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公开(公告)号：US12129759B2
公开(公告)日：2024-10-29
申请号：US17834334
申请日：2022-06-07
发明人： Luchao Jin , Shashidhar Rajagopalan , Erick Acosta
CPC分类号： E21B49/0875 , C09K8/584 , E21B43/16 , E21B49/005 , E21B49/02
摘要： The method includes gathering field data of a formation, preparing samples of brine consistent with the composition of the formation brine and the injection brine, dead crude oil, and live crude oil, and characterizing the properties of crude oil samples. The method includes preparing samples of reservoir rock and characterizing the properties of the rock samples of the formation. The method includes measuring the contact angle of surfactant/formation brine/formation rock/formation crude oil samples at ambient and reservoir conditions and measuring the interfacial tension of the sample. The method includes characterizing the HLD properties of each surfactant. In addition, the method includes performing formulation targeting HLD=0 for a mixture of surfactants, performing laboratory evaluation of the HLD=0 formulation of the mixture of the surfactants to obtain values of oil recovery number, and testing the HLD=0 formulation of the mixture of the first and second selected surfactants in the formation.
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公开(公告)号：US12099158B2
公开(公告)日：2024-09-24
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：US12090532B2
公开(公告)日：2024-09-17
申请号：US16927488
申请日：2020-07-13
申请人： Loci Controls, Inc.
发明人： Peter Quigley , Ian Martin , Jack Rowbottom , Nicole Neff
CPC分类号： B09C1/005 , E21B34/00 , E21B47/06 , E21B49/0875 , G01N33/004 , G01N33/0044 , G01N33/0047 , G01N33/24
摘要： Systems and methods for controlling extraction of landfill gas from a landfill via a gas extraction system are provided herein. According to some aspects of the technology, there is provided site-level control methods for globally controlling one or more wells based on one or more characteristics of aggregate landfill gas collected from a plurality of wells at a gas output. According to some aspects of the technology, there is provided well-level control methods for locally controlling a first well based on or more characteristics of landfill gas collected from the first well. According to further aspects of the technology, there is provided hybrid control methods for making adjustments to a respective well based on both site-level and well-level control methods.
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公开(公告)号：US20240301792A1
公开(公告)日：2024-09-12
申请号：US18667426
申请日：2024-05-17
发明人： Mohammed Albassam , Arturo Magana Mora , Chinthaka Pasan Gooneratne , Mohammad Aljubran , Peter Boul
CPC分类号： E21B49/0875 , C09K8/24 , G01N33/24
摘要： Systems and methods include techniques for using smart polymers. Units of smart polymers with per-hydrogen (pH) sensitivity are inserted into drilling fluid pumped into a well during drilling. The smart polymers are configured to be triggered by hydrogen ion concentrations. An insertion timestamp associated with each unit is stored and indicates a time that each unit was inserted. Continuous images and observed characteristics of returning mud exiting through an annulus of the well and containing the units of smart polymer are captured by a camera positioned at a sensing location and linked to the monitoring system. An estimate of pH values at a drill bit of the drilling operation is determined using the continuous images, observed characteristics, and insertion timestamps, and based at least in part on executing image processing algorithms, machine-learning models, and deep-learning models. Changes to be made to drilling parameters are suggested.
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公开(公告)号：US12085504B2
公开(公告)日：2024-09-10
申请号：US16973279
申请日：2018-07-18
发明人： Jian Li , Jimmy Price , Bin Dai , Christopher Michael Jones
IPC分类号： G01N21/3577 , E21B49/08 , G01J3/12 , G02B5/20 , G02B5/22
CPC分类号： G01N21/3577 , G01J3/12 , G02B5/208 , G02B5/226 , E21B49/0875 , G01J2003/1213 , G01N2201/0686
摘要： An optical element may be fabricated by applying foreign or attenuating material, for example, a copper material or a material that includes copper, to a silicon dioxide thin film to form a layer that exhibits extraordinary optical absorption in the infrared wavelength region of at or about 2500-4700 nanometers. The foreign material may comprise or include a transition metal. The optical element exhibits increased accuracy and sensitivity in the infrared wavelength region of at or about 2500-4700 nanometers. The at or about 2500-4700 nanometers absorption property of the optical element can be selectively tuned to any region within this at or about 2500-4700 nanometers wavelength region. The optical element may comprise multiple layers of varying thicknesses to further tune the optical element to one or more spectral bands. Such an optical element may be utilized in a formation fluid analysis tool or an eye protection device.
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公开(公告)号：US12077504B2
公开(公告)日：2024-09-03
申请号：US18162495
申请日：2023-01-31
发明人： Hooisweng Ow , Rena Shi , Jason R. Cox , Sehoon Chang
IPC分类号： C09K11/07 , C07D203/04 , C07D213/55 , C07D213/79 , C07D213/89 , C07D401/04 , C07D403/02 , C07D471/04 , C09K8/03 , E21B43/16 , E21B47/11 , E21B49/08 , G01N21/64
CPC分类号： C07D213/55 , C07D213/79 , C07D213/89 , C07D401/04 , C07D471/04 , C09K8/03 , C09K11/07 , E21B43/16 , E21B47/11 , E21B49/08 , G01N21/6408 , G01N21/643 , C09K2211/1018 , C09K2211/182 , E21B49/0875 , G01N2021/641 , G01N2201/129
摘要： The disclosure features methods of analyzing a fluid extracted from a reservoir, the methods including introducing a first composition featuring a first complexing agent into a reservoir at a first location, extracting a fluid from the reservoir at a second location different from the first location, combining the fluid with a second composition featuring a concentration of a lanthanide ion to form a third composition featuring a concentration of a complex formed by the first complexing agent and the lanthanide ion, exposing a quantity of the complex to electromagnetic radiation for a first time period ending at a time to, detecting fluorescence emission from the quantity of the complex for a second time period starting at a time t1>t0, where t1−t0 is greater than 2 microseconds, and determining information about a fluid flow path between the first location and the second location.
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7.发明授权公开(公告)号：US12049820B2
公开(公告)日：2024-07-30
申请号：US17328735
申请日：2021-05-24
CPC分类号： E21B49/0875 , E21B47/10 , E21B43/26 , E21B49/00
摘要： Embodiments herein relate to a technique that may include identifying historical data related to at least one remote well. The technique may further include identifying, based on the historical data, a correlation between gas flow capacity and estimated ultimate recovery (EUR) of the at least one other well. The technique may further include identifying gas flow capacity of a well. The technique may further include predicting, based on the gas flow capacity of the well and the identified correlation between gas flow capacity and EUR of the at least one other well, EUR of the well. The technique may further include operating the well based on the predicted EUR. Other embodiments may be described or claimed.
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公开(公告)号：US20240240558A1
公开(公告)日：2024-07-18
申请号：US18559190
申请日：2022-05-06
发明人： Albert Ballard Andrews , Andrew J. Speck , Ridvan Akkurt , Oliver C. Mullins , Shawn David Taylor
CPC分类号： E21B49/0875 , G01N21/65 , B65G5/00 , E21B2200/20
摘要： Systems and methods presented herein are configured to monitor gas storage in a well and, more specifically, to invert optical measurements to predict the fractional molar composition of an unknown composition of a gas mixture comprised of hydrogen, carbon dioxide, other gases, or combinations thereof, in any underground reservoir or salt dome where hydrogen, carbon dioxide, and/or the other gases are stored or exist.
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公开(公告)号：US12037902B2
公开(公告)日：2024-07-16
申请号：US18049962
申请日：2022-10-26
CPC分类号： E21B49/10 , E21B49/084 , E21B49/0875
摘要： A sample while logging tool for downhole fluid sampling and production logging may include a sample collector sub and a sensor sub. The sample collector sub may include a body defining a bore extending from a first end to a second end. One or more sample chambers may be housed in the bore. The sample chamber may collect a fluid sample. At least one probe may be coupled to the sample chamber to measure fluid properties of the collected fluid sample within the sample chamber and transmit the fluid properties. A piston may be coupled to the first end having a gate distal to the first end. The piston may be actuated to open and close an opening of the sample chamber. Additionally, the sensor sub may measure and transmit data on fluids within a well to form production logging data.
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公开(公告)号：US12006821B2
公开(公告)日：2024-06-11
申请号：US17175180
申请日：2021-02-12
CPC分类号： E21B49/087 , E21B49/08 , G01N21/77 , G01N27/12 , G01N33/2823 , E21B49/0875 , G01N2021/7773 , G01N2021/7783
摘要： The present application relates sensing reactive components in fluids by monitoring band gap changes to a material having interacted with the reactive components via physisorption and/or chemisorption. In some embodiments, the sensors of the present disclosure include the material as a reactive surface on a substrate. The band gap changes may be detected by measuring conductance changes and/or spectroscopic changes. In some instances, the sensing may occur downhole during one or more wellbore operations like drilling, hydraulic fracturing, and producing hydrocarbons.
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