论文部分内容阅读
准噶尔盆地腹部彩南油田三工河组油藏经多年高速开发,有相当一批采油井已进入中、高含水期,而这部分井大多都只有单油层生产,无堵隔水、补层等措施可采取。根据油藏原油粘度小、流度大这一特点,在对逐井油水接触关系等方面进行深入研究后,确定了针对不同类型井的提液时机,适当提高单井的产液量,使其含水率基本稳定或下降,产油量明显上升,从而对整个油藏的稳产起了重要作用,同时也可提高这部分井的最终采收率,经济效益十分显著。
After years of high-speed development of the Sangonghe Formation reservoir in the Cainan oilfield in the abdomen of the Junggar basin, quite a number of oil production wells have entered the middle and high water cut period. Most of these wells are only produced in single oil zone without plugging water and stratification Measures can be taken. According to the characteristics of small viscosity and high fluidity of crude oil in the reservoir, the relationship between the oil well contact and the well is studied in depth, and the timing of liquid extraction for different types of wells is determined. The output of single well is increased appropriately to make it The water content basically stabilizes or drops, and the oil production increases obviously, which plays an important role in the stable production of the entire reservoir. At the same time, the ultimate recovery of this part of well can also be improved, and the economic benefit is very significant.