东西仁沟区块注水开发最大配注量的计算方法  

Calculation method of maximum injection volume for water injection development in East-West Rengou Block

作　　者：刘磊峰 王建民 宁涛[2] Liu Leifeng;Wang Jianmin;Ning Tao(School of Geosciences and Engineering,Xi’an University of Petroleum,Xi’an 710000;Yanchang Oilfield Co.Ltd.,Yan’an 716000,China)

机构地区：[1]西安石油大学地球科学与工程学院,陕西西安710000 [2]延长油田股份有限公司,陕西延安716000

出　　处：《延安大学学报（自然科学版）》2023年第1期112-115,120,共5页Journal of Yan'an University：Natural Science Edition

摘　　要：最大配注量是油田地面注水站点改造中的一个关键评估指标,该指标不仅要满足油田中后期的注水开发需求,同时还要达到降低成本的目的。为计算油田注水区块最大配注量,分析认为油藏形成有效驱替后,注水井需满足最大注水压差,油井要满足最大生产压差。按照油藏后期有效驱替时的地层压力保持水平估算油井后期的产液能力,结合水油比法推导注采比公式,从而得出最大单井配注量公式,以东西仁沟区块为例,计算该区块开发后期日注水量将达到5832 m^(3)/d。The maximum injection volume is a key evaluation index in the transformation of oil field surface water injection station,which should not only meet the needs of water injection development in the middle and later stage of the oil field,but also achieve the purpose of reducing cost.To calculate the maximum injection volume in the water injection block of the oil field,it is considered that after the effective displacement of the reservoir,the water injection well should meet the maximum water injection pressure difference,and the oil well should meet the maximum production pressure difference.The liquid production capacity in the later stage of the oil well is estimated according to the formation pressure maintenance level of the effective displacement in the later stage of the reservoir,and the formula of the maximum injection volume of a single well is obtained combined with the injectionproduction ratio formula of the water-oil ratio method.Taking the East-West Rengou Block as an example,it is calculated that the daily water injection in the late development stage of this block will reach 5832 m^(3)/d.

关 键 词：配注量 生产压差 地层压力 注采比 

分 类 号：TE357[石油与天然气工程—油气田开发工程]