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公开(公告)号：US12095589B1
公开(公告)日：2024-09-17
申请号：US18328723
申请日：2023-06-03
CPC分类号： H04L12/40013 , G01V3/20 , G01V3/38 , G06F13/28 , H04L7/0008 , H04L12/40019 , H04L61/4552
摘要： A method for a multichannel geophysical data acquisition system is provided in the field of electrical resistivity tomography. Individual and autonomous node operating systems are provided. Separate communication channels for upstream and downstream data transfer, high voltage transfer and synchronization signals are provided. A novel use of high voltage isolation barriers is also provided. A direct memory access data transfer process is provided.
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2.发明授权公开(公告)号：US12084956B2
公开(公告)日：2024-09-10
申请号：US17028321
申请日：2020-09-22
IPC分类号： E21B44/00 , E21B7/04 , E21B21/08 , E21B47/002 , E21B49/00 , G01V1/40 , G01V3/20 , G05B13/02 , G06N3/044 , G06N3/045 , G06N3/08
CPC分类号： E21B44/00 , E21B7/04 , E21B21/08 , E21B47/0025 , E21B49/003 , G01V1/40 , G01V3/20 , G05B13/027 , G06N3/044 , G06N3/045 , G06N3/08 , E21B2200/20 , E21B2200/22 , G01V2210/1429 , G01V2210/324
摘要： A method may include obtaining well log data regarding a geological region of interest. The well log data may correspond to logging-while-drilling (LWD) measurements or measurement-while-drilling (MWD) measurements acquired from various wellbores. The method may further include generating image data regarding the geological region of interest using the well log data and a recurrent neural network. The method may further include determining a drilling parameter for a wellbore among the wellbores in real-time using the image data. The drilling parameter may be determined while the well log data is being acquired in the wellbore. The method may further include transmitting, based on the drilling parameter, a command to a drilling system coupled to the wellbore.
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3.发明公开公开(公告)号：US20230375739A1
公开(公告)日：2023-11-23
申请号：US18044622
申请日：2021-09-09
发明人： Gong Li Wang , Dean M. Homan , Ping Zhang , Wael Abdallah , Shouxiang Ma
摘要： A method for estimating resistivity and dielectric constant values of a multi-layer subterranean formation acquiring electromagnetic propagation measurements of the subterranean formation and processing the measurements via inversion to compute the resistivity and dielectric constant values. A one-dimensional formation model is utilized including a plurality of formation layers in which each of the formation layers includes a resistivity value and a dielectric constant value.
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公开(公告)号：US20230228901A1
公开(公告)日：2023-07-20
申请号：US17578685
申请日：2022-01-19
摘要： The disclosure presents processes that utilize collected resistivity data, for example, from an ultra-deep resistivity tool located downhole a borehole. In some aspects, each slice of resistivity data can generate multiple distribution curves that can be overlaid offset resistivity logs. In some aspects, an analysis can be performed to identify trends in the distribution curves that can be used to identify approximate locations of subterranean formation surfaces, shoulder beds, obstacles, proximate boreholes, and other borehole and geological characteristics. As the number of distribution curves generated increase, the confidence in the analysis also increases. In some aspects, the number of distribution curves can be twenty, one hundred, one hundred and one, or other counts of distribution curves. In some aspects, the resistivity data can be used to generate two or more synchronized view perspectives of a specific location along the borehole, where each view perspective uses the same focus area.
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公开(公告)号：US11649726B1
公开(公告)日：2023-05-16
申请号：US17896109
申请日：2022-08-26
发明人： Jiangong Wei
CPC分类号： E21B49/08 , E21B41/0099 , E21B47/07 , E21B49/001 , G01S7/4813 , G01V3/20
摘要： An application method of a device for accurately evaluating the vertical content distribution of an undersea hydrate reservoir includes the following steps: assembling the device into a whole and screwing it into an undersea well; activating natural gas hydrates to produce gaseous substances; opening a directional guide channel corresponding to a thermal excitation system in a working state in S2, so that gaseous natural gas hydrates generated in this horizon enter a screw-in long sleeve through the directional guide channel; collecting, by a gas collection system, the gaseous natural gas hydrates; analyzing and recording components and contents in a box by an optical ranging unit and a resistivity unit; repeating S4 and S5 till the end of one collection cycle; and performing data processing and analysis. In this way, accurate evaluation of the vertical content distribution of undersea hydrates is realized.
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公开(公告)号：US11643920B2
公开(公告)日：2023-05-09
申请号：US17649324
申请日：2022-01-28
IPC分类号： E21B47/002 , E21B47/125 , E21B47/026 , G01V3/20
CPC分类号： E21B47/0025 , E21B47/026 , E21B47/125 , G01V3/20
摘要： A method includes deploying a logging tool in a borehole formed in a subsurface formation, the logging tool having a transmitter and a receiver, wherein a condition that is present during logging comprises at least one of a shape of the borehole is non-circular and the logging tool is off-center within the borehole. The method includes emitting, by the transmitter, a signal into subsurface formation and detecting, by the receiver, a response to the signal being propagated through the subsurface formation. The method includes creating, from the response, a borehole image that includes features in the subsurface formation and correcting the features, wherein correcting the features comprises mapping points of a non-circular shape in the borehole image into a plane substantially perpendicular to an axis of the borehole.
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公开(公告)号：US20180320447A1
公开(公告)日：2018-11-08
申请号：US16038082
申请日：2018-07-17
CPC分类号： E21B7/06 , E21B41/0092 , E21B43/24 , E21B43/30 , E21B43/305 , E21B44/005 , E21B47/02216 , E21B47/024 , G01V3/20 , G01V3/28
摘要： A method for optimizing production in a well, the method comprising: localizing low resistivity fluid deposits in a geological formation based on calculation of a difference between two electric current values, where each of the two electric current values correspond to different depths in the well; and optimizing production from the geological formation based on the localizing by adjustment of at least one of a drilling parameter or a production parameter.
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公开(公告)号：US20180306024A1
公开(公告)日：2018-10-25
申请号：US15771176
申请日：2017-09-10
申请人： Shanjun Li
发明人： Shanjun Li
IPC分类号： E21B47/022 , G01V3/26 , G01V1/50
CPC分类号： E21B47/02216 , G01V1/44 , G01V1/50 , G01V3/20 , G01V3/26 , G01V2200/16
摘要： The present invention provides a methodology and system for formation boundary detection ahead and around of a drilling bit. By setting symmetrical design of receivers/transmitters around a transmitter/receiver and the direction of the receivers/transmitters, the system can measure the signals reflected by a formation boundary ahead of and around the drilling bit. The measured signals can be used to determine formation boundary positions.
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公开(公告)号：US10036825B2
公开(公告)日：2018-07-31
申请号：US14127372
申请日：2012-05-22
申请人： Andrew Hibbs , Eli Glezer
发明人： Andrew Hibbs , Eli Glezer
CPC分类号： G01V3/20 , E21B47/102 , G01V3/26
摘要： The invention relates to measuring and generating electrical fields downhole. In one embodiment a system is provided that includes an amplifier connected to a first electrode in electrical contact with the Earth via an operative capacitive coupling. An additional electrode and amplifier are disposed in the borehole opposite the first electrode and constitute a first pair of electrodes spaced in a direction orthogonal to the axis. A second electrode is part of a group of counter electrodes spaced from each other and disposed outside the borehole. The first pair of electrodes and the amplifiers are configured to be one of a source that generates an electrical field in a direction substantially orthogonal to the axis of the borehole and a sensor that measures an electric field substantially orthogonal to the axis of the borehole.
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公开(公告)号：US20180202957A1
公开(公告)日：2018-07-19
申请号：US15475744
申请日：2017-03-31
CPC分类号： G01V3/20 , G01N15/082 , G01N33/24
摘要： Methods of evaluating and/or selecting formation stabilization treatments for subterranean formations are provided. In some embodiments, the methods comprise: subjecting a test formation sample to stress loads, wherein sample comprises: two wafers of a formation material from a subterranean formation, and a plurality of proppant particulates between and in contact with the two wafers; measuring a conductivity of a test fluid through the test formation sample, wherein an eluted test fluid is collected after passing through the test formation sample; determining one or more damage properties of the test formation sample using computed tomography images; determining one or more properties of the eluted test fluid; and selecting a formation stabilization treatment for the subterranean formation based at least in part on the conductivity of the test fluid through the test formation sample, the damage properties of the test formation sample, and/or the properties of the eluted test fluid.
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