GN油田201块钻完井滤液伤害解除技术

Remove technology of drilling and completion fluid filtrate damage in GN oilfield 201

由于前期对GN油田201块储层物性认识不足,在钻完井的过程中又没有采取有效的储层保护措施,使得新投产油井无产能。在随后的生产过程中,盲目采用了压裂、酸化解堵、泡沫混排、氮气混排等改造措施,措施实施后油井产量并没有恢复,通过复合解堵解除钻完井滤液的污染,提高地层的有效渗透率和油相渗透率,使新投无效井恢复生机。

Because of a shortage of preliminary understanding of reservoir physical properties.In the process of drilling and completion without effective reservoir protection measures,make the new production of oil well without oil.In the subsequent production process,blindly use reform measures such as fracturing,acidification. The well production have not recovered after the implementation of the measures.Remove pollution of drilling and completion fluid filtrate through the remove plugging technology improving the effective permeability of strata and the oil phase permeability,make the new invalid wells to resume production.