水平井蒸汽驱开采稠油井网优化  

WELL PATTERN OPTIMIZATION FOR HEAVY OIL PRODUCTION WITH STEAM FLOOD THROUGH HORIZONTAL WELLS

作　　者：张艳玉[1] 徐岩光[1] 李洪君 朱贵友[1] 

机构地区：[1]中国石油大学（华东）石油工程学院,山东青岛266555 [2]中国石油天然气勘探开发公司,北京100034

出　　处：《大庆石油地质与开发》2010年第2期49-53,共5页Petroleum Geology & Oilfield Development in Daqing

摘　　要：为提高胜利油田某区块蒸汽吞吐后转蒸汽驱的采收率，利用数值模拟方法对其进行了水平井与直井联合井网优化研究。以10种井网为研究对象，分别进行了累计采油量、汽油比、采收率的计算和对比，并对各种井网进行了经济评价，筛选出了经济效益最好的井网。对于该区块，将角井改成水平井的九点井网开发效果最好，经济效益最高，且易于进行井网调整，但施工难度相对较大。研究结果表明，水平井与直井联合井网蒸汽驱开采稠油效果明显好于直井，水平井蒸汽驱作为蒸汽吞吐的接替技术，可以获得较好的开采效果及经济效益。To enhance the recovery factor from steam huff-and-puff to steam flood in one block of Shengli oilfield, the optimization study on combined pattern of vertical and horizontal wells is carried out by using numerical simulation. Based on 10 kinds of well patterns, the cumulative oil production, steam/oil ratio and recovery ratio are calculated and compared. The economic evaluation for all patterns is given, and the best cost-effective pattern is screened out. For this block, the nine-spot pattern whose angle wells are changed into the horizontal wells is the best and most cost-effective, easier to well pattern adjustment but harder to construction. The results show that the effect of the combined pattern of vertical and horizontal wells on heavy oil steam flooding is better than vertical pattern. The horizontal well steam flooding, which replaces steam huff-and-puff, can get better development and economic effects.

关 键 词：水平井 蒸汽驱 井网 数值模拟 

分 类 号：TE345[石油与天然气工程—油气田开发工程]