基于多元线性回归分析的确定油田合理注水参数技术方法研究  

Research on the technical method of determining reasonable water injection parameters in oil field based on multiple linear regression analysis

作　　者：张章[1,2,3] 朱玉双 全洪慧[3] ZHANG Zhang;ZHU Yu - shuang;QUAN Hong - hui(State Key Laboratory of Continental Dynamics, Northwest University, Xi＇ an 710069, China;Department of Geolo- gy, Northwest University, Xi＇ an 710069, China;CNOOC （China） Co. , Ltd. Tianjin Branch, Tianjin 300452, China)

机构地区：[1]西北大学大陆动力学国家重点实验室,陕西西安710069 [2]西北大学地质学系,陕西西安710069 [3]中海石油(中国)有限公司天津分公司,天津300452

出　　处：《地下水》2018年第2期81-83,195,共4页Ground water

基　　金：国家重大科技专项“海上油田丛式井网整体加密及综合调整油藏工程技术示范”(2011ZX05057-001)

摘　　要：油田在注水开发阶段,注采比是最重要的注水参数之一,若注采比控制不合理,则会产生高渗带水淹加剧、注水利用率降低、水驱波及状况变差、地层压力亏空严重等一系列问题,影响油田的水驱开发效果。本文以L油田为研究对象,对注采比的合理性进行论证,在深入分析油田地层压力和注采比关系的基础上,根据油田实际注采比影响因素,建立注采比多元线性回归模型,以改善油田水驱开发效果为目的,将甲型水驱规律与注采比多元线性回归模型相结合确定合理注采比,研究表明:该方法符合基本水驱规律,结果与油藏数值模拟计算合理注采比的结果一致,确定研究区现价段合理注采比为1.05。对研究区今后开展安全合理注水开发、改善水驱开发效果起到指导性作用,对其他相似油田和其他类型油田也具有一定的参考和借鉴作用,具有较强的实用性和操作性。Oil in water flooding stage,water injection production ratio is one of the most important parameter,if not reasonable injection production ratio control,it will cause a series of problems with flooding,water flooding intensified hypertonic low utilization rate of water flooding status variation,the formation pressure deficit is serious,the development effect of oil field water flooding effect. This paper takes L oilfield as the research object,the injection production ratio to demonstrate the rationality,in depth analysis of oil reservoir pressure and injection production ratio on the basis of the relationship,according to the actual oil injection production ratio influence factors,establish the injection production ratio of the multivariate linear regression model,in order to improve the water flooding effect for the purpose of the production ratio the multiple linear regression model are combined to determine the reasonable injection production ratio and injection type water displacement law,The results show that the method is in accordance with the basic water flooding law,and the results are consistent with the results of reasonable numerical simulation of oil injection in the reservoir simulation. It is determined that the reasonable injection-production ratio in the current price range of the study area is 1. 05. The research area will play a guiding role in the development of safe and reasonable water injection development in the future and improve the effectiveness of waterflooding development. It also has certain reference and reference for other similar oil fields and other types of oil fields,and has strong practicality and operability.

关 键 词：注采比 水驱开发效果 多元线性回归模型 甲型水驱曲线 数值模拟 

分 类 号：P618.13[天文地球—矿床学]