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公开(公告)号：US20240301789A1
公开(公告)日：2024-09-12
申请号：US18259024
申请日：2021-11-08
IPC分类号： E21B49/00 , E21B47/003 , G01V13/00
CPC分类号： E21B49/003 , E21B47/003 , G01V13/00
摘要： A method for calibrated multi-mineral, multi-fluid interpretation is provided herein. The method includes generating a multi-mineral, multi-fluid interpretation model for a number of log types using core and/or specialized log data acquired from subsurface region(s) that relate to components within the subsurface region(s). Generating the model includes: (1) for each log type, calibrating component end-members for the log type via an inversion of the core and/or specialized log data relating to the components across all depths of interest; and (2) incorporating the resulting calibrated end-members for the log types into the model. The method also includes generating component volume fraction profiles using log data acquired from analogous subsurface region(s) using the model, wherein the log data relate to any of the log types used to generate the model. Each component volume fraction profile includes a range of component volume fractions that accounts for a degree of uncertainty within the model.
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公开(公告)号：US11940059B2
公开(公告)日：2024-03-26
申请号：US17284920
申请日：2019-10-09
发明人： Alexander Michel , Dirk Morschel , Eduard Wiens
CPC分类号： F16K37/0083 , F16K31/0675 , G01R33/0035 , G01R35/00 , G01R35/005 , G01V3/08 , G01V3/081 , G01V13/00 , H01F2007/1861 , H01F2007/1888
摘要： A method for determining a switching state of a valve, an inductance variable being determined on the basis of current and voltage measurements and the switching state being determined on the basis of the inductance variable. Also disclosed is a solenoid valve assembly for carrying out such a method.
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公开(公告)号：US11933931B2
公开(公告)日：2024-03-19
申请号：US16870198
申请日：2020-05-08
发明人： Dingding Chen , Bin Dai , Christopher M. Jones , Darren Gascooke , Tian He
IPC分类号： G01V13/00 , E21B7/00 , E21B47/06 , E21B47/07 , E21B47/135 , E21B49/08 , G01D18/00 , G01N21/00 , G01V8/10
CPC分类号： G01V13/00 , E21B7/00 , E21B47/06 , E21B47/07 , E21B47/135 , E21B49/08 , G01D18/00 , G01N21/00 , G01V8/10
摘要： A method includes obtaining a plurality of master sensor responses with a master sensor in a set of training fluids and obtaining node sensor responses in the set of training fluids. A linear correlation between a compensated master data set and a node data set is then found for a set of training fluids and generating node sensor responses in a tool parameter space from the compensated master data set on a set of application fluids. A reverse transformation is obtained based on the node sensor responses in a complete set of calibration fluids. The reverse transformation converts each node sensor response from a tool parameter space to the synthetic parameter space and uses transformed data as inputs of various fluid predictive models to obtain fluid characteristics. The method includes modifying operation parameters of a drilling or a well testing and sampling system according to the fluid characteristics.
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公开(公告)号：US20240045098A1
公开(公告)日：2024-02-08
申请号：US18244932
申请日：2023-09-12
申请人： Sloan Valve Company
发明人： Xiaoxiong Mo , Qiaohong Chen , Haiou Wu
摘要： A hybrid sensor for calibrating a primary active infrared (IR) sensor to more accurately locate, continuously calibrate, and conserve energy by more accurately detecting via the active IR detection is described herein. The hybrid sensor includes one or more infrared sensors and one or more time-of-flight sensors. The time-of-flight sensor may remain in a dormant state (e.g., low power or sleep mode) until the one or more infrared sensors detect an object. In response to detecting an object, the time-of-flight sensor may be activated to obtain several measurements of the object. After obtaining the measurements, the time-of-flight sensor may return to its dormant state. The hybrid sensor may use the measurements obtained by the time-of-flight sensor to calibrate the one or more infrared sensors to provide more accurate measurements on an object-by-object basis.
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5.发明授权公开(公告)号：US11841474B2
公开(公告)日：2023-12-12
申请号：US17029865
申请日：2020-09-23
申请人： PGS Geophysical AS
IPC分类号： G01V1/38 , G01V1/36 , G01V13/00 , G01V3/165 , G01V11/00 , G01V1/20 , G01C21/16 , G01V1/18 , G01V1/16
CPC分类号： G01V1/3808 , G01C21/1654 , G01V1/201 , G01V1/364 , G01V1/38 , G01V3/165 , G01V11/00 , G01V13/00 , G01V1/162 , G01V1/181 , G01V1/189 , G01V1/36 , G01V2210/144
摘要： Included are methods and apparatus for marine geophysical surveying. One embodiment of the presently-disclosed solution relates to a method for instantaneous roll compensation of vectorised motion data originating from a fixed-mount geophysical sensor during a marine seismic survey. A streamer is towed behind a survey vessel in a body of water. The streamer includes a plurality of geophysical sensors and a plurality of orientation sensor packages. Vectorised geophysical data is acquired using the plurality of geophysical sensors, while orientation data is acquired by the plurality of orientation sensor packages. The orientation data is used to determine an instantaneous roll angle of the streamer at different positions on the streamer. The vectorised geophysical data is adjusted to compensate for the instantaneous roll angle of the streamer at different positions on the streamer. Other embodiments and features are also disclosed.
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公开(公告)号：US11822045B2
公开(公告)日：2023-11-21
申请号：US17899282
申请日：2022-08-30
CPC分类号： G01V8/10 , E21B49/088 , G01N21/25 , G01V13/00 , G01V99/005 , E21B2200/20
摘要： A method comprises determining an adaptive fluid predictive model calibrated with a plurality of types of sensor data, wherein the plurality of types of sensor responses comprise a first type of sensor response associated with a synthetic parameter space and a second type of sensor response associated with a tool parameter space. The method comprises applying the adaptive fluid predictive model to one or more fluid samples from field measurements obtained from a tool deployed in a wellbore formed in a subterranean formation and determining a value of a fluid answer product prediction with the applied adaptive fluid predictive model. The method comprises facilitating a wellbore operation with the tool based on the value of the fluid answer product prediction.
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公开(公告)号：US20230367030A1
公开(公告)日：2023-11-16
申请号：US18359933
申请日：2023-07-27
发明人： Alexandre Abellan
CPC分类号： G01V13/00 , E21B49/08 , G01V3/26 , E21B49/0875
摘要： A method and apparatus to calibrate a resistivity measurement taken by a downhole tool in a borehole, wherein the downhole tool estimates the resistivity of an underground formation penetrated by the borehole with at least one sensor situated at a non-zero standoff distance from the borehole, is provided. The method includes taking apparent impedance measurements with the sensor at a set of frequencies and at a first plurality of locations in the borehole, wherein the measurement are uncalibrated measurements. The method also includes identifying a portion of the borehole in which the apparent impedance measurements at least at a first frequency of the set have a predetermined behavior. The predetermined behavior is that the apparent impedance measurements taken in the portion are substantially fitting a linear model when represented in the complex plane. The method also includes using a plurality of measurements obtained at a second plurality of location situated in said portion at the first frequency to determine calibration coefficients for the measurements at said frequency.
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公开(公告)号：US11774633B2
公开(公告)日：2023-10-03
申请号：US16000301
申请日：2018-06-05
发明人： Alexandre Abellan
CPC分类号： G01V13/00 , E21B49/08 , G01V3/26 , E21B49/0875
摘要： A method and apparatus to calibrate a resistivity measurement taken by a downhole tool in a borehole, wherein the downhole tool estimates the resistivity of an underground formation penetrated by the borehole with at least one sensor situated at a non-zero standoff distance from the borehole, is provided. The method includes taking apparent impedance measurements with the sensor at a set of frequencies and at a first plurality of locations in the borehole, wherein the measurement are uncalibrated measurements. The method also includes identifying a portion of the borehole in which the apparent impedance measurements at least at a first frequency of the set have a predetermined behavior. The predetermined behavior is that the apparent impedance measurements taken in the portion are substantially fitting a linear model when represented in the complex plane. The method also includes using a plurality of measurements obtained at a second plurality of location situated in said portion at the first frequency to determine calibration coefficients for the measurements at said frequency.
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9.发明公开公开(公告)号：US20230296802A1
公开(公告)日：2023-09-21
申请号：US17697712
申请日：2022-03-17
发明人： Yijing Fan , Hsu-Hsiang Wu , Jin Ma , Li Pan
摘要： Some aspects relate to techniques for calibrating a logging tool. In some implementations, the logging tool may estimate certain unknown properties of a signal based on distances between transmitters and receivers of the logging tool and based on frequencies used by the transmitters and receivers. The logging tool may estimate the unknown properties by interpolating values into a mathematical function related to the above-noted distances and frequencies. After estimating the unknown properties, the logging tool may be deployed into the wellbore, where it may use the estimated properties to process signals received through a subsurface formation.
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公开(公告)号：US11681073B2
公开(公告)日：2023-06-20
申请号：US17246964
申请日：2021-05-03
CPC分类号： G01V13/00 , A47K5/1217 , G01V8/20 , E03C1/057
摘要： Among other things, a dispensing device is described herein. A sensor component of the dispensing device includes an emitter (e.g., of an emitter array) in optical communication with a detector array for sensing objects disposed between the emitter and the detector array. An object detector is configured to identify a presence of an object between the emitter and the detector array based upon a readout signal generated by the detector array. A calibration component is configured to recalibrate the object detector responsive to determining that an obstruction is present between the emitter and the detector array. The recalibration allows the detector array and the emitter array to detect the presence of an object regardless of the obstruction. A material (e.g., soap, sanitizer, etc.) may be dispensed from the dispensing device responsive to detecting the presence of the object.
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