1.According to stimulation mechanisms ofCO2 huff and puff,injecting CO2 into crude oil could reduce the oil viscosity and swell oil volume,increase formation driving force as well as decrease the formation resistance,so as to enhance the oil recovery.CO2吞吐工艺利用CO2注入原油,使原油黏度降低和体积...
and 8 levels were designed,to evaluate the reasonable oil recovery range of tight reservoirs using CO2 huff and puff. The sensitivity of recovery to each factor is also analyzed. Finally, based on this research, the CO2 huff and puff parameters are optimized (such as huff and puff timing, ...
Meanwhile, excessive CO2 injection volume did not significantly improve the performance of CO2 huff and puff, but it did reduce the CO2 utilization. Moreover, gravity caused the produced oil to deposit on the bottom surface of the blowout end of the fracture, which made oil recovery of the ...
CHEN Jumin,LI Jin,CAO Hongyan,et al.Mechanism and influence factors for CO2 huff and puff of horizontal flooding in shallow and thin heavy oil reservoir[J].Fault-Block Oil and Gas Field,2018,25(4):515-520. [15] 汤勇,赵雪梅,汪洋.CO2驱最小混相压力影响因素研究[J].油气藏评价与开发,2018,...
Research ArticleExperimentalStudyontheOilRecoveryPerformanceofCO 2 Huff-and-Puff Process in Fractured Tight Oil ReservoirsKun Qian , 1 Yu Huang , 2 Yanfeng He , 1 Xiangji Dou , 1 and Xiaojun Wu11 School of Petroleum Engineering, Changzhou University, Changzhou 213164, China2 Oil and Gas Product...
为展现新疆大学优秀专家教师风采及其科研教学成果,特开设“春华秋实”栏目,以飨读者。 今日论文推介 Bo Wei, He Xiaobiao, Li Xin*, Ju Yiwen, Jin Jun, Luo Qiang. Residual oil contents of dolomicrite and sandy dolomite tight...
and by focusing on the two key factors of cost and benefit,the CO2 EOR method applied in low permeability reservoirs is extended to the medium-high permeability reservoirs,and also developed from single flooding/huff and puff to combination of them,which provides strong technical support for ...
关键词:克拉玛依油田;上乌尔禾组;低渗稠油油藏;CO2;表面活性剂;复合吞吐;数值摸拟;采收率 中图分类号:TE384 文献标识码:A Development of Low⁃Permeability Heavy Oil Reservoirs by CO2 + Surfactant Combination Huff and Puff : A Case Study of Upper Wuerhe Formation Reservoir in Southern Block 5, ...
[7]GONDIKEN S.Camurlu field immiscible CO2 huff and puff pilot project[J]. SPE15749, 1987: 1-4. [8]HASKIN H K, ALSTON R B.An evaluation of CO2 huff-n-puff tests in Texas[J]. Journal of Petroleum Technology, 1989, 41(2): 177-184. ...
andafeasiblemethodisimportanttoimprovetherecoveryofshalereservoir.SC-CO2hasdualpropertiesofgasandliquidandhasgoodmasstransferabilityandsolubility.Therefore,thispaperputsforwardthedevelopmentmodeofSC-CO2huff-and-puff,buildingtheexperimentalequipment,andtheeffectoftheinjectionpressure,soakingtime,huffandpuffrotationonthe...