文章摘要
中图分类号:TE122
Evaluation of Reservoir Connectivity using Extend Well Test: A Case Study on Deepwater Complex Reservoir
投稿时间:2019-09-17  修订日期:2019-09-17
DOI:
中文关键词: 深水油藏  延长测试  压力监测  油藏连通模式
英文关键词: deepwater reservoir  extend well test  pressure monitoring  reservoir connectivity
基金项目:国家科技重大专项“海外重点油气田开发钻采关键技术”
作者单位E-mail
王亚青 中海油研究总院有限责任公司 wangyq7@cnooc.com.cn 
摘要点击次数: 6
全文下载次数: 
中文摘要:
      油藏连通模式的合理判断是决定油田开发成败的关键因素之一。巴西X深水盐下油田,发育复杂油水系统,在油藏评价阶段,仅应用常规的手段难以快速、经济有效的落实油藏连通模式,通过一种创新性的开发评价手段——延长测试(EWT),采用动静结合的方法,建立了X油田的“局部遮挡式”油藏模式。在对油田断层、隔夹层发育模式静态认识的基础上,结合测试目的,合理部署1注1采测试井位;利用“垂向多层完井、错层观察,平面中央激动、全局部署”的压力监测设计技术和多情景模拟的工作制度优化技术,在延长测试两口井生产时成功获取了全油田多层段压力响应变化,进一步验证静态认识,从而指导油田开发注采井网优化。
英文摘要:
      Reservoir connectivity evaluation is of great importance in oilfield development. There are multi oil water contacts in Brazilian pre-salt deepwater field. It is difficult to analysis reservoir connectivity quickly and cost-effectively during early stage of reservoir life. An innovative approach called Extend Well Test (EWT) are applied in Brazilian X oilfield. Combined the dynamic and static information, the “local baffle” reservoir model of X oilfield is implemented. On the basis of static understanding about faults sealing and interlayers distribution, producer and injector for EWT are defined according to test objectivities, which have been drilled in the reservoir evaluation stage. Pressure gauges are installed in multi-layers and multi-wells. Multi scenario are simulated, considering different reservoir parameters, production rates, and operating schedule etc. Through EWT, the full field pressure response is acquired. Downhole pressure transient analysis help to verify the rationality of geological understanding and guide the drainage pattern optimization
View Fulltext   查看/发表评论  下载PDF阅读器
关闭

手机扫一扫看 分享按钮