渤海L油田开发效果与类似油田对比研究  

Comparative Study on Development Effect of Bohai L Oilfield and Similar Oilfields

作　　者：刘斌 瞿朝朝 周海燕 岳宝林 张伟 LIU Bin;QU Zhao-zhao;ZHOU Hai-yan;YUE Bao-lin;ZHANG Wei(CNOOC Tianjin Branch,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《承德石油高等专科学校学报》2021年第3期16-19,47,共5页Journal of Chengde Petroleum College

基　　金：“十三五”国家科技重大专项(渤海油田加密调整及提高采收率油藏工程技术示范):2016ZX05058-001。

摘　　要：针对海上油田开发受平台寿命、空间狭小等因素的制约,采取少井提产策略,随着生产开发的进行,逐渐暴露出含水上升快、产能下降快等问题,从采油速度入手,通过与陆上油田开发情况对比,海上油田采油速度变化剧烈,明显的特征是产量波动大,而且波动幅度大,无稳产期;产量递减速度快,与其井网密度偏低、对储量控制程度弱有较大的关系;与S油田相比,在相同的油井井网密度下,其采油速度是S油田的3倍;油田油水井数比偏高,按照理论测算合理的油水井数比应该保持在1左右。后期可通过进行生产井转注,使油水井数比降低到一个合理的区间,是提高采收率的一个可行的措施。As offshore oilfield development is restricted by platform life,narrow space and other factors,the strategy of producing with fewer wells is adopted.However,with the development of production,the oilfield is exposed to problems such as the rapid rise of water cut and rapid decline of production capacity.Therefore,by comparing with onshore oil field development,this paper studies the oil production rate of offshore oil field.The production rate changes dramatically,the obvious characteristic is that the output fluctuates greatly and the fluctuation range is large,there is no stable production period.The rapid rate of production decline is related to the low density of well pattern and the weak control degree of reserves.Compared with S Oilfield,under the same pattern density,oilfield oil recovery rate is three times that of S Oilfield.The ratio of oil and water wells in oil fields is too high,so the reasonable ratio of oil and water wells calculated theoretically should be kept around 1.It is a feasible measure to reduce the oil well ratio to a reasonable range through production well conversion in the later stage.

关 键 词：渤海L油田 采油速度 递减率 剩余油分布 矿场应用 

分 类 号：TE32[石油与天然气工程—油气田开发工程]