CAJ | 학술논문

针对Y区块注CO2混相驱动态开发评价方法不够全面不够系统、利用水驱童氏图版评价气驱开发效果不够准确等特点，首先定义了A型气驱特征曲线，在此基础上推导了适合Y区块的CO2混相驱拟含气率和采出程度的关系式，绘制了CO2混相驱特征理论图版，用改进后的图版预测了Y区块注CO2后所提高的最大采收率，并将预测的采收率与现场预测的采收率进行比较，其结果比较吻合，说明该图版能很好地预测CO2混相驱动态开发效果，同时对该区块下一步的开发及评价具有指导意义。
침대Y구괴주CO2혼상구동태개발평개방법불구전면불구계통、이용수구동씨도판평개기구개발효과불구준학등특점，수선정의료A형기구특정곡선，재차기출상추도료괄합Y구괴적CO2혼상구의함기솔화채출정도적관계식，회제료CO2혼상구특정이론도판，용개진후적도판예측료Y구괴주CO2후소제고적최대채수솔，병장예측적채수솔여현장예측적채수솔진행비교，기결과비교문합，설명해도판능흔호지예측CO2혼상구동태개발효과，동시대해구괴하일보적개발급평개구유지도의의。
Because the dynamic evaluation methods of CO2 miscible drive is not enough comprehensive and systematic,and also the improved water flooding chart is not suitable for the evaluation of the CO2 miscible drive,we first define the type A gas flooding characteristic curve. Then on the basis of it,we have derived the relational expression between the equivalent gas rate and recovery degree,and draw the calibration chart. We use this chart to predict the biggest increased recovery of Y block after injecting CO2,and by comparing with the scene results,we find that two of them are consistent. So the results that the chart is a good predictor of the biggest increased recovery after injecting CO2. In general,this method is more significant for the block’s further development.