Fine 3-D Geology Modeling-Based Study of Remaining Oil Distribution in Linpan Oilfield

Abstract

As one type of heavy oil reservoir with bottom water, a reservoir in Linpan oilfield features desirable physical properties and adequate energy in its bottom water. After exploitation of more than three decades, almost all wells have entered the high water cut stage. In view of the high water content situation among wells in this field and the bad effect of oilfield development, this thesis focuses on the investigation of remaining oil distribution of the reservoir. First, a fine three-dimensional geological model is established, including lithofacies model, porosity model, permeability model, and saturation model. On this basis, the corresponding numerical model is established and the historical fitting is completed. Finally, the main enrichment areas of remaining oil were determined from the aspects of water flooding characteristics, and the main controlling factors of remaining oil distribution and the main enrichment areas of the remaining oil were determined. The findings of the present study can contribute to the eventual formulation of potential-tapping countermeasures. Meanwhile, since heavy oil reservoirs with bottom water can be found prevalent in oil-producing areas both domestic and abroad, the proposals of this research are also helpful for exploitation of similar wells.

Copyright 2017, Shaanxi Petroleum Society.

This paper was prepared for presentation at the 2017 International Petroleum and Petrochemical Technology Conference in Beijing, China, 20–22 March, 2017.

This paper was selected for presentation by the IFEDC&IPPTC 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&IPPTC Committee and are subject to correction by the author(s). The material does not necessarily reflect any position of the IFEDC&IPPTC Committee, its members. Papers presented at the Conference are subject to publication review by Professional Committee of Petroleum Engineering of Shaanxi Petroleum Society. Electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of Shaanxi Petroleum Society 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&IPPTC. Contact email: paper@ifedc.org or paper@ipptc.org.