高温自生气泡沫体系性能的研究  

Study on Autogenous Gas Foam System in High Temperature

作　　者：邹斌[1] 刘冬青[1] 于田田[1] 王秋霞[1] 王善堂[1] 

机构地区：[1]中石化胜利油田分公司采油工艺研究院,东营257000

出　　处：《精细石油化工进展》2010年第4期19-21,共3页Advances in Fine Petrochemicals

摘　　要：利用高温高压界面张力仪研究了3种高温自生气体系CO(NH2)2+H2O、CO(NH2)2+NaNO2、NaNO2+NH4Cl在不同温度条件下的产气速率,并与胜利油田FCY泡沫剂复合使用,考察了自生气泡沫体系的封堵性能和驱油性能。结果表明,3种自生气泡沫体系的封堵压差均可达1.0MPa以上,都能满足现场使用要求。三种自生气泡沫体系在高温水驱+自生气驱后均提高了驱油效率,顺序为:NaNO2+NH4Cl泡沫体系>CO(NH2)2+H2O泡沫体系>CO(NH2)2+NaNO2泡沫体系,其中NaNO2+NH4Cl泡沫体系可提高驱油效率10%以上。CO(NH2)2+H2O+FCY泡沫体系在二连油田章古特南区14口井应用后,累计产油量1736t,平均周期油气比0.15,驱油效果好。Aerogenic rates of three kinds of autogenous gas CO（ NH2 ）2 ＋ H2O, CO（ NH2 ）2 ＋ NaNO2, NaNO2 ＋ NH4Cl at different temperatures were studied by using the high temperature and high pressure interfacial tensimeter. The performances of plugging and displacing were investigated by compounded with the Shengli Oilfield FCY foam agent. The result showed that the plugging pressure difference of three kinds of autogenous gas and foam system may reach above 1.0 MPa, which meat the field demands. Three kinds of autogenous gas and foam system may raise the oil displacement efficiency after high temperature water displacement and autogenous displacement, order of enhanced scope NaNO2 ＋ NH4Cl 〉 CO（NH2）2 ＋ H2O 〉 CO（NH2）2 ＋ NaNO2, NaNO2 ＋ NH4Cl may raise the displacement efficiency above 10%. After CO（ NH2 ）2 ＋ H2O ＋ FCY foam system were applied in Zhang Gute south area of Erenhot Oilfield, accumulated oil production amount was 1 736 t, average ratio of the period oil and gas was 0.15, the oil displacement effect is remarkable.

关 键 词：高温自生气 FCY泡沫剂 产气速率 封堵压差 驱替效率 

分 类 号：TE345[石油与天然气工程—油气田开发工程]