Analysis of Petrophysical Conditions and Reservoir Prediction in South SC Fault Depression

Abstract

With the further development of reservoir geophysical research, geophysicists have carried out a series of explorations and practices on sandstone prediction using seismic wave attributes and distinguishing sandstone and mudstone. Reservoir parameters provide more powerful support for improving the success rate of reservoir prediction. Based on the analysis of reservoir rock physical conditions, seismic waveform characteristics and seismic attributes, and using known well reservoir sensitive parameters, this paper establishes waveform indicator inversion body according to reservoir development. That is, under the premise of using seismic waveform characteristics as background, the comprehensive response of reservoir to various characteristics is sought, so as to respond to sandstone of D3 Member and dark mudstone of Y4 Member in southern SC area. The results show that the effect is good. According to the research, the sandstone of D3 Member in southern SC area is characterized by multi-stage and thick channel sand body superimposition, and the seismic reflection characteristics inside the channel belt are complex. The physical properties of the main channel sand body are better as a whole, showing low impedance characteristics, and the dark mudstone of Y4 Member is characterized by high impedance, which are mainly distributed in the southeastern depression. This paper provides a set of relatively complete and orderly methods for reservoir prediction research, which has a certain significance for improving the success rate of reservoir prediction.

Copyright 2019, IFEDC Organizing Committee. This paper was prepared for presentation at the 2019 International Field Exploration and Development Conference in Xi’an, China, 16–18 October, 2019. This paper was selected for presentation by the IFEDC Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the IFEDC Technical Team and are subject to correction by the author(s). The material does not necessarily reflect any position of the IFEDC Technical Committee its members. Papers presented at the Conference are subject to publication review by Professional Team of IFEDC Technical Committee. Electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of IFEDC Organizing Committee is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of IFEDC. Contact email: paper@ifedc.org.