CAJ | 학술논문

为了评价厌氧激活内源微生物采油技术在蒙古林砾岩油藏中的应用情况,结合该油藏温度及物性特征对其开展了内源微生物厌氧激活实验研究.利用绝迹稀释法对内源菌进行了菌浓检测,通过自行设计的厌氧激活装置时内源菌激活过程中的压力、pH值、产气量及气体组分进行了跟踪监测,最后通过物理模拟实验对激活效果进行了验证.结果表明,内源菌厌氧激活效果非常显著,产生了大量的气体,产气率达到了2.4,厌氧激活物理模拟驱油实验提高原油采收率9.55%.
위료평개염양격활내원미생물채유기술재몽고림력암유장중적응용정황,결합해유장온도급물성특정대기개전료내원미생물염양격활실험연구.이용절적희석법대내원균진행료균농검측,통과자행설계적염양격활장치시내원균격활과정중적압력、pH치、산기량급기체조분진행료근종감측,최후통과물리모의실험대격활효과진행료험증.결과표명,내원균염양격활효과비상현저,산생료대량적기체,산기솔체도료2.4,염양격활물리모의구유실험제고원유채수솔9.55%.
In order to estimate the potential of stimulating indigenous microorganisms in Menggulin Oilfield, anaerobic stimulation experiment is carried out according to the reservoir conditions and fluid properties. The anaerobic stimulation experiment is conducted with the own-designed equipment. During cultivation, the cell concentrations of the indigenous microorganisms are enumerated by most probable number (MPN) method. The pressure, pH value, gas production and composition are also monitored and the stimulating ef-ficiency is then evaluated by the physical simulation method. The results suggest that the indigenous microorganisms could thrive and grow well under the reservoir condition. The gas-producing rate is 2.4 and the result of physical simulation exhibits a total enhanced oil recovery of 9.55 %.