江汉新沟嘴组油藏注入水水质指标体系研究与应用

RESEARCH ON WATER-QUALITY INDEX SYSTEM OF INJECTED WATER IN XINGOUZUI FORMATION RESERVOIR

针对新沟嘴组油藏注入水与地层及其流体不配伍、造成储层伤害严重的问题,文章根据新沟嘴组储层的基本特征,总结出了造成储层伤害的潜在因素。在此基础上,开展注入水配伍性及其对储层伤害的研究,建立了新沟嘴组注水水质指标体系,并配套了水处理药剂,明显改善注入水水质。

In Xingouzui Formation reservoir of Jianghan oilfield,the injected water is not compatible with the formation and formation fluids and the reservoir damage is very severe.Some potential factors damaging reservoir are summarized based on the basic characteristics of Xingouzui Formation.In addition,the compatibility of injected water and its damage to reservoir have also been studied.Finally,the water-quality index system has been established and relevant water treatment agent has also been prepared in order to increase water quality of injected water obviously.