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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：US20120091329A1
公开(公告)日：2012-04-19
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：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：US20120010819A1
公开(公告)日：2012-01-12
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：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：US20120068060A1
公开(公告)日：2012-03-22
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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7.发明申请公开(公告)号：US20120059587A1
公开(公告)日：2012-03-08
申请号：US13040332
申请日：2011-03-04
申请人： Roger Marsh , David M. Chace , Rafay Z. Ansari , Feyzi Inanc
发明人： Roger Marsh , David M. Chace , Rafay Z. Ansari , Feyzi Inanc
摘要： A method of estimating fluid composition in an earth formation includes: generating at least one pulsed neutron measurement by a pulsed neutron tool; estimating a pulsed neutron fluid saturation by analyzing the at least one pulsed neutron measurement via a pulsed neutron model of the earth formation, the pulsed neutron model including expected pulsed neutron measurements relative to selected fluid composition and properties; comparing the pulsed neutron fluid saturation to a reference fluid saturation estimated via a downhole tool; adjusting the pulsed neutron model to at least substantially eliminate a difference between the pulsed neutron fluid saturation and the reference fluid saturation by adjusting at least one of the selected fluid composition and the selected fluid properties; and estimating at least one of the fluid composition and the fluid properties based on the adjusted model.
摘要翻译： 估计地层中的流体组成的方法包括：通过脉冲中子工具产生至少一个脉冲中子测量; 通过经由地层的脉冲中子模型分析至少一个脉冲中子测量来估计脉冲中子液饱和度，所述脉冲中子模型包括相对于所选择的流体组成和性质的期望的脉冲中子测量; 将脉冲中子液饱和度与通过井下工具估计的参考流体饱和度进行比较; 通过调节所选择的流体组合物和所选择的流体性质中的至少一种，调节脉冲中子模型以至少基本上消除脉冲中子液饱和度与参考流体饱和度之间的差异; 以及基于经调整的模型估计流体组成和流体特性中的至少一个。
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8.发明授权公开(公告)号：US08903658B2
公开(公告)日：2014-12-02
申请号：US13040332
申请日：2011-03-04
申请人： Roger Marsh , David M. Chace , Rafay Z. Ansari , Feyzi Inanc
发明人： Roger Marsh , David M. Chace , Rafay Z. Ansari , Feyzi Inanc
摘要： A method of estimating fluid composition in an earth formation includes: generating at least one pulsed neutron measurement by a pulsed neutron tool; estimating a pulsed neutron fluid saturation by analyzing the at least one pulsed neutron measurement via a pulsed neutron model of the earth formation, the pulsed neutron model including expected pulsed neutron measurements relative to selected fluid composition and properties; comparing the pulsed neutron fluid saturation to a reference fluid saturation estimated via a downhole tool; adjusting the pulsed neutron model to at least substantially eliminate a difference between the pulsed neutron fluid saturation and the reference fluid saturation by adjusting at least one of the selected fluid composition and the selected fluid properties; and estimating at least one of the fluid composition and the fluid properties based on the adjusted model.
摘要翻译： 估计地层中的流体组成的方法包括：通过脉冲中子工具产生至少一个脉冲中子测量; 通过经由地层的脉冲中子模型分析至少一个脉冲中子测量来估计脉冲中子液饱和度，所述脉冲中子模型包括相对于所选择的流体组成和性质的期望的脉冲中子测量; 将脉冲中子液饱和度与通过井下工具估计的参考流体饱和度进行比较; 通过调节所选择的流体组合物和所选择的流体性质中的至少一种，调节脉冲中子模型以至少基本上消除脉冲中子液饱和度与参考流体饱和度之间的差异; 以及基于经调整的模型估计流体组成和流体特性中的至少一个。
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公开(公告)号：US20100252724A1
公开(公告)日：2010-10-07
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：US20100252726A1
公开(公告)日：2010-10-07
申请号：US12755701
申请日：2010-04-07
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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