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公开(公告)号:US12291943B2
公开(公告)日:2025-05-06
申请号:US18297326
申请日:2023-04-07
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Ge Jin , Kyle Friehauf , Baishali Roy
Abstract: A method of optimizing production of a hydrocarbon-containing reservoir by measuring low-frequency Distributed Acoustic Sensing (LFDAS) data in the well during a time period of constant flow and during a time period of no flow and during a time period of perturbation of flow and simultaneously measuring Distributed Temperature Sensing (DTS) data from the well during a time period of constant flow and during a time period of no flow and during a time period of perturbation of flow. An initial model of reservoir flow is provided using the LFDAS and DTS data; the LFDAS and DTS data inverted using Markov chain Monte Carlo method to provide an optimized reservoir model, and that optimized profile utilized to manage hydrocarbon production from the well and other asset wells.
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公开(公告)号:US20240045091A1
公开(公告)日:2024-02-08
申请号:US18230815
申请日:2023-08-07
Applicant: ConocoPhillips Company
Inventor: Chengbo Li , Baishali Roy , Charles C. Mosher
IPC: G01V1/30
CPC classification number: G01V1/302 , G01V2210/632 , G01V2210/665
Abstract: Systems and methods for reservoir modeling include a super resolution seismic data conversion platform for converting input seismic data into high resolution output seismic data. The super resolution seismic data conversion platform can perform a super resolution inversion on the input seismic data by imposing sparsity and/or coherency assumptions on geophysical parameters represented by wavelet information of the input seismic data. For instance, a seismic trace interval can be determined, and both a reflection coefficient and an acoustic impedance of the seismic trace interval can be constrained. An optimization problem, using the constrained reflection coefficient and the constrained acoustic impedance, can be generated and/or solved by a sparse inversion. As such, a vertical resolution, as well as a seismic bandwidth, of super resolution output seismic data can be increased, improving subterranean feature (e.g., sand and/or shale characteristics) interpretation and well planning and construction.
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公开(公告)号:US11352878B2
公开(公告)日:2022-06-07
申请号:US16163115
申请日:2018-10-17
Applicant: ConocoPhillips Company
Inventor: Ge Jin , Baishali Roy
Abstract: Monitoring and diagnosing completion during hydraulic fracturing operations provides insights into the fracture geometry, inter-well frac hits and connectivity. Conventional monitoring methods (microseismic, borehole gauges, tracers, etc.) can provide a range of information about the stimulated rock volume but may often be limited in detail or clouded by uncertainty. Utilization of DAS as a fracture monitoring tool is growing, however most of the applications have been limited to acoustic frequency bands of the DAS recorded signal. Low-frequency Distributed Acoustic Sensing (DAS) signal is used to constrain hydraulic fracture geometry. Events like fracture opening and closing, stress shadow creation and relaxation, ball seat and plug isolation can be clearly identified.
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公开(公告)号:US10287874B2
公开(公告)日:2019-05-14
申请号:US15453650
申请日:2017-03-08
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Ge Jin , Charles C. Mosher , Frank P. Filice , Kyle R. Krueger , Ali Tura , Baishali Roy , Dana M. Jurick
Abstract: A method of monitoring hydraulic fracturing using DAS sensors in a treatment well and/or observation well is described. The raw data is transformed using a low pass filter (≤0.05 Hz) and down-sampled to show the signal as the stimulation progresses. The resulting data can be used to optimize the hydraulic fracturing or improve reservoir models for other reservoirs.
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公开(公告)号:US11802783B2
公开(公告)日:2023-10-31
申请号:US17867483
申请日:2022-07-18
Applicant: ConocoPhillips Company
Inventor: Baishali Roy , Kyle Friehauf , Kevin T. Raterman , Herbert W. Swan , Jesse J. Constantine , Ge Jin
IPC: G01F1/684 , G01N33/28 , G01N29/024 , E21B21/08
CPC classification number: G01F1/684 , E21B21/08 , G01N29/024 , G01N33/2823 , G01N33/2847 , G01N2291/011 , G01N2291/0222
Abstract: A system for measuring fluid flow in a wellbore is provided. A probe includes at least a heater. A fiber optic cable is connected to the probe. The system is programmed to perform operations including: changing an output of the heater to thereby change a temperature of drilling fluid moving over a fiber optic cable; measuring a strain on the fiber optic cable caused by changing the temperature of the drilling fluid; preliminarily determining a velocity of the drilling fluid from the measured strain; measuring at least a second parameter of the drilling fluid; adjusting the preliminary determined velocity based on the measured at least a second parameter to yield an adjusted velocity; and determining a flow rate of the drilling fluid based on the adjusted velocity.
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公开(公告)号:US11021934B2
公开(公告)日:2021-06-01
申请号:US16401620
申请日:2019-05-02
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Ge Jin , Kyle Friehauf , Baishali Roy
Abstract: A method of optimizing production of a hydrocarbon-containing reservoir by measuring low-frequency Distributed Acoustic Sensing (LFDAS) data in the well during a time period of constant flow and during a time period of no flow and during a time period of perturbation of flow and simultaneously measuring Distributed Temperature Sensing (DTS) data from the well during a time period of constant flow and during a time period of no flow and during a time period of perturbation of flow. An initial model of reservoir flow is provided using the LFDAS and DTS data; the LFDAS and DTS data inverted using Markov chain Monte Carlo method to provide an optimized reservoir model, and that optimized profile utilized to manage hydrocarbon production from the well and other asset wells.
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公开(公告)号:US10370957B2
公开(公告)日:2019-08-06
申请号:US15453216
申请日:2017-03-08
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Ge Jin , Herbert W. Swan , Baishali Roy , Kyle R. Krueger
Abstract: This disclosure describes a method of combining DAS and DTS data to accurately estimate borehole temperature. The described method takes advantage of the thermal sensitivity of DAS signal in the low-frequency band, and combines with the absolute temperature measurement from DTS, to produce a distributed temperature estimation that is up to 10000 more accurate than the current commercial solution. The DAS and DTS data should be record simultaneously at the same well. The DAS data are first low-pass filtered and then converted into temperature variation measurement. Then an accurate temperature estimation is obtained by fitting both DTS and DAS data.
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公开(公告)号:US11686871B2
公开(公告)日:2023-06-27
申请号:US17576025
申请日:2022-01-14
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Kevin T. Raterman , Helen E. Farrell , Kyle Friehauf , Raymond R. Reid, Jr. , Ge Jin , Baishali Roy , Dana M. Jurick , Seth Busetti
IPC: G01V1/30 , E21B47/002 , E21B41/00 , E21B43/26 , E21B49/00 , E21B49/02 , G01V1/22 , G01V1/28 , G01V1/42 , G01V9/00 , E21B47/07 , E21B43/267 , E21B47/06
CPC classification number: G01V1/308 , E21B41/0092 , E21B43/26 , E21B47/002 , E21B49/00 , E21B49/02 , G01V1/226 , G01V1/282 , G01V1/288 , G01V1/42 , G01V9/005 , E21B43/267 , E21B47/06 , E21B47/07 , G01V2210/1234 , G01V2210/646 , G01V2210/663
Abstract: A data acquisition program, which includes core, image log, microseismic, DAS, DTS, and pressure data, is described. This program can be used in conjunction with a variety of techniques to accurately monitor and conduct well stimulation.
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公开(公告)号:US11193367B2
公开(公告)日:2021-12-07
申请号:US16365173
申请日:2019-03-26
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Ge Jin , Kyle R Krueger , Baishali Roy
IPC: E21B47/107 , E21B47/06 , E21B47/07 , E21B43/26 , G01V1/42 , G01H9/00 , E21B47/135
Abstract: A method of assessing cross-well interference and/or optimizing hydrocarbon production from a reservoir by obtaining low frequency DAS and DTS data and pressure data from a monitor well, when both the monitor and production well are shut-in, and then variably opening the production well for production, and detecting the temperature and pressure fluctuations that indication cross-well interference, and localizing the interference along the well length based on the low frequency DAS data. This information can be used to optimize well placement, completion plans, fracturing plans, and ultimately optimize production from a given reservoir.
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公开(公告)号:US10890058B2
公开(公告)日:2021-01-12
申请号:US15453584
申请日:2017-03-08
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Kyle R. Krueger , Ge Jin , Charles C. Mosher , Herbert W. Swan , Baishali Roy
IPC: E21B43/17 , G01V1/42 , G01V1/30 , G01V1/22 , G01H9/00 , E21B47/113 , E21B47/135 , E21B43/26 , G01V1/48 , G06T17/05
Abstract: A workflow using techniques for improving signal-to-noise ratio and decreasing interferences for Low-Frequency Distributed Acoustic Sensing is described.
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