Title

New predicting method for fluid productivity indexes

作者

何岩峰吴晓东王云川张立会

Authors

HE Yanfeng WU Xiaodong WANG Yunchuan ZHANG Lihui

单位

中国石油大学石油工程教育部重点实验室，北京102249 中国石化胜利油田分公司临盘采油厂，山东临邑251507 中国石油青海油田公司钻采工艺研究院，甘肃敦煌736202

Organization

MOE Key Laboratory of Petroleum Engineering in China University of Petroleum, Beijing 102249 China Sinopec Shengli Oilfield Company Linpan Oil Recovery Plant, Dezhou 251507

摘要

常规采液指数预测方法一般用于预测新区新井的采液指数，但对于老区来说，由于区块已经生产了相当长的时间，原油物性等条件发生了明显改变，该方法的应用受到一定的限制，预测结果不再准确。从圆形封闭油藏拟稳态产量公式出发，结合油田的生产数据，给出了考虑老区原油物性、地层性质和井网类型变化影响的采液指数预测新方法，并将计算结果与常规预测方法进行了比较，证明该新方法更为准确。

Abstract

The predicting method for conventional production indexes (PI) has good effect on the new wells in new blocks. As the old block has been produced for a long time, the oil characteristics and other parameters of the block change greatly. As a result, the use of conventional PI predicting method is limited and the predicting results are not so accurate. Based on the pseudo-steady production capacity equation of circular closed reservoir, combined with the production data of oilfields, a new predicting method is developed. Also, the result based on the new method is compared with that of the conventional one, which shows that the new method is more accurate.

关键词：

采液指数; 预测; 含水率; 相对渗透率;

Keywords:

fluid production index; prediction; water cut; relative permeability;

基金项目

DOI