江苏油田复杂小断块高含水油藏注采井网优化技术  

Optimization technology of injection-production well pattern in the complex small-fault-block high water cut reservoirs of Jiangsu oilfield

作　　者：孔维军 张建宁[1] 苏书震 程平[1] 师国记[1] KONG Weijun;ZHANG Jianning;SU Shuzhen;CHENG Ping;SHI Guoji(Oil Production Plant No.1,Jiangsu Oilfield Branch,SINOPEC,Jiang Su Yang Zhou 225265 China)

机构地区：[1]中国石油化工股份有限公司江苏油田分公司采油一厂,江苏扬州225265

出　　处：《内蒙古石油化工》2024年第1期82-86,共5页Inner Mongolia Petrochemical Industry

摘　　要：江苏油田复杂小断块油藏经过长期的注水开发后,目前处于中高含水开发期。现阶段储层非均质性对注采井网的影响更加突出,局部存在低效无效注水循环问题,亟需优化调整注采井网。根据非均质油藏剩余油富集类型和影响因素,在原井网基础上,利用油藏数值模拟方法,开展相控条件下的注采井网优化技术政策研究。根据模拟结果,确立了抽稀井网和转注高含水油井两种注采井网优化技术的政策界限,指导陈2断块、韦2断块注采井网优化调整,取得了良好的应用效果,为改善高含水油藏水驱开发效果提供了技术支撑。The complicate small-fault-block reservoirs of Jiangsu oilfield have been in the high water cut development stage,after the long-term water flooding.At present,the heterogeneity of reservoirs is more prominent to the injection-production well pattern,and there are inefficient and ineffective water flooding cycles in the local area of the reservoirs.It is urgent to carry out research on the optimization and adjustment of the injection-production well pattern.Based on the original well pattern,the remaining oil enrichment types and influencing factors of heterogeneous reservoir,the reservoir numerical simulation technology is used to carry out the simulation study on the optimization technology policy of well pattern under the condition of phase control.According to the simulation results,the optimization technology policy limitations on the well pattern have been built,including in the well pattern thinning and high water cut transfer.They have been applied to instruct the optimization and adjustment on the original well pattern reconstruction in Chen-2 fault block and Wei-2 fault block,and have obtained good application results,which provide the technical support for the water flooding improvement of high water cut reservoirs.

关 键 词：复杂小断块 高含水油藏 注采井网 优化调整 水驱效果 

分 类 号：TE347[石油与天然气工程—油气田开发工程]