提高低效热采吞吐井开发效果的技术发展动向  

The technical developing trend of improving recovery effect of inefficient steam huff-puff wells

作　　者：周淑娟[1] 陈德春[1] 秦延才[2] 孟红霞[1] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东东营257061 [2]中国石化胜利油田分公司河口采油厂,山东东营257200

出　　处：《复杂油气藏》2013年第3期79-82,共4页Complex Hydrocarbon Reservoirs

摘　　要：目前我国稠油开发以蒸汽吞吐为主,但随着蒸汽吞吐轮次的增加,周期产油量、油气比下降,含水率高,开采效果变差,且蒸汽吞吐采收率较低,一般在20%左右。针对这一问题,采取各种措施提高蒸汽吞吐后期的开采效果,主要包括多井整体吞吐、一注多采、复合蒸汽吞吐、蒸汽驱、蒸汽辅助重力泄油、火烧油层等热采技术和化学吞吐、CO2吞吐等冷采技术以及各种改善蒸汽吞吐效果的工艺措施。综述各种改善蒸汽吞吐效果的工艺技术及其增产机理,分析各种稠油开采技术存在的问题和不足,指出稠油复合开采及水平井应用是稠油开采的发展方向。At present, steam huff and puff is a main way to develop heavy oil reservoirs in China. With huff - puff cycle time increases, periodic oil production and oil - steam ratio decrease, water cut goes up, and recovery effect becomes worse. Recovery rate of steam huff- puff is lower and about 20% in general. Aiming at the problem, various measures are taken to improve recovery effect at late stage of steam huff - puff. These measures mainly include multi - well cyclic steam stimula- tion, chemical or CO2 assisted steam huff - puff, steam flooding, steam assisted gravity drainage, chemical huff - puff, C02 huff - puff, and so on. Based on the review of improving heavy oil recovery technologies and stimulation mechanisms, exist- ing problems and disadvantages of these technologies were analyzed and further developing direction of heavy oil recovery is the chemical or CO2 assisted steam huff - puff and the horizontal well technology.

关 键 词：低效热采吞吐井 增产措施 发展动向 稠油 

分 类 号：TE355[石油与天然气工程—油气田开发工程]