TN962 : Salt dome identification in seismic data using color stacking of seismic attributes
Thesis > Central Library of Shahrood University > Mining, Petroleum & Geophysics Engineering > MSc > 2020
Authors:
Seyed Saeed Hoseini [Author], HAMID AGHAJANI[Supervisor], Amin Roshandel Kahoo[Advisor]
Abstarct: Today, the identification and exploration of salt domes in order to store hydrocarbons and explore hydrocarbon resources is of particular importance. Among the geophysical methods, the reflective seismic method is one of the best methods that has the ability to identify salt domes, although accurate determination of salt dome boundaries due to strong damping of seismic energy in salt and high speed wave propagation in salt ratio The sediments around it have made it a little difficult to directly identify the salt domes and delineate them from the reflected seismic data. Seismic markers as a tool to extract the characteristics of seismic data can help to interpret and identify salt domes and determine its boundaries. Due to the fact that each marker has separate information, so the combination of markers is one of the tools that can provide comprehensive information of the intended purpose to the interpreter, so today the technology of combining multiple markers with different purposes in seismology Used. The aim of this dissertation is to identify salt domes by color elongation method in seismic data. Initially, five display attributes in the form of data volume, time slice, receiver line were tested by them to evaluate the ability to identify the salt dome. The attributes are: similarity, sembelance, instantaneous attributes, single frequency, energy. The following three attributes, which showed the salt dome more accurately than other attributes, were selected for color storage on three sections (volume Data, time slice, receiver line) which are: instantaneous amplitude attributes, similarity attributes, energy attributes and finally an attempt was made to identify the salt dome using the method on color storage. The results obtained from applying color storage on the data indicate that this method has been able to determine the range of the salt dome with good accuracy. The three considered modes (instantaneous amplitude attributes, similarity attributes, energy attributes) for the colors on the color storage in all sections show well the salt dome, the laxyers around the salt dome and the bottom of the salt dome. Of course, it can be said that the first case (receiver line) has shown the salt dome border more clearly.
Keywords:
#Salt dome #seismic data #seismic attributes #colored precipitation Keeping place: Central Library of Shahrood University
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