大牛地气田补孔改层措施效果评价

Measure effect evaluation of fill holes and transfer layer in Daniudi gasfield

DK13井区是大牛地气田最早规模建产的直井开发区,也是目前主力开发区块之一。自2003年投产以来,大牛地气田DK13井区经过14年的开发,产量逐步下降,为保障井区产量稳定,自2008年起先后对27口低产低压老井实施补孔改层措施,根据补孔改层后气井的实际生产状况,制定了补孔改层效果评价方法,并依据此方法从日增气量和有效生产时率等方面对27口补孔改层措施井的开发效果进行评价,最后对效果一般的井进行总结分析,为下步补孔改层方案制定提供了有效的技术手段,为大牛地气田稳产保产提供保障。

DK13 well area is the earliest straight well development zone in scale production and construction of Daniudi gasfield, and it is also one of the main development blocks.Since 2003, DK13 well area has been developed for 14 years, and the production has been gradually reduced. In order to ensure the stable production of the well area, since 2008, 27 wells of low-yielding and low-pressure old wells have been implemented fill holes and transfer layer. According to the actual production conditions of the gas wells after fill holes and transfer layer, the evaluation method of the effect of fill holes and transfer layer is formulated. Based on this method, the development effect of 27 wells is evaluated from the gas production increasing and effective production rate. Finally, the results of the general well to sum up and analysis provides an effective technical means for the next step to fill the hole renovation program in the Daniudi gasfield.