当前位置: 首页 > 文章 > 辽河油田欧37区块CO_2吞吐试验研究 长江大学学报(自科版)农学卷 2014 (20) 4+95-96+100
Position: Home > Articles > Experiment Study on CO_2 Huff and Puff in Block OU-37 of Liaohe Oilfield Journal of Yangtze University(Natural Science Edition)Agricultural Science Volumn 2014 (20) 4+95-96+100

辽河油田欧37区块CO_2吞吐试验研究

作  者:
孙凯
单  位:
中石油辽河油田分公司兴隆台工程技术处
关键词:
辽河油田;CO2吞吐;采收率;换油率
摘  要:
针对辽河油田欧利坨油田37块油藏的特点,利用该区块原油和岩心进行CO2吞吐试验。研究表明,随着CO2注入量的增大,体积系数、膨胀系数、溶解汽油比和饱和压力呈增长趋势,其中溶解汽油比增幅较大,饱和压力增幅较小,而黏度、密度呈下降趋势,且降幅很小;随CO2注入量的增大,溶解汽油比呈快速增长趋势,饱和压力增长趋势不明显;在实际施工中,采用第1周期进行CO2吞吐较为适宜,并将CO2注入量控制在0.15PV。
译  名:
Experiment Study on CO_2 Huff and Puff in Block OU-37 of Liaohe Oilfield
作  者:
SUN Kai;Xinglongtai Engineering & Technology Department,Liaohe Oilfield Company,PetroChina;
关键词:
Liaohe Oilfield;;CO2huff and puff;;recovery efficiency;;oil displacement ratio
摘  要:
Aimed at the reservoir characteristics of the Block OU-37 in Liaohe Oilfield,CO2 Huff and Puff Tests are carried out by using crude oil and cores of the block.Study shows that expansion coefficient,volume coefficient,dissolved gas-oil ratio and saturation pressure increase as the CO2 injection amount rises,and dissolved gas-oil ratio amplitude is bigger while saturation pressure amplitudes is smaller,therefore CO2 Huff and Puff is applicable in the block,One cycle is appropriate,and injection volume of CO2 should be restricted to 0.15 PV.The second cycle is also necessary if the residual oil is considerable.

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