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WO/2021/205327A1 |
A method is described for inverting seismic data including obtaining well logs representative of subsurface volumes of interest; generating an amplitude variation with angle (AVA) database from the well logs by seismic modeling, wherein ...
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WO/2021/207506A1 |
Methods and systems, including computer programs encoded on a computer storage medium can be used for an integrated methodology that can be used by a computing system to automate processes for generating, and updating (e.g., in real-time...
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WO/2021/207102A1 |
Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously identify location(s) of construction - or other activities - taking place along fiber optic cable rout...
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WO/2021/202072A1 |
Aspects of the present disclosure describe hybrid distributed fiber optic sensing systems, methods, and structures that advantageously are extensions of existing fiber optic infrastructure and provide distributed fiber optic sensing (DFO...
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WO/2021/202512A1 |
A method for acoustic geosteering in directional drilling is provided. The method includes measuring a response from a fiber-optic distributed acoustic sensor disposed on a bottom hole assembly and determining a location of the bottom ho...
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WO/2021/196815A1 |
A strengthened-type hydrophone measurement apparatus based on a low bending loss chirped grating array optical fiber, comprising an interference-type distributed optical fiber grating acoustic sensing interrogator (1), a low bending loss...
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WO/2021/196367A1 |
The present invention relates to earthquake-resistance technical analysis methods. The performance-related ground motion risk analysis method employing a three-layer dataset-based neural network of the present invention comprises the fol...
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WO/2021/202582A1 |
Embodiments provide for a method that utilizes the azimuthally spaced receivers of a sonic logging tool. Signals from monopole and dipole sources are reflected from the geologic interfaces and recorded by arrays of receivers of the same ...
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WO/2021/201886A1 |
A method for identifying one or more imaging properties. The method may comprise identifying one or more candidate mud constants, taking one or more measurements from a borehole with a downhole tool to form an image log, inputting into a...
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WO/2021/201885A1 |
Disclosed is a system and method for calculating a formation shear-wave slowness. The system includes a borehole sonic logging tool and an information handling system. The borehole sonic logging tool may comprise a transmitter comprising...
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WO/2021/202239A1 |
A computer system receives a post-stack time-domain image having a first spectrum and representing one or more subsurface structures. The computer system reconstructs an increased-frequency version of the post-stack time-domain image usi...
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WO/2021/194614A1 |
A packing module includes a volumetrically efficient structure for separately retaining sensors and a cable of a sensor array. The packing module includes a tray that supports the sensors and a retaining leaf arrangement that extends out...
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WO/2021/191722A1 |
A method is described for generating a subsurface model using stochastic full waveform inversion by receiving a seismic dataset representative of a subsurface volume of interest; performing stochastic full waveform inversion of the seism...
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WO/2021/194467A1 |
Hydrocarbon exploration and extraction can be facilitated using machine-learning models. For example, a system described herein can receive seismic data indicating locations of geological bodies in a target area of a subterranean formati...
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WO/2021/194933A1 |
A machine-implemented method, at least one non-transitory computer-readable medium storing instructions, and a computing system are provided for attenuating noise. A computing system receives a seismic image and generates a first image u...
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WO/2021/191846A1 |
Aspects of the subject technology relate to a method of correcting sensor position. The method comprises transmitting one or more first pulses of a first frequency range towards a first portion of a seabed and one or more second pulses o...
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WO/2021/194524A1 |
A method may include obtaining an initial velocity model regarding a subterranean formation of interest. The method may further include generating various seismic migration gathers with different cross -correlation lag values based on a ...
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WO/2021/185634A1 |
Shown is a device for pulling in and letting out a towed antenna (22) from a watercraft (20). The device has a towed antenna arrangement (24) which comprises the towed antenna (22), the towed antenna (22) having a plurality of interconne...
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WO/2021/183494A1 |
Methods, apparatus, and systems for mapping surface and near surface features and processing artifacts from stacked and processed seismic data are disclosed. In some implementations, a computer system receives a three-dimensional (3D) se...
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WO/2021/183498A1 |
A system for seismic imaging of a subterranean geological formation, the system includes a receiver configured to obtain seismic data comprising a data volume representing a post-stacked image. The system includes a filtering module conf...
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WO/2021/182966A1 |
The present invention relates to the field of marine towing operations for marine seismic survey systems and seismic data gathering. More specifically, the present invention relates to seismic sources and receiver sensor cables, streamer...
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WO/2021/183336A1 |
The present disclosure provides a workflow for modelling EOR flooding operations performed on a reservoir by separating front tracking from the reservoir simulation process, so that the front's position and topology evolves in parallel w...
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WO/2021/183181A1 |
Subsurface exploration using In-Situ tests such as SPT, CRT, CPTu, DMT, and PMT predicts inaccurately engineering properties of soils and intermediate geomaterials and thereby predicts incorrect load-settlement relationship of piles; var...
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WO/2021/183904A1 |
Systems and methods develop a three-dimensional model of a subterranean formation based on vertical seismic profiles at a plurality of well locations. This approach can include receiving seismic data for the subterranean formation includ...
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WO/2021/182965A1 |
The present invention relates to the field of marine towing operations for marine seismic survey systems and seismic data gathering. More specifically, the present invention relates to seismic sources and receiver sensor cables, streamer...
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WO/2021/183950A1 |
Techniques for determining a geologic parameter include determining, with an analytical solution, a change to at least one control point of a boundary of a control volume defined in a subterranean formation that is caused by a hydraulic ...
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WO/2021/177983A1 |
A distributed acoustic system (DAS) may comprise an interrogator and an umbilical line attached at one end to the interrogator, a downhole fiber attached to the umbilical line at the end opposite the interrogator. The interrogator may fu...
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WO/2021/175665A1 |
The invention relates to a waterborne sound transducer (20) for receiving or transmitting waterborne sound (22) comprising a waterborne sound transducer (24) and a printed circuit board (26). The waterborne sound transducer (24) is desig...
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WO/2021/174434A1 |
A surface wave exploration method for jointly extracting Rayleigh wave frequency dispersion features from a seismic electric wave field, comprising the steps of: acquiring jointly collected data, wherein the jointly collected data compri...
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WO/2021/178067A1 |
A sensor system includes a triplet element including a first hydrophone, a second hydrophone, and a third hydrophone configured to receive an incoming signal at a first phase, a second phase, and a third phase, respectively, the first to...
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WO/2021/177982A1 |
A method may include obtaining various well logs or various core samples regarding a geological region of interest. The method may further include determining various permeability values, various porosity values, and various dolomite vol...
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WO/2021/178942A1 |
A method can include receiving seismic survey data of a subsurface environment from a seismic survey that includes a source arrangement of sources that is spatially denser than a receiver arrangement of receivers; processing the seismic ...
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WO/2021/176289A1 |
A method (100) for monitoring the precipitation of magnetospheric particles, comprising the steps of: detecting (101) charged magnetospheric particles by at least one particles detector (10) installed on board at least one satellite vehi...
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WO/2021/178286A1 |
A sensor package may include a sensor housing unit and a first sensor that may acquire a first set of measurements within a first measurement range. The sensor package may also include a second sensor configured to acquire a second set o...
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WO/2021/178412A1 |
A method for digitizing image-based data includes receiving an image file including one or more target objects, generating an intermediate image by removing noise from the image file using a denoising machine learning model, identifying ...
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WO/2021/173893A1 |
A sensor for obtaining downhole data includes a first piezoelectric layer (302). The sensor also includes a second piezoelectric layer (304) having a trench (320) extending a depth (322) below a surface (324) of the second piezoelectric ...
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WO/2021/174178A1 |
A method for seismic processing includes receiving measured seismic data collected by recording seismic waves that propagate through a subterranean domain, simulating synthetic seismic data using a model of the subterranean domain, gener...
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WO/2021/170458A1 |
A system for evaluating a characteristic of a portion of a building space, such as a room, may be provided. The system includes pairs of speakers and microphones associated with detection areas and forming audio multipath transmission ch...
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WO/2021/173645A1 |
A method for preparing a borehole for fracturing including inserting an assembly comprising a fracture plug, a setting tool, a perforating gun and a controller into a borehole, delivering the assembly to a target location, automatically ...
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WO/2021/166946A1 |
The purpose of the present invention is to provide a method of a practical level for performing sensor fusion of a plurality of vibration sensors such as a seismograph. In one example, the present invention aims to expand a dynamic range...
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WO/2021/165660A1 |
A computer-implemented method is provided for interpreting geophysical data utilising an Artificial Neural Network (ANN), performed by electronic operations executed by a computing device, comprising: performing a training processing ste...
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WO/2021/168033A1 |
Systems and methods are provided for generating a model for detection of seismic events. In this regard, one or more processors (220) may receive from one or more stations (110, 120, 130) located along an underwater optical route (100), ...
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WO/2021/165789A1 |
A method is described for seismic imaging that receives a field seismic dataset and a synthetic seismic dataset wherein the synthetic seismic dataset is generated with no or known attribute variation with angle or other spatial coordinat...
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WO/2021/167625A1 |
A method and system for estimating a full elastic tensor. The method may comprise taking a measurement for compressional wave sonic data and cross-dipole shear data with a sonic logging tool at a first location as cross-dipole data, proc...
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WO/2021/165700A1 |
A long range optical fiber sensor such as a distributed acoustic sensor has a sensing fiber located remotely from the interrogator, with a length of transport fiber path connecting the two. Because no sensing is performed on the transpor...
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WO/2021/161058A1 |
The present invention relates to a marine acquisition system (14) for acquiring at least one physical and/or chemical parameter of a region of interest (10) of a body of water (12), the system (14) being intended to be towed by a vessel ...
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WO/2021/163510A1 |
A sensor retrieval system includes a self-propelled unmanned ground vehicle (UGV) having a control system including a navigation controller, an excavator controller and an extractor controller. The navigation controller has instructions ...
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WO/2021/162885A1 |
A drilling detection system (104) may include a drilling detection circuitry including one or more detection processors (300) configured to receive a vibration signal (124) indicative of vibration associated with a drilling machine (102)...
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WO/2021/161106A1 |
A control unit can comprise a housing and circuitry disposed within the housing. The circuitry can comprise a communications module, a memory, and a processor in communication with the memory and the communications module. A power source...
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WO/2021/162570A1 |
The invention relates to the field of oil production, and more particularly to the field of monitoring the composition of an oil and gas mixture entering a wellbore in an inflow region, and can be used for diagnosing the operation of an ...
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