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公开(公告)号：US09228430B2
公开(公告)日：2016-01-05
申请号：US13585562
申请日：2012-08-14
申请人： John Rasmus , William Lesso , John James , Edward M. Tollefsen , Scott Paul , Amanda L. Weber , Marcus Turner
发明人： John Rasmus , William Lesso , John James , Edward M. Tollefsen , Scott Paul , Amanda L. Weber , Marcus Turner
CPC分类号： E21B47/10 , E21B47/06 , E21B49/005
摘要： A method evaluating a cuttings density while drilling a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval density may be measured while drilling and may be further processed to compute a cuttings density in the annulus. Moreover, changes in the computed interval density with time while drilling may be used as an indicator of a change in cuttings density.
摘要翻译： 在钻探地下井眼时评估钻屑密度的方法包括在井眼中获取第一和第二轴向间隔的压力测量值。 然后可以处理压力测量以获得测量位置之间的钻井液的间隔密度。 可以使用包括大量轴向间隔开的压力传感器（例如，四个或更多或甚至六个或更多）的工具串，其通过有线钻杆与表面处理器电连接，以获得对应于各种井筒间隔的多个间隔密度。 间隔密度可以在钻孔时测量，并且可以被进一步处理以计算环空中的切屑密度。 此外，钻孔时计算的间隔密度随时间的变化可用作切削密度变化的指标。
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公开(公告)号：US20100319998A1
公开(公告)日：2010-12-23
申请号：US12871454
申请日：2010-08-30
申请人： Iain Cooper , Claude Vercaemer , William Lesso , Benjamin Peter Jeffryes , Michael Charles Sheppard
发明人： Iain Cooper , Claude Vercaemer , William Lesso , Benjamin Peter Jeffryes , Michael Charles Sheppard
IPC分类号： E21B10/00
CPC分类号： E21B17/1014 , E21B33/138
摘要： A subpart of a drill string is described having an outer circumferential surface which is contoured and adapted to engage the wall of the borehole with a small angle of attack while exerting during rotary drilling operations an compacting pressure on mud cake and/or cuttings present in the annulus between the drill string and the borehole.
摘要翻译： 描述了一种钻柱的子部件，其具有外圆周表面，该外圆周表面具有轮廓并适于以小的迎角接触井眼的壁，同时在旋转钻井操作期间施加在泥饼和/或切屑中存在的压实压力 钻柱和钻孔之间的环形。
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公开(公告)号：US07810559B2
公开(公告)日：2010-10-12
申请号：US12277881
申请日：2008-11-25
申请人： Iain Cooper , Claude Vercaemer , William Lesso , Benjamin Peter Jeffryes , Michael Charles Sheppard
发明人： Iain Cooper , Claude Vercaemer , William Lesso , Benjamin Peter Jeffryes , Michael Charles Sheppard
CPC分类号： E21B17/1014 , E21B33/138
摘要： A subpart of a drill string is described having an outer circumferential surface which is contoured and adapted to engage the wall of the borehole with a small angle of attack while exerting during rotary drilling operations an compacting pressure on mud cake and/or cuttings present in the annulus between the drill string and the borehole.
摘要翻译： 描述了一种钻柱的子部件，其具有外圆周表面，该外圆周表面具有轮廓并适于以小的迎角接触井眼的壁，同时在旋转钻井操作期间施加在泥饼和/或切屑中存在的压实压力 钻柱和钻孔之间的环形。
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公开(公告)号：US20090095474A1
公开(公告)日：2009-04-16
申请号：US11871239
申请日：2007-10-12
申请人： William Lesso , Robert Utter
发明人： William Lesso , Robert Utter
摘要： A method of fracturing a formation while drilling a wellbore includes the steps of: providing a bottomhole assembly (“BHA”) having a reamer positioned above a pilot hole assembly; connecting the BHA to a drill string; actuating the BHA to drill a first wellbore section with the reamer and to drill a pilot hole with the pilot hole assembly; hydraulically sealing the pilot hole from the first wellbore section; and fracturing the formation proximate the pilot hole.
摘要翻译： 在钻井时破裂地层的方法包括以下步骤：提供具有位于导向孔组件上方的铰刀的井底组件（“BHA”）; 将BHA连接到钻柱; 致动BHA用铰刀钻第一井眼部分，并用导向孔组件钻一个导向孔; 从第一井筒部分液压密封导向孔; 并且在导向孔附近压裂地层。
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公开(公告)号：US07493948B2
公开(公告)日：2009-02-24
申请号：US10538863
申请日：2003-12-17
申请人： Iain Cooper , Claude Vercaemer , William Lesso , Benjamin Peter Jeffryes , Michael Charles Sheppard
发明人： Iain Cooper , Claude Vercaemer , William Lesso , Benjamin Peter Jeffryes , Michael Charles Sheppard
IPC分类号： E21B17/10
CPC分类号： E21B17/1014 , E21B33/138
摘要： The present invention generally relates to an apparatus and methods for improving the stability of a wellbore during drilling operations using a rotary drill string. More specifically, embodiments of the present invention provide systems and methods for enhancing the performance of the filter or mud cake layer on the wall of the wellbore as a protective and isolating layer.
摘要翻译： 本发明总体上涉及一种用于在使用旋转钻柱的钻井操作期间改善井眼的稳定性的装置和方法。 更具体地，本发明的实施例提供了用于提高作为保护和隔离层的井眼的壁上的过滤器或泥饼层的性能的系统和方法。
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公开(公告)号：US20060144620A1
公开(公告)日：2006-07-06
申请号：US10538863
申请日：2003-12-17
CPC分类号： E21B17/1014 , E21B33/138
摘要： A subpart (430) of a drill string (211) is described having an outer circumferential surface which is contoured and adapted to engage the wall of the borehole with a small angle of attack while exerting during rotary drilling operations an compacting pressure on mud cake and/or cuttings present in the annulus between the drill string and the borehole.
摘要翻译： 描述了一种钻柱（211）的子部件（430），其具有外圆周表面，该外圆周表面的轮廓和适于在小的冲击角度下以小的迎角接合井眼的壁，同时在旋转钻井操作期间在泥饼上施加压实压力， /或存在于钻柱和钻孔之间的环中的切屑。
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公开(公告)号：US20130054146A1
公开(公告)日：2013-02-28
申请号：US13585562
申请日：2012-08-14
申请人： John Rasmus , William Lesso , John James , Edward M. Tollefsen , Scott Paul , Amanda L. Weber , Marcus Turner
发明人： John Rasmus , William Lesso , John James , Edward M. Tollefsen , Scott Paul , Amanda L. Weber , Marcus Turner
CPC分类号： E21B47/10 , E21B47/06 , E21B49/005
摘要： A method evaluating a cuttings density while drilling a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval density may be measured while drilling and may be further processed to compute a cuttings density in the annulus. Moreover, changes in the computed interval density with time while drilling may be used as an indicator of a change in cuttings density.
摘要翻译： 在钻探地下井眼时评估钻屑密度的方法包括在井眼中获取第一和第二轴向间隔的压力测量值。 然后可以处理压力测量以获得测量位置之间的钻井液的间隔密度。 可以使用包括大量轴向间隔开的压力传感器（例如，四个或更多或甚至六个或更多）的工具串，其通过有线钻杆与表面处理器电连接，以获得对应于各种井筒间隔的多个间隔密度。 间隔密度可以在钻孔时测量，并且可以被进一步处理以计算环空中的切屑密度。 此外，钻孔时计算的间隔密度随时间的变化可用作切削密度变化的指标。
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公开(公告)号：US07128167B2
公开(公告)日：2006-10-31
申请号：US10400125
申请日：2003-03-26
申请人： Jonathan Dunlop , William Lesso , Walt Aldred , Richard Meehan , Matthew Richard Orton , William John Fitzgerald
发明人： Jonathan Dunlop , William Lesso , Walt Aldred , Richard Meehan , Matthew Richard Orton , William John Fitzgerald
IPC分类号： E21B44/00
摘要： A method and system is disclosed for automatically detecting the state of a drilling rig during the drilling process of a wellbore. Two or more, but preferably four independent input data channels are received, each input data channel representing a series of measurements made over time during the drilling process. Based on the input channels the most likely state of the drilling rig is detected from at least three possible rig states. The detection method is preferably probabilistic and even more preferably based on particle filtering techniques. The preferred systems and methods disclosed are also capable of detecting events and displaying or notifying drilling personnel of the detected events and suggesting corrective action.
摘要翻译： 公开了一种用于在钻井的钻井过程中自动检测钻机的状态的方法和系统。 两个或多个，但是优选地接收四个独立的输入数据信道，每个输入数据信道表示在钻井过程中随时间推移的一系列测量。 根据输入通道，从至少三个可能的钻机状态检测钻机最可能的状态。 检测方法优选是概率性的，甚至更优选地基于颗粒过滤技术。 所公开的优选系统和方法还能够检测事件并显示或通知钻探人员检测到的事件并提出纠正措施。
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公开(公告)号：US20130090855A1
公开(公告)日：2013-04-11
申请号：US13585628
申请日：2012-08-14
申请人： John Rasmus , William Lesso , John James
发明人： John Rasmus , William Lesso , John James
IPC分类号： E21B47/06
CPC分类号： E21B47/06 , E21B21/08 , E21B34/06 , E21B43/12 , E21B47/04 , E21B47/10 , E21B49/003 , E21B49/087 , G01V3/38
摘要： A method for evaluating inflow or outflow in a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval density may be measured during static conditions or while drilling and may be further processed to compute a density of an inflow constituent in the annulus. Changes in the computed interval density with time may be used as an indicator of either an inflow event or an outflow event.
摘要翻译： 一种用于评估地下井眼中的流入或流出的方法包括获取井筒中的第一和第二轴向间隔的压力测量值。 然后可以处理压力测量以获得测量位置之间的钻井液的间隔密度。 可以使用包括大量轴向间隔开的压力传感器（例如，四个或更多或甚至六个或更多）的工具串，其通过有线钻杆与表面处理器电连接，以获得对应于各种井筒间隔的多个间隔密度。 间隔密度可以在静态条件下或在钻井时测量，并且可以进一步处理以计算环空中的流入成分的密度。 计算的间隔密度随时间的变化可用作流入事件或流出事件的指标。
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公开(公告)号：US20130090854A1
公开(公告)日：2013-04-11
申请号：US13585601
申请日：2012-08-14
申请人： John Rasmus , William Lesso , John James
发明人： John Rasmus , William Lesso , John James
摘要： A method identifying a wellbore volume change while drilling a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The wellbore volume change may include, for example, a borehole washout or a borehole pack-off. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval densities may be measured while drilling and may be further evaluated as an indicator of a wellbore volume change.
摘要翻译： 在钻探地下井眼时识别井眼体积变化的方法包括在井眼中获取第一和第二轴向间隔的压力测量值。 井眼体积变化可以包括例如钻孔冲洗或钻孔包装。 然后可以处理压力测量以获得测量位置之间的钻井液的间隔密度。 可以使用包括大量轴向间隔开的压力传感器（例如，四个或更多或甚至六个或更多）的工具串，其通过有线钻杆与表面处理器电连接，以获得对应于各种井筒间隔的多个间隔密度。 间隔密度可以在钻井时测量，并可进一步评估为井眼体积变化的指标。
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