A块试验区稠油蒸汽驱油藏动用程度分析

Analysis on the Utilization Degree of Heavy Oil Steam Flooding Reservoirs in Test Area of Block A

研究区纵向动用程度达到70%以上,平面上受控于蒸汽波及的不均匀,平面动用程度差异较大,于Ⅰ组1和2小层平面动用程度较高;试验区油藏压力及注采压差基本保持平稳;蒸汽驱开发效果主要受注采井所在沉积相、注采井的压差范围以及分注效果影响。

The longitudinal utilization degree of the study area is more than 70%, due to the controlling by the unevenness of the steam wave, the difference of the plane moving degree is great. The plane moving degree of the 1 and 2 small layers in the Group Ⅰ is higher. The reservoir pressure and the injection production pressure difference in the test area are basically stable. The development effect of steam flooding is mainly affected by the sedimentary facies of injection production wells, the pressure difference range of injection production wells and the effect of separate injection.