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公开(公告)号：US10527744B2
公开(公告)日：2020-01-07
申请号：US15510029
申请日：2014-10-13
发明人： Baidurja Ray , Avi Lin , Jianfu Ma
摘要： A method for improved data-driven estimation of a stimulated reservoir volume may generate an optimized surface that encloses a set of data points including microseismic event data corresponding to a treatment of a subterranean formation. A Delaunay triangulation may be performed on the set of data points to generate a set of polytopes. A Voronoi polygon may be generated about each data point and used to obtain a local density measure that is locally and adaptively determined for each data point. Based on the local density measure, polytopes in the set of polytopes may be discriminated for inclusion in the optimized surface.
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12.发明授权公开(公告)号：US10120089B2
公开(公告)日：2018-11-06
申请号：US15129768
申请日：2014-04-30
发明人： Jianfu Ma , Avi Lin , Baidurja Ray
IPC分类号： G01V1/28
摘要： In some aspects, a stimulated reservoir volume (SRV) parameter for a stimulation treatment applied to a subterranean region is identified. A parameter of a fracture-plane network generated by application of the stimulation treatment is identified. A correlation between the SRV parameter and the fracture-plane network parameter is identified. In some implementations, the SRV and the fracture-plane network are computed based on microseismic event data associated with the stimulation treatment.
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13.发明授权公开(公告)号：US11668168B2
公开(公告)日：2023-06-06
申请号：US17459581
申请日：2021-08-27
发明人： Sergei Parsegov , Stanley Vernon Stephenson , Tirumani Swaminathan , Daniel Joshua Stark , Baidurja Ray
IPC分类号： E21B43/26 , E21B47/18 , E21B47/095 , E21B47/06 , E21B43/14
CPC分类号： E21B43/14 , E21B43/26 , E21B47/06 , E21B47/095 , E21B47/18
摘要： A system is provided including at least one pump for pumping a fluid into a wellbore, a pressure sensor provided at a wellhead of the wellbore for measuring a backpressure of the fluid being pumped into the wellbore, and a diagnostic manager. The diagnostic manager obtains pressure data associated with a pressure signal from the pressure sensor, wherein the pressure data includes pressure measurements of the fluid over a selected time period. The diagnostic manager converts, based on the pressure data, at least a portion of the pressure signal into frequency domain. The diagnostic manager detects a change in frequency of the pressure signal in the Fourier spectrum and determines that a fault associated with the wellbore has occurred based on the changed frequency of the pressure signal.
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14.发明申请公开(公告)号：US20230120763A1
公开(公告)日：2023-04-20
申请号：US17451604
申请日：2021-10-20
摘要： A machine learning model trained to predict offset pressure (“predictor”) is used to generate a pumping schedule that mitigates well interference during a hydraulic fracturing treatment operation. Diverse candidate pumping schedules are generated according to pumping schedule constraints. Feature inputs are populated with the candidate pumping schedules and with static and dynamic features related to the operation. The feature inputs are fed into one or more instances of the predictor to obtain offset pressure predictions at a prediction horizon for which the predictor was configured. The offset pressure predictions are evaluated to identify the one that best satisfies a well interference mitigation objective and the corresponding candidate pumping schedule is identified for well interference mitigation.
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公开(公告)号：US20210073342A1
公开(公告)日：2021-03-11
申请号：US16564937
申请日：2019-09-09
IPC分类号： G06F17/50 , G06F17/18 , E21B47/06 , E21B47/10 , E21B43/267
摘要： The disclosure presents a process for calibrating a diversion model for a treatment stage of a hydraulic fracturing well site. The process can pump a portion of the proppant into the wellbore, flush the wellbore with clean HF fluid, and then perform a diagnostic test to determine a near-wellbore (NWB) flow resistance parameter. Next, diverter material can be distributed into the wellbore and the amount of diverter material delivered to each active perforation cluster can be estimated. A second diagnostic test can be performed followed by computing diversion model parameters such as a near-wellbore zone length parameter for perforation clusters capable of receiving HF fluid. In another aspect, a system is disclosed that can direct operations of a well site pump and collect data from surface and downhole diagnostic sensors, and then use the collected data for the diversion model calibration process.
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公开(公告)号：US10310114B2
公开(公告)日：2019-06-04
申请号：US15304990
申请日：2014-05-19
发明人： Baidurja Ray , Avi Lin , Jianfu Ma
摘要： In some aspects, a closed boundary is computed based on locations and location-uncertainty domains of microseismic events associated with a stimulation treatment of a subterranean region. The closed boundary encloses the locations and respective location-uncertainty domains of multiple microseismic event data points. An error bound of a stimulated reservoir volume (SRV) for the stimulation treatment is identified based on the closed boundary.
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公开(公告)号：US20170299742A1
公开(公告)日：2017-10-19
申请号：US15510029
申请日：2014-10-13
发明人： Baidurja Ray , Avi Lin , Jianfu Ma
CPC分类号： G01V1/306 , G01V1/288 , G01V99/005 , G01V2210/646 , G01V2210/663 , G06F17/5009
摘要： A method for improved data-driven estimation of a stimulated reservoir volume may generate an optimized surface that encloses a set of data points including microseismic event data corresponding to a treatment of a subterranean formation. A Delaunay triangulation may be performed on the set of data points to generate a set of polytopes. A Voronoi polygon may be generated about each data point and used to obtain a local density measure that is locally and adaptively determined for each data point. Based on the local density measure, polytopes in the set of polytopes may be discriminated for inclusion in the optimized surface.
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公开(公告)号：US20170139066A1
公开(公告)日：2017-05-18
申请号：US15304990
申请日：2014-05-19
发明人： Baidurja Ray , Avi Lin , Jianfu Ma
CPC分类号： G01V1/288 , G01V1/34 , G01V1/42 , G01V2210/1232 , G01V2210/1234 , G01V2210/646 , G01V2210/65 , G01V2210/667
摘要： In some aspects, a closed boundary is computed based on locations and location-uncertainty domains of microseismic events associated with a stimulation treatment of a subterranean region. The closed boundary encloses the locations and respective location-uncertainty domains of multiple microseismic event data points. An error bound of a stimulated reservoir volume (SRV) for the stimulation treatment is identified based on the closed boundary.
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公开(公告)号：US20240084681A1
公开(公告)日：2024-03-14
申请号：US17930584
申请日：2022-09-08
CPC分类号： E21B43/26 , E21B43/129
摘要： The method includes receiving raw data at a cloud service relating to a hydraulic fracturing operation. The raw data can be streamed to the cloud service. The method further includes pre-processing the raw data to generate pre-processed data. The pre-processed data can be ingestible by a cloud-based dashboard. Additionally, the method includes identifying at least one parameter relating to the hydraulic fracturing operation using the pre-processed data. The method can further include determining a difference between the at least one parameter and at least one optimized parameter. Further, the method can include adjusting the hydraulic fracturing operation based the difference between the at least one parameter and the at least one optimized parameter.
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20.发明申请公开(公告)号：US20230066612A1
公开(公告)日：2023-03-02
申请号：US17459581
申请日：2021-08-27
发明人： Sergei Parsegov , Stanley Vernon Stephenson , Tirumani Swaminathan , Daniel Joshua Stark , Baidurja Ray
IPC分类号： E21B43/14 , E21B43/26 , E21B47/06 , E21B47/095 , E21B47/18
摘要： A system is provided including at least one pump for pumping a fluid into a wellbore, a pressure sensor provided at a wellhead of the wellbore for measuring a backpressure of the fluid being pumped into the wellbore, and a diagnostic manager. The diagnostic manager obtains pressure data associated with a pressure signal from the pressure sensor, wherein the pressure data includes pressure measurements of the fluid over a selected time period. The diagnostic manager converts, based on the pressure data, at least a portion of the pressure signal into frequency domain. The diagnostic manager detects a change in frequency of the pressure signal in the Fourier spectrum and determines that a fault associated with the wellbore has occurred based on the changed frequency of the pressure signal.
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