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公开(公告)号：EP2961917B1
公开(公告)日：2018-09-19
申请号：EP14704130.5
申请日：2014-02-11
发明人： BÄCK, Göran
IPC分类号： E21B23/00
CPC分类号： E21B17/046 , E21B23/006 , E21B25/02
摘要： An overshot tool for releasable connection to a head assembly as part of a core barrel drilling apparatus. The overshot tool comprises a primary engaging portion and a secondary engaging portion and is configured for the automated coupling and de-coupling to a head assembly via selected engagement of the head assembly by the engaging portion. The overshot tool is configured to both deliver and retrieve a head assembly from a latched position at a cutting end the core barrel.
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公开(公告)号：EP3314084A1
公开(公告)日：2018-05-02
申请号：EP16813422.9
申请日：2016-05-27
申请人： Epiroc Canada Inc.
发明人： SALVADOR, Patrick
摘要： A core barrel head assembly including an upper body comprising a central passage. A pair of latches is arranged in the central passage. Each latch pivots about a pivot point at a first end. Each latch includes a latch release at a second end and an outer tube surface engaging surface between the first end and the second end. A retracting case includes a first end configured to engage at least the latch release of the latches. The outer tube surface engaging surface of each latch extends through a latch slot in an outer wall of the upper body and such that the latches rotate about the pivot point. The latches are movable between an extended position and retracted position by the retracting case with a mechanical advantage.
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3.发明公开A HEAD ASSEMBLY AND A VALVE SYSTEM FOR USE IN A CORE DRILLING SYSTEM 有权KOPBANORDNUNG UNDENTILSYSTEM ZUR VERWENDUNG IN EINEM KERNBOHRSYSTEM
公开(公告)号：EP3004525A4
公开(公告)日：2017-03-01
申请号：EP14807243
申请日：2014-05-30
发明人： ATTIWELL PAUL
摘要： A valve system for an inner tube assembly is described. The inner tube assembly is arranged to be used in a drilling system to retrieve a core sample, and is arranged to be insertable into a drill string of the drilling system at a first end of the drill string. The valve system is arranged to be configurable in a first closed configuration, an open configuration, and a second closed configuration. The valve system moves to the first closed configuration when fluid is pumped along an interior region of the drill string towards the inner tube assembly in a direction from the first end of the drill string to the inner tube assembly. The valve system is arranged such that, when in the first closed configuration, a pressure of the fluid increases to facilitate deploying the inner tube assembly towards a second end of the drill string. The valve system moves to the open configuration in response to the inner tube assembly reaching a vicinity of the second end of the drill string and being prevented from moving further towards the second end of the drill string. The valve system is arranged such that, when in the open configuration, fluid can flow to a drill bit located at or near the second end of the drill string. The valve system moves to the second closed configuration when fluid is pumped along the interior region of the drill string towards the inner tube assembly in a direction from the second end of the drill string to the inner tube assembly. The valve system is arranged such that, when in the second closed configuration, the pressure of the fluid increases to facilitate retrieving the inner tube assembly from the vicinity of the second end of the drill string.
摘要翻译： 描述了用于内管组件的阀系统。 内管组件布置成用于钻井系统中以取回芯样品，并且布置成在钻柱的第一端处可插入钻井系统的钻柱中。 阀系统被布置成可配置成第一关闭配置，打开配置和第二关闭配置。 当沿着钻柱的内部区域沿着从钻柱的第一端到内管组件的方向朝向内管组件泵送流体时，阀系统移动到第一关闭构造。 阀系统被布置成使得当处于第一关闭构造时，流体的压力增加以便于朝向钻柱的第二端部展开内管组件。 响应于内管组件到达钻柱的第二端的附近，阀系统移动到打开构造，并且被阻止朝向钻柱的第二端进一步移动。 阀系统布置成使得当处于打开构造时，流体可以流到位于钻柱的第二端处或附近的钻头。 当沿着从钻柱的第二端到内管组件的方向沿着钻柱的内部区域朝向内管组件泵送流体时，阀系统移动到第二闭合构造。 阀系统布置成使得当处于第二关闭构造时，流体的压力增加以便于从钻柱的第二端附近取回内管组件。
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公开(公告)号：EP3004525A1
公开(公告)日：2016-04-13
申请号：EP14807243.2
申请日：2014-05-30
发明人： ATTIWELL, Paul
摘要： A valve system for an inner tube assembly is described. The inner tube assembly is arranged to be used in a drilling system to retrieve a core sample, and is arranged to be insertable into a drill string of the drilling system at a first end of the drill string. The valve system is arranged to be configurable in a first closed configuration, an open configuration, and a second closed configuration. The valve system moves to the first closed configuration when fluid is pumped along an interior region of the drill string towards the inner tube assembly in a direction from the first end of the drill string to the inner tube assembly. The valve system is arranged such that, when in the first closed configuration, a pressure of the fluid increases to facilitate deploying the inner tube assembly towards a second end of the drill string. The valve system moves to the open configuration in response to the inner tube assembly reaching a vicinity of the second end of the drill string and being prevented from moving further towards the second end of the drill string. The valve system is arranged such that, when in the open configuration, fluid can flow to a drill bit located at or near the second end of the drill string. The valve system moves to the second closed configuration when fluid is pumped along the interior region of the drill string towards the inner tube assembly in a direction from the second end of the drill string to the inner tube assembly. The valve system is arranged such that, when in the second closed configuration, the pressure of the fluid increases to facilitate retrieving the inner tube assembly from the vicinity of the second end of the drill string.
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5.发明公开A RELEASE VALVE USED IN AN INNER TUBE ASSEMBLY FOR USE WITH A CORE BARREL 审中-公开ENTRASTUNGSVENTIL IN EINER INNENROHRANORDNUNG ZUR VERWENDUNG MIT EINEM KERNROHR
公开(公告)号：EP2971454A2
公开(公告)日：2016-01-20
申请号：EP14704129.7
申请日：2014-02-11
发明人： BÄCK, Göran
CPC分类号： E21B21/103 , E21B21/10 , E21B23/00 , E21B23/006 , E21B25/02 , E21B34/10 , E21B47/091
摘要： An inner tube assembly releasably latchable with a core barrel of a core drilling apparatus. The inner tube assembly includes a valve housing having a fluid flow port and a position guide to control a position of the valve body within the valve housing to open and close the port in response to a fluid pressure acting on the valve body.
摘要翻译： 内筒组件，其可释放地与芯钻井装置的芯筒联接。 内管组件包括具有流体流动端口和位置引导件的阀壳体，用于响应于作用在阀体上的流体压力来控制阀体内阀体的位置以打开和关闭端口。
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公开(公告)号：EP2611986A1
公开(公告)日：2013-07-10
申请号：EP10856543.3
申请日：2010-08-30
发明人： SALVADOR, Patrick , GROULX, Dennis , LAMBERT, Paul
IPC分类号： E21B25/00
CPC分类号： E21B25/00 , E21B17/023 , E21B23/02 , E21B25/02
摘要： A core barrel head assembly positionable within a drill string of a drilling apparatus. The core barrel head assembly comprises an upper latch body having a latch assembly for engageably latching the drill string, and a reduced diametric portion below the latch assembly for receiving a seal member. The reduced diametric portion has a lower coupling portion on a bottom portion thereof. The head assembly also includes a lower latch body comprising an upper coupling portion on a top portion thereof, as well as a coupler for removably coupling the upper latch body to the lower latch body. The seal member is installable on and removable from the reduced diametric portion upon uncoupling the upper latch body from the lower latch body. The head assembly is quickly reconfigurable between surface and pump in/underground configurations. Core barrel outer tube components also do not require reconfiguring between these two configurations.
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公开(公告)号：EP2271818A2
公开(公告)日：2011-01-12
申请号：EP09735209.0
申请日：2009-04-22
申请人： Longyear TM, Inc.
IPC分类号： E21B23/01
摘要： A braking device for drilling operations in a borehole includes a brake retainer having a plurality of brake connector openings defined therein, a body member having a tapered surface having a first diameter and a second diameter, the second diameter being larger than the first diameter, at least one brake element positioned at least partially between the brake retainer and the body member and in communication with the tapered surface and at least one of the brake connector openings, and a bias member configured to exert a biasing force on the body member to move the body member toward the brake retainer to move the brake element from contact with the first diameter of the tapered surface toward contact with the second diameter.
摘要翻译： 用于在钻孔中进行钻孔操作的制动装置包括制动器保持器，该制动器保持器具有限定在其中的多个制动器连接器开口，主体构件具有锥形表面，该锥形表面具有第一直径和第二直径，第二直径大于第一直径， 至少一个制动元件，所述至少一个制动元件至少部分地定位在所述制动器保持器和所述主体构件之间并且与所述锥形表面和所述制动连接器开口中的至少一个连通;以及偏置构件，所述偏置构件被配置为在所述主体构件上施加偏置力以移动 将所述制动元件朝向所述制动器保持器移动以使所述制动元件与所述锥形表面的所述第一直径接触而朝向与所述第二直径接触。
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公开(公告)号：EP2132395A1
公开(公告)日：2009-12-16
申请号：EP08731246.8
申请日：2008-03-03
申请人： Boart Longyear , Drenth, Chris
发明人： DRENTH, Chris
CPC分类号： E21B25/02
摘要： High productivity core drilling systems are described. The system includes a drill string, an inner core barrel assembly, an outer core barrel assembly, and a retrieval tool that connects the inner core barrel assembly to a wireline cable and hoist. The drill string comprises multiple variable geometry drill rods. The inner core barrel assembly comprises a non-dragging latching mechanism, such as a fluid-driven latching mechanism that contains a detent mechanism that retains the latches in either an engaged or a retracted position. The inner core barrel assembly also comprised high efficiency fluid porting. Accordingly, the drilling system significantly increases productivity and efficiency in core drilling operations by reducing the time required for the inner core barrel assembly to travel through the drill string. Other embodiments are also described.
摘要翻译： 描述了高生产率岩心钻井系统。 该系统包括钻柱，内芯筒组件，外芯筒组件以及将内芯筒组件连接到缆绳缆绳和升降机的取回工具。 钻柱包括多个可变几何形状的钻杆。 内芯筒组件包括非拖曳闭锁机构，诸如流体驱动闭锁机构，其包含将闭锁保持在接合位置或缩回位置的止动机构。 内芯筒组件还包括高效率流体输送。 因此，通过减少内芯棒组件穿过钻柱所需的时间，钻探系统显着提高了钻芯操作中的生产率和效率。 还描述了其他实施例。
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公开(公告)号：EP0995010B1
公开(公告)日：2004-03-17
申请号：EP98933379.4
申请日：1998-07-08
发明人： FANUEL, Philippe , SERRON, Paul
摘要： The invention concerns a core barrel, in particular in the field of oil exploration, comprising at least an outer tube (2) and a core bit (3) forming an outer assembly (4) and at least an inner tube (5) forming with a drilling core optionally present therein, and optionally with part of the groups arranged under the drilling core base, an inner assembly (7), suspension and/or guiding means being provided for maintaining the inner assembly (7) inside the outer assembly (4), the suspension and/or guiding means being further arranged such that the inner assembly (7) maintains at least perpendicular to these means (9), with respect to the outer assembly (4), a predetermined axial and/or radial and/or angular freedom of movement greater than usual.
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公开(公告)号：EP0715677A4
公开(公告)日：2001-04-04
申请号：EP94927337
申请日：1994-08-31
发明人： ORMSBY RONALD D
CPC分类号： E21B25/02
摘要： Coring apparatus (10) and method are disclosed which provide for hydraulic latching of an inner core barrel (26) within an outer core barrel (12). The apparatus includes a valve face (48) disposed around the inner core barrel (26) and valve seat (52) disposed around the bore of the outer core barrel (12) that close to form a restriction in drilling fluid flow path (54). A hydraulic differential force is thereby created which holds the inner barrel (26) in place. Axially oriented bores (64) in a hanger assembly (58) and in stabilizers (62) are disposed along the inner core barrel (26) to provide a flow path for the drilling fluid after the restriction is formed. The bores are calibrated to produce a pre-determined hydraulic force on the inner barrel (26). A bearing assembly (30) is used to prevent transmission of outer barrel (12) rotation to the inner core barrel (26). The outer surface of the bearing assembly (30) forms the valve face (48) so as to form the drilling fluid restriction and also provides an axial stop that prevents further axial movement of the inner barrel (26) towards the core head (14).
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