港中油田南一断块高含水后期提高开发效果研究  

Improving development effect of high water cut in late development stage of Nanyi fault block of Gangzhong oilfield

作　　者：李爱华[1] 龙文达 LI Aihua;LONG Wenda(N0.1 Oil Production Plant of Dagang Oilfield Company,PetroChina,Tianjin 300280,China;Downhole Technical ServiceCompany,Bohai Drilling Engineering Co.,Ltd.,PetroChina,Tianjin 300280,China)

机构地区：[1]中国石油大港油田分公司第一采油厂,天津300280 [2]中国石油渤海钻探工程有限公司井下技术服务分公司,天津300280

出　　处：《石油地质与工程》2019年第4期58-60,共3页Petroleum Geology and Engineering

摘　　要：港中油田南一断块为受构造和岩性控制的复杂断块油气藏,已进入高含水开发期,其纵向上合采合注,层间干扰严重,砂体动用程度不均,又因井况及地面原因,主力砂体大多已停采,断块处于低速低效开发阶段。2012年以来,结合油藏精细描述成果,对构造精细研究,并通过储层建模对单砂体剩余油分布进行研究,利用井网重建及精细注采调控措施挖潜剩余油。研究结果表明,断块日产油量由29.40t上升至126.40t,年产油量由1.19×10^4t上升至4.53×10^4t,提高采收率12%,增加可采储量82.00×10^4t。Nanyi fault block in Gangzhong oilfield is a complex fault block reservoir controlled by structure and lithology,which has entered the high water cut development period and has the characteristics of vertical coproduction and co-injection,serious inter-layer interference and uneven sand body use.Due to well conditions and ground conditions,most of the main sand bodies have stopped production,and the fault blocks were in the stage of low-speed and low-efficiency development.Since 2012,combined with the results of reservoir fine description,the fine study of the structure was carried out and the remaining oil distribution of single sand body was studied through reservoir modeling.Through well pattern reconstruction and fine injection-production control measures,the potential exploration of residual oil was conducted.The results show that the daily oil production of fault blocks increases from 29.40 t to 126.40 t,the annual oil production increases from 1.19×10^4 t to 4.53×10^4 t,the recovery rate increases by 12%,and the recoverable reserves increase by 82.00×10^4t.

关 键 词：港中油田 南一断块 井网重建 精细注采调控 二次开发 

分 类 号：TE341[石油与天然气工程—油气田开发工程]