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公开(公告)号：US20200158907A1
公开(公告)日：2020-05-21
申请号：US16198117
申请日：2018-11-21
摘要： A method for transforming an earth formation and/or production equipment based on correcting nuclear magnetic resonance (NMR) data to account for partially water-saturated rock includes: receiving NMR logging data having echo-trains for an earth formation; inverting the echo-trains to provide transverse relaxation time constant (T2) distributions for various components of fluid in the earth formation; substituting a T2 distribution for mobile water of fully water-saturated rock for a T2 distribution for mobile water of partially water-saturated rock based on values of the mobile water T2 distribution of partially water-saturated rock and a total porosity constraint; summing the T2 distribution for mobile water of fully water-saturated rock and a T2 distribution for an immobile water component of the fluid to provide a T, distribution for fully water-saturated rock; and transforming the earth formation and/or the production equipment based on a parameter derived from the T2 distribution for fully water-saturated rock.
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公开(公告)号：US11092714B2
公开(公告)日：2021-08-17
申请号：US16198117
申请日：2018-11-21
摘要： A method for transforming an earth formation and/or production equipment based on correcting nuclear magnetic resonance (NMR) data to account for partially water-saturated rock includes: receiving NMR logging data having echo-trains for an earth formation; inverting the echo-trains to provide transverse relaxation time constant (T2) distributions for various components of fluid in the earth formation; substituting a T2 distribution for mobile water of fully water-saturated rock for a T2 distribution for mobile water of partially water-saturated rock based on values of the mobile water T2 distribution of partially water-saturated rock and a total porosity constraint; summing the T2 distribution for mobile water of fully water-saturated rock and a T2 distribution for an immobile water component of the fluid to provide a T2, distribution for fully water-saturated rock; and transforming the earth formation and/or the production equipment based on a parameter derived from the T2 distribution for fully water-saturated rock.
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公开(公告)号：US11231474B2
公开(公告)日：2022-01-25
申请号：US16839859
申请日：2020-04-03
申请人： Baoyan Li , Julio Roberto Arro , Holger Thern , Hasan Kesserwan , Guodong Jin
发明人： Baoyan Li , Julio Roberto Arro , Holger Thern , Hasan Kesserwan , Guodong Jin
IPC分类号： G01R33/50 , G01V3/32 , G01R33/56 , G01R33/561
摘要： A method of estimating properties of a resource bearing formation includes receiving, by a processor, a measured echo train generated by a nuclear magnetic resonance (NMR) measurement device deployed in a region of interest, and a measured noise of the measured echo train, and calculating a T2 distribution subject to a nonlinear equality constraint, the nonlinear equality constraint dependent on the measured noise and a fitting error between the measured echo train and a modeled echo train. Calculating the T2 distribution includes estimating a solution for the T2 distribution that is closest to satisfying the nonlinear equality constraint.
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公开(公告)号：US20200319282A1
公开(公告)日：2020-10-08
申请号：US16839859
申请日：2020-04-03
申请人： Baoyan Li , Julio Roberto Arro , Holger Thern , Hasan Kesserwan , Guodong Jin
发明人： Baoyan Li , Julio Roberto Arro , Holger Thern , Hasan Kesserwan , Guodong Jin
IPC分类号： G01R33/50 , G01R33/561 , G01R33/56 , G01V3/32
摘要： A method of estimating properties of a resource bearing formation includes receiving, by a processor, a measured echo train generated by a nuclear magnetic resonance (NMR) measurement device deployed in a region of interest, and a measured noise of the measured echo train, and calculating a T2 distribution subject to a nonlinear equality constraint, the nonlinear equality constraint dependent on the measured noise and a fitting error between the measured echo train and a modeled echo train. Calculating the T2 distribution includes estimating a solution for the T2 distribution that is closest to satisfying the nonlinear equality constraint.
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公开(公告)号：US20180059281A1
公开(公告)日：2018-03-01
申请号：US15244216
申请日：2016-08-23
申请人： Julio Roberto Arro
发明人： Julio Roberto Arro
CPC分类号： G01V3/38 , G01V3/32 , Y02A90/344
摘要： A method for estimating one or more properties as a function of depth of an earth formation penetrated by a borehole includes: receiving nuclear magnetic resonance (NMR) logging data having NMR echo trains as a function of depth in the borehole; receiving non-NMR logging data having non-NMR measurement values for one or more types of non-NMR measurements as a function of depth in the borehole; generating an evolution matrix (E) representing a mathematical relationship between the one or more properties in property matrix (P) to be estimated and the NMR logging data and non-NMR logging data matrix (M); generating a matrix equation of the form M=E·P; and inverting the matrix equation to estimate the one or more properties as a function of depth.
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公开(公告)号：US11060397B2
公开(公告)日：2021-07-13
申请号：US16430490
申请日：2019-06-04
IPC分类号： E21B47/01 , G01N27/22 , E21B47/12 , E21B47/001 , E21B47/0228 , E21B47/10
摘要： An example method includes disposing a carrier in a borehole in an earth formation. The carrier includes a logging assembly for performing a formation evaluation of the earth formation using a sensor in proximity to a borehole wall of the borehole, fluid being disposed at least partially between the sensor and the borehole wall. The method further includes estimating an apparent dielectric loss angle of the fluid to determine a stand-off effect caused by the fluid. The method further includes estimating a formation dielectric loss angle and determining a formation resistance based at least in part on the formation dielectric loss angle. The method further includes adjusting the formation evaluation based at least in part on the estimated formation resistance that accounts for the stand-off effect caused by the fluid. The method further includes performing a wellbore operation based at least in part on the adjusted formation evaluation.
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公开(公告)号：US20190187323A1
公开(公告)日：2019-06-20
申请号：US16276041
申请日：2019-02-14
申请人： Julio Roberto Arro
发明人： Julio Roberto Arro
CPC分类号： G01V3/38 , G01V3/32 , Y02A90/344
摘要： A method for estimating one or more properties as a function of depth of an earth formation penetrated by a borehole includes: receiving nuclear magnetic resonance (NMR) logging data having NMR echo trains as a function of depth in the borehole; receiving non-NMR logging data having non-NMR measurement values for one or more types of non-NMR measurements as a function of depth in the borehole; generating an evolution matrix (E) representing a mathematical relationship between the one or more properties in property matrix (P) to be estimated and the NMR logging data and non-NMR logging data matrix (M); generating a matrix equation of the form M=E·P; and inverting the matrix equation to estimate the one or more properties as a function of depth.
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公开(公告)号：US10209391B2
公开(公告)日：2019-02-19
申请号：US15244216
申请日：2016-08-23
申请人： Julio Roberto Arro
发明人： Julio Roberto Arro
摘要： A method for estimating one or more properties as a function of depth of an earth formation penetrated by a borehole includes: receiving nuclear magnetic resonance (NMR) logging data having NMR echo trains as a function of depth in the borehole; receiving non-NMR logging data having non-NMR measurement values for one or more types of non-NMR measurements as a function of depth in the borehole; generating an evolution matrix (E) representing a mathematical relationship between the one or more properties in property matrix (P) to be estimated and the NMR logging data and non-NMR logging data matrix (M); generating a matrix equation of the form M=E·P; and inverting the matrix equation to estimate the one or more properties as a function of depth.
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公开(公告)号：US20190234205A1
公开(公告)日：2019-08-01
申请号：US15883700
申请日：2018-01-30
申请人： Julio Roberto Arro
发明人： Julio Roberto Arro
CPC分类号： E21B49/00 , E21B7/04 , E21B43/11 , E21B43/26 , E21B47/0002 , E21B47/18 , G01B11/285 , G01V8/02
摘要： A method for performing a formation-related physical action includes: receiving image data of a wall of a borehole penetrating a formation, the image data having image data of fractures intersecting the wall of the borehole; and defining a volume surrounding the borehole. The method also includes determining a surface area of each fracture intersecting the volume at each defined depth in a plurality of depths and calculating a fracture density for each defined depth based on the surface area of each fracture intersecting the volume at each defined depth in a plurality of depths and a size of the volume. The method further includes performing the formation-related physical action based on the fracture density for each defined depth using apparatus configured to perform the formation-related physical action.
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公开(公告)号：US10947841B2
公开(公告)日：2021-03-16
申请号：US15883700
申请日：2018-01-30
申请人： Julio Roberto Arro
发明人： Julio Roberto Arro
IPC分类号： E21B49/00 , E21B47/00 , G01V8/02 , G01B11/28 , E21B47/002 , E21B47/18 , E21B43/26 , E21B43/11 , E21B7/04
摘要： A method for performing a formation-related physical action includes: receiving image data of a wall of a borehole penetrating a formation, the image data having image data of fractures intersecting the wall of the borehole; and defining a volume surrounding the borehole. The method also includes determining a surface area of each fracture intersecting the volume at each defined depth in a plurality of depths and calculating a fracture density for each defined depth based on the surface area of each fracture intersecting the volume at each defined depth in a plurality of depths and a size of the volume. The method further includes performing the formation-related physical action based on the fracture density for each defined depth using apparatus configured to perform the formation-related physical action.
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