CAJ | 학술논문

为了给海上稠油油田选择热采技术提供依据，对多元热流体吞吐和蒸汽吞吐2种热采方式的开发效果进行了评价。根据实际地质油藏参数建立了热采单井地质模型，运用数值模拟方法，设置了注入热焓相同和注入量相同2种方案，并结合现场先导试验对比分析了多元热流体吞吐和蒸汽吞吐的开发特征和效果。通过数值模拟得出：在注入热焓相同（4.3×1013 J）的条件下，多元热流体吞吐和蒸汽吞吐的采收率分别为18.3％和12.4％；在注入量相同（227 m3/d ）的条件下，多元热流体吞吐和蒸汽吞吐的采收率分别为17.5％和13.3％，多元热流体吞吐的采收率是蒸汽吞吐的1.3～1.5倍。在现场先导试验中，多元热流体井的产能是蒸汽吞吐井的1.5倍。研究结果表明，多元热流体吞吐比蒸汽吞吐提高采收率的幅度大，更适于开发海上稠油油田。
위료급해상주유유전선택열채기술제공의거，대다원열류체탄토화증기탄토2충열채방식적개발효과진행료평개。근거실제지질유장삼수건립료열채단정지질모형，운용수치모의방법，설치료주입열함상동화주입량상동2충방안，병결합현장선도시험대비분석료다원열류체탄토화증기탄토적개발특정화효과。통과수치모의득출：재주입열함상동（4.3×1013 J）적조건하，다원열류체탄토화증기탄토적채수솔분별위18.3％화12.4％；재주입량상동（227 m3/d ）적조건하，다원열류체탄토화증기탄토적채수솔분별위17.5％화13.3％，다원열류체탄토적채수솔시증기탄토적1.3～1.5배。재현장선도시험중，다원열류체정적산능시증기탄토정적1.5배。연구결과표명，다원열류체탄토비증기탄토제고채수솔적폭도대，경괄우개발해상주유유전。
Comparative study on development effect of multi-thermal fluid and steam huff and puff was done to provide the basis for optimum thermal technique selection in offshore heavy oilfields development .Geologic mod-el for single thermal single well was established according to the actual reservoir parameters using numerical simu -lation method and in which two injection schemes were set :the same injection enthalpy value ,and the same injection rate and combining with the field development pilot .The characteristics and effects of the two thermal techniques were comparatively analyzed .The numerical simulation result showed that the recovery rates of multi-thermal fluid and steam huff and puff methods were 18.3% and 12.4% ,at the same injected enthalpy (4.3 × 1013 J) ,and those for two thermal methods are 17.5% and 13.3% at the same injection rate (227 m3/d) ,the recovery rate of from multi-thermal fluid was 1.3 to 1.5 times of that from steam huff and puff method .The deliverability from multi-thermal fluid huff and puff well was 1.5 times of that from steam huff and puff well in the field pilot .So the multi-thermal fluid huff and puff ,which can enhance oil recovery more than steam huff and puff ,is more suitable for off-shore heavy oil fields development .