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公开(公告)号：US20170356284A1
公开(公告)日：2017-12-14
申请号：US15537110
申请日：2014-12-17
发明人： Daniel M. Veeningen
摘要： A method comprises measuring a first external pressure within an annulus formed between a wellbore and a drill string disposed therein, where the first external pressure is measured by a first external pressure sensor. A fluid is pumped through the drill string into the annulus so as to move any cuttings in the annulus above the first external pressure sensor. A first internal pressure is measured within the drill string by a first internal pressure sensor. The first external pressure sensor is disposed between the first internal pressure sensor and a bottom of the wellbore.
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公开(公告)号：US09732573B2
公开(公告)日：2017-08-15
申请号：US14588795
申请日：2015-01-02
发明人： Mark Adam
CPC分类号： E21B23/004 , E21B23/04 , E21B34/14 , E21B47/12
摘要： The disclosure relates to a downhole activation assembly for activating a downhole component of a downhole tool positionable in a wellbore penetrating a subterranean formation. The activation assembly includes a housing operatively connectable to the downhole tool, a piston slidably positionable in the housing with a chamber defined therebetween, and a valve. The piston has a flow channel therethrough. The valve is positionable about the flow channel of the piston, the valve comprising a fixed plate and a rotatable plate. The rotatable plate is movable about the fixed plate to define a variable bore to selectively restrict flow through the flow channel and to vary pressure about the piston whereby the piston is selectively moved to shift the downhole component between activation positions.
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公开(公告)号：US09631435B2
公开(公告)日：2017-04-25
申请号：US14101795
申请日：2013-12-10
摘要： A fixed cutter drill bit for drilling a borehole in earthen formations includes a blank assembly and a matrix crown fixably mounted to the blank assembly. The blank assembly includes an annular mandrel and a plurality of elongate studs fixably coupled to the mandrel. The mandrel has a first end distal the crown and a second end engaging the crown. In addition, the mandrel includes a plurality of bores extending axially from the second end. Each elongate stud has a first end disposed within one of the bores and a second end disposed in the crown distal the mandrel.
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公开(公告)号：US09593547B2
公开(公告)日：2017-03-14
申请号：US13954793
申请日：2013-07-30
IPC分类号： E21B28/00
CPC分类号： E21B28/00
摘要： A shock assembly for use with a motion tool deployable into a wellbore by a conveyance. The motion tool includes a mandrel operatively connectable to the conveyance or the motion tool, a housing operatively connectable to the motion tool or the conveyance (the housing having an opening to slidingly receive the mandrel and including a first and a second spring portion), a first spring slidably positionable in the first spring portion and having a first spring stiffness, and a second spring slidably positionable in the second spring portion having a second spring stiffness. The second spring stiffness being less than the first spring stiffness such that the first and second springs selectively engage as the housing slidingly moves about the mandrel in response to forces applied to the system to selectively restrict movement between the mandrel and the housing whereby the motion tool is vibrated.
摘要翻译： 一种用于通过运输工具可部署到井筒中的运动工具使用的冲击组件。 运动工具包括可操作地连接到运送工具或运动工具的心轴，可操作地连接到运动工具或输送器的壳体（壳体具有滑动地容纳心轴并包括第一和第二弹簧部分的开口）， 第一弹簧可滑动地定位在第一弹簧部分中并且具有第一弹簧刚度，以及可滑动地定位在第二弹簧部分中的具有第二弹簧刚度的第二弹簧。 第二弹簧刚度小于第一弹簧刚度，使得当壳体响应于施加到系统的力滑动地围绕心轴移动时，第一和第二弹簧选择性地接合，以选择性地限制心轴和壳体之间的运动，由此运动工具 被振动。
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公开(公告)号：US20170030144A1
公开(公告)日：2017-02-02
申请号：US15302445
申请日：2015-04-16
发明人： Reza Rahmani
IPC分类号： E21B10/567
CPC分类号： E21B10/5673 , E21B10/5676
摘要： A cutting element for a drill bit is advanceable into a subterranean formation to form a wellbore. The cutting element includes an element body having a face at an end thereof, and a ridge. The element body has a face at an end thereof. The face has a ramp and a pair of side regions thereon. The ramp has a curved edge along a periphery of the face and two sides. Each of the two sides extends from opposite ends of the curved edge and converges at a location along the face. The face has a chamfer along a peripheral edge thereof. The ridge is between the chamfer and the location. Each of the pair of side regions is positioned on opposite sides of the ridge and extends between the periphery, the ridge, and one of the two sides of the ramp whereby the chamfer engages a wall of the wellbore and extrudate is drawn along the pair of side regions.
摘要翻译： 用于钻头的切割元件可推进到地下地层中以形成井筒。 切割元件包括在其端部具有表面的元件主体和脊。 元件主体的一端具有一个面。 面上有一个斜面和一对侧面区域。 斜坡沿着面的周边和两侧具有弯曲的边缘。 两侧中的每一个从弯曲边缘的相对端延伸并且在沿着面部的位置处会聚。 该面沿其周缘具有倒角。 脊在倒角和位置之间。 所述一对侧区域中的每一个位于所述脊的相对侧上，并且在所述周边，所述脊与所述斜面的两侧之一之间延伸，由此所述倒角与所述井筒的壁接合，并且所述挤出物沿着所述一对 边区域。
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公开(公告)号：US09364936B2
公开(公告)日：2016-06-14
申请号：US13271415
申请日：2011-10-12
申请人： Harold A. Sreshta
发明人： Harold A. Sreshta
IPC分类号： B22F3/10 , B24D3/06 , C22C1/00 , E21B10/43 , B24D18/00 , B24D99/00 , B22F3/26 , C22C29/08 , C22C1/05 , C22C1/10 , B22F5/00
CPC分类号： B24D3/06 , B22F3/26 , B22F2005/001 , B24D18/0009 , B24D99/005 , C22C1/00 , C22C1/051 , C22C1/1036 , C22C29/08 , E21B10/43
摘要： Composite materials for use with a drill bit for drilling a borehole in earthen formations. The composite material comprises a first pre-infiltrated hardphase constituent and a second pre-infiltrated hardphase constituent. The second pre-infiltrated hardphase constituent is a carbide which comprises at least 0.5 weight % of a binder and at least about 1% porosity. The composite material further comprises an infiltrant.
摘要翻译： 复合材料与钻头一起用于在地层中钻孔。 复合材料包括第一预渗透硬相组分和第二预渗透硬相组分。 第二预渗透硬相组分是包含至少0.5重量％的粘合剂和至少约1％孔隙率的碳化物。 复合材料还包括浸渗剂。
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公开(公告)号：US20150233188A1
公开(公告)日：2015-08-20
申请号：US14427978
申请日：2013-09-25
申请人： Charles Leonard WRIGHT, II , Harold A. SRESHTA , Jiinjen Albert SUE , NATIONAL OILWELL DHT, L.P.
IPC分类号： E21B10/573 , E21B7/04 , E21B10/43
CPC分类号： E21B10/5735 , C04B35/117 , C04B35/488 , C04B35/803 , C04B2235/5244 , C04B2235/5276 , E21B7/046 , E21B10/006 , E21B10/43 , E21B10/46 , E21B10/55 , E21B29/06 , E21B2010/425
摘要： A drill bit for cutting through a downhole metal structure includes a bit body having a central axis and a bit face. The bit body is configured to rotate about the central axis in a cutting direction. In addition, the bit includes a cutting structure disposed on the bit face. The cutting structure includes a plurality of circumferentially spaced blades and a plurality of primary cutter elements mounted to each blade. Each primary cutter element has a forward-facing primary cutting face. Each primary cutter element is made of a whisker ceramic composite.
摘要翻译： 用于切割井下金属结构的钻头包括具有中心轴线和钻头面的钻头体。 钻头体被构造成围绕切割方向的中心轴线旋转。 此外，该钻头包括设置在钻头面上的切割结构。 切割结构包括多个周向间隔开的叶片和安装到每个叶片的多个主切割器元件。 每个主切割元件具有前向的主切割面。 每个主切割元件由晶须陶瓷复合材料制成。
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公开(公告)号：US08919463B2
公开(公告)日：2014-12-30
申请号：US13279553
申请日：2011-10-24
申请人： Deepthi Raj Setlur , Michael D. Hughes , Mark Jonathan Francis , Harold A. Sreshta , Guodong Zhan , Russell C. Gilleylen , JiinJen Albert Sue
发明人： Deepthi Raj Setlur , Michael D. Hughes , Mark Jonathan Francis , Harold A. Sreshta , Guodong Zhan , Russell C. Gilleylen , JiinJen Albert Sue
CPC分类号： E21B10/567 , B22F3/105 , B22F3/16 , B22F7/02 , B24D18/0009 , C22C19/07 , E21B10/573 , Y10T428/12174 , Y10T428/12576
摘要： A polycrystalline-diamond cutting element for a drill bit of a downhole tool. The cutting element includes a substrate and a diamond table bonded to the substrate. The diamond table includes a diamond filler with at least one leached polycrystalline diamond segment packed therein along at least one working surface thereof. The cutting element may be formed by positioning the diamond table on the substrate and bonding the diamond table onto the substrate such that the polycrystalline diamond segment is positioned along at least one working surface of the diamond table. A spark plasma sintering or double press operation may be used to bond the diamond table onto the substrate.
摘要翻译： 用于井下工具的钻头的多晶金刚石切割元件。 切割元件包括基底和结合到基底的金刚石台。 钻石台包括金刚石填料，其中至少一个浸出的多晶金刚石段沿其至少一个工作表面装入其中。 切割元件可以通过将金刚石台定位在基底上并将金刚石台结合到基底上而形成，使得多晶金刚石段沿钻石台的至少一个工作表面定位。 可以使用火花等离子体烧结或双压操作将金刚石台结合到基底上。
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公开(公告)号：US20140216761A1
公开(公告)日：2014-08-07
申请号：US14165202
申请日：2014-01-27
发明人： Khoi Trinh
IPC分类号： E21B34/14
CPC分类号： E21B23/04 , E21B10/322
摘要： A downhole activation assembly for activating a downhole component of a downhole tool positionable in a wellbore penetrating a subterranean formation. The activation assembly includes a housing operatively connectable to the downhole tool, a spring-loaded sleeve, and a ball catcher. The sleeve slidably positionable in the housing, and having a flow channel therethrough and an outer surface defining a chamber between the sleeve and the housing. The sleeve having inlets therethrough about a sleeve end thereof to permit fluid from the flow channel to pass therethrough. The ball catcher slidably positionable in the housing, and having a catcher end engageable with the sleeve end to selectively divert the fluid thereabout and a ball seat therein to receivingly engage a ball passing through the sleeve whereby the ball catcher selectively moves the downhole component between activation positions.
摘要翻译： 一种井下活化组件，用于激活定位在穿透地下地层的井眼中的井下工具的井下部件。 激活组件包括可操作地连接到井下工具的壳体，弹簧加载的套筒和球捕获器。 所述套筒可滑动地定位在所述壳体中，并且具有穿过其的流动通道和限定所述套筒和所述壳体之间的室的外表面。 套筒具有穿过其中的套筒端部的入口，以允许来自流动通道的流体通过。 球捕获器可滑动地定位在壳体中，并且具有捕获器端部，其可与套筒端部接合以选择性地将其周围的流体转向，并且其中的球座接收地接合穿过套筒的球，由此，球捕获器选择性地在活塞之间移动井下部件 职位
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公开(公告)号：US20130092450A1
公开(公告)日：2013-04-18
申请号：US13271415
申请日：2011-10-12
申请人： Harold A. SRESHTA
发明人： Harold A. SRESHTA
CPC分类号： B24D3/06 , B22F3/26 , B22F2005/001 , B24D18/0009 , B24D99/005 , C22C1/00 , C22C1/051 , C22C1/1036 , C22C29/08 , E21B10/43
摘要： Composite materials for use with a drill bit for drilling a borehole in earthen formations. The composite material comprises a first pre-infiltrated hardphase constituent and a second pre-infiltrated hardphase constituent. The second pre-infiltrated hardphase constituent is a carbide which comprises at least 0.5 weight % of a binder and at least about 1% porosity. The composite material further comprises an infiltrant.
摘要翻译： 复合材料与钻头一起用于在地层中钻孔。 复合材料包括第一预渗透硬相组分和第二预渗透硬相组分。 第二预渗透硬相组分是包含至少0.5重量％的粘合剂和至少约1％孔隙率的碳化物。 复合材料还包括浸渗剂。
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