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公开(公告)号：US12130399B2
公开(公告)日：2024-10-29
申请号：US18045656
申请日：2022-10-11
摘要： Methods and systems for measuring cluster efficiency for stages of wellbores are provided herein. One method includes selecting a frequency band for generating broadband tube waves within the fluid column of the wellbore and generating the broadband tube waves within the fluid column of the wellbore using a pressure pulse generator that is hydraulically coupled to the wellbore. The method also includes recording data corresponding to the broadband tube waves and reflected broadband tube waves using pressure receivers that are hydraulically coupled to the wellbore. The pressure receivers are arranged into arrays with two or more pressure receivers in each array. The data recorded by the pressure receivers relate to characteristics of reflectors (including perforation cluster/fracture interfaces) within the wellbore. The method further includes processing the recorded data using interferometry and performing full waveform inversion(s) on the processed data to determine frequency-dependent, complex-valued reflection coefficients at each perforation cluster/fracture interface.
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公开(公告)号：US12055672B2
公开(公告)日：2024-08-06
申请号：US17288622
申请日：2019-10-24
发明人： Ting Lei , Sandip Bose , Smaine Zeroug
CPC分类号： G01V1/50 , E21B47/14 , G01V1/46 , G01V2210/1429 , G01V2210/6169 , G01V2210/624 , G01V2210/74
摘要： A method, computer program product, and computing system for generating high resolution slowness logs. The method computer program product, and computing system includes receiving a plurality of sonic logs from at least one sensor array and generating at least one high-resolution slowness log from the plurality of sonic logs based upon, at least in part, monopole and dipole data from the plurality of sonic logs.
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公开(公告)号：US12037887B2
公开(公告)日：2024-07-16
申请号：US17900335
申请日：2022-08-31
发明人： Jiajun Zhao , Ruijia Wang , Jonathan Brenda Sue
IPC分类号： G01V1/46 , E21B47/005 , G01V1/50
CPC分类号： E21B47/005 , G01V1/50
摘要： Aspects of the subject technology relate to systems and methods for identifying the quality of cement bonding of an exterior surface of a wellbore casing to an Earth formation. Methods of the present disclosure may allow for bond indexes to be identified in real-time as a cementing operation is performed even when tools that perform the cementing operation generate acoustic noise that interfere with measurements used to evaluate cement bonding quality. These methods may include transmitting acoustic signals, receiving acoustic signals, filtering the received acoustic signals, identifying magnitude and attenuation values to associate with the received acoustic signals, and comparing trends in the magnitudes with the identified attenuation values. These methods may also include correcting attenuation values associated with measured data based on a set of correction rules such that bond indexes can be identified. Such correction rules may be associated with data generated by a computer model.
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4.发明授权公开(公告)号：US12032112B2
公开(公告)日：2024-07-09
申请号：US17646732
申请日：2022-01-03
CPC分类号： G01V1/46 , G01V1/52 , G06N3/08 , G01V2210/542
摘要： A model is used to generate corrections to mitigate ideal condition artifacts in acoustic property values of an annular material in a cased wellbore. A mathematical model that generates acoustic property values at ideal conditions introduces artifacts into the acoustic property values. Acoustic measurements of an annular material are used to generate features that represent wellbore conditions and are not accounted for in the mathematical model that generates acoustic property values. A model will generate corrections for acoustic property values of an annular material with the features to yield a more accurate acoustic property profile for the annular material of a cased hole.
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公开(公告)号：US20240219599A1
公开(公告)日：2024-07-04
申请号：US18150174
申请日：2023-01-04
发明人： Changhua ZHANG , Mingqiu LUO , Min ZHOU , Bin YU
摘要： Method and apparatus for performing a seismic full waveform inversion independent of a source wavelet to generate a final velocity model of subsurface formations of a survey region are provided. The method includes positioning seismic data recording sensors in the survey region; blasting at points of incidence in the survey region to generate seismic waves; and sensing and recording the seismic waves using the seismic data recording sensor. The recorded seismic waves are seismic data. The method further includes transmitting the seismic data to a computer system including one or more memories and storing the seismic data in one or more memories; storing a source wavelet in the one or more memories; performing, by the computer system, a forward modeling operation using the source wavelet; and generating, by the computer system, the final velocity model for the seismic full waveform inversion using the forward modeling operation.
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公开(公告)号：US11994642B2
公开(公告)日：2024-05-28
申请号：US17628611
申请日：2019-08-30
IPC分类号： G01V1/50 , E21B47/005 , E21B49/00 , G01V1/46 , G01V1/52
CPC分类号： G01V1/50 , E21B47/005 , E21B49/00 , G01V1/46 , G01V1/52 , G01V2210/1299 , G01V2210/1425 , G01V2210/1429 , G01V2210/32
摘要： Apparatus, methods, and systems for determining acoustic velocity behind casing or tubing in a subterranean wellbore. A method may include obtaining a plurality of waveform data sets corresponding to a plurality of propagation path regimes and obtaining a total wavefield across the receiver array. The method may also include determining a Green's function representing each of the plurality of propagation path regimes and determining a noise wavefield by convolving the Green's functions and a known transmitted pressure signal corresponding to the plurality of waveform data sets. The method may also include generating a reduced-noise wavefield by subtracting the noise wavefield from the total wavefield and estimating the acoustic velocity of a formation behind the casing or tubing from the reduce-noise wavefield.
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公开(公告)号：US11970931B2
公开(公告)日：2024-04-30
申请号：US17336155
申请日：2021-06-01
发明人： Yao Ge , Ho Yin Ma , Ruijia Wang , Jing Jin , Brenno Caetano Troca Cabella , Xiang Wu
IPC分类号： G01V1/46 , E21B47/002 , E21B47/005 , E21B47/007 , E21B47/085 , E21B47/14 , G01V1/00 , G01V1/30
CPC分类号： E21B47/005 , E21B47/0025 , E21B47/007 , E21B47/085 , E21B47/14 , G01V1/001 , G01V1/30 , G01V2200/16
摘要： A method and system for identifying bonding between a material and tubing. The method may include disposing an acoustic logging tool in a wellbore, wherein the acoustic logging tool comprises a transmitter, a receiver, or a transceiver, broadcasting a shaped signal with the transmitter such that the shaped signal interacts with a boundary of a casing and a material and recording a result signal from the boundary with the receiver. The method may further comprise identifying a cut-off time to be applied to the result signal, transforming the result signal from a time domain to a frequency domain, selecting one or more modes sensitive to a bonding at the boundary between the casing and the material, computing a decay rate of the one or more modes that were selected based at least one or more decay curves, and converting the decay rate to a bonding log.
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8.发明公开公开(公告)号：US20240125964A1
公开(公告)日：2024-04-18
申请号：US18046821
申请日：2022-10-14
发明人： Ali Aldawood , Mohammed Almarzoug
CPC分类号： G01V1/46 , E21B47/12 , E21B49/003 , G01V1/226 , G01V2001/526
摘要： A method includes drilling a wellbore into a subsurface using a drill bit and, for each of a plurality of depths of the drill bit in the wellbore, detecting, at each of a plurality of receiver stations located along a fiber optic cable disposed behind a casing string within the wellbore, a seismic signal created by the drill bit drilling the wellbore, sending an optical signal generated by the detection of the seismic signal from each of the plurality of receiver stations to an interrogator, sorting, using a computer processor, the optical signals by receiver station, and determining, using the computer processor, a seismic velocity using first breaks picked from the sorted optical signals.
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公开(公告)号：US20240111068A1
公开(公告)日：2024-04-04
申请号：US17932374
申请日：2022-09-15
发明人： Hikmet ANDIC , Stephane HOAREAU , Arsene VILLEMIN
CPC分类号： G01V1/50 , G01V1/18 , G01V1/46 , G01V1/523 , G01V2210/624
摘要： A system including a sensor housing including a channel, and cantilever beam connected to the sensor housing and disposed within the channel. The system also includes an actuator connected to the cantilever beam and configured to cause the cantilever beam to vibrate. A sensor is connected to the cantilever beam and is configured to generate a first signal representing a cantilever beam vibration of the cantilever beam. The system also includes an accelerometer connected to at least one of the sensor and the sensor housing, the accelerometer configured to generate a second signal representing an external vibration of the sensor housing. The external vibration changes the cantilever beam vibration. The system also includes a signal processor configured to receive, as input, the first signal and the second signal and to generate, as output, a filtered signal that reduces an effect of the external vibration on the cantilever beam vibration.
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公开(公告)号：US11946358B2
公开(公告)日：2024-04-02
申请号：US16582727
申请日：2019-09-25
发明人： Luis F. Quintero
IPC分类号： E21B47/005 , G01V1/46 , G01V1/52
CPC分类号： E21B47/005 , G01V1/46 , G01V1/52
摘要： A method for determining the presence and bonding characteristics of elements which may include cement which may be bonded to a pipe string. The method for determining the presence and bonding may comprise disposing an acoustic logging tool in a wellbore, wherein the acoustic logging tool comprises a transmitter and a receiver, broadcasting a pressure pulse with the transmitter into a first material, wherein the pressure pulse reflects off an interface of the first material and a pipe string as a reflected pressure pulse, recording the reflected pressure pulse with a receiver, and determining an integrity of a material using a Quintero Wellbore Index.
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