油气田剩余可采储量、剩余可采储采比和剩余可采程度的年度评价方法

发布时间：2018-08-28 06:12

【摘要】：剩余可采储量、剩余可采储采比和剩余可采程度是判断油气田当前开发形势的重要指标,是决策是否进行开发调整的重要基础,因而受到全球各石油公司的高度重视。根据中国行业标准,评价可采储量的方法主要包括水驱曲线法、产量递减法和预测模型法。水驱曲线法仅适用于水驱开发的油田,而产量递减法和预测模型法则适用于已经进入递减阶段的任何储集类型、驱动类型和开采方式的油气田。DeGolyer and MacNaughton和Ryder Scott两家评估公司对中国境内油气田的剩余经济可采储量进行年度储量资产价值评价所使用的方法是由美国证券交易委员会多部门团队提供的Arps指数递减的变异公式。利用适用于不同开发模式的广义指数递减法,推导得到了油气田年度经济可采储量、剩余经济可采储量、技术可采储量、剩余技术可采储量、剩余可采储采比和剩余可采程度的计算公式,并对DeGolyer and MacNaughton公司使用的变异指数递减法进行了说明和评价。通过8个油田实际应用结果表明,笔者提供的计算方法实用有效。
[Abstract]:The remaining recoverable reserves, the ratio of remaining recoverable reserves and the degree of residual recoverability are the important indexes to judge the current development situation of oil and gas fields, and are the important basis for the decision on whether to carry out the development adjustment or not, so the oil companies all over the world attach great importance to it. According to Chinese industry standards, the methods of evaluating recoverable reserves include water drive curve method, production decline method and prediction model method. The water drive curve method is only applicable to oil fields developed by water drive, while the production decline method and the prediction model method are applicable to any reservoir type that has entered the decline stage. The method used by DeGolyer and MacNaughton and Ryder Scott to evaluate the value of remaining recoverable reserves in oil and gas fields in China is by the Securities and Exchange Commission of the United States. A variation formula for decreasing Arps exponent will be provided by multi-departmental teams. By using the generalized exponential decline method suitable for different development models, the annual economic recoverable reserves, remaining economic recoverable reserves, technical recoverable reserves and remaining technical recoverable reserves of oil and gas fields are derived. The formula for calculating residual recoverable ratio and residual recoverable degree is given, and the variation index decline method used by DeGolyer and MacNaughton Company is explained and evaluated. The practical application results in 8 oilfields show that the calculation method provided by the author is practical and effective.
【作者单位】：中国石油勘探开发研究院;
【分类号】：TE328

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