3D Seismic Exploration Acquisition Method In The Evaluation Of Gas Storage

Based on the different observation system design and design of the scheme and the receive,the propose of this paper is to discuss with what kind of3D seismic exploration acquisitionscheme can be better for the description of the underground geological structure, to provide thebasis for the choice of a gas storage layer. By using visualization technology, main purpose layeron seismic geological horizon calibration could be carried on the fine structure interpretation,rapidly and accurately, visually described the space distribution of reservoir, structure form.Providing more reliable basis for horizontal well design, analyzing how the three dimensionalseismic exploration acquisition scheme used in gas storage project evaluation can get optimalresults. Mainly adopts the theory of numerical simulation analysis and practical analysis of thespecific project application practice, to find the reasonable parameters of the model. Usingthree-dimensional observation system design module of KLseis software to various observationsystem design, it is combined with earthquake lighting software forward, contrast the effect ofdifferent observation system solutions. Combined with the actual situation of the constructionarea determine the most suitable for the area of observation system model. For differentgeological task requirements, choose at least3kinds of observation system model were analyzed.In combination with the actual situation of the loess tableland mountain, according to theLithologic and equality point to determine the results of the survey, to point design of well depth,to ensure reach optimum excitation depth excitation litho logy, high frequency information isobtained. The conform to the conditions of work area of technology, equipment, well mainpurpose layer, upper Paleozoic, the Paleozoic group5insider and the Ordovician each layer atthe bottom of the seismic reflection data, for Maximize the signal-to-noise ratio of the rawmaterial and bandwidth. It could meet the needs of pre-stack effective reservoir prediction,collecting data high fidelity and the needs of oil and gas detection.