新型分层酸化管柱技术在江苏油田的应用

Application of tube column technology of new lamination acidification in Jiangsu Oilfield

江苏油田是典型的复杂小断块油田,针对非均质油藏注水井层间物性差异大、吸水剖面单层突进现象严重的特点,在对储层进行系统研究的基础上,进行了新型分层酸化管柱技术的应用。该技术具备了管柱自验封和自定位功能,在不动管柱的条件下可以一次酸化2～3层,从而降低了施工成本,施工效率和酸化效果也得到明显改善。在江苏油田非均质油藏注水井的应用,获得了明显的增注效果,有效改善了吸水剖面。

Jiangsu Oilfield is a typical complex oilfield with small fault blocks. According to the natural differences between layers and the phenomenon of monolayer advance as water injected to the strata, and also based on systematic study on reservoirs, tube column technology of new lamination acidification have been applied. This technology itself possesses the function of examining seals and positioning. Two or three layers can acidified without any tube column motion, so construction efficiency and the acidified effects are increased, and the cost decreased. After the technology being used in Jiangsu Oilfield, obvious increase effect of water injection is obtained and entry profiles have been improved greatly.