液流空化储层改造技术在渤海油田注水井的创新应用

Innovative application of fluid flow cavitation reservoir reconstruction technology in injection well of Bohai Oilfield

渤海油田部分注水井储层存在低渗带,严重影响注水效果,同时多层注水井层间差异大,分注难度高。液流空化储层改造技术通过对近井地带储层进行改造,使近井地层产生大量微裂缝,进而改善储层连通性。该工艺在渤海某油田B9井实施作业,降压增注效果明显,对注水井注水效果改造具有重要意义。

Low permeability zone exists in some water injection Wells in Bohai oilfield,which seriously affects the water injection effect.Fluid flow cavitation reservoir reconstruction technology can improve reservoir connectivity by transforming the near-wellbore formation to produce a large number of micro-fractures.This process is applied in well B9 of bo hai oilfield,and the effect of reducing pressure and increasing injection is obvious,which is of great significance to the improvement of water injection effect of water injection well.