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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：US20180195348A1
公开(公告)日：2018-07-12
申请号：US15739703
申请日：2015-07-27
摘要： Methods, devices, and systems include a nested drill bit assembly, including an inner drill bit nested within an opening of an outer drill bit. The inner drill bit is removably coupled to the outer drill bit and the inner drill bit being co-axially positioned within the outer drill bit and accessible from a first end of the outer drill bit.
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公开(公告)号：US10711527B2
公开(公告)日：2020-07-14
申请号：US15739703
申请日：2015-07-27
摘要： Methods, devices, and systems include a nested drill bit assembly, including an inner drill bit nested within an opening of an outer drill bit. The inner drill bit is removably coupled to the outer drill bit and the inner drill bit being co-axially positioned within the outer drill bit and accessible from a first end of the outer drill bit.
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公开(公告)号：US20170328180A1
公开(公告)日：2017-11-16
申请号：US15529826
申请日：2014-12-29
CPC分类号： E21B41/0092 , E21B10/02 , E21B10/48 , E21B10/485 , E21B49/00
摘要： A method for designing a core bit to control and reduce the cutting forces acting on a core of rock is disclosed. The method includes generating a model of a core bit including a plurality of cutting elements on a plurality of blades. The method may additionally include simulating a coring operation with the model of the core bit. The method may further include calculating at least one force vector generated by at least one of the plurality of cutting elements on the model of the core bit during the coring operation. The method may further include determining at least one force acting on a core in the model of the core bit based on the at least one force vector and generating a design of the core bit based on the at least one force acting on the core.
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公开(公告)号：US20160194928A1
公开(公告)日：2016-07-07
申请号：US14911808
申请日：2013-09-13
IPC分类号： E21B25/06
摘要： A system for obtaining a core sample from a wellbore includes a housing having a core opening at a first end of the housing and an end wall at a second end of the housing. A balancing piston is positioned within the housing to define a sample chamber between the balancing piston and the core opening. An equalization chamber is defined between the balancing piston and the end wall. A core piston is sealingly positioned in the core opening.
摘要翻译： 用于从井筒获得芯样品的系统包括壳体，壳体在壳体的第一端处具有芯部开口，在壳体的第二端处具有端壁。 平衡活塞定位在壳体内以在平衡活塞和芯开口之间限定样品室。 在平衡活塞和端壁之间限定均衡室。 芯活塞被密封地定位在芯开口中。
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公开(公告)号：US20150361740A1
公开(公告)日：2015-12-17
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.
摘要翻译： 公开了一种使用取心工具从井眼获得岩心样品的方法。 该方法包括在井眼中提供外筒。 井筒和外筒至少部分地填充有钻井液。 该方法还包括将内筒部分地降低到钻井流体中并且用取芯流体移动内筒中的钻井流体。
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公开(公告)号：US20150115604A1
公开(公告)日：2015-04-30
申请号：US14360679
申请日：2013-07-18
发明人： Ludovic Delmar , Eric Fannes
CPC分类号： F16L21/06 , F16L21/08 , F16L37/138
摘要： Disclosed are systems and methods of coupling plain end pipes. One system includes a coupling sleeve having opposing upper and lower ends and a plurality of axially extending slots defined in each end, wherein the upper end is configured to receive an end of a first pipe and the lower end is configured to receive an end of a second pipe, an upper sliding ring disposed about the coupling sleeve and axially movable in a first direction to force the upper end into gripping engagement with an outer surface of the first pipe, and a lower sliding ring disposed about the coupling sleeve and axially movable in a second direction to force the lower end into gripping engagement with an outer surface of the second pipe.
摘要翻译： 公开了连接普通端管的系统和方法。 一个系统包括具有相对的上端和下端以及限定在每个端部中的多个轴向延伸槽的联接套筒，其中上端构造成容纳第一管的端部，并且下端构造成接收一端 第二管，上滑动环，其围绕所述联接套筒设置并且可沿第一方向轴向移动以迫使所述上端与所述第一管的外表面夹紧接合;以及下滑动环，所述下滑动环围绕所述联接套筒设置并且可轴向移动 第二方向迫使下端与第二管的外表面夹紧接合。
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公开(公告)号：US10954756B2
公开(公告)日：2021-03-23
申请号：US15529826
申请日：2014-12-29
摘要： A method for designing a core bit to control and reduce the cutting forces acting on a core of rock is disclosed. The method includes generating a model of a core bit including a plurality of cutting elements on a plurality of blades. The method may additionally include simulating a coring operation with the model of the core bit. The method may further include calculating at least one force vector generated by at least one of the plurality of cutting elements on the model of the core bit during the coring operation. The method may further include determining at least one force acting on a core in the model of the core bit based on the at least one force vector and generating a design of the core bit based on the at least one force acting on the core.
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公开(公告)号：US10584550B2
公开(公告)日：2020-03-10
申请号：US14911808
申请日：2013-09-13
摘要： A system for obtaining a core sample from a wellbore includes a housing having a core opening at a first end of the housing and an end wall at a second end of the housing. A balancing piston is positioned within the housing to define a sample chamber between the balancing piston and the core opening. An equalization chamber is defined between the balancing piston and the end wall. A core piston is sealingly positioned in the core opening.
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公开(公告)号：US10190709B2
公开(公告)日：2019-01-29
申请号：US14360679
申请日：2013-07-18
发明人： Ludovic Delmar , Eric Fannes
IPC分类号： F16L21/06 , F16L37/138 , F16L21/08
摘要： Disclosed are systems and methods of coupling plain end pipes. One system includes a coupling sleeve having opposing upper and lower ends and a plurality of axially extending slots defined in each end, wherein the upper end is configured to receive an end of a first pipe and the lower end is configured to receive an end of a second pipe, an upper sliding ring disposed about the coupling sleeve and axially movable in a first direction to force the upper end into gripping engagement with an outer surface of the first pipe, and a lower sliding ring disposed about the coupling sleeve and axially movable in a second direction to force the lower end into gripping engagement with an outer surface of the second pipe.
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