Kirchhoff Time Migration method was applied in pre-and post-Stack Time Migration for post-processing of images collected from Balad-Samarra (BS-92) survey line that is sited across Ajeel anticline oilfield. The results showed that Ajeel anticline structure was relocated at the correct position in the migrated stacked section. The two methods (Pre and Post) of migration processing showed enhanced subsurface images and increased horizontal resolution, which was clear after the broadening the syncline and narrowing or compressing the anticline. However, each of these methods was associated with migration noise. Thus, a Post-Stack process was applied using Dip-Removal (DDMED) and Band-Pass filters to eliminate the artifact noise. The time-frequency and signal to noise spectrum analyses as well as the ISO-velocity distribution analysis confirmed that the Pre-Stack Time Migration method outperformed the Post-Stack method as a result of structural complexity.
This paper is concerned with the design a special perform drawing system for fabricated Step Index-Single Mode Polymer Optical Fiber (SI-SM POF). The POF has been fabricated by this device based on a highly crosslinked poly methyl methacrylate (PMMA) as a core material and a dye-doped PMMA cladding layer. The refractive indices of the core material and the cladding are 1.49 and 1.35, respectively. The physical and optical properties of POF have been studied, which fabricated at different diameters. Laser light (633 nm) was coupled in to the POF using standard prism coupling techniques. From the morphological analysis of the POF it has been shown that the homogenous and the viscidity of the core and cladding is suitable. In additional to the core is completely in the center of the POF.
In this paper we are performing Spiking and Gap deconvolution on land 2D data; we are applying on the shot and stack data with operator length (200 ms), while in the gap deconvolution it is used different gap window (16.24 ms). The quality of output data is better than input data, and there is homogeneity in the distribution of frequencies. Also the band width of frequencies is increasing and smoothing specialist in the case of spike deconvolution because it increases the temporal resolution so, it appears for us the inter beds between the layers and this is very important about the interpretation.
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