文31块石油磺酸盐驱油效果及开发对策

The result of petroleum sulphonate flooding and the study on development strategy for Wen31 block.

在文 3 1块水驱和石油磺酸盐剂驱历史拟合的基础之上 ,对石油磺酸盐剂驱的效果进行了预测和评价。研究了石油磺酸盐剂驱转后续水驱的开发对策 ;优化了井网形式、注采比和加密调整井的井位 ;并对调剖堵水等工艺措施的适应性进行了评价。结果表明 ,文 3 1块石油磺酸盐剂驱油效果不明显 ,通过注采关系的完善和加密调整可改善本区块的开发效果 ,其调剖堵水等工艺措施适合于解决本区块的层间矛盾。

Based on the history match of waterflooding and petroleum sulphonate(PS) flooding in Wen31 block, the results of PS flooding are predicted and evaluated. The development strategy, in which PS flooding is first, followed by waterflooding, is studied. The well pattern, injectionproduction ratio and location of infill well are optimized. The suitability of profile control and water plugging is evaluated. The result shows that the effect of PS flooding in Wen31 block is not obvious, changing injectionproduction ratio and optimizing the flooding pattern can improve development effect, it is suitable to solve the interlayer interference problem.