涧峪岔油田属于典型低渗透油藏,经过5年多的注水开发,储层孔隙结构和渗透率发生了很大变化。层内及层间矛盾进一步加剧,形成了高渗带及渗流优势通道,水驱状况和剩余油分布日益复杂,油田稳产难度不断加大,综合含水83%。这不仅大大影响了原油的采出程度,而且增加了采油成本。为了提高水驱采收率,必须对大孔道和高渗透层进行封堵。调剖技术作为降低油井含水和提高原油采收率的有效手段,成为涧峪岔油田持续发展的关键。 Jiangyucha Oilfield is a typical low-permeability reservoir. After more than five years of waterflooding, the pore structure and permeability of the reservoir have undergone great changes. The contradictions in and between layers further aggravate, and formed the hyperosmotic belt and the predominant channel of seepage. The situation of waterflooding and the distribution of residual oil are increasingly complicated. The difficulty of stable production of oilfields is continuously increasing, and the comprehensive water content is 83%. This not only greatly affected the recovery of crude oil, but also increased the cost of oil recovery. In order to improve waterflood recovery, large channels and high permeable layers must be plugged. Profile control technology as an effective means to reduce the water content of oil wells and improve oil recovery has become the key to the sustainable development of Jiangyucha oilfield.