... attenuation have been key to provide the desired level of Signal-to-Noise ratio and achieve high vertical resolution. The project is also part of a broader work that aims to cover the Abu Dhabi Emirate with high-density surface seismic. Hence, the survey was designed and processed to deliver seamless merge...

... (OBC) in an orthogonal cross-spread design. In vintage processing PZ summation was used to obtain the upgoing wavefield with the receiver ghost removed. 1D deconvolution was then applied to attenuate receiver-side pegleg multiples. Strong residual multiple energy nonetheless remained in the overburden...

... multiphase flow reservoir surveillance antenna fluid dynamics pipeline production control multiphase flowmeter detection holdup accuracy spectrometer magnet mri egg probe frequency smart amplitude attenuation valve requirement sequence acquisition Introduction Oil & gas...

... regularized to radial geometry using 5D Matching Pursuit with Fourier Interpolation (MPFI). This has provided 12 well sampled azimuth sectors that went through surface consistent processing, multiple attenuation, and residual noise attenuation. Near surface model was built using data-driven image-based static...

... simultaneous shooting required elaborate deblending, but we managed these steps with existing tools. The dense 3D receiver grid actually enabled the use of interferometry-based ground-roll attenuation, a technique that is rarely used with conventional data due to inadequate sampling, but that resulted...

... and flexural attenuation properties of cement downhole as well as acoustic impedance and microdebonding feature of the cement. Separation between average shear and flexural attenuation curves may indicate presence of microannulus depending on the extent of the separation without any requirement of additional...

... application battery pack telemetry system mwd attenuation measurement while drilling pressure transient analysis pressure wave production application repeater permanent downhole gauge july 2021 information gauge wireless gauge wireless telemetry telemetry Background Production...

... attenuation to attenuate residual noise. This was followed by high resolution Radon anti-multiple to attenuate residual surface multiples and Extended interbed multiple prediction to attenuate interbed multiples. In addition, Offset dependent amplitude and spectral balancing were applied to maintain...

... velocity and attenuation maps of the surveyed area. In parallel, 3D numerical simulations were conducted using a commercially available finite element modelling (FEM) package. The simulation results were compared and validated with the experimental results. The simulations are in overall agreement...

... effectively driving the linear noise attenuation parameter setup. artificial intelligence attenuation reservoir characterization cluster map upstream oil & gas heterogeneous media shot gather abu dhabi phase velocity machine learning frequency seismic data wave mode noise society...

... attenuation thickness anhydrite receiver manosque corrosion slurry sulfate attack acoustic impedance Introduction This diagram has the ambition of demonstrating stability and safety by consolidating most information on integrity elements: geology, well barrier element acceptance table compiled...

... objectives and reduce uncertainties within the allotted turnaround time. Octave panel analysis after all noise attenuation steps Attenuation of unwanted energy in seismic records, such as noise and multiples, must ensure that there is no signal leakage in the noise model and that all primaries...

... acoustic measurements as a method to determine surfactant concentration for quality assessment of chemical injections on-site. The advantage of ultrasound is that it can characterize both concentrated systems and low dispersed phase volumes. In this study, we acquired the sound attenuation of an amphoteric...

... problem in land seismic data processing. Heterogeneities and discontinuities in the near surface typically generate scattered energy that cannot be easily separated from the underlying signal using traditional noise attenuation methods. Current approaches that attempt to deal with this scattering include...

... to travel to the cement-formation interface and return to the detector without being completely attenuated. For single casing configurations, results indicate that cement channels produce distinguishable results from intact cement. For through-tubing logging it cannot be concluded that detected results...

.... trajectory design attenuation investigation log analysis upstream oil & gas polarization horn workflow well planning shoulder bed effect induction tool resistivity invasion symposium resistivity tool resistivity log well logging induction log resistivity modeling formation evaluation...

... relevant for offshore exploration targets in the Northern Emirates, a region that has recently seen a growth in interest from local and international operators. radial symmetry structural definition regularization geology Reservoir Characterization attenuation northern emirates national oil...

... During the re-processing, we took a cascaded approach to attenuate the linear noise by evaluating the noise character and applying a mild noise attenuation process at each step. On the recorded data, we observed aliased linear noise, due to the insufficient spatial sampling and the steep slopes...

... locations permits to estimate the fluid channel continuity (correlation value), the sound velocity (time of correlation peak), and the sound attenuation (amplitude versus frequency amplitude decay). A portion of the data during normal operation is used for training and tuning a reference model. After...

... (NCS) with azimuthal uncertainties in the mud acoustic impedance to provide reliable annulus interpretation. These measurements correlate and are validated using sonic logs as well as flexural attenuation measurements, thus providing confidence in the results and decisions. The case studies compare...