韦2块低渗—特低渗油藏高速高效开发技术

HIGH-VELOCITY AND HIGH-EFFICIENCY DEVELOPMENT TECHNOLOGY OF LOW-SUPER LOW PERMEABILITY RESERVOIR IN BLOCK WEI-2

韦 2块平均渗透率为 (6 .1～ 1 3 .5)× 1 0 - 3μm2 ,是一个较为整装的低渗—特低渗油藏。开发过程中通过采取合理的开发井网 ,实施注采同步 ,不断完善注采井网 ,以及加强注采调控和储层改造等技术 ,投入开发后油田保持良好的高产稳产态势 ,连续 5年采油速度稳定在 1 .9%～ 2 .0 % ,综合含水控制在 1 8%以内 ,各项开发指标明显好于开发方案。在此重点介绍了韦

The average permeability of block Wei 2 is (6.1～13.5)×10 3 μm 2, it is a comparatively integral low and super low permeability reservoir. In the process of developing block Wei 2, we took advantage of various development technologies, including reasonable development well pattern, synchronous water injection and oil production, improving injection production system continually, intensifying adjustment and control of injection production and reservoir stimulation. From the beginning of development, the field maintains a very good situation of high and stable productivity. The recovery velocity keeps at 1.9%～2.0% in five years, the comprehensive water cut is well controlled below 18% and all kinds of development indexes are significantly better that what they are in development plan. This paper mainly aims at introducing the measures to attain high-velocity and high efficiency development at block wei 2 and the effect.