大庆杏南油田注水井压裂酸化效果预测模型研究Fracturing and Acidizing Results Prediction Model of Injectors in Xingnan Oilfield of Daqing
温庆志,王淑华,张士诚
WEN Qing-zhi; et al. (Oil and Gas Engineering Institute of Petroleum University; Beijing 102249;
摘要(Abstract)：
水力压裂与酸化技术是油气井增产、水井增注的一项重要技术措施,对于低渗透油田,通过压裂、酸化技术提高注水井增注强度,不仅可以提高单层的注入量,而且可以调整层间矛盾,因此,对保持地层压力,提高采油速度和采收率都具有十分重要的意义。通过对注水井压裂、酸化前后注水量递减规律的分析,在对大庆杏南油田189口注水井注入量的变化进行统计基础上,建立了注水井注水量与各种主要影响因素的函数关系,通过拟合计算证明该模型适应杏南油田注水井压裂、酸化效果的预测。
Hydraulic fracturing and acidizing technology are important measures for oil and gas wells stimulation. In low permeability oil fields, fracturing and acidizing technology not only can improve the injection volume of single layer but also adjust interlayer contradictions. So, this technology is important to maintain formation pressure and improve production rate and recovery factor. According to the decline rule analysis of injectors before and after fracturing and acidizing, and the injection volume changes of 189 injectors in Xingnan oilfield of Daqing, the functional relation between injected volume of injectors and various main influential factors is established. This model is suitable for fracturing and acdizing results prediction of injectors in Xingnan oilfield, and can be helpful for evaluation of injector stimulation measures.
关键词(KeyWords)：
注水井;压裂;酸化;效果评价;多元回归
injector; fracturing; acidizing; results evaluation; multiple regression
基金项目(Foundation):
作者(Authors):
温庆志,王淑华,张士诚
WEN Qing-zhi; et al. (Oil and Gas Engineering Institute of Petroleum University; Beijing 102249;