关键词: MDT测压, 历史拟合, 深水浊积水道, 提高精度, 整井优化部署

Abstract: It is difficult to analyze the degree of utilization of each layer of sand stored in deep water turbid water channels. This aggravates the uncertainty and multi-solution characteristics of reservoir history match fitting and brings great challenges to the study of remaining oil distribution and to the adjustment of the recovery plan. In this paper, a new method is presented for the correction of the deep-water turbid water channel sedimentary reservoir model, based on the history match of MDT pressure measurements of later wells. The main idea is to use later well MDT pressure measurement data as fitting parameters. Through the fitting of newly drilled well MDT pressure measurement data, at the same location and corresponding time and pressure of each layer at a certain time in the model, the horizontal and vertical connectivity of the sand bodies in the model are continuously corrected. Consequently, the superposition and connectivity of the sand bodies in the model gradually approximate those of the actual reservoir. Further, combined with conventional recovery index fitting, the research of the remaining oil distribution trend and the study of the recovery program adjustment are finally completed. Practical application results show that the history match method of MDT pressure measurement on later wells is an effective method to fit the connectivity of the sand body of multi-stage channels.

Key words: MDT pressure measurement, historical match, deep-water turbid waterway, improved accuracy, adjustment of optimized deployment of wells