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公开(公告)号：US07893398B2
公开(公告)日：2011-02-22
申请号：US12184762
申请日：2008-08-01
IPC分类号： G01V5/08
CPC分类号： G01V5/06
摘要： A method for estimating information about a formation, the method including obtaining a first set of radiation data substantially influenced by the formation and non-formation materials; obtaining a second set of radiation data substantially influenced by the non-formation materials; and correcting the first set of radiation data with the second set of radiation data to provide corrected formation radiation data.
摘要翻译： 一种用于估计关于地层的信息的方法，所述方法包括获得基本上受到形成和非形成材料影响的第一组辐射数据; 获得基本上受非形成材料影响的第二组辐射数据; 以及用所述第二组辐射数据校正所述第一组辐射数据以提供校正的地层辐射数据。
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公开(公告)号：US08525103B2
公开(公告)日：2013-09-03
申请号：US13033775
申请日：2011-02-24
申请人： David M. Chace , Rafay Z. Ansari , Elton Frost, Jr. , Feyzi Inanc , W. Allen Gilchrist, Jr. , Randy L. Evans
发明人： David M. Chace , Rafay Z. Ansari , Elton Frost, Jr. , Feyzi Inanc , W. Allen Gilchrist, Jr. , Randy L. Evans
IPC分类号： G01V5/10
CPC分类号： G01V5/04
摘要： A method for estimating a property of an earth formation, the method includes: conveying a carrier through a borehole penetrating the earth formation; irradiating the formation with neutrons from a neutron source disposed at the carrier; detecting a first signal from the formation due to the irradiating using a first radiation detector, the first signal being related to a saturation of a fluid in the formation; detecting a second signal from an element in the formation due to the irradiating using a second radiation detector, the second signal being related to an element emitting the second signal in the formation; and estimating the property from the first signal and the second signal.
摘要翻译： 一种用于估计地层的性质的方法，所述方法包括：通过穿过所述地层的钻孔输送载体; 用设置在载体上的中子源用中子照射地层; 由于使用第一辐射检测器的照射，检测来自地层的第一信号，第一信号与地层中的流体饱和有关; 由于使用第二辐射检测器的照射，从地层中的元件检测第二信号，所述第二信号与在地层中发射第二信号的元件有关; 以及从第一信号和第二信号估计特性。
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公开(公告)号：US08436294B2
公开(公告)日：2013-05-07
申请号：US12755713
申请日：2010-04-07
CPC分类号： G01V5/125
摘要： A method for performing a measurement of a property downhole includes: using an instrument including an irradiator including a pulsed neutron generator, a moderator and a material including a high cross section for capturing thermal neutrons downhole, generating inelastic gamma photons from neutron interactions in the moderator and generating capture gamma photons from neutron interactions in the material; irradiating sub-surface materials proximate to the instrument with the inelastic gamma photons and the capture gamma photons; detecting radiation scattered by the sub-surface materials; and estimating the property according to the detected radiation. A system is also disclosed.
摘要翻译： 用于进行井下特性的测量的方法包括：使用包括辐射器的仪器，所述辐照器包括脉冲中子发生器，减速器和包括用于在井下捕获热中子的高横截面的材料，从主体中的中子相互作用产生非弹性γ光子 并从材料中的中子相互作用产生捕获伽马光子; 用非弹性γ光子和捕获γ光子照射靠近仪器的子表面材料; 检测由下表面材料散射的辐射; 并根据检测到的辐射估计该性质。 还公开了一种系统。
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公开(公告)号：US09086500B2
公开(公告)日：2015-07-21
申请号：US12984312
申请日：2011-01-04
摘要： A method of estimating at least one property of an earth formation includes: constructing a matrix model of a formation; constructing a shale model of the formation, the shale model including an estimation of a concentration of at least one trace element; combining the first model and the second model to generate a formation model; and comparing measured pulsed neutron data with the mixed model to estimate the at least one property.
摘要翻译： 估计地层的至少一个属性的方法包括：构造地层的矩阵模型; 构造所述地层的页岩模型，所述页岩模型包括对至少一种微量元素的浓度的估计; 结合第一模型和第二模型来生成地层模型; 并将测量的脉冲中子数据与混合模型进行比较以估计至少一种性质。
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公开(公告)号：US07482579B2
公开(公告)日：2009-01-27
申请号：US11686442
申请日：2007-03-15
IPC分类号： G01V5/06
CPC分类号： G01V5/06
摘要： A method for measuring radiation, the method includes selecting at least two radiation detectors, each detector having a spatial resolution that differs from the spatial resolution of other detectors; measuring the radiation with the detectors; and combining a response from at least two of the detectors to produce a composite response exhibiting a spatial resolution.
摘要翻译： 一种用于测量辐射的方法，所述方法包括选择至少两个辐射检测器，每个检测器具有不同于其它检测器的空间分辨率的空间分辨率; 用检测器测量辐射; 以及组合来自至少两个所述检测器的响应以产生呈现空间分辨率的复合响应。
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6.发明授权Method for correcting NMR and nuclear logs in formate mud filtrate invaded formations 有权用于校正甲酸泥滤液侵入地层中NMR和核原子的方法公开(公告)号：US08866475B2
公开(公告)日：2014-10-21
申请号：US13289094
申请日：2011-11-04
CPC分类号： G01V3/32 , E21B49/08 , G01N24/081
摘要： A method of calculating a porosity of a geological formation includes determining a bulk pore volume and a movable fluid pore volume in the geological formation in which drilling mud including a mud filtrate is introduced, calculating a porosity of the formation based on a bulk pore volume, and correcting the porosity based on the movable fluid volume in the geological formation.
摘要翻译： 计算地质构造孔隙度的方法包括确定地质构造中的体积孔体积和可移动流体孔隙体积，其中引入包括泥浆滤液的钻井泥浆，基于体积孔体积计算地层的孔隙率， 并且基于地质层中的可移动流体体积校正孔隙率。
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公开(公告)号：US08502135B2
公开(公告)日：2013-08-06
申请号：US13071164
申请日：2011-03-24
IPC分类号： G01V5/10
CPC分类号： G01V5/125
摘要： A method for estimating a parameter of interest of an earth formation having a fluid contained in pores of the earth formation, the method includes: conveying a carrier through a borehole penetrating the earth formation; irradiating the earth formation with neutrons from a neutron source disposed at the carrier; measuring radiation emitted from the earth formation resulting from the irradiating using at least one detector; calculating or determining a mathematical parameter from radiation measured by the at least one detector; predicting values of the mathematical parameter over a range of values of an earth formation property; and comparing the mathematical parameter to the predicted values to estimate the parameter of interest.
摘要翻译： 一种用于估计具有包含在地层孔隙中的流体的地层的感兴趣参数的方法，所述方法包括：通过穿过地层的钻孔输送载体; 用设置在载体上的中子源用中子照射地球; 测量由使用至少一个检测器的照射产生的地球发射的辐射; 由所述至少一个检测器测量的辐射计算或确定数学参数; 预测地球化特性值范围内的数学参数的值; 并将数学参数与预测值进行比较以估计感兴趣的参数。
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公开(公告)号：US08440961B2
公开(公告)日：2013-05-14
申请号：US12755701
申请日：2010-04-07
IPC分类号： G01V5/10
CPC分类号： G01V5/125
摘要： An instrument for performing measurements downhole, includes an irradiator oriented to irradiate sub-surface materials surrounding the instrument, the irradiator including at least one neutron source disposed proximate to a moderator for providing a source of inelastic gamma photons and also disposed proximate to a material for providing a source of capture gamma photons; and a first detector and a second detector, each detector for detecting gamma rays and oriented in a relationship to the irradiator for receiving gamma photons from at least one of the irradiator and the formation. A method for irradiating sub-surface materials is provided.
摘要翻译： 用于在井下进行测量的仪器包括照射器，其被定向成照射围绕所述仪器的次表面材料，所述辐射器包括至少一个靠近所述调节器设置的中子源，用于提供非弹性γ光子源，并且还设置在靠近材料的位置 提供捕获伽马光子的来源; 以及第一检测器和第二检测器，每个检测器用于检测伽马射线并且与辐照器的关系定向，用于接收来自辐照器和地层中的至少一个的伽马光子。 提供一种照射次表面材料的方法。
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