DLG区井网适应性评价及井网优化研究

Study of Well Pattern Adaptability Evaluation and Its Optimization of DLG District

DLG区通过5年多的开发，出现了油井沿裂缝或高渗带过早见水，而裂缝侧向部分油井长期不见效等问题．本文通过油藏地质特征、开发特征研究，以渗流力学为理论基础，以油藏工程方法、数值模拟为研究手段，结合计算数学等研究工具，进行了井网适应性评价研究，并对其井网进行了优化。此项研究，对于提高三叠系特低渗透油田的单井产量和整体开发水平、合理动用特低渗透油藏未动用储量，具有重要的指导意义。

In this paper, through the study of the geological characteristics of the reservoir and the development characteristics, taking the pereolation mechanics as the theoretical basis, using reservoir engineering methods and numerical simulation as the study means, combined with calculation mathematics, the authors have studied the evaluation of adaptability of the well patterns, and optimized the well patterns. The authors hope the study provide some guiding signifieanee for improving the oil production of individual wells and the overall level of development of ultra-low permeability Triassic oilfields, and rational use of ultra-low permeability reservoirs＇ untouched reserves.