直平组合SAGD注采井网及参数影响研究  

Effects of injection-production pattern and parameter on SAGD using combination of vertical and horizontal wells

作　　者：张辉登 李春兰[1] 黄世军[1] 魏绍蕾[1] 韩建亭[2] 

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]中国石化中原油田分公司采油二厂,河南濮阳457532

出　　处：《断块油气田》2015年第1期94-97,共4页Fault-Block Oil & Gas Field

基　　金：国家科技重大专项"海上稠油高效开发新技术"课题"海上稠油热采综合评价方法研究"(2011ZX05024-005-006)

摘　　要：根据辽河油田某区块馆陶组油层蒸汽辅助重力泄油(SAGD)先导试验区实际静态数据和动态数据,建立了油藏数值模型,应用该模型对注采井网和注采参数进行了研究。根据测井曲线和动态分析,确定地层中有3段物性较差的地层,且油藏顶部和底部分别发育有水层。对比了2种不同的轮换注汽方式及连续注汽的开发效果,结果表明,轮换注汽能更好地驱替直井井间的剩余油,因而效果好于连续注汽,能够得到较长的稳产期和更高的采收率。关于注采参数,主要研究了注汽速度对最优采注比的影响,模拟了不同注汽速度和不同采注比组合下的SAGD生产过程。通过对比累计产油量,得出了注汽速度与最优采注比的关系曲线。Based on the development of Guantao pilot block in Liaohe Oilfield, a reservoir numerical model is built to research the effect of injection-production pattern and parameter on Steam-Assisted Gravity Drainage（SAGD）. The model between two aqueous layers contains three low permeability layers in the light of well log and production data. The results of two injection-production patterns show that alternate steam injection is better than that of steam injection, and it can bring long stable production period and high recovery ratio. The effect between steam injection rate and production factor is researched and the procedure is simulated with different injection rate and production-injection ratio. The relation curve of injection rate and optimal production-injection ratio is obtained through contrasting the cumulative oil production.

关 键 词：蒸汽辅助重力泄油 直平组合 轮换注汽 采注比 

分 类 号：TE33[石油与天然气工程—油气田开发工程]