... The migration image is sensitive to several seismic elements, such as the presence of noise, accuracy, and signal energy. The transmission-compensated Marchenko multiple elimination (T-MME) represents a sophisticated method to attenuate internal multiple reflections of all orders, whereas...

... In deep and ultra-deep layer processing in Central S Basin, due to the development of deep internal multiples, most of the seismic synthetic records of interval Z Formation are seriously mismatched with the actual seismic records, resulting in unclear seismic response of high-productivity wells...

... Multiple elimination is a crucial step in seismic data processing. Surface-related multiple elimination algorithms are well-developed, while most currently used internal multiple elimination algorithms generally require manual selection of the layers that generate internal multiples...

... This work revisits and explores benefits and practical aspects of employing inverse scattering series (ISS) based algorithms to predict internal multiples under a new forward prediction parameterization perspective. The intricate nature and rapid variability of the multiple generating sections...

...Prediction and removal of internal multiples under strong re ectors by using inverse scattering series algorithm Jinlong Yang, Sinopec Geophysical Research Institute SUMMARY for marine, land, and ocean bottom data (Matson and Weglein, 1996; Matson, 1997). Ram´ rez and Weglein (2005) discussed...

... to internal multiples generated between the early Mesozoic and late Cretaceous zones. Strong surface and internal multiple contamination are These multiples distort the primary reflections in the known to impair interpretation and reservoir characterization recorded data, making the seismic interpretation...

... precisely determined. S0 In addition to a clearer primary response from the reservoir, the method also reveals internal multiples. These multiples Here, represents temporal convolution. f1+ is a focusing have propagated through the reservoir multiple times, hence function that focuses the wave eld...

... The internal multiples, which are generated with strong reflection interfaces, have bothered the oil and gas exploration for a long time because of their complicated propagation paths and high costs in suppression. Considering that internal multiples are also real reflections from...

... diving waves. LSRTM estimates perturbations of the background model under a linear assumption (the Born approximation), therefore only single scattering generated in the subsurface is addressed and internal multiples are considered as noise, which results in image artifacts (crosstalk). In this paper we...

... We extend applications of a recently developed method for internal multiples prediction (van der Neut and Wapenaar, 2016) to a streamer dataset from a shallow-water survey. The internal multiples being predicted are all the internal multiples arriving later than a reflection from a fictitious...

...Improving internal multiple attenuation in the Red Sea using enhanced two-dimension inverse scattering series modeling allied with multidimensional curvelet matching Frederico Xavier de Melo*, Reham Yassein, Jing Wu, Zhiming James Wu, Clément Kostov, Cintia Mariela Lapilli, Zhimei Yan, Schlumberger...

... variations, evaporites with variable thickness, and igneous layers mixed with sandstone, shale and salt. This type of geological complexity creates the perfect condition for strong internal multiple contamination at the reservoir level. This work shows a three-step approach focused on internal multiple...

... Deep-water seismic exploration is plagued with numerous imaging problems. One such problem is data contamination by internal multiples; its prediction and attenuation have been challenging. These multiples can be so strong that they can pose a significant impediment to our understanding...

... The presence of internal multiple reflections reduces the accuracy and quality of the results obtained in many stages of seismic processing, e.g., velocity analysis, stacking and time/depth migration. A novel scheme called Marchenko multiple elimination (MME) has recently shown impressive...

... Imaging artifacts caused by strong internal multiples can interfere with primary images, affecting structural interpretation and amplitude analysis. In such cases, internal multiples are often attenuated in either data domain or in the image domain. In this abstract, we study three data-driven...

... Internal multiple reflections can be interpreted as the main coherent noise in seismic data. Many strategies to remove and mitigate them have been developed, such as the Marchenko multiple elimination (MME) scheme, which eliminates the referred reflections type without model information...

... and more complex on-shore and off-shore plays, these methods bumped up against their assumptions. The Inverse Scattering Series (ISS) internal-multiple-attenuation algorithm (Ara´ujo et al., 1994, Weglein et al., 1997 and Weglein et al., 2003) made none of the assumptions of previous methods (listed above...

.... Presentation Date: Wednesday, September 18, 2019 Session Start Time: 1:50 PM Presentation Start Time: 4:45 PM Location: 305 Presentation Type: Oral internal multiple subsurface contribution migration full wavefield migration geophysics seg international exposition reverse time migration...

... Marchenko approach is intrinsically designed to retrieve the coda of the focusing functions, which is supposed to handle all the internal multiples. The estimated focusing functions are then utilized to calculate the Green’s functions by a crosscorrelation step. Inspired by the generalized internal multiple...

... ABSTRACT We propose a nonlinear impedance inversion method based on the Bayesian theory that takes into account internal multiples, transmission and attenuation. First, we derive the total reflectivity recursive equation based on acoustic multiplication matrix, and further analyze how internal...