利用生产动态数据计算平均地层压力评价气顶油藏驱动能量的新方法  

A new method for evaluating the driving energy of gas cap reservoirs via calculation of average formation pressure based on the production performance data

作　　者：郭旭 张艺钟 张茂林 杨龙[1] 凡文科 肖千祝[3] GUO Xu;ZHANG Yizhong;ZHANG Maolin;YANG Long;FAN Wenke;XIAO Qianzhu(School of Petroleum Engineering,Yangtze University,Wuhan 430100,China;Unconventional Oil and Gas Provincial Collaborative Innovation Center,Wuhan 430100,China;Geological Research Institute of the Sixth Oil Production Plant of Daqing Oilfield Co.,Ltd.,Daqing,Heilongjiang 163712,China)

机构地区：[1]长江大学石油工程学院,武汉430100 [2]非常规油气省部共建协同创新中心,武汉430100 [3]大庆油田有限责任公司第六采油厂地质研究所,黑龙江大庆163712

出　　处：《中国科技论文》2024年第5期522-528,539,共8页China Sciencepaper

基　　金：国家自然科学基金资助项目(52004032);江苏省油气储运技术重点实验室资助项目(CDYQCY202304)。

摘　　要：针对现有驱动指数分析方法存在需要较为完整的地层压力检测数据、在地层压力史不明确时无法计算驱动指数的问题,提出在不关井影响生产的前提下,通过改进后的物质平衡方法,利用部分生产动态数据计算出相关参数,进而通过推导公式计算出完整的平均地层压力史。然后基于该方法求出的平均地层压力就可以计算出驱动能量与驱动指数。经该方法计算后,与2组实际现场数据对比,平均相对误差分别为1.28%和1.07%,证明了该方法的有效性。研究结果可为指导油藏开发设计与后续优化提供参考。In view of the problem of the existing driving index analysis methods,which requires relatively complete bottom pressure detection data and cannot calulate the driving index when the formation pressure history is not clear,this study proposes a new strategy to use partial production performance data to calculate relevant parameters through an improved material balance method,in the case of not shutting down the well and affecting the production,and to calculate the complete average formation pressure history by driving a formula.Then,based on the average formation pressure obtained by this method,the driving energy and driving index could be calculated.Compared with two sets of actual field data,the average relative errors by calculation were 1.28%and 1.07%,respectively,proving the effectiveness of this method.The research results can guide the design and subsequent optimization of oil reservoir development.

关 键 词：气顶油藏 物质平衡方程 平均地层压力 驱动能量 生产动态数据 

分 类 号：TE37[石油与天然气工程—油气田开发工程]