Prediction Methods Of Complex Reservoirs In Mabei Slope

The Triassic Baikouquan group of Mabei slope area was located in the front facies of a fan delta,the vertical and horizontal transformation of the sand body changes rapidly,and the overlay features is obvious,which makes the meticulous depiction of beneficial phase boundary and high quality reservoir really difficult.Therefore,find a way to evaluate the high quality reservoir meticulously and optimize the exploration plan is essential to the current situation.Concerning about the meticulous evaluation of the Triassic Baikouquan Group of Mabei slope area,this paper using advanced geophysical technologies and generating a series of key geophysical technologies targeting conglomerate reservoir.Through using continuous wavelet transform to do forward modeling analysis,then using continuous wavelet transform based on Fourier algorithm to do wavelet feature reconstruction of synthetic seismic data,finally apply all these to real seismic data and have got a good result.At the same time,using the Teager-Kaiser peak energy instantaneous frequency method based on time-frequency analysis to identify the thin interbeded sand body,using seismic sedimentology 90° phase stratal slice method to determine the facies boundary,via rock physics analysis to determine the selection of sensitive factors and the dessert factors,and provides technological supports for predicting the relatively profitable dense conglomerate reservoir of gentle slope-type fan deltas in Mabei slope area.This paper provides new ideas and methods for the exploration of Mahu hydrocarbon-rich depression's relatively profitable reservoir and generates a positive meaning for meticulous evaluation and exploration of Mahu hydrocarbon-rich depression.Meanwhile,it is useful to the similar situation in other oil fields.These technologies are meaningful to the evaluation and exploration of Mahu hydrocarbon-rich depression reservoir.Meanwhile,it is useful to the similar situation in other oil fields.