大老爷府油田老16-2井组氮气泡沫驱先导试验

Pilot Test of Nitrogen Foam Flooding in Lao 16-2 Well Group of Da Lao Ye Fu Oilfield

为提高大老爷府油田注水开发效果,针对目前区块开发中存在的主要问题,结合区块储层特征,开辟了老16-2井组先导试验井组,对该井组进行前期地质静态、动态分析及氮气泡沫驱适应性研究,结合储层特征,优化注入参数及工艺。通过水井注入氮气的模式,封堵高渗透出水层和补充地层能量,从而改善注采剖面,保持地层压力,扩大波及体积,提高动用程度,最终提高采收率。先导试验取得了较好开发效果,项技术的成功实施,为大老爷府油田提高注水开发效果提供了技术支持。

In order to improve the effect of water flooding Dalaoyefu oil field, aiming at the main problems in the development of the block, combined with the reservoir characteristics, has opened up the old 16 -2 well group pilot test wells group, early static geology of the well group, dynamic analysis and foam flooding adaptability research, combining with the characteristics of the reservoir, optimization the injection parameters and process. By injecting nitrogen into the water well , we can plug high permeable water production layer and replenish formation energy, so as to improve injection production profile, maintain formation pressure, expand sweep volume, improve production degree, and ultimately enhance oil recovery. The pilot test has achieved good results, and the successful implementation of this technology provides technical support for the improvement of water injection development effect in the big old lord oil field.