一种沥青路面手动取芯器 Asphalt Pavement hand corer |
| 07/16/2014 | CN102134980B 一种预紧密封板阀装置 One kind of pretension sealing plate valve device |
| 07/10/2014 | WO2014107245A1 Reinforced shear components and methods of using same |
| 07/10/2014 | US20140190746 Unmanned Unattended Mineral Exploration Drilling and Sample Return System |
| 07/09/2014 | EP2751380A1 Borehole surveying tool deployment |
| 07/09/2014 | CN203702050U 密闭取心井岩心处理操作台 Sealed coring wells core processing console |
| 07/09/2014 | CN203702049U 38mm大颗粒测压取芯器 38mm large particle load corer |
| 07/09/2014 | CN102606103B 与深海钻机配套的沉积物保压存储装置及其使用方法 Sediment dwell deep sea drilling rig storage device and method for its use |
| 07/09/2014 | CN102606102B 钻具取芯衬管下端口的岩心防漏器及其使用方法 Coring drill cores port liner leak and its use |
| 07/08/2014 | US8770319 Pump-in seal |
| 07/08/2014 | CA2720810C Sonic drill bit for core sampling |
| 07/02/2014 | CN103899265A 大颗粒取芯枪 Large particles coring gun |
| 06/26/2014 | US20140174828 Core Drilling Tools With Retractably Lockable Driven Latch Mechanisms |
| 06/25/2014 | CN103883245A 一种液压手动钻 A hydraulic hand drill |
| 06/19/2014 | WO2014089618A1 Rotation activated downhole orientation system and method |
| 06/18/2014 | CN203655200U 地质抽样系统 Geological sampling system |
| 06/18/2014 | CN203655199U 深孔绳索取芯钻具 Deep rope coring drill |
| 06/18/2014 | CN203655147U 一种深孔岩芯钻机用动力头 One kind of deep core drilling with a power head |
| 06/18/2014 | CN103867132A Diamond-impregnated geological prospecting coring bit with plowing and breaking functions |
| 06/18/2014 | CN101999027B Sonic drill bit for core sampling |
| 06/11/2014 | CN203640646U 一种岩芯采取装置及安装岩芯采取装置的凿岩机 One kind of core sampling device and installation of rock drill core sampling device |
| 06/04/2014 | CN203626676U 深海小型电动取芯潜钻 Small electric submersible deep sea coring drill |
| 06/04/2014 | CN203626675U 一种钻井取心投球接头 One kind of pitching joint coring drilling |
| 06/04/2014 | CN203626674U 一种保温保压复合式可切割取心内筒 Insulating packing composite inner tube can be cut coring |