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公开(公告)号：US20230358914A1
公开(公告)日：2023-11-09
申请号：US17736845
申请日：2022-05-04
发明人： Ahmed Fouda , Baris Guner , Michael S. Bittar
IPC分类号： G01V3/38 , G01V3/30 , E21B47/002
CPC分类号： G01V3/38 , G01V3/30 , E21B47/002
摘要： A borehole imaging tool may include a plurality of resonator antennas for taking one or more downhole measurements disposed on a supporting structure of the borehole imaging tool. Additionally, each of the plurality of resonator antennas are separated into two or more groups of resonator antennas and each of the two or more groups of resonator antennas operate at a resonance frequency different from one another.
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公开(公告)号：US11635542B2
公开(公告)日：2023-04-25
申请号：US16603642
申请日：2018-11-13
IPC分类号： G01V3/38 , E21B47/002 , G01V3/26 , E21B49/08
摘要： A method and system for estimating a mud angle. A method may include disposing a downhole tool into a borehole, energizing a button array, transmitting a current from the electrode into a formation, recording the current from the formation with a return electrode to obtain a plurality of measurements, identifying at least one low resistivity zone from the plurality of measurements to produce a measurement set, inverting the measurement set to find a mud angle vector, removing the mud angle vector from the measurement set to obtain a corrected measurement, and obtaining an electrical image using the corrected measurement. A system may include a downhole tool, a conveyance, and an information handling system. The downhole tool may further include at least one electrode and at least one return electrode.
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公开(公告)号：US11348218B2
公开(公告)日：2022-05-31
申请号：US16835115
申请日：2020-03-30
发明人： Baris Guner , Ahmed Elsayed Fouda
摘要： A method for identifying one or more imaging properties. The method may comprise identifying one or more candidate mud constants, taking one or more measurements from a borehole with a downhole tool to form an image log, inputting into a machine learning model one or more inputs such that the machine learning model outputs one or more estimated imaging properties, and inputting into a forward model at least the one or more estimated imaging properties and the one or more candidate mud constants such that the forward model outputs one or more reconstructed tool responses. The method may further comprise computing a misfit between the one or more reconstructed tool responses and the one or more measurements, picking a mud candidate from the one or more candidate mud constants based at least in part on the misfit, and producing one or more imaging properties from the picked mud candidate.
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公开(公告)号：US11255181B2
公开(公告)日：2022-02-22
申请号：US16491205
申请日：2017-10-31
发明人： Baris Guner , Burkay Donderici
IPC分类号： G01V3/00 , E21B47/022 , E21B47/12 , E21B49/00 , G01V3/08 , G01V3/12 , G01V3/24 , G01V3/20 , G01V3/18 , G01V1/20 , G01R27/02
摘要： This disclosure may relate to a system and method for calculating the mud angle from a downhole device. A method for estimating a mud angle may comprise: disposing a downhole tool into a borehole; extending an arm of the downhole tool to a first location, wherein a pad is disposed on the arm; taking a first impedance measurement with at least one button electrode, wherein the button electrode is disposed in a button array, wherein the button array is disposed on the pad; extending the arm to a second location; taking a second impedance measurement with the at least one button electrode; transmitting the first measurement and the second measurement to an information handling system; and estimating the mud angle from the first impedance measurement and the second impedance measurement with an information handling system.
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公开(公告)号：US11243325B2
公开(公告)日：2022-02-08
申请号：US16587515
申请日：2019-09-30
发明人： Burkay Donderici , Baris Guner
摘要： A variety of methods and systems are disclosed, including, a method for improving resistivity imaging, comprising: disposing a downhole tool into a borehole, wherein the downhole tool comprises a pad and a button array disposed on the pad; taking a measurement with the button array at a location in the borehole; selecting a projection angle; obtaining a corrected measurement from the projection angle and the measurement; and constructing an image using the corrected measurement. A system for improving resistivity imaging, comprising: a downhole tool, wherein the downhole tool comprises: an arm, and a pad; a conveyance; and an information handling system, wherein the information handling system is configured to take a measurement with the button array at a location in the borehole; select a projection angle; obtain a corrected measurement from the projection angle and the measurement; and construct an image using the corrected measurement.
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公开(公告)号：US20210124081A1
公开(公告)日：2021-04-29
申请号：US16336862
申请日：2017-10-31
IPC分类号： G01V3/38 , G01V3/02 , E21B49/00 , E21B47/002
摘要： A method and a system for tuning a pad. The method may comprise disposing a downhole tool into a borehole, configuring the pad in a first configuration, taking a first measurement of the formation in the first configuration, configuring the pad in a second configuration, taking a second measurement of the formation in the second configuration, determining a tuning coefficient to reduce a tool body effect in the first measurement and the second measurement, computing a first weighted measurement from the tuning coefficient and the first measurement, computing a second weighted measurement from the tuning coefficient and the second measurement, and computing a tuned impedance from a ratio of the first weighted measurement and the second weighted measurement. A system for determining a formation boundary may comprise a downhole tool, an arm, and a pad. The system may further comprise a conveyance and an information handling system.
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公开(公告)号：US10203193B2
公开(公告)日：2019-02-12
申请号：US14753910
申请日：2015-06-29
摘要： Various embodiments include apparatus and methods related to finding a position in an underground formation. Apparatus and methods can include receiving signals from a receiver in an underground formation in response to signals generated from transmitting sources, each of the transmitting sources located at a known position; and processing the received signals, based on the signals generated from the transmitting sources, to determine the position of the receiver. A number of techniques can be applied to processing the received signal. Additional apparatus, systems, and methods are disclosed.
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公开(公告)号：US20170074087A1
公开(公告)日：2017-03-16
申请号：US15123597
申请日：2014-12-30
发明人： Burkay Donderici , Baris Guner
摘要： Methods and systems are described that can be used for locating conductive bodies such as wellbore casing or piping disposed below the earth's surface. An electrical current can be excited in a conductive body in each wellbore in a given area to produce a magnetic field, and the magnetic field can be detected by a ranging tool. Location and current parameters can be determined for an estimated number of wellbores producing non-negligible contributions to the magnetic field, and the estimated number of wellbores can be adjusted until the number of contributing wellbores is determined. Location solutions can be returned for each of the contributing wellbores, and the location solutions can be employed to facilitate exploration of drilling applications such as well avoidance, well intersection and/or steam assisted gravity drainage (SAGD) steering operations.
摘要翻译： 描述了可用于定位诸如井筒套管或布置在地球表面下方的管道的导电体的方法和系统。 可以在给定区域中的每个井眼中的导电体中激发电流以产生磁场，并且可以通过测距工具来检测磁场。 可以确定产生对磁场的不可忽略的贡献的估计数量的井眼的位置和当前参数，并且可以调整估计的井眼数量，直到确定贡献井筒的数量。 可以为每个贡献井筒返回位置解决方案，并且可以使用位置解决方案来促进钻探应用的探索，例如避免，井口交叉和/或蒸汽辅助重力排水（SAGD）转向操作。
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公开(公告)号：US20160369626A1
公开(公告)日：2016-12-22
申请号：US14904776
申请日：2015-02-27
摘要： Apparatus, systems, and methods may operate to correct measured resistivity data for borehole effects to provide borehole-corrected apparent resistivity data for a non-invaded formation. Additional activity may include inverting the measured resistivity data or the borehole-corrected apparent resistivity data to provide non-invaded true resistivity values for the non-invaded formation, inverting the measured resistivity data to provide invaded true resistivity values for an invaded formation, determining true resistivity values for a geological formation associated with the measured resistivity data as a weighted combination of the non-invaded true resistivity values and the invaded true resistivity values, and operating a controlled device according to the true resistivity values for the geological formation.
摘要翻译： 装置，系统和方法可以操作以校正测井电阻率数据以获得井眼效应，以便为非入侵地层提供井眼校正的视电阻率数据。 额外的活动可能包括颠倒所测量的电阻率数据或钻孔校正的视电阻率数据，以提供非入侵地层的非侵入真实电阻率值，使测得的电阻率数据反转，为入侵地层提供入侵的真实电阻率值，确定真实 与所测量的电阻率数据相关联的地质构造的电阻率值作为非侵入真实电阻率值和入侵真实电阻率值的加权组合，以及根据地质构造的真实电阻率值操作受控设备。
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公开(公告)号：US20160047204A1
公开(公告)日：2016-02-18
申请号：US14423726
申请日：2013-12-30
摘要： A tool for providing modifiable structures in a wellbore using ferrofluids in a downhole system is provided. The downhole system can include a tool body, a source of ferrofluid, and a magnet. The magnet can magnetically couple with the ferrofluid from the source for arranging the ferrofluid adjacent for modifying a parameter of an object coupled with or in the tool body when the tool body is positioned in the wellbore.
摘要翻译： 提供了一种在井下系统中使用铁磁流体在井眼中提供可修改结构的工具。 井下系统可以包括工具主体，铁磁流体源和磁体。 磁体可以与来自源极的铁磁流体磁耦合，用于布置邻近的铁磁流体，用于当工具主体位于井眼中时修改与工具主体相关联的物体的参数。
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