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公开(公告)号：US5571962A
公开(公告)日：1996-11-05
申请号：US106368
申请日：1993-08-13
CPC分类号： E21B49/005 , E21B21/065 , E21B47/04
摘要： A method and apparatus for identifying cuttings from a wellbore is disclosed. The cuttings can be identified by measuring emissions such as alpha, beta, or gamma particles which emanate from the cuttings. A continuous wellbore profile of the alpha or beta emissions can be constructed by measuring the emissions from cuttings taken from different locations in the wellbore, and by documenting such emissions. The effects of cuttings dispersion caused by differing particle sizes can be reduced by collecting cuttings of an intermediate size for analysis. The profile of the intermediate size cuttings can be compared with a well log to identify the original elevation of the cuttings within the wellbore.
摘要翻译： 公开了一种用于从井眼识别切屑的方法和设备。 可以通过测量排放物来识别切屑，例如从切屑发出的α，β或γ粒子。 可以通过测量从井眼不同位置取得的切屑的排放量以及通过记录这种排放来构建α或β排放的连续井筒剖面。 通过收集用于分析的中等尺寸的切屑可以减少由不同粒径引起的切屑分散的影响。 可以将中等尺寸切屑的轮廓与井测井进行比较，以确定井眼内的切屑的原始高程。
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2.发明授权Method for determining pore pressure and horizontal effective stress from overburden and effective vertical stresses 失效用于确定上覆层和有效垂直应力的孔隙压力和水平有效应力的方法
公开(公告)号：US4981037A
公开(公告)日：1991-01-01
申请号：US868317
申请日：1986-05-28
CPC分类号： E21B47/06 , E21B21/08 , E21B49/006
摘要： The porosity-effective stress relationship, which is a fuction of lithology, is used to calculate total overburden stress, vertical effective stress, horizontal effective stress and pore pressure using well log data. The log data can be either real time data derived from measurement-while-drilling equipment or open hole wireline logging equipment.
摘要翻译： 孔隙度有效的应力关系是岩性的一个函数，用于使用测井数据计算总覆盖应力，垂直有效应力，水平有效应力和孔隙压力。 日志数据可以是来自测井钻井设备或露天电缆测井设备的实时数据。
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公开(公告)号：US07926588B2
公开(公告)日：2011-04-19
申请号：US12337198
申请日：2008-12-17
申请人： Arnis Judzis , Alan D. Black , Sidney J. Green , Homer A. Robertson , Ronald G. Bland , David Alexander Curry , Leroy W. Ledgerwood, III
发明人： Arnis Judzis , Alan D. Black , Sidney J. Green , Homer A. Robertson , Ronald G. Bland , David Alexander Curry , Leroy W. Ledgerwood, III
摘要： To improve drilling performance, a drilling fluid is selected based on one or more criteria and to have at least one target characteristic. Drilling equipment is used to drill a wellbore, and the selected drilling fluid is provided into the wellbore during drilling with the drilling equipment. The at least one target characteristic of the drilling fluid includes an ability of the drilling fluid to penetrate into formation cuttings during drilling to weaken the formation cuttings.
摘要翻译： 为了提高钻井性能，基于一个或多个标准来选择钻井液，并且具有至少一个目标特性。 钻井设备用于钻井井，并在钻井设备的钻井过程中将选定的钻井液提供到钻井中。 钻井液的至少一个目标特征包括钻井液在钻井期间渗入地层钻屑的能力，以削弱地层钻屑。
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公开(公告)号：US20090152007A1
公开(公告)日：2009-06-18
申请号：US12337198
申请日：2008-12-17
申请人： Arnis Judzis , Alan D. Black , Sidney J. Green , Homer A. Robertson , Ronald G. Bland , David Alexander Curry , Leroy W. Ledgerwood, III
发明人： Arnis Judzis , Alan D. Black , Sidney J. Green , Homer A. Robertson , Ronald G. Bland , David Alexander Curry , Leroy W. Ledgerwood, III
摘要： To improve drilling performance, a drilling fluid is selected based on one or more criteria and to have at least one target characteristic. Drilling equipment is used to drill a wellbore, and the selected drilling fluid is provided into the wellbore during drilling with the drilling equipment. The at least one target characteristic of the drilling fluid includes an ability of the drilling fluid to penetrate into formation cuttings during drilling to weaken the formation cuttings.
摘要翻译： 为了提高钻井性能，基于一个或多个标准来选择钻井液，并且具有至少一个目标特性。 钻井设备用于钻井井，并在钻井设备的钻井过程中将选定的钻井液提供到钻井中。 钻井液的至少一个目标特征包括钻井液在钻井期间渗入地层钻屑的能力，以削弱地层钻屑。
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