大庆油田SEC储量折耗一体化评估模型

Integrated evaluation model for SEC reserves depletion of Daqing Oilfield

SEC储量是大庆油田有限责任公司经营决策的核心资产,是油气生产的物质基础。油气资产折耗和SEC储量相关,是完全成本中的重要构成部分,决定了油田经营效益。大庆油田进入双特高含水后期,开发对象变差导致增储能力变差、油气资产折耗上升,因此亟需开展SEC储量折耗一体化优化研究,使储量和折耗指标最优。结合折耗计算公式、ARPS递减模型和经济极限产量计算模型等公式,进行科学归纳和推导,建立了SEC储量折耗一体化增储模型,并且在量化分析各种影响因素的基础上,明确了储量和折耗的优化次序和参数,给油田开发经营提出建议。模型应用在大庆油田年度SEC储量评估中,使油田增储能力逐年提升,油气资产折耗得到有效控制。研究成果具有通用性和适应性,可以在国内其他油田推广应用。

SEC reserves are the core asset for business decision-making of Daqing Oilfield Co.,Ltd.and are material basis for oil and gas production.The depletion of oil and gas assets is related to SEC reserves and is an important component of complete costs,determining operating benefits of oilfield.As Daqing Oilfield has entered late stage of dual ultra-high water cut,the deterioration of development targets causes decrease of reserves increasing capacity and increase of assets depletion.Therefore,integrated optimization research on SEC reserves and depletion is urgently required to optimize reserves and depletion indicators.Formulas of depletion calculation,ARPS decline model and economic limit production calculation model are combined for scientific induction and derivation to establish integrated model of SEC reserves and depletion.And optimization order and parameters of reserves and depletion are clarified based on quantitative analysis of various influencing factors,providing suggestions for oilfield development business.Application of the model in annual SEC reserves assessment of Daqing Oilfield leads to annual increase of oilfield’s reserves increasing capacity,with effective control of assets depletion.The research is universal and adaptable,and can be popularized in other domestic oilfields.