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WO/2021/163571A1 |
Systems, methods, and computer-readable media for the attenuation of interface waves using polarization filtering applied to recorded single component seismic data are disclosed. A second component tor polarization filtering is created b...
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WO/2021/162987A1 |
A method may include receiving, via a processor, a first set of seismic data acquired via a Wide Azimuth (WAZ) survey. The method may also include receiving a second set of seismic data acquired via an Ocean Bottom Survey (OBS) simultane...
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WO/2021/155754A1 |
A method for removing tube wave interference from optical fiber acoustic wave sensing seismic data. The method comprises: acquiring seismic wave field data which contains tube wave interference and is collected by an optical fiber acoust...
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WO/2021/151193A1 |
The present technology is essentially a portable seismic survey system and method using reflection seismology for mapping subterranean formations. The device includes an upper assembly, a firing pin operably associated with a firing pin ...
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WO/2021/147841A1 |
A method for extracting a downgoing wavelet and attenuation parameters by using vertical seismic data, comprising: performing upgoing and downgoing wave separation processing on vertical seismic wave field data to obtain downgoing longit...
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WO/2021/150929A1 |
A method can include receiving data for a geologic region; based at least in part on the data, selecting a model from a plurality of models using a trained machine learning model, and inverting the data using the selected model to determ...
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WO/2021/150237A1 |
A graphical representation of an image of a subterranean formation along with log properties of the formation provided in a single graphical representation. Logged formation property values are coded into graphic representations of image...
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WO/2021/147529A1 |
A multipoint geostatistical pre-stack inversion method based on an updated theory of permanence of probability ratio, comprising the following steps: organizing data, gridding a work area, distributing well data, assigning an initial att...
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WO/2021/150121A1 |
A method and system for performing onboard compression of seismic data to an optimum level for a given loss of signal quality and transmission of the compressed data to an onshore facility is provided. The compression is done by determin...
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WO/2021/146115A1 |
A subsurface representation may define simulated subsurface configuration of a simulated subsurface region. The simulated subsurface region may include simulated wells, and the simulated subsurface configuration may define simulated corr...
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WO/2021/145778A1 |
A method of estimating the current position of a drill bit or other noise source within a subsurface formation of the Earth. The method comprises collecting seismic data from a plurality of seismic sensors spread across a region of the s...
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WO/2021/146104A1 |
A subsurface representation may define simulated subsurface configuration of a simulated subsurface region. The simulated subsurface region may include simulated wells, and the simulated subsurface configuration may define simulated corr...
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WO/2021/145284A1 |
According to the present invention, by taking into account the plastic deformation of the ground due to an earthquake, the risk level of a building is determined quickly, accurately, and without variation. This building risk level determ...
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WO/2021/146230A1 |
A method for modeling a subterranean volume includes receiving seismic data comprising a signal, generating a semblance in the frequency-wavenumber domain for the seismic data, wherein the semblance represents a coherence of the signal i...
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WO/2021/141916A1 |
Methods include receiving a set of seismic data including a seismic signal generated over the course of a set period of time as a time scale, partitioning the seismic signal into a predetermined integer number greater than one of partiti...
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WO/2021/142064A1 |
A method may include receiving, via a processor, multiple seismic datasets acquired simultaneously in response to multiple seismic waves generated by multiple sources towed by one or more vessels. The multiple seismic datasets may includ...
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WO/2021/142406A1 |
A method for seismic processing includes extracting, using a first machine learning model, one or more seismic features from seismic data representing a subsurface domain, receiving one or more well logs representing one or more subsurfa...
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WO/2021/142151A1 |
A method for weathered layer correction of seismic data includes identifying arrival times in the seismic data corresponding to a weathered layer velocity gradient. A velocity model of the weathered layer is generated using the arrival t...
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WO/2021/141903A1 |
A process for seismic imaging of a subterranean geological formation includes generating a source wavefield from seismic data representing a subterranean formation. The process includes generating a receiver wavefield from the seismic da...
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WO/2021/138027A1 |
A foil system is used with a towed marine cable array to provide downward, upward or lateral lift to the array. The foil system can be coupled with the cable and configured to bias the submerged payload toward a target position. The foil...
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WO/2021/137704A1 |
A method (300) is provided for creating a Virtual RVSP check shot or subsurface image from recordings of a borehole seismic source using seismic interferometry. The method includes reversing the positions of source and receiver for inter...
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WO/2021/134111A1 |
Described embodiments generally relate to a computer-implemented method for modelling a subsurface formation. The method comprises receiving measurement data related to the subsurface formation, the measurement data comprising a pluralit...
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WO/2021/138117A1 |
Systems, methods, and apparatuses directed to determining a long wavelength velocity model using acquired seismic data lacking low-frequency data is disclosed. Determination of the long wavelength velocity model may include generating a ...
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WO/2021/133987A1 |
Systems, methods, and computer-readable media for attenuating guided waves in seismic data using polarization filtering are provided. A raw hydrophone component and raw geophone component of multicomponent seismic data may be scaled usin...
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WO/2021/129381A1 |
Provided are a phased-array acoustic wave advance geological detection system and method of shield tunnelling machine, comprising a phased array acoustic wave transmission and reception device, a probe automatic telescopic device, an aut...
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WO/2021/128857A1 |
A seismic data real-time acquisition device, system and method. The device comprises: a data processing module (10), used for obtaining an initial seismic data packet from a preset seismic acquisition node, carrying out decoding and proc...
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WO/2021/130512A1 |
The invention relates to a method (100) for predicting values of porosity, lithofacies and/or permeability in a studied carbonate reservoir based on seismic data, the method comprising: - Loading (130) an ensemble prediction model, said ...
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WO/2021/129119A1 |
A mounting device (2) and hooking device for hooking a geophone node (100), and a separation device. The mounting device comprises a rope (21), a plurality of hanging rings (22), and hooks (23) having one-to-one correspondence to the han...
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WO/2021/127734A1 |
Apparatus for the measurement of ore in mine haul vehicles is disclosed, the apparatus comprising: a portal, defining a portal zone, wherein a haul vehicle carrying ore is positionable in or movable through the portal zone; and at least ...
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WO/2021/133588A1 |
Systems and methods provide for the reduction of motion at a ground layer of a site due to a seismic event. A predicted seismic motion is obtained for a geological layer at depth and properties of the layers between the ground layer and ...
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WO/2021/124827A1 |
The present invention is an earthquake monitoring system for a boiler, the boiler comprising a furnace and a cage part that is disposed at the back of the furnace. The boiler has vibration detection sensors for detecting: the vibration o...
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WO/2021/120454A1 |
A noise elimination method for a measurement while drilling (MWD) system, comprising: receiving an acquired mud signal and determining characteristic frequency of a periodic noise signal in the mud signal (301); performing a Fourier tran...
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WO/2021/126284A1 |
This disclosure presents a fault prediction system using a deep learning neural network, such as a convolutional neural network. The fault prediction system utilizes as input seismic data, and then derives various seismic attributes from...
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WO/2021/126360A1 |
Seismic data may provide valuable information with regard to the description such as the location and/or change of hydrocarbon deposits within a subsurface region of the Earth. The present disclosure generally discusses techniques that m...
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WO/2021/127160A1 |
Systems and methods for seismic imaging of a subterranean geological formation include receiving parameter data representing one or more parameters of a seismic survey, the seismic data specifying an incident angle and an azimuth angle f...
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WO/2021/127395A1 |
Methods and systems for generating pulses in drilling fluid are described. The methods include driving rotation of a rotor relative to a stator of a pulser assembly in an oscillatory manner. The oscillatory manner includes rotating an ob...
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WO/2021/126946A1 |
A technique facilitates controlled creation of pressure waves in a downhole environment. The technique enables creation of, for example, dynamic underbalance (DUB) pressure waves or dynamic overbalance (DOB) pressure waves which can be u...
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WO/2021/127382A1 |
Methods for full waveform inversion (FWI) in the midpoint-offset domain include using a computer system to sort seismic traces into common midpoint-offset bins (XYO bins). For each XYO bin, a linear moveout correction is applied to a col...
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WO/2021/126814A1 |
Methods and systems for identifying near-surface heterogeneities in a subterranean formation using surface seismic arrays can include: recording raw seismic data using sensors at ground surface; applying a band bass filter to the raw sei...
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WO/2021/127670A1 |
A hierarchical conditioning methodology for building and conditioning a geological model is disclosed. In particular, the hierarchical conditioning may include separate levels of conditioning of template instances using larger-scale data...
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WO/2021/127372A1 |
A method for reducing effects of free surface multiple reflections from seismic signal measurements resulting from seismic energy imparted into the Earth's subsurface from collocated measurements of pressure and vertical component of mot...
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WO/2021/124329A1 |
A method of detecting an earthquake, comprises, by a processor and memory circuitry: obtaining motion data based on data collected by one or more sensors, filtering the motion data to obtain filtered data FD, wherein the filtering compri...
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WO/2021/119426A1 |
A system for seismic imaging of a subterranean geological formation uses a two-way imaging condition. A seismic signal is emitted into a subterranean formation and recorded at receiver(s). Source and receiver wavefields are decomposed in...
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WO/2021/119324A1 |
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 lin...
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WO/2021/115057A1 |
An in-situ monitoring system for geological conditions of a natural gas hydrate reservoir. Said system is composed of a high-resolution multi-channel seismic detection system (1), a battery compartment (2), an automatic cable winding and...
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WO/2021/116800A1 |
A method for waveform inversion, the method including receiving (200) observed data d, wherein the observed data d is recorded with sensors and is indicative of a subsurface of the earth; calculating (204) estimated data p, based on a mo...
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WO/2021/119313A1 |
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 t...
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WO/2021/118842A1 |
Systems, apparatuses, and method of measuring hydrophone impedance are provided herein. A sensor can convert an acoustic wave received via a liquid medium into an electric signal. A signal encoder (402) is coupled with the sensor (300) t...
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WO/2020/076702A9 |
A method of seismic exploration above a region of the subsurface containing structural or stratigraphic features conducive to the presence, migration, or accumulation of hydrocarbons comprises accessing at least a portion of a blended se...
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WO/2021/111092A1 |
The invention relates to a marine craft having a hull (3) and comprising a system for detecting one or more marine mammals. The detection system comprises at least one sensor (2) for receiving acoustic signals and converting them into el...
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