大庆油田三元复合驱注入压力变化规律及预测

发布时间：2018-03-28 17:47

本文选题：三元复合驱　切入点：注入压力　出处：《特种油气藏》2017年01期

【摘要】：针对大庆油田三元复合驱注入压力变化速度快、幅度大,严重制约方案设计,影响跟踪调整的问题,综合运用矿场资料、物理模拟实验结果及油藏工程方法,研究了三元复合驱注入压力变化规律,确定了三元复合驱注入压力上升幅度预测方法。研究结果表明:大庆油田三元复合驱注入压力呈对数式上升,分快速上升、缓慢上升和基本稳定3个阶段;注入压力上升幅度受压力准数(空白水驱采油井组的注入井地层压力与采油井地层压力之差)、流度2个因素影响,上升幅度与压力准数呈正相关,与流度呈负相关;在此基础上建立了依据压力准数、流度的注入压力上升幅度预测方法,现场验证相对误差小于8%。研究成果对改善三元复合驱开发效果具有重要意义。
[Abstract]:Aiming at the problems of fast changing speed and large amplitude of injection pressure of ASP flooding in Daqing Oilfield, which seriously restrict the scheme design and influence the tracking adjustment, the comprehensive use of field data, physical simulation experiment results and reservoir engineering methods are carried out. The variation of injection pressure in ASP flooding is studied, and the prediction method of injection pressure rise amplitude of ASP flooding is determined. The results show that injection pressure of ASP flooding in Daqing oilfield increases logarithmically and increases rapidly. The increasing amplitude of injection pressure is affected by the pressure criterion (the difference between the injection well pressure and the formation pressure of the oil well, the mobility of the oil well, the difference between the injection well pressure and the formation pressure of the oil well in the empty white water flooding oil well, and the mobility of the oil well). The rising amplitude is positively correlated with the pressure criterion and negatively correlated with the mobility, and on this basis, a prediction method of the injection pressure rise amplitude based on the pressure criterion number and mobility is established. The relative error of field verification is less than 8. The research results are of great significance to improve the development effect of ASP flooding.
【作者单位】：中国石油大庆油田有限责任公司;
【基金】：国家科技重大专项“大型油气田及煤层气开发”子项目“大庆长垣特高含水油田提高采收率示范工程”(2011ZX05052)
【分类号】：TE357.46

【相似文献】