利用超前注水技术开发低渗透油田

为了提高低渗及特低渗透油田的开发成果，提高探明储量动用程度，根据低渗透油田的地质特点并借鉴国内外油田的开发经验，通过渗流力学和油藏工程研究，提出了利用超前注水技术开发低渗透油田的方法，即采用先注后采的注水开发方式，合理补充地层能量，提高地层压力，使油井能够长期保持旺盛的生产能力。从水井注水时机、采油井投产时机、注水井最大流动压力、采油井合理流压、超前注水适应条件、超前注水实施要求6个方面对超前注水技术措施进行了阐述。该方法在油田实际生产中取得了明显效果，对低渗及特低渗透油田开发实现效益最大化具有重要意义。

Utilizing Advanced Water Injection to Develop Low Permeability Pools

In order to improve the development effect of the low and ultra-low permeability pools and enhance the producing to proven reserves ration,based on the geology property and the corresponding oil field development experiences at home and abroad,taking advantage of the mechanics of fluid through porous media and petroleum reservoir engineering research,this paper presents a method for development of low permeability pools by utilizing advanced water injection.This approach is the water-drive development method of advanced water injection,injection first,then recovery,to compensate the formation energy properly and increase the formation pressure,thus maintaining strong productivity of the oil wells in a long period.This paper elaborates the measures of advanced water injection in aspects of the opportunity of water injection,the opportunity moment of putting into production,the maximum flow pressure of water wells,the proper flow pressure of oil wells,the proper factors and requirements of advanced water injection.This method has obtained an evident effect in the oil field production.The advanced water injection can enhance the level of developing low permeability reservoirs and economic benefit.