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Subtraction of multiple waves-hindrances

 

a) Fragment of slit CMP to b) fragment of slit CMP after
Deductions of the multiple waves-hindrances of subtraction of the multiple waves-hindrances

Deductions of the multiple waves-hindrances

 

a) Fragment of slit CMP to b) fragment of slit CMP after
hindrances of subtraction of the multiple waves-hindrances
Fig. 2.9. An example of operation of program ZMULT

applications of equalization of amplitudes

 

a) Fragment of slit CMP to b) fragment of slit CMP after
applications of equalization of amplitudes applications of equalization of amplitudes
Fig. 2.10. An example of operation of the program of the is superficial-compounded equalization of amplitudes (BALAN, BALSOL,BALAPP)

 

Hand-operated correction of static allowances. In view of complexity and low
Qualities initial as analog, and a numeral material, in view of complexity of the superficial requirements and small level of scrutiny ZSS, it was necessary to be engaged in great volume in interactive correction of static allowances on sections of blanket points of explosion and reception. Inexactness of field geometry of working off of archival materials have demanded the considerable expenses of time and manual skills. Hand-operated correction was applied to control of the calculated allowances, and also used at the analysis 'is nonviscous' on crosses of lateral views.
. Self-acting correction of static allowances was carried out in some iterations with the intermediate correction of the kinematic allowances between them. At the initial stage for correction reflexions of an upper of an interval of a slit have been chosen. These reflexions are least complicated by a geometrical factor, their hodographs occupy short-range to point of excitation a gamut of removals that allows to get rid of inexactness of the kinematic allowances. The basic contribution to correction the first iteration imports, the others, lead to inappreciable improvements of quantities static. Allowances. At the further stages all basic horizons participated in program operation. Self-acting correction of static allowances was carried out by procedure STATICR. In case of unsatisfactory effect of correction (presence of transitions from a phase on a phase) were improved adjustment intervals, was used others basic horizon.
Correction of the kinematic allowances. Correction of the kinematic allowances was carried out in the core in three stages:

  1. After the first stage of correction of static allowances.
  2. 2. After application deconvolution
  3. 3. After subtraction of the multiple waves.

At all stages the velocity analysis was spent with a step along a lateral view not less than 1500m. If necessary the kinematics analysis was spent after each stage of correction of static allowances.
In drawings 2.5, 2.6, 2.7, 2.8 examples of operation with velocity spectrums are given.
Definitive summation. At last stage self-acting correction of residual static allowances on hodographs CMP (procedure TRIMST). Definitive summation was carried out taking into account a trim-statics (procedure STACK). On fig. 2.12, 2.13 examples of the aprioristic and definitive totals CMP and their distributions of modes of frequency are given.

The analysis 'residual' on crosses. Besides the analysis of temporary sections after each stage of processing control of values t0 in points of crosses of lateral views was carried out. For this purpose on all area installations of fragments of temporary sections in intersection points of lateral views and in their neighbourhoods were under construction. The visual analysis of similar installations has allowed to check are nonviscous throughout all processing and in time to undertake necessary standards on their minimisation (2-4 m/sec). The example of such installation is shown on fig. 2.14 where sites of the temporary sections which have been cut out in a neighbourhood of points of their cross are given..

relief-co-ordinated deconvolution

 

a) Fragment of CMP stack and b) Fragment of CMP stack and
Frequency spectrum to deconvolution Frequency spectrum after deconvolution
Fig. 2.11. Fragments of CMP Stack and Frequency spectrums Before and after of superficial-compounded deconvolution

definitive CMP slice

 

a) The aprioristic CMP slice and b) definitive CMP slice and
Frequency spectrum Frequency spectrum
Fig 2.12. An example of the aprioristic and definitive CMP slice


example of definitive CMP slice

 

a) The aprioristic CMP slice and                                 b) definitive CMP slice and
     Frequency spectrum                                                       Frequency spectrum
Fig 2.13. An example of the aprioristic and definitive CMP slice

assembling of fragments of definitive CMP slices.

 

Fig. 2.14. assembling of fragments of definitive CMP slices