储采比在勘探开发中的应用

Application of Reserve-Production Ratio in Exploration and Development

储采比是指一个国家、一个地区或一个油气田,在某年份剩余的可采储量与当年年产量的比值。通过储采比可以分析、判断油田所处开发阶段,稳产状况及其资源保证程度。如果储采比过大,会形成资金以储量存在的形式积压,储采比过小,产量保证程度低。研究了油田不同开发阶段储采比的变化规律以及稳产阶段储采比的界限值;根据储采比在不同开发阶段中的要求,研究了规划产量下所需新增的可采储量。最后,分析了中石化及所属油区的储采比现状及变化趋势。

Reserve-production ratio(RRP)is defined as the ratio of remaining recoverable reserves to annual production rate in a year for a country,an area or an oil-gas field.RRP can be analyzed and applied for diagnosis of a field's development stage,stable production situation and resource guarantee degree.If value of RRP is too high,it will overstock capital in the form of re-serves available;if the value is too low,it will result in low production guarantee degree.This paper studies the changing rules of RRP in different development stages of oilfields,the cut-off value in stable production stage,and incremental recoverable re-serves required under planed output in terms of requirements of RRP in different development stages.Finally,the status and changing trend of RRP in areas or fields subordinated by Sinopec are estimated.