油田开发中的相态特征及流体组份研究——以大张坨凝析气藏为例  

THE APPLICATION OF PHASE CHARACTERISTICS AND FLUID COMPONENTS STUDY OF DA ZHANGTUO CONDENSATE GAS RESERVOIR

作　　者：杨广荣[1] 余元洲[1] 田金海[1] 杨树合[1] 

机构地区：[1]中国石油大港油田公司油气勘探开发技术研究中心,天津300280

出　　处：《新疆地质》2003年第2期230-232,共3页Xinjiang Geology

摘　　要：大张坨凝析气藏是在我国发现的高含量凝析气藏之一.开发中据相态特征及流体组份研究结果,适时调整开发方式.1994年开始试采, 1995年初实施循环注气开发.该气藏的开发经历了衰竭试采、循环注气2个开采过程,开发过程中定期取地层流体样品进行相态特征和流体组份研究,并注重其成果的应用,凝析油采出率29.0%,取得了较好的开发效果.证实了相态研究在凝析气藏循环注气开发全过程应用的重要性.Da Zhangtuo condensate gas reservoir is one of high-content condensate gas reservoirs presently found in our country, which was found in 1975 and carried out pilot production on June, 1994 after having been adjusted development pattern on the basis of the study results of phase characteristics and fluid components and applied cycle gas injection development based on partially keeping pressure. The development of Da Zhangtuo gas reservoir goes through two processes, that is, depletion pilot production and cycle gas injection. By the end of 1999, the condensate oil yields were reached 25.34×104t, and the condensate oil recovery was up to 29.0%. The better development results is closely related to the strata fluid samples are obtained periodically, phase characteristics and fluid components varying law study on the samples are carried out in time and the outcomes are applied properly. At the same time, the importance of the application of phase study in the whole process of cycle gas injection development of condensate gas reservoir is confirmed.

关 键 词：油田开发 相态特征 凝析气藏 循环注气开发 压力-温度相图法 拟三元相图法 

分 类 号：TE372[石油与天然气工程—油气田开发工程]