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91.发明授权公开(公告)号：US11604126B2
公开(公告)日：2023-03-14
申请号：US16497312
申请日：2018-12-18
发明人： Dennis J. Haggerty
摘要： Overburden stress is applied to a core rock sample in a sleeve. Pressure is applied to pores in the core rock sample. An overburden fluid pressure indicative of the overburden stress and pore fluid pressure indicative of the pore pressure is measured. A difference between the overburden fluid pressure and pore fluid pressure is determined. The measuring and determination of the difference is repeated over a period of time. A rate of change of the difference over the period of time is determined. An indication of the rate of change meeting a threshold level is output indicative of the overburden stress transferring into and throughout the core rock sample.
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公开(公告)号：US11598899B2
公开(公告)日：2023-03-07
申请号：US16500372
申请日：2018-12-28
IPC分类号： G01V99/00 , E21B43/116 , E21B43/26 , G01N33/24
摘要： Construction and use of an instrument test fixture for capturing performance data for stimulation or fracturing treatments. The test fixture includes a target material, such as concrete, which includes embedded sensors surrounding a casing. An energetic stimulation treatment, such as a dynamic pulse fracturing technique, is applied through the casing to the target material to simulate a treatment that would be performed in a wellbore. During application of the treatment, the sensors capture measurements which are recorded for analysis by a data collection system. The sensors allow for the measurement of key performance indicators including static and dynamic pressure, generated temperature, and resulting strain energy. The captured data can be analyzed and used to design and optimize stimulation treatments for field applications.
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公开(公告)号：US11574459B2
公开(公告)日：2023-02-07
申请号：US16461923
申请日：2017-02-06
发明人： Hsu-Hsiang Wu , Rencheng Song , Li Pan
IPC分类号： G06V10/75 , E21B47/026 , G01V3/34 , G01V3/38 , G01V3/20
摘要： A pixelation-based approach to summarize downhole inversion results acquires inversion solutions and generates an initial model. Each layered solution is pixelated into pixels where each pixel contains the resistivity value of the initial model. A weighted function that weighs pixels according to their proximity to the logging tool may be used to generate the pixelated model to thereby improve accuracy. A statistical summary study is performed to identify the best pixelated model, which is then used to determine one or more formation characteristics.
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公开(公告)号：US11573161B2
公开(公告)日：2023-02-07
申请号：US16885167
申请日：2020-05-27
摘要： A densitometer in the present disclosure comprises a measurement module that is calibrated to estimate sample fluid density with high accuracy and minimized sensitivity to temperature of tube and clamp components in the densitometer. The densitometer measures sample fluid density by vibrating the sample fluid and measuring the resonant frequency of the sample fluid, then estimating the sample fluid density based on this resonant frequency. The measurement module is calibrated specific to dissimilar tube and clamp materials. The tube and the clamp of the densitometer have materials are chosen to be cost-effective based on the specifications of the densitometer system and to have coefficients of thermal expansion (CTEs) which reduce temperature dependence of the resonant frequency of the sample fluid inside of the densitometer.
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公开(公告)号：US11561311B2
公开(公告)日：2023-01-24
申请号：US16495525
申请日：2018-12-07
摘要： An apparatus comprises a distributed acoustic sensing (DAS) optical fiber, a DAS interrogator coupled to the DAS optical fiber, and a connector. The connector couples the DAS interrogator, a first digitizer, and a second digitizer, wherein the first digitizer is to generate a first digitized DAS signal based on an analog DAS signal from the DAS interrogator, and the second digitizer is to generate a second digitized DAS signal based on the analog DAS signal. The apparatus also comprises one or more processors and a machine-readable medium having program code executable to cause the apparatus to simultaneously generate a first set of values that correlate with a first physical property based on the first digitized DAS signal and generating a second set of values that correlate with a second physical property based on the second digitized DAS signal.
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公开(公告)号：US11560776B2
公开(公告)日：2023-01-24
申请号：US16314796
申请日：2016-08-16
发明人： Srinath Madasu
IPC分类号： E21B43/27 , C09K8/76 , C09K8/74 , E21B41/00 , E21B43/14 , E21B43/16 , E21B47/06 , G06F30/23 , G06F30/28 , E21B21/00 , E21B43/26 , G01V99/00
摘要： Methods and system for modeling wellbore treatment operations in which the flow of treatment fluids may be diverted are provided. In one embodiment, the methods comprise: receiving, at a processing component, one or more treatment operation inputs characterizing a treatment operation for a wellbore system comprising a wellbore penetrating at least a portion of a subterranean formation and a treatment fluid comprising a diverter, wherein at least one of the one or more treatment operation inputs comprises the inlet concentration of the diverter in the treatment fluid; and using the processing component to determine a wellbore system pressure distribution and a wellbore system flow distribution based, at least in part, on the one or more treatment operation inputs and a diversion flow model, wherein the diversion flow model captures an effect of the diverter on fluid flow in the wellbore system.
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公开(公告)号：US11549367B2
公开(公告)日：2023-01-10
申请号：US16991382
申请日：2020-08-12
摘要： A tool including a dispersive spectrometer deployable within a wellbore is provided. The dispersive spectrometer includes a waveguide layer to detect electromagnetic radiation according to wavelength. The dispersive spectrometer also includes a plurality of detector elements disposed along the waveguide layer to detect electromagnetic radiation associated with a portion of the wavelength of the electromagnetic radiation. A method for using the tool in a subterranean application is also provided.
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公开(公告)号：US11542784B2
公开(公告)日：2023-01-03
申请号：US16336059
申请日：2017-08-02
摘要： A method includes selecting a model for a simulation of hydrocarbon recovery from a reservoir having a plurality of fractures during injection of an injected gas into the plurality of fractures. Selecting the model includes determining a flux ratio of a convection rate to a diffusion rate for the reservoir, determining whether the flux ratio is less than a threshold, and in response to the flux ratio being less than the threshold, selecting the model that includes diffusion. Selecting the model includes performing the simulation of the hydrocarbon recovery from the reservoir based on the model.
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公开(公告)号：US11536136B2
公开(公告)日：2022-12-27
申请号：US17006051
申请日：2020-08-28
发明人： Mathew Dennis Rowe
摘要： Analysis of chemical and physical properties of drilling and formation fluids associated with pulse power drilling operations that are performed in a borehole extending below a surface into one or more layers of formation material are conducted to determine one or more properties associated with the formation material and/or the drilling and formation fluids.
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公开(公告)号：US11513110B2
公开(公告)日：2022-11-29
申请号：US16583884
申请日：2019-09-26
发明人： Mathew Dennis Rowe
摘要： Drill bit wear can be quantified through an analysis of chemical reactions that occur during drilling. A detector measures the molar composition of a dissolved gas sample. From the molar composition, the moles of hydrogen, ethylene, and propylene in the dissolved gas sample are determined. A thermal cracking reaction and a thermal decomposition reaction determine moles of hydrogen produced during drill bit wear based on the moles of ethylene and propylene. The moles of hydrogen produced is subtracted from the total moles of hydrogen to determine moles of hydrogen produced by metal oxidation. A metal-water reaction determines the moles of metal that have been oxidized. This can be converted into mass or volume of metal loss to quantify drill bit wear.
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