大庆油田是在六十年代初就全面实行早期注水保持压力开发的大型油田。由于其原油产量在相当长时间内在全国具有举足轻重的地位,所以,掌握油田注水开发全过程的生产特点和变化规律,预测注水采油的采收率,以指导编制油田长期生产规划,这是一项极为重要的任务。为此,除了进行油田地质、油层物理和渗流力学的研究和预测计算外,又在一九六五年以较小的井距进行了注水开发全过程的矿场试验。在试验过程中认真录取了各 Daqing Oilfield is a large oilfield developed in the early 1960s to fully implement early water flooding pressure. As its crude oil production plays a decisive role in the country for quite a long time, it is important to know the production characteristics and changes of the whole process of oilfield waterflooding and predict the oil recovery rate to guide the preparation of long-term oilfield production planning. Extremely important task. To this end, in addition to carrying out research and prediction calculations on the geology, reservoir physics and seepage mechanics of oil fields, a field trial of the entire waterflooding process was conducted in 1965 at a relatively small well spacing. During the test carefully admitted each