摘要
尕斯库勒油田E31油藏属于低渗透油田,非均质性强,开采难度大。由于油藏各小层物性差别大,注水开发各小层的启动压力梯度不一。根据各小层的物性、实际开发状况确定合理注采井距对油田的经济有效开发具有重要意义。在充分考虑E31油藏的纵向非均质性的基础上,建立了水驱储量动用程度与注采井距的关系,分析了影响E31油藏水驱储量动用程度的因素,提出了根据水驱储量动用程度确定合理注采井距的方法。
Gasikule oilfield E31 reservior belongs to low permeability reservoir and is hard to be developed due to strong heterogeneities.Every oil layer has its own ultimate production-injection well spacing due to the existence of starting pressure gradient and different properties.Determination of rational production-injection well spacing is significant for economic and effective exploitation.This paper established the relationship between degree of water flooding reserves and production-injection well spacing considering vertical heterogeneity of the E31 reservoir,analyzing the controlling factors effecting degree of water flooding reserves,putting forward the method of determination rational production-injection well spacing.
出处
《天然气地球科学》
EI
CAS
CSCD
北大核心
2012年第5期956-959,共4页
Natural Gas Geoscience
关键词
非均质多层低渗油藏
启动压力
注采井距
水驱储量动用程度
Heterogeneity low permeability reservoir
Starting pressure gradient
Production-injection well spacing
Degree of water flooding reserves
