Activation modules for obstructing entrances to inner barrels of coring tools and related coring tools and methods

    公开(公告)号:US10435974B2

    公开(公告)日:2019-10-08

    申请号:US15676310

    申请日:2017-08-14

    Abstract: Activation modules for selectively sealing entrances to inner barrels of coring tools may include an activator body and an activation rod movable between a first position and a second position. A locking element may temporarily hold the activator body in place and a sealing element may form a temporary seal. The activation rod may include a locking portion, a releasing portion of a smaller diameter, a sealing portion, and an unsealing portion of a smaller diameter. The locking portion may be aligned with the locking element and the sealing portion may be aligned with the sealing element when the activation rod is in the first position. The releasing portion may be aligned with the locking element and the unsealing portion may be aligned with the sealing element when the activation rod is in the second position.

    Coring tools including core sample flap catcher and related methods

    公开(公告)号:US10202813B2

    公开(公告)日:2019-02-12

    申请号:US15848688

    申请日:2017-12-20

    Abstract: 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.

    ACTIVATION MODULES FOR OBSTRUCTING ENTRANCES TO INNER BARRELS OF CORING TOOLS AND RELATED CORING TOOLS AND METHODS

    公开(公告)号:US20170342790A1

    公开(公告)日:2017-11-30

    申请号:US15676310

    申请日:2017-08-14

    CPC classification number: E21B25/00 E21B10/02 E21B49/02

    Abstract: Activation modules for selectively sealing entrances to inner barrels of coring tools may include an activator body and an activation rod movable between a first position and a second position. A locking element may temporarily hold the activator body in place and a sealing element may form a temporary seal. The activation rod may include a locking portion, a releasing portion of a smaller diameter, a sealing portion, and an unsealing portion of a smaller diameter. The locking portion may be aligned with the locking element and the sealing portion may be aligned with the sealing element when the activation rod is in the first position, The releasing portion may be aligned with the locking element and the unsealing portion may be aligned with the sealing element when the activation rod is in the second position.

    Coring tools and related methods
    5.
    发明授权

    公开(公告)号:US09598911B2

    公开(公告)日:2017-03-21

    申请号:US14274495

    申请日:2014-05-09

    Abstract: A coring bit for extracting a sample of subterranean formation material from a well bore may include a bit body having a bit face and an inner surface defining a substantially cylindrical cavity of the bit body. A first portion of the inner surface may be configured to surround a core catcher. The coring bit may include a face discharge channel inlet formed in the inner surface of the bit body longitudinally at or above the first portion of the inner surface. The coring bit may also include a face discharge channel extending through the bit body from the face discharge channel inlet to the bit face. A tubular body having a core catcher may be disposed in the coring bit to form a coring tool. Methods of forming such bit bodies may include forming an inlet for a face discharge channel in the inner surface of the bit body at a location longitudinally at or above the first portion of the inner surface and forming a face discharge channel extending from the inlet to the bit face.

    Coring tools exhibiting reduced rotational eccentricity and related methods
    6.
    发明授权
    Coring tools exhibiting reduced rotational eccentricity and related methods 有权
    具有减小的旋转偏心率和相关方法的取心工具

    公开(公告)号:US09567813B2

    公开(公告)日:2017-02-14

    申请号:US14328318

    申请日:2014-07-10

    Abstract: Coring tools configured to procure core samples of earth formations may include a coring bit comprising a cutting structure configured to cut a core sample and an outer barrel connected to the coring bit. The outer barrel may be configured to apply axial and rotational force to the coring bit. An inner barrel may be located within the outer barrel and may be configured to receive a core sample within the inner barrel. A sponge material may line an inner surface of the inner barrel and may be configured to absorb a fluid from the core sample. A stabilizer may be connected to the outer barrel. At least one blade of the stabilizer may be rotatable with respect to the outer barrel and may be configured to remain at least substantially rotationally stationary relative to the earth formation during coring.

    Abstract translation: 配置成获取地层的岩心样品的取芯工具可以包括一个取芯钻头,其包括构造成切割芯样品的切割结构和连接到取芯钻头的外筒。 外筒可以构造成向取芯钻头施加轴向和旋转力。 内筒可以位于外筒内,并且可以构造成在内筒内容纳芯样品。 海绵材料可以排列在内筒的内表面上,并且可以构造成从芯样品吸收流体。 稳定器可以连接到外筒。 稳定器的至少一个叶片可以相对于外筒旋转,并且可构造为在取芯过程中相对于地层形成至少基本上可转动地固定。

    CORING TOOLS FOR MANAGING HYDRAULIC PROPERTIES OF DRILLING FLUID AND RELATED METHODS
    7.
    发明申请
    CORING TOOLS FOR MANAGING HYDRAULIC PROPERTIES OF DRILLING FLUID AND RELATED METHODS 审中-公开
    用于管理钻井液体液压特性的工具及相关方法

    公开(公告)号:US20160258223A1

    公开(公告)日:2016-09-08

    申请号:US14640656

    申请日:2015-03-06

    CPC classification number: E21B10/605 E21B10/02 E21B10/48

    Abstract: A coring bit for use on a coring tool for extracting a sample of subterranean formation from a well bore includes a bit body having a cavity, wherein a throat portion of the cavity extends into the bit body from a face of the bit body. The coring bit includes a sleeve disposed within the cavity of the bit body, the sleeve configured to separate a face discharge channel and a throat discharge channel. The face discharge channel is located radially outward of the sleeve and the throat discharge channel is located radially inward of the sleeve. A method of repairing a such a coring includes removing the sleeve from the cavity of a bit body.

    Abstract translation: 用于从井眼中提取地下地层样品的取芯钻头包括具有空腔的钻头体,其中腔体的喉部从钻头体的表面延伸到钻头体内。 取芯钻头包括设置在钻头体的腔体内的套筒,该套筒构造成分离面部排出通道和喉部排放通道。 面部排出通道位于套筒的径向外侧,并且喉部排出通道位于套筒的径向内侧。 修理这种取芯的方法包括将套筒从钻头体的空腔中取出。

    Core jam indicator for coring tools and coring tools including such core jam indicators

    公开(公告)号:US10125559B2

    公开(公告)日:2018-11-13

    申请号:US15646270

    申请日:2017-07-11

    Inventor: Thomas Uhlenberg

    Abstract: Core jam indicators for use with coring tools include a plug coupled with an inner barrel and configured to selectively close the entrance of the inner barrel. The plug has at least one fluid port extending through a wall of the plug between an interior and an exterior of the plug. The mandrel at least partially covers the at least one fluid port of the plug in an activated position and the at least one fluid port is at least partially uncovered by the mandrel in a deactivated position. The mandrel is coupled to the inner barrel. A piston force acting on the mandrel resulting from a pressure difference above and below the mandrel acts over an area smaller than a maximum transverse cross-sectional area of the inner barrel. Coring tools include such core jam indicators. Components are provided and assembled to form such core jam indicators.

    Sponge liner sleeves for a core barrel assembly, sponge liners and related methods

    公开(公告)号:US10072471B2

    公开(公告)日:2018-09-11

    申请号:US15050186

    申请日:2016-02-22

    CPC classification number: E21B25/06

    Abstract: A liner tube for a core barrel assembly includes a substantially cylindrical sleeve having an inner surface configured to be coupled to a layer of material that is configured to absorb or adsorb formation fluids or parts of formation fluids. At every longitudinal location of the sleeve with respect to a longitudinal axis of the sleeve, a transverse cross-section of a wall of the sleeve may include at least one gap extending radially through the entire wall of the sleeve, such that the at least one gap separates a portion of the sleeve wall on one circumferential side of the at least one gap from another portion of the sleeve wall on an opposite circumferential side of the at least one gap. The sleeve has flexibility in a circumferential direction greater than that of a sleeve without a gap extending radially through an entire wall of the sleeve at a transverse cross-section of the sleeve at every longitudinal location of the sleeve. The sleeve may include at least two circumferential segments in contact with an elastic element extending in a circumferential direction. Methods of forming a liner for a core barrel assembly, methods of building a coring tool with such a liner, and methods of coring a formation material are also disclosed.

    MECHANICAL CORE JAM INDICATOR FOR CORING TOOLS, CORING TOOLS INCLUDING SUCH CORE JAM INDICATORS, AND RELATED METHODS

    公开(公告)号:US20170306712A1

    公开(公告)日:2017-10-26

    申请号:US15646270

    申请日:2017-07-11

    Inventor: Thomas Uhlenberg

    CPC classification number: E21B25/00

    Abstract: Core jam indicators for use with coring tools include a plug coupled with an inner barrel and configured to selectively close the entrance of the inner barrel. The plug has at least one fluid port extending through a wall of the plug between an interior and an exterior of the plug. The mandrel at least partially covers the at least one fluid port of the plug in an activated position and the at least one fluid port is at least partially uncovered by the mandrel in a deactivated position. The mandrel is coupled to the inner barrel. A piston force acting on the mandrel resulting from a pressure difference above and below the mandrel acts over an area smaller than a maximum transverse cross-sectional area of the inner barrel. Coring tools include such core jam indicators. Components are provided and assembled to form such core jam indicators.

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