胡尖山油田油井挤活性水技术研究

Study on injecting activated water technology for oil wells in Hujianshan oilfield

研究区主要管辖的XJ长7、LX长4+5等致密、超低渗透油藏开发矛盾突出,注水不见效,地层能量逐年下降,低产低效油井占比大。本文通过对2018年在该区摸索试验油井挤活性水112井次进行综合效果评价,对该技术在不同油藏的适应性进行总结,为下步低产低效井治理,油藏提单产、降递减,老油田稳产提供思路。

The main of the study area is XJ Chang 7,LX Chang 4+5 and other dense or ultra-low permeability reservoirs,and the contradiction is prominent.The water injection is not effective,the formation energy is decreasing year by year,and the low-production and low-efficiency oil wells account for a large proportion.The paper evaluates the comprehensive effect of the injecting activated water technology in different oil reservoirs in 2018,summarizes the adaptability of the technology in different reservoirs,and provides ideas for the management low-production and low-efficiency wells,the reduced of reservoirs declining,and the stable production of old oilfields.