... ABSTRACT Separation of signals is the main task when working with several simultaneously operating sources. In this paper, we propose the use of median filtering and singular decomposition. Both methods are performed in hyperbolic windows. The proposed algorithm demonstrates high efficiency...

... on nonlocal median filter and structure prediction. We use plane-wave prediction to form a structural prediction of seismic traces from neighboring traces. Nonlocal median filter is used to recover edge and reject random noise from different predictions. In comparison with other common denoising methods...

... ABSTRACT We propose a Dip Vector-Median Filter (D-VMF) by adding the dip field constraint to the Vector-Median Filter in order to deblend simultaneous source data. The dip is provided by plane-wave destruction (PWD) algorithm, which is suitable for the weak signals in the deep. Thus, the D-VMF...

..., shifting- and smearing-amplitudes will be removed by the power of stacking. Hence, concurrent vector-median-filter (C-VMF) is introduced here. The advantage of this method is beyond conventional scalar-median-filter (SMF), commonly considered as 1-D operation. While, C-VMF can computerize in flexible...

... converges linearly under the single assumption that the median in the first half of the absolute value of the corrected signal is equal to the median in the second half of the absolute value of the signal. Furthermore, we derive a guaranteed rate of convergence and show the error penalty on convergence rate...

... Summary We propose to use a structural-oriented median filter to attenuate the blending noise along the structural direction. The principle of the proposed approach is to first flatten the seismic record in local spatial windows and then to apply a traditional median filter (MF) to the third...

... azimuth and multi-component information recorded by both hydrophone and geophone. Here we present a deblending scheme that harnesses subtraction incorporated with a median filter to separate simultaneous sources OBN data. Our approach is data-driven by extracting the noise model from the blended input...

... Summary Median filters have been successfully applied to seismic data to reduce random noise. Due to their edge-preserving nature, median filters are also sometimes applied prior to edge detection. Current median filters use a fixed size which does not account for either the amount of local...

... Summary Deblending is a currently popular method for dealing with simultaneous-source seismic data. Removing blending noise while preserving as much useful signal as possible is the key to the deblending process. In this paper, I propose to use space varying median filter (SVMF) to remove...

.... upstream oil & gas separation iss seismic data crosstalk noise reservoir characterization iss vibroseis vibrator fleet artificial intelligence seg houston 2013 seismic data tx domain acquisition seismic wave iss vibroseis seismic data acquisition synthetic data vector median filter...

... to separate the blended data into single shot gathers, which allows to reduce the crosstalk noise and to allow application of standard pre-stack processing, such as statics, velocity analysis, etc. In this paper we introduce a new and simple Iterative Dip-Steering Median Filter (IDS_MF) in order to separate...

... Summary The scalar median filter (SMF) is often used to reduce noise present in scalar geophysical data. We present an extension of the scalar median filter to a vector median filter (VMF) for suppressing noise contained in geophysical data represented by a vector field. Like the SMF, the VMF...

... dilatancy. This paper focuses on the newly-introduced parameter of the Median Ratio (MR) of the Rate Step-down Test (RST) and Near-wellbore (NWB) friction, both of which must be used concurrently as Proppant Admittance (PA) criteria, because screenout causes are not failure diagnosis methods, therefore...

... upstream oil & gas international exposition crosstalk acquisition simultaneous source separation median filter saudi arabia government vector-median filter reservoir characterization geophysics vector median filter seg houston 2009 annual international meeting application saudi...

... boundary noise vmf saudi arabia government vector-valued function international exposition annual international meeting geophysics yike liu vector reservoir characterization equation median value sharp boundary application geophysics seg houston 2009 artificial intelligence...

... operator and a special median filter, a new fast effective multiple suppressing method has been developed. This method first of all applies FK migration using multiple velocities to CMP gathers or shot gathers then, using a hyperbolic median- median filter to suppress the multiple energy, migrates back...

... Summary Although non-Gaussian noise may be suppressed by signal processing prior to seismic migration, in many cases its remnant still presents difficulties by spreading its energy into the migration aperture. Non-Gaussian noise reduction can be performed in seismic migration. Median filtering...

... to be developed which straddles the UK/Netherlands median line and needed a treaty. A coordinated response from both the UK and Netherlands governments was therefore required to ensure that a treaty would be in place in time for production to commence on schedule. It is the first field involving the export...

... ABSTRACT No preview is available for this paper. median filter output tube wave step function attenuation subtraction median filter exxon production research wave noise artificial intelligence well logging subtraction process reservoir characterization borehole data...

... ABSTRACT No preview is available for this paper. middle value polarity noise shot gather claerbout algorithm artificial intelligence average filter glitch bednar coefficient stewart operator filter coefficient dip reject absolute value median filter rejection mean...