-
公开(公告)号：US20240329270A1
公开(公告)日：2024-10-03
申请号：US18697947
申请日：2022-10-13
CPC分类号： G01V1/42 , G01V1/003 , G01V2200/14
摘要： A method for optimizing a seismic survey design includes obtaining a well trajectory, determining a depth range and a measurement interval for the seismic survey, determining an optimal seismic shot position for each receiver within the depth range using an inverse function, determining one or more potential seismic shot configurations that each include a number of seismic shots, a location for each of the number of seismic shots, and a power of each of the seismic shots, determining an estimate of a data quality for each of the determined one or more potential seismic shot configurations using an objective function, and determining an optimum seismic survey design based on the determined estimated data quality for each of the determined one or more potential seismic shot configurations, wherein the estimated data quality for the optimum seismic survey design is greater than a predetermined minimum threshold.
-
公开(公告)号：US11940583B2
公开(公告)日：2024-03-26
申请号：US17534630
申请日：2021-11-24
CPC分类号： G01V1/42 , E21B47/135 , G01H9/004 , G01V1/201 , G01V1/226 , G01V1/48 , G01V1/52 , G01V2210/121 , G01V2210/1234 , G01V2210/1429 , G01V2210/161 , G01V2210/324
摘要： Various embodiments include apparatus and methods implemented to take into consideration gauge length in optical measurements. In an embodiment, systems and methods are implemented to interrogate an optical fiber disposed in a wellbore, where the optical fiber is subjected to seismic waves, and to generate a seismic wavefield free of gauge length effect and/or to generate a prediction of a seismic wavefield of arbitrary gauge length, based on attenuation factors of a plurality of wavefields acquired from interrogating the optical fiber. In an embodiment, systems and methods are implemented to interrogate an optical fiber disposed in a wellbore, where the optical fiber is subjected to seismic waves, and to convert a seismic wavefield associated with a first gauge length to a seismic wavefield associated with a different gauge length that is a multiple of the first gauge length. Additional apparatus, systems, and methods are disclosed.
-
3.发明公开公开(公告)号：US20230417940A1
公开(公告)日：2023-12-28
申请号：US18348739
申请日：2023-07-07
申请人： Momentum AI, LLC
CPC分类号： G01V1/42 , G01V1/301 , E21B41/00 , E21B43/26 , G01V1/50 , E21B47/095 , E21B49/00 , E21B47/14 , G01V2210/646 , E21B2200/22 , E21B47/06
摘要： This disclosure presents a system, method, and apparatus for preventing fracture communication between wells, the system comprising: a sensor coupled to a fracking wellhead, circulating fluid line, or standpipe of a well and configured to convert acoustic vibrations in fracking fluid in the well into an electrical signal; a memory configured to store the electrical signal; a machine-learning system configured to analyze current frequency components of the electrical signal in a window of time and to identify impending fracture communication between the well and an offset well, the machine-learning system having been trained on previous frequency components of electrical signals measured during previous instances of fracture communication between wells; and a user interface configured to return a notification of the impending fracture communication to an operator of the well.
-
4.发明公开公开(公告)号：US20230350091A1
公开(公告)日：2023-11-02
申请号：US18350960
申请日：2023-07-12
申请人： Momentum AI LLC
CPC分类号： G01V1/42 , G01V1/301 , E21B41/00 , E21B43/26 , G01V1/50 , E21B47/095 , E21B49/00 , E21B47/14 , G01V2210/646 , E21B2200/22 , E21B47/06
摘要： This disclosure presents systems, methods, and apparatus for determining cluster efficiency during hydraulic fracturing, the method comprising: measuring acoustic vibrations in fracking fluid in a fracking wellhead, circulating fluid line, or standpipe of a well; converting the acoustic vibrations into an electrical signal in a time domain; recording the electrical signal to memory; analyzing the electrical signal in the time domain for a window of time and identifying two amplitude peaks corresponding to a fracture initiation; measuring a time between the two amplitude peaks; dividing the time by two to give a result; multiplying the result by a speed of sound in the fracking fluid to give a distance between the fracture initiation and a plug at an end of a current fracking stage of the well; and returning a location of the fracture initiation to an operator based on the distance between the fracture initiation and the plug.
-
公开(公告)号：US11726223B2
公开(公告)日：2023-08-15
申请号：US17291040
申请日：2020-12-10
申请人： Origin Rose LLC
CPC分类号： G01V1/42 , E21B41/00 , E21B43/26 , E21B47/095 , E21B49/00 , G01V1/301 , G01V1/50 , E21B47/06 , E21B2200/22 , G01V2210/646
摘要： This disclosure presents a system, method, and apparatus for preventing fracture communication between wells, the system comprising: a sensor coupled to a fracking wellhead, circulating fluid line, or standpipe of a well and configured to convert acoustic vibrations in fracking fluid in the well into an electrical signal; a memory configured to store the electrical signal; a machine-learning system configured to analyze current frequency components of the electrical signal in a window of time and to identify impending fracture communication between the well and an offset well, the machine-learning system having been trained on previous frequency components of electrical signals measured during previous instances of fracture communication between wells; and a user interface configured to return a notification of the impending fracture communication to an operator of the well.
-
公开(公告)号：US20230193746A1
公开(公告)日：2023-06-22
申请号：US18066545
申请日：2022-12-15
IPC分类号： E21B47/107 , G06F30/20 , E21B47/135 , E21B43/263 , G01V8/16 , G02B6/44
CPC分类号： E21B47/107 , G06F30/20 , E21B47/135 , E21B43/263 , G01V8/16 , G02B6/4415 , G01V2210/1425 , G01V1/42
摘要： A method, downhole tool, and system, of which the method includes deploying a perforation charge into a wellbore, signaling the perforation charge to detonate, deploying a cable into the wellbore, determining a fluid flow rate at a predetermined location in the wellbore using the cable, and determining whether the perforation charge detonated at the predetermined location based on the fluid flow rate.
-
公开(公告)号：US11681064B2
公开(公告)日：2023-06-20
申请号：US16596205
申请日：2019-10-08
CPC分类号： G01V1/42 , G01V1/303 , G01V1/50 , G01V2210/161 , G01V2210/614 , G01V2210/6226 , G01V2210/63
摘要： Disclosed are methods, systems, and computer-readable medium to perform operations including: receiving seismic data acquired by at least one receiver of a geologic survey system configured to perform a geologic survey of a subterranean formation, wherein the seismic data is associated with reflected acoustic signals generated by at least one source of the geologic survey system; calculating a ground force signal by stacking the acoustic signals generated by the least one source; calculating, using the ground force signal, a time and depth variant quality factor (Q) of the subterranean formation; and compensating, based on the time and depth variant Q, attenuation in the seismic data.
-
公开(公告)号：US20180136354A1
公开(公告)日：2018-05-17
申请号：US15737330
申请日：2015-06-17
申请人： Read AS
CPC分类号： G01V1/52 , G01V1/181 , G01V1/226 , G01V1/42 , G01V11/002 , G01V11/005 , G01V2210/161
摘要： Method and device for performing vertical seismic profiling (VSP) in a borehole with a seismic device (10) comprising an elongated cable (20) with conductors (30) for transporting power and at least one communication line (40) for carrying signals. The device further comprises at least one connection point (50) placed along the elongated cable (20), where the connection point (50) comprises wireless power providing means (60) and communication means (65) that are connected to said conductors (30) and communication line (40) in the elongated cable (20), and at least one sealed seismic module (70) fixed to the at least one connection point (50), the seismic module (70) comprises a geophone (75), electronics (80) for detecting and transferring seismic signals, power receiving means (85) for wirelessly receiving power from the connection point (50) and means for wirelessly transmitting seismic signals to the communication line (40) via the communication means (65) comprised in the connection point (50).
-
公开(公告)号：US20180031734A1
公开(公告)日：2018-02-01
申请号：US15664292
申请日：2017-07-31
申请人： CHEVRON U.S.A. INC.
发明人： Sudipta SARKAR
CPC分类号： G01V13/00 , G01V1/226 , G01V1/42 , G01V1/44 , G01V1/52 , G01V2210/121 , G01V2210/123 , G01V2210/1295 , G01V2210/1299
摘要： A system is described for calibrating fiber optic well measurements including a fiber optic waveguide disposed proximal to a wellbore, a sensor coupled to the fiber optic waveguide, the sensor configured to record a plurality of signals detected by the waveguide, and a computer system configured to calibrate the signals from the waveguide by filtering out one or more background acoustic responses from the plurality of signals. A method for calibrating the signals is also described.
-
公开(公告)号：US09869795B2
公开(公告)日：2018-01-16
申请号：US14907790
申请日：2013-08-30
发明人： Mikko Jaaskelainen
摘要： Systems and methods for distributed acoustic sensing based on coherent Rayleigh scattering are disclosed herein. A system comprises a pulse generator, an optical fiber coupled to the pulse generator, an interferometer coupled to the optical fiber, a photodetector assembly coupled to the interferometer, and an information handling system, which activates two optical gain elements so as to vary the optical path length of the interferometer. A method comprises sending an optical pulse down an optical fiber, splitting backscattered light from the optical pulse into a first backscattered pulse and a second backscattered pulse, activating a first optical gain element and a second optical gain element, sending the first backscattered pulse into a first arm of an interferometer, sending the second backscattered pulse into a second arm of an interferometer, combining the first and second backscattered pulses to form an interferometric signal, and receiving the interferometric signal at a photodetector assembly.
-
-
-
-
-
-
-
-
-
搜索结果
695 条记录 (耗时 0.023 秒)
