The Study Of Seismic Data Acquisition Techniques Of Marsh Transition Area In Sudan

With the development of exploration,the seismic acquisition is heading to area where is complicated to geophysics and geology.In order to improve the ability of competition of ZPEB and occupy more market,the application of seismic acquisition in swamp area is becoming more and more important.Especially it has been getting more attention from ZPEB in Sudan.In Sudan the surface condition of ground in swamp area is main character, it changes from land to swamp with shallow water and then to place with deep water,meanwhile because in this area the geologic condition of surface changes a lot,so this is a big difference of attenuation of seismic wave,so the research about it is key topic in this dissertation because of particularity in this area.First we found out the regulation how the seismic wave is absorbed and attenuates in swamp area where the geophysical and geologic condition is very complicated;second we established a surface geologic construct model in transition area by carefully investigating and researching the surface construction,so as to provide gist for choosing the explosion parameters;third is we could use proper the energy source for the swamp area by comparing the new energy sources with normal dynamite;fourth is we chose the different geophone in different area with different coupling character among different geophones;fifth is we adopted the proper date collection system according to the different surface condition. Through above we summarized a set of methods for the seismic acquisition in this kind of transition area.This topic resolved a set of problems of the date collection and procession, measures have been adopted in block five in Sudan,and it has proved the date quality a lot,the character of the wave groups in the profile is distinct,the configuration of construction is clear,Signal-to-Noise is increased.The research result will guide how the working in swamp area.