渤海油田稠油多元热流体热采有效期确定  

The Method of Determing Validity of Multi-Thermal Fluid Development in Bohai Heavy Oilfield

作　　者：王磊 袁忠超 郑伟 刘新光 汤婧 

机构地区：[1]中海油研究总院,北京100028

出　　处：《重庆科技学院学报（自然科学版）》2016年第6期17-19,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项"海上稠油热采技术"(2011ZX05024-005);中海石油(中国)有限公司综合科研项目"海上稠油热采开发方案设计方法及关键技术研究"(2013-YXZHKY-013)

摘　　要：根据N油田稠油热采井第一、二轮次实际动态数据，提出运用流温法和米采油指数法综合判定热采有效期。热采井定量评价结果显示，N油田第一轮次热采有效期平均为297d，而实际开采时间为500-800d。实际开采时间远超热采有效期，单井产能、流压递减速度快，地层亏空严重，供液能力不足，影响后续轮次开发效果。N油田热采井第二轮次实际生产时间超出了该轮次热采有效期，应转注第三轮次。Combing with thermal wells dynamic data of cycle one and cycle two of N oilfield, the integrated quanti- tative evaluation method by using bottom hole temperature and productivity index data has been first proposed. The study results show that the first cycle validity of N oilfield is 297 days, but the actual time is between 500 days and 800 days, which has far exceeded the thermal validity. And the productivity and bottom hole pressure of thermal well decrease quickly, accompanied by serious formation deplete, and insufficient liquid supply capacity, which result in impacting the effect of subsequent cycles development. The thermal wells of N oilfield should convert into the third cycles as soon as possible considering the fact that the actual time of cycle two of thermal wells had also exceeded the cycle two validity.

关 键 词：渤海油田 稠油 多元热流体 热采有效期 

分 类 号：TE345[石油与天然气工程—油气田开发工程]