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公开(公告)号：US20180340381A1
公开(公告)日：2018-11-29
申请号：US15606501
申请日：2017-05-26
发明人： Shaohua Zhou
摘要： Mitigating drilling circulation loss can be implemented as a wellbore drilling system that includes a drilling liner and a drill head assembly. The drilling liner is configured to be positioned in a lost circulation zone of a subterranean formation in which a wellbore is being drilled. The drilling liner is configured to flow wellbore drilling fluids from a surface of the wellbore to the subterranean formation while avoiding the lost circulation zone. The drill head assembly is attached to a downhole end of the drilling liner, and is configured to drill the subterranean formation to form cuttings, receive the wellbore drilling fluids, and flow the cuttings and the wellbore drilling fluids into the drilling liner while avoiding the lost circulation zone and towards the surface of the wellbore.
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公开(公告)号：US20180195358A1
公开(公告)日：2018-07-12
申请号：US15741057
申请日：2016-03-29
摘要： Systems and methods for a protective connection for coring inner barrels are disclosed. A coring apparatus includes a first inner barrel, a second inner barrel, and a tubular extension between adjacent ends of the first and second inner barrels. The coring apparatus includes an outer connector member moveably positioned about the tubular extension and configured for releasably connecting the first and second inner barrels. The first and second inner barrels and tubular extension define a substantially continuous tubular inner structure to receive a core sample.
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公开(公告)号：US09963946B2
公开(公告)日：2018-05-08
申请号：US14762309
申请日：2013-12-24
摘要： A method for obtaining a core sample from a wellbore using a coring tool is disclosed. The method includes providing an outer barrel in the wellbore. The wellbore and outer barrel are at least partially filled with a drilling fluid. The method further includes lowering an inner barrel partially into the drilling fluid and displacing the drilling fluid in the inner barrel with a coring fluid.
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公开(公告)号：US20180112482A1
公开(公告)日：2018-04-26
申请号：US15848688
申请日：2017-12-20
摘要： Core sample catchers for use with coring tools for obtaining core samples from subterranean formations may include at least one flap catcher member configured to be movably coupled to an inner barrel of the coring tool and configured to move between an open position and a closed position. A piston member including a central bore may be disposed in a passageway extending through the inner barrel. The piston member may be configured to move between a first position and a second position, the piston member configured to retain the at least one flap catcher member in the open position when the piston member is in the first position, and allow flap catcher member to move into the closed position when the piston member is in the second position.
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公开(公告)号：US20180058210A1
公开(公告)日：2018-03-01
申请号：US15244679
申请日：2016-08-23
发明人： Daniel RADTKE , Thomas D. HERRMANN
IPC分类号： E21B49/00 , E21B49/06 , E21B10/02 , E21B49/10 , E21B47/06 , E21B47/00 , E21B47/024 , E21B47/18 , E21B47/12
CPC分类号： E21B49/00 , E21B10/02 , E21B41/00 , E21B47/0006 , E21B47/024 , E21B47/06 , E21B47/065 , E21B47/123 , E21B47/18 , E21B49/06 , E21B49/10
摘要： An apparatus for manipulating an object in a borehole in an earthen formation includes a body configured to be conveyed along the borehole and a plurality of linear actuators disposed in the body and operatively connected to the object. The plurality of linear actuators applies a translational and rotational movement to the object. A related method includes applying a translational and rotational movement to the object using the plurality of linear actuators.
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公开(公告)号：US09856709B2
公开(公告)日：2018-01-02
申请号：US14478187
申请日：2014-09-05
摘要： A core sample catcher for a coring tool includes at least one flap catcher member movably coupled to an inner barrel of the coring tool. The at least one flap catcher member is configured to move between a first position and a second position. A passageway extending through the inner barrel is at least substantially un-occluded by the at least one flap catcher member in the first position and at least partially occluded by the at least one flap catcher member in the second position. The core sample catcher also includes a piston member located and configured to retain the at least one flap catcher member in the first position. The piston member is sized and configured to release the at least one flap catcher member as the piston is forced upward within the inner barrel by the core sample. Components are provided and assembled to form core sample catchers.
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公开(公告)号：US20170362900A1
公开(公告)日：2017-12-21
申请号：US15303668
申请日：2016-03-03
申请人： LONGYEAR TM, INC.
摘要： A drill bit for cutting a hole in a formation. The drill bit has a shank and a crown. The crown has a plurality of crown portions that are spaced about an operative circumference of the drill bit. The shank and crown cooperate to define an interior space that receives water or other drilling fluid. Each crown portion has two longitudinal edges, an outer surface, at least one inner surface and a cutting face. The crown has a base surface that is spaced from the cutting faces of the crown portions and cooperates with the inner surface of each of the two crown portions to define a slot.
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公开(公告)号：US09803441B2
公开(公告)日：2017-10-31
申请号：US14438743
申请日：2013-11-08
申请人： Flexidrill Limited
发明人： Gregory Donald West
摘要： A retrievable core sampling assembly for latching to or relative to a rotatable tubular housing of a core sampling apparatus to allow the capture and retrieval of a core from a subterranean formation, the assembly comprising or including: a core catcher barrel for a core, the barrel being rotationally isolated from the tubular housing and cooperable with a core taking bit coupled to the rotatable tubular housing to retain a core, and a hammer for providing impact to the core taking bit along a longitudinal impact path that is or is substantially decoupled from the core catcher barrel so that when latched, rotation and impact of the core taking bit captures and passes core material from the formation to the core catcher barrel in manner that isolates a core in the core catcher barrel from rotation and impact forces.
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公开(公告)号：US20170275949A1
公开(公告)日：2017-09-28
申请号：US15521009
申请日：2015-08-28
发明人： Ki-Ho KIM , Jun-Yong YUN
IPC分类号： E21B10/55 , B23P5/00 , C21D9/22 , C22C38/00 , C22C38/32 , C22C38/22 , C22C38/02 , E21B10/02 , C22C38/38
CPC分类号： E21B10/55 , B23P5/00 , B23P15/28 , C21D1/42 , C21D9/22 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C21D2211/009 , C22C38/002 , C22C38/02 , C22C38/22 , C22C38/32 , C22C38/38 , E21B10/02 , E21B10/46 , Y02P10/253
摘要： Disclosed are a drill bit for drilling and a method for manufacturing same, in which the hardness of a body part of a shank can be selectively improved by performing rapid cooling in a forced cooling method after performing rapid heating selectively only on the body part of the shank in a high-frequency induction heating method after completing infiltration.
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公开(公告)号：US20170167214A1
公开(公告)日：2017-06-15
申请号：US15441848
申请日：2017-02-24
发明人： Audun Kvinnesland
摘要： An inner barrel assembly for use with a coring tool may include a sleeve located coaxially within an inner barrel in a telescoping manner. The core barrel assembly may also include a cap located above a top end of the sleeve when the inner barrel assembly is in an initial coring position. The cap may include a skirt having a portion extending downwardly from the cap. A coring tool including an inner barrel assembly and methods of forming an inner barrel assembly are also disclosed.
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