摘要
为了对研究区实施开发方案调整提供指导,运用油藏工程方法,从注水开发效果、采收率的确定、产量递减、能量保持水平和开发井网的合理性等几个方面对目前该区的开发效果进行评价。大庆油田葡46区块葡Ⅰ组和扶余油组油层地质条件复杂,储层非均质性强,属于典型的复杂裂缝油藏。由于油藏纵向非均质性强的特点,开发初期已进入中高含水阶段,层间矛盾更加突出,产量递减速度加快,开发效果明显变差。因此,葡Ⅰ组和扶余组油藏必须分层系开采,扶余组油藏必须缩小井距和放大注采压差,才能投入正常注水开发。
In order to provide guidance for the next development in the study area, using the method reservoir engineering,development efficiency of studied area from the water injection development effect, production decline, recovery and energy level determine keep, development well nets rationality etc. Pu I and Fuyu reservoir of Pu 46 block in Daqing Oilfield are complex geological conditions, developed typicaliy complex fracture .Bcause the reservoir strong heterogeneity in vertical directions,the early development of high water cut stage has entered, the production decline rate speeds up, the development effect significantly becomes worse.So Pu Ⅰ and Fuyu oil group must be mined separately,fuyu reservoir must reduce space and enlarge injection-production differential pressure,can be in normal water injection development.
出处
《石油化工应用》
CAS
2012年第11期33-36,共4页
Petrochemical Industry Application
关键词
开发效果
采收率
产量递减
水驱特征规律
合理井网
development efficiency
recovery efficiency
production decline
waterfloodingcharacteristic law
rational well pattern
