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公开(公告)号：US12105230B2
公开(公告)日：2024-10-01
申请号：US17673567
申请日：2022-02-16
CPC分类号： G01T1/185 , G01V5/04 , H01J47/005 , H01J47/02
摘要： A muon detector includes: a chamber having a maximum cross-sectional dimension of 30 cm or less; a gas sealed inside the chamber ionized by the passage of atmospheric muons to form ions in the chamber; a cathode in the chamber at a first position; an anode in the chamber displaced from the first position, the anode including a mesh of wires; a micropattern gaseous detector arranged between the cathode and the anode and proximate to the anode and configured to receive the ions formed in the chamber between the anode and the cathode and generate electrons in response to each ion sufficient to generate a current in one or more of the mesh wires of the anode; and readout electronics in electrical communication with the anode to detect signals in response to the current generated in the mesh wires.
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公开(公告)号：US12066590B2
公开(公告)日：2024-08-20
申请号：US17715269
申请日：2022-04-07
发明人： Weihua Wang , Yunsheng Li
摘要： Systems and methods include a computer-implemented method for creating artificial real-time gamma ray (GR) images for well placement. Real-time azimuthal density data is determined from drilling of a well. An azimuthal density data set is generated using the real-time azimuthal density data. The azimuthal density data set is generated with a greater sampling rate than a real-time sampling rate of the real-time azimuthal density data. An azimuthal density curve depth match is performed using the azimuthal density data set. Performing the azimuthal density curve depth match includes creating a depth shift match table. A high-resolution sector near-bit gamma ray (GR) image is generated using the azimuthal density curve depth match and the depth shift match table. The high-resolution sector near-bit GR image is oriented to a top of a wellbore for the well.
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公开(公告)号：US11947066B2
公开(公告)日：2024-04-02
申请号：US17781951
申请日：2020-12-01
发明人： David Charles Lawie , Christopher Thomas Koplan , John Carl Jackson , Cory Bryce Wilson , Joel Hitchen , Christopher Pell , Frederick Blaine , Erik Gutterud
CPC分类号： G01V11/005 , E21B47/08 , G01V3/28 , G01V5/04
摘要： A drill hole logging system (5) incorporates a computing system (58) at the surface and a deployment mechanism (40) for conveying a logging tool (10) configured to measure one or more geophysical parameters into a drill hole (20). A transmission means (57) communicates commands and data representing the geophysical parameters between the surface computing system and the logging tool. A borehole caliper (300) is employed to profile the inside of the borehole.
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公开(公告)号：US11692441B2
公开(公告)日：2023-07-04
申请号：US16936170
申请日：2020-07-22
IPC分类号： E21B43/20 , E21B47/06 , E21B47/07 , E21B49/08 , G01V5/04 , G01N23/00 , G01N30/00 , G01N33/24
CPC分类号： E21B49/088 , E21B43/20 , E21B47/06 , E21B47/07 , G01N23/00 , G01N30/00 , G01N33/241 , G01V5/04
摘要： An object of the disclosure is to determine the remaining saturation of existing fluids in naturally fractured and/or homogeneous reservoirs, considering an unconventional tracer test, using the double tracer test method with pressure monitoring (PDTcMP®), which also integrates unused technical elements, in order to estimate more accurately the value of the remaining oil saturation (ROS) in naturally fractured reservoirs, unlike conventional methods used most commonly in homogeneous media. The disclosure substantially modifies the conventional tracer test, as it uses innovative technical elements, which reduce the uncertainty and/or ambiguity associated with conventional tracer tests, when they are applied in naturally fractured reservoirs.
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公开(公告)号：US20230184084A1
公开(公告)日：2023-06-15
申请号：US17643551
申请日：2021-12-09
CPC分类号： E21B45/00 , E21B49/003 , E21B47/06 , E21B43/34 , G01V5/04 , E21B2200/20 , E21B2200/22
摘要： A method for determining a real-time pore pressure log of a well in a reservoir, including the steps: storing existing data logs of surface drilling parameters, logging while drilling (LWD), and mud gas of existing wells in a database, storing existing pore pressure logs of the existing wells in the database, wherein the existing pore pressure logs correspond to the existing data logs, determining a relationship between the existing data logs and the existing pore pressure logs, drilling a new well into the reservoir, determining new data logs of surface drilling parameters, LWD, and mud gas of the new well while drilling the new well, inputting the new data logs of the new well into the relationship while drilling the new well, determining a real-time pore pressure log of the new well by outputting an estimated pore pressure at a certain depth by the relationship while drilling the new well.
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公开(公告)号：US11630234B2
公开(公告)日：2023-04-18
申请号：US16338026
申请日：2016-12-08
发明人： Jason D. Dykstra , Yiming Zhao , Xingyong Song , Fanping Bu
摘要： A system includes different types of downhole sensing tools deployed in a borehole, wherein the different types of downhole sensing tools are optimized to identify a downhole condition based on a predetermined downhole evaluation plan that accounts for sensing tool availability and performance constraints. The system also includes at least one processing unit configured to analyze measurements collected by the different types of downhole sensing tools, wherein the collected measurements are analyzed together to identify the downhole condition. The system also includes at least one device that performs an operation in response to the identified downhole condition.
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7.发明申请公开(公告)号：US20230102216A1
公开(公告)日：2023-03-30
申请号：US16975499
申请日：2020-03-20
摘要： A borehole muon detector for muon radiography or geotomography is provided, the borehole muon detector including a substantially cylindrical housing, which defines a bore, a pair of end caps, each end cap sealing an end of the cylindrical housing and a plurality of sealed drift tubes which are longitudinally disposed in the bore of the housing to form a bundle of drift tubes, wherein each sealed drift tube comprises: a centrally located anode wire disposed on a longitudinal axis; an inner surface which is coated with a cathode coating, the cathode coating divided into a first cathode pad and a second cathode pad by a Vernier pattern; and a timer in electrical communication with the anode wire for measuring a drift time. A system and a method are also provided.
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公开(公告)号：US20220187491A1
公开(公告)日：2022-06-16
申请号：US17489445
申请日：2021-09-29
摘要： Systems and methods for determining a 3D hydraulic aperture of a 3D fracture are disclosed. The method includes, obtaining a geometry of the 3D fracture, determining a fluid flow direction through the 3D fracture, and dividing the 3D fracture into a plurality of 2D cross-sections oriented substantially parallel to the fluid flow direction. The method further includes dividing each 2D cross-section into a plurality of Type I and Type II fracture segments based on a segment aspect ratio and a segment roughness ratio, determining a 2D segment hydraulic aperture for each of the plurality of Type I and Type II fracture segments, and determining the 3D hydraulic aperture of the 3D fracture based, at least in part, on the 2D segment hydraulic apertures of the plurality of Type I and Type II fracture segments.
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公开(公告)号：US11269110B2
公开(公告)日：2022-03-08
申请号：US16211119
申请日：2018-12-05
摘要： Computing system assessment of geological similarity of wells employing well-log data includes receiving logs with chronostratigraphic markers, and extracting signatures from the logs using the chronostratigraphic markers. A distance matrix is generated from the signatures using dynamic time warping. Using the distance matrix, a set of clusters are generated. The set of clusters are presented with an image.
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公开(公告)号：US11237294B2
公开(公告)日：2022-02-01
申请号：US17087384
申请日：2020-11-02
摘要： A method includes receiving a drilling parameter, a tool characterization parameter, and a formation model. The method includes generating a forward model of a tool response at a bed boundary using the one drilling parameter, the tool characterization parameter, and the formation model. The method includes predicting at least two azimuthal gamma logs using the forward model. The method includes determining that a difference between the at least two azimuthal gamma logs generates a confidence level that is greater than a confidence threshold. In response to determining that the difference between the at least two azimuthal gamma logs generates the confidence level that is greater than the confidence threshold, the method includes generating a well plan. The method includes outputting a command for controlling a trajectory in directionally drilling a wellbore within a formation associated with the formation model using the well plan.
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