海上边际油田延长测试技术  

Extended testing technology for offshore marginal oilfield

作　　者：岳宝林 刘斌 石洪福 解婷 刘子威 YUE Baolin;LIU Bin;SHI Hongfu;XIE Ting;LIU Ziwei(Tianjin Branch,CNOOC(China)Limited,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：《油气井测试》2021年第2期74-78,共5页Well Testing

基　　金：国家重大科技专项“渤海油田加密调整及提高采收率油藏工程技术示范”(2016ZX05058001)。

摘　　要：海上油田勘探评价井生产测试时间受投资成本与用海期限影响(一般测试6~12 h),测试时间短,动态资料可信程度低。渤海油田某自升式延长测试平台采用“延长测试平台+延长测试井口+外输油轮”的方案,可进行长周期的生产测试。渤海X边际油田岩性复杂,开发风险大,应用该平台对沙河街组潜山油藏开展了延长测试作业,获取了180 d的液量、油量、含水、流压、压力恢复等动态监测资料。应用数值模拟、物质平衡法、试井研究,重新认识了该油藏储量规模、水体倍数、单井动用储量、储层连通性、单井产能等信息,进一步量化了开发风险,对油田开发方案的编制具有良好的指导作用。The reliability of dynamic data of exploration evaluation well in offshore oilfield is low because the production test time is short due to the influence of investment cost and sea use period(generally 6~12 h).A jack up extended test platform in Bohai oilfield adopts the scheme of“extended test platform+extended test wellhead+export tanker”,which can carry out long-term production test.The lithology of Bohai X marginal oilfield is complex and the development risk is high.The platform was used to carry out extended testing operation for buried hill reservoir of Shahejie formation,and the dynamic monitoring data of liquid volume,oil volume,water cut,flow pressure and pressure build-up for 180 days were obtained.With the application of numerical simulation,material balance method and well test research,the reservoir reserves scale,water multiple,single well production reserves,reservoir connectivity,single well productivity and other information are re-recognized,and the development risk is further quantified,which has a good guiding role for the preparation of oilfield development plan.

关 键 词：渤海油田 边际油田 延长测试国 风险评估 潜山油藏 生屑云岩 动态监测 

分 类 号：TE353[石油与天然气工程—油气田开发工程]