低渗透油田低效井技术经济评价标准的建立

ESTABLISHMENT OF THE TECHNICAL AND ECONOMIC EVALUATION STANDARD FOR THE INEFFICIENT WELLS OF LOW-PERMEABILITY OILFIELDS

由于低渗透油田地质条件和开发效果等因素的影响,在开发过程中会产生一部分低产低效井,目前矿场没有统一的界定低产低效井的标准,常常以主观判断为主。根据经济评价的盈亏平衡原理,深入分析单井成本、税金的构成,建立了抽油和提捞两种不同开采方式低效井的技术经济界限模型,从而更准确地判断各油田低效井的界限标准,提出的低效井技术经济评价标准不但可以用于低渗透油田,也可推广到其他类型的油田,具有较高的借鉴价值和良好的应用前景。

Due to geological conditions and development effects of the low permeability oilfield,there are some low-yielding inefficient wells in the development process. There is not any unified standard for the definition of low-yielding inefficient wells in the mines. We often rely on the subjective judgments. According to the economic evaluation of the break-even principle, we analyzed the composition of the single well costs and taxes carefully and established a model of pumping and bailing methods which can determine the technical and economic boundaries of the inefficient wells more accurately. The standards can be not only used in low-permeability oilfields, but also can be popularized in other kinds of oilfields with high reference value and a good prospect.