论文部分内容阅读
张渠二区长2底水油藏具有高水饱,储层非均质性强,底水发育的特点,在长期的注水开发过程中,由于油藏的地质特征、储层的各项物性参数和油水界面都在发生变化,平面和剖面上的矛盾日益突出,水驱油效率变差,油井含水大幅度上升等问题大大降低了开发效果。为扩大水波及体积,提高区块开发效果,针对张渠二区地质特征,在该区块开展了注水井深部调剖试验。措施后对其效果进行跟踪分析,综合地质条件和开发动态对调剖效果进行归纳总结,认为该措施对取得了良好的成效。
Zhangquandi 2 District 2 bottom water reservoir has the characteristics of high water saturation, strong reservoir heterogeneity and bottom water development. Due to the geological characteristics of the reservoir and the physical properties of the reservoir during the long-term waterflooding development, The parameters and the interface of oil and water are changing, the contradiction between plane and profile is more and more prominent, the efficiency of water flooding is deteriorated, and the drastic increase of oil well water drastically reduces the development effect. In order to expand water wave and volume and improve the effect of block development, according to the geological characteristics of Zhangqu II, deep injection profile control experiments were carried out in this block. After the measures were taken, the effect was traced and analyzed. Based on the comprehensive geological conditions and the development trend, the profile control effects were summarized and concluded that the measures had achieved good results.