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本文以胜利油田的一个油田为实例,阐述了一个开发单元的合理井网密度的选择方法。应用油气田开发工程经济学原理,逐项分析采油速度、原油采收率、开发年限、采油成本、投资效果、采油企业纯收入、原油价格、劳动生产率等主要因素对合理井网密度的影响。在油田开发方案选择时,如何应用价值工程法,定量地综合各种地质、开发和经济因素,选择最佳方案。最后,以被选方案为例,说明了最高允许含水百分数、最低合理单井日产油量、开发年限和最终采收率的确定方法。
In this paper, an oilfield in Shengli Oilfield is taken as an example to illustrate a reasonable selection of well pattern density for a development unit. Applying the principle of economic development in oil and gas field, the author analyzes the influence of major factors such as oil recovery rate, crude oil recovery rate, development period, oil recovery cost, investment effect, net income of oil extraction enterprises, crude oil price and labor productivity on reasonable well pattern density. How to apply value engineering method to choose the optimal solution quantitatively when integrating various geological, development and economic factors in the choice of oilfield development plan. Finally, taking the selected scenario as an example, the method of determining the maximum allowable water content, the minimum reasonable single-well daily oil production, the development period and the ultimate recovery ratio are described.