长庆低渗透油藏细分层注水合理分级研究

Reasonable classification of sub-separated-zone waterflooding of low permeability reservoirs in Changqing oilfield

低渗透油藏精细分层注水目前还处于起步阶段，国内还没有制定过细分层标准，可以借鉴的只有东部中高渗透油藏的划分方案，但是由于储层特征的差异，也很难适应低渗、特低渗透油藏。在对长庆低渗透油藏精细地质研究的基础上，综合运用室内实验、数值模拟以及动态资料，研究小层细分依据，最终建立了长庆低渗透油藏精细分层注水标准，为低渗透油藏精细分层注水的规模开展提供参考依据。

Fine stratified water injection in low permeability reservoirs is still in its infancy, the country has not developed meticulous layering stan- dards, you can only learn from the eastern division scheme in high permeability reservoirs. However, due to differences in reservoir characteristics, it is difficult to adapt to low permeability, ultra-low permeability reservoirs. Based on the geological study of the fine Changqing low permeability reser- voirs, based on the integrated use of laboratory experiments and numerical simulation of dynamic data, broken down according to research small layer, ultimately, the establishment of a low-permeability reservoirs Changqing finely stratified water standards, provide a reference for the development of low permeability reservoir layer injection fine scale.