水溶气影响气田开采的实验研究  

Experimental Research on Effects of Water-soluble Gas to Gas Field

作　　者：沈羞月 郭平[1] 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,成都610500

出　　处：《重庆科技学院学报（自然科学版）》2014年第2期95-97,101,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家科技重大专项(2008ZX05056-02-02-03)

摘　　要：为了研究气藏地层水中水溶气的影响,在有水体情况下对荔湾3-1气田SAND1、SAND2、SAND3和SAND4地层进行两组长岩心衰竭实验。根据地层水配置水体,并饱和凝析气。SAND1、SAND2和SAND3层分别在1、7、17倍水体下进行合采,SAND4在50倍水体下进行单层衰竭实验。在"考虑水中溶解气"和"不考虑水中溶解气"情况下分别计算凝析油采收率和气体采收率。结果表明,"不考虑水中溶解气"情况下的采收率相对高出很多。In order to study the effects of water - soluble gas, we design two core depletion experiments. SAND1, SAND2, SAND3 are commingling produced and the water multiples is 1, 7, 17, respectively. The second is SAND4 single - layer depletion experiment using 50 times water. Finally, condensate recovery and gas recovery are calculated under the conditions of ＂consider the water - soluble gas＂ and ＂do not consider the water - soluble gas＂. The results show that the rate of recovery under ＂do not consider water - soluble gas＂ is much higher than ＂consider the water - soluble gas＂, and the recovery of SAND4 is even higher a lot.

关 键 词：水溶气 采收率 凝析气藏 长岩心衰竭 多层合采 

分 类 号：TE357[石油与天然气工程—油气田开发工程]