雁木西油田第三系油藏注水效果评价

Evaluation of waterflood response on Tertiary
reservoirs in Yanmuxi Oilfield

 孙欣华 杨均奇

 吐哈油田分公司勘探开发研究院，新疆哈密839009

Exploration and Development Research
Institute,Tuha Oilfield Company,CNPC,Hami 839009,China

 雁木西油田第三系油藏水驱控制程度和水驱动用程度均比较好，但由于注水结
构不合理导致注水利用率低、平面水驱状况不均衡。根据第三系油藏存在问题袁确定了考虑气
体亏空时的平衡注采比和不同注采比下的地层压力恢复速度，并进一步确定不同井组合理的
注采比范围，制定了下步技术对策，为油田注采调整尧挖掘剩余油指明方向。

The study of this subject shows that control degree and
producing degree of waterflood are better, but affusion utilizing
ratio is low and planar water-flooding status is disproportion
because of inconsequential injection structure. Production of
some oil wells is better because of good water-flooding status
and production of some oil wells is descending because of
inconsequential working system. According to the problems of
Tertiary reservoirs, the balanceable injection production ratio
and pressure comeback rate are made certain using the related
formulas, and the range of reasonable injection -production
ratio is established in each injection compages. Next
technology countermeasure and adjusting direction are put
forward according to Tertiary reservoirs, which designate the
direction of empoldering remaining oil and adjusting structure
of injection-production.