CAJ | 학술논문

通过对某CO2驱油区块的不同CO2分压条件下原油结蜡倾向和原油结蜡特性评价，计算出原油的结蜡速率、结蜡率及蜡含量，分析了原油的析蜡曲线特性。结果表明，CO2分压增大时原油的结蜡速率和结蜡率提高，蜡含量降低，蜡析出更明显；经CO2处理作用后原油析蜡点向低温方向移动，其蜡含量也相应地比未处理油样的蜡含量降低。
통과대모CO2구유구괴적불동CO2분압조건하원유결사경향화원유결사특성평개，계산출원유적결사속솔、결사솔급사함량，분석료원유적석사곡선특성。결과표명，CO2분압증대시원유적결사속솔화결사솔제고，사함량강저，사석출경명현；경CO2처리작용후원유석사점향저온방향이동，기사함량야상응지비미처리유양적사함량강저。
The wax deposition tendency and its characteristics in crude oil produce at a CO 2 flooding oilfield block were investigated under various CO 2 partial pressures .The wax deposition rate ,wax deposition percentage and wax content were calculated .The characteristics of wax pre-cipitation point curves were also analyzed .The results indicated that both wax deposition rate and wax deposition percentage of crude oil increased with CO 2 partial pressure increasing ,while wax content decrease meant wax deposition more significantly .In addition ,wax precipitation point of crude oil by CO2-processed moved in the lower temperature direction ,and the wax content was lower than that of unprocessed crude oil .