多级复合深穿透射孔技术在水平井中的应用——以塔河油田为例

Application of Multistage Compound Deep Penetration Perforation Technology in Horizontal Wells

西北油田分公司为了提高塔河油田非均质油层最终采收率,进行了6口井的多级复合深穿透射孔技术试验,在4口井中收到明显效果。通过技术的适应性和试验实例研究发现,塔河油田中孔、中高渗和低孔渗油层适合采用多级复合深穿透射孔技术增产,准确掌握油层岩性是充分发挥技术优势的关键,油层重复射孔需要加大预定方向的射孔孔密和火药装药量。

To improve ultimate recovery ratio of non-homogeneous pay,multistage compound deep penetration perforation technology has been tested in six horizontal wells in Tahe Oilfield,among which four wells have achieved obvious effect.The test result shows that this technology contributes to increasing production while used in oil layers with mid-level outlet,mid-high permeability or low porosity and low permeability.