特低渗透油藏单井商业油流计算方法研究  

Research on the calculation method of commercial oil flow in singlewell of ultra-low permeability reservoir

作　　者：黄祥光[1] 郝春联[1] HUANG Xiangguang;HAO Chunlian(China Petroleum Liaohe Oilfield Company,Panjin,Liaoning,124010,China)

机构地区：[1]中国石油辽河油田公司,辽宁盘锦124010

出　　处：《天然气与石油》2024年第2期62-67,共6页Natural Gas and Oil

基　　金：中国石油天然气集团有限公司“十四五”前瞻性基础性科技项目“SEC储量评估方法技术与提高SEC储量接替率政策研究”(2022DJ7902)。

摘　　要：商业油流是储量起算标准的重要经济评价指标之一。中国石油行业标准Q/ SY 01180—2020《石油天然气经济可采储量评价规范》中给出的常规油藏稳定递减单井商业油流的计算方法,对生产初期产量递减较快、中后期产量递减相对平缓的“分段式”递减的特低渗油藏适用性较差。为此,基于常规油藏单一递减率的单井商业油流计算方法,应用盈亏平衡原理,结合“分段式”递减规律,建立了一种符合“分段式”递减规律的油藏单井商业油流计算模型,并以辽河坳陷太阳组为例,结合其油藏相关物性参数、单井投资及成本费用、油气价格等参数,利用所建立的“分段式”递减油藏单井商业油流计算模型,确定了评价油价为60美元/桶条件下的单井商业油流。研究结果对同类型油藏具有借鉴意义。At present,commercial oil flow has become one of the important economic evaluation indexes of the initial reserve calculation standard.The Chinese petroleum industry standard(Q/SY 01180—2020)Guideline for evaluation of petroleum economical ultimate recovery specifies the calculation method for the commercial oil flow of a single well with stable decline.However,it does not cover the calculation method for single wells experiencing a“two-stage”decline,characterized by a rapid decrease in production at the initial stage and a relatively gentle decline in the middle and late stages.In this regard,based on the single well commercial oil flow calculation method of single decline rate,this paper establishes a single well commercial oil flow calculation model that aligns with the oil“two-stage”decline pattern by applying the principle of profit and loss balance and incorporating the oil“two-stage”decline pattern.Taking the Sun Formation in the Liaohe Depression as a case study and considering factors such as drilling investment,operation cost,oil and gas price,the model is applied to determine the single well commercial oil flow under the evaluated oil price of 60 USD/barrel.The research results provide reference for reservoirs of the same nature.

关 键 词：“分段式”递减 储量起算标准 经济评价 商业油流 计算方法 

分 类 号：TE328[石油与天然气工程—油气田开发工程]