On the inversion of time-lapse seismic data

Author: xcdv

August undefined, 2024

WebIntegration of Leverett J-function analysis with Gassmann’s equations allows the time-lapse change of seismic reflectivity to be expressed explicitly in terms of the change of the free water-contact level, reservoir porosity, and initial water saturation. Given the initial three-dimensional distribution of water saturation and porosity and a well-log derived height … Web1 de jan. de 2010 · The Born approximation for sequential inversion of timelapse seismic waveforms at different time steps we have developed in this study (see also [40]), and …

Inversion of Time-Lapse Seismic Reservoir Monitoring Data Using ...

WebA new, fast inversion approach for time-lapse seismic data is developed where the uncertainty of the inversion results is an integral part of the solution. The inversion … Web31 de mar. de 2006 · Injection and movement/saturation of carbon dioxide (CO2) in a geological formation will cause changes in seismic velocities. We investigate the capability of coda-wave interferometry technique for estimating CO2-induced seismic velocity changes using time-lapse synthetic vertical seismic profiling (VSP) data and the field … naxos weather in april

Robust joint full-waveform inversion of time-lapse seismic data …

Web22 de jan. de 2003 · A time-lapse inversion study also relies on how the two datasets in Equation (1.2) are integrated during the inversion. For example, Sarkar et al. (2003) … WebThe time-lapse seismic data is usually used to monitor changes in reservoir conditions (Schmitt, 2004). The most important a priori information of time-lapse data is that the … Webproduction and time-lapse seismic data of the Norne field. The contributions from this research include a systematic workflow for joint inversion of time-lapse seismic and production data that can be and has been practically applied to a real field. Better reservoir models, constrained to both data will in turn lead to better reservoir forecasts naxpon film

Nonlinear inversion for estimating reservoir parameters from time-lapse …

Blocky inversion of time‐lapse seismic AVO data SEG Technical ...

Web14 de fev. de 2024 · One of the most commonly deployed monitoring techniques is time-lapse seismic reservoir monitoring (also known as 4-D seismic), which involves … WebAll modern seismic inversion methods require seismic data and a wavelet ... The logs are then converted to time, filtered to approximate the seismic bandwidth and edited for ... marktec international incWebWe consider time-lapse seismic amplitude versus offset (AVO) inversion for the reservoir properties porosity and water saturation, with a focus on monitoring the evolution of water saturation in a dynamic setting of ongoing production. We operate in a Bayesian framework based on the integration of seismic AVO modeling and rock physics relations. One … naxpro-truss fd 14

"WebAs the number of time-lapse (4D) seismic applications increases; so do the prospects for quantitative estimates of dynamic reservoir properties, such as fluid saturation and … " - On the inversion of time-lapse seismic data

On the inversion of time-lapse seismic data

[2304.05592] Learned multiphysics inversion with differentiable ...

WebUsing the inversion algorithm, we inverted the time-lapse EM tomography data to construct true resistivity models of polymer-injected reservoirs and analyze differences between them. From the time-lapse inversion results, we can observe the differences in time lapse responses between using fresh water and salt water have been decreased in … WebBayesian Inversion of Time-lapse Seismic Waveform Data Using an Integral Equation Method. By K. S. Eikrem , M. Jakobsen and G. Nævdal. Publisher: European Association …

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Webmethodologies that invert time-lapse seismic data, based on a Deterministic or Bayesian inversion framework. This thesis introduces a new iterative geostatistical time-lapse seismic inversion methodology. The objective of this work is the development and implementation of a new methodology able to reproduce Web15 de jan. de 2015 · Time-lapse (TL) seismic or 4D seismic has great potential in monitoring and interpreting time-varying variations in reservoir fluid properties during …

WebTime-lapse seismic monitoring during CO 2 injection is still in its infancy. Seismic monitoring requires knowledge of the rock and fluid properties of the oil reservoir to track changes in CO 2 saturation and pressure over time. Despite the growing importance of CO 2 for EOR projects and geologic storage and sequestration, very little is understood … Web14 de dez. de 2024 · Abstract: Time-lapse (4-D) seismic exploration is one of the essential means for accurately reconstructing the underground geological model, enhancing …

WebIn this paper we describe a model for blocky inversion of time‐lapse seismic AVO data. The blocky model is based on a prior with heavy tails for the vertical gradients in … WebWe present a technique for reconstructing subsurface velocity model changes from time-lapse seismic survey data using full-waveform inversion (FWI). The technique is based on simultaneously inverting multiple survey vintages, with model difference regularization using the total variation (TV) seminorm.

Web4 de ago. de 2014 · Download PDF Abstract: We present a technique for reconstructing subsurface velocity model changes from time-lapse seismic survey data using full …

Webposterior distribution of relative changes in elastic properties is estimated from time-lapse partial-stacked seismic data using the Bayesian time-lapse inversion proposed by Buland and El Ouair (2006)), that combines the convolutional model with Aki-Richards linearized approximation of Zoeppritz equations (see Buland and Omre (2003)). mark tech polymers private limitedWebEffective reservoir monitoring requires time-lapse reservoir information throughout the interwell volume. The ability to understand and control reservoir behavior over the course of production allows for optimization of reservoir performance and production strategies. Good monitoring information makes it possible to improve the timing and location of new … naxos winter naxos william grant stillWebWave-equation-based inversion. Thanks to its unmatched ability to resolve CO 2 plumes, active-source time-lapse seismic is arguably the preferred imaging modality when monitoring geological storage (Ringrose 2024).In its simplest form for a single time-lapse vintage, FWI involves minimizing the \(\ell_2\)-norm misfit/loss function between … naxos weather in mayWeb4 de nov. de 2024 · Time-lapse (4D) seismic inversion aims to predict changes in elastic rock properties, such as acoustic impedance, from measured seismic amplitude vari. ... naxriscv githubWeb13 de abr. de 2024 · For either oil and gas applications or CO storage, seismic data are a valuable source of information for tracking changes in elastic properties which can be … mark tedeschi missing presumed deadWeb14 de fev. de 2024 · Then we demonstrate the use of a CycleGAN-based workflow for 4-D seismic data inversion in section 3. Finally, conclusions and summaries are provided in … marktec technology limited