文72块沙三中油藏烃气驱室内实验  

Lab Test of Hydrocarbon Gas Injection in Middle Sha-3Reservoir of Block Wen-72.

作　　者：曾贤辉[1] 彭鹏商[1] 王进安[1] 陈德斌[1] 罗松刚[1] 

机构地区：[1]中国石化中原油田分公司勘探开发科学研究院,河南濮阳457001

出　　处：《新疆石油地质》2003年第2期161-163,共3页Xinjiang Petroleum Geology

摘　　要：文留油田文72块沙三中低渗透挥发性油藏注烃类气室内实验研究包括地层流体的物理性质研究、注入溶剂的组分分析以及通过细管实验研究地层流体同注入溶剂在130℃时的最小混相压力。研究表明,最小混相压力为47.1MPa.通过长岩心模拟目前油藏条件,进行水驱、烃类气驱以及气与水交替驱实验研究,天然气驱实验表现出近混相的特征,气体突破时,采收率为65.7%,最终采收率能达到86.1%;水驱实验表明无水采收率能达到61.9%,当含水为98%时,采收率能达到64.5%;水驱后进行天然气与水交替注入,共进行3个循环,各个气、水段塞为0.2PV,最终采收率达到95.22%,比水驱提高30.69个百分点。The lab test of hydrocarbon gas injection into low permeability and volatile reservoir in Block Wen-72of Wenliu oilfield is presented,which includes physical property study of formation fluid,injected solvent component analysis and the minimum miscibility pres-sure of formation fluid and injected solvent at130℃through slim tube.The study shows that the minimum miscibility pressure is47.1Mpa,the recovery factor is65.7%when gas breakthrough is made,the ultimate recovery factor is86.1%.Water flooding lab test indicates that the breakthrough recovery is up to61.9%,the recovery factor is up to64.5%when water cut is up to98%.Gas /water alternating injection fol-lowing water flooding includes3cycles for each plug of0.2PV.The ultimate recovery factor of95.22%is higher than that of water flooding by30.69%.

关 键 词：文留油田 低渗透挥发性油藏 注入溶剂 天然气驱 水驱 烃类气驱 气与水交替驱 细管实验 采收率 

分 类 号：TE341[石油与天然气工程—油气田开发工程] TE319