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首页> 外文会议>SPE Russian Petroleum Technology Conference >Selection Method of Activator for Indigenous Energized Microorganisms inDaqing Oilfield with Low Permeability Reservoirs
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Selection Method of Activator for Indigenous Energized Microorganisms inDaqing Oilfield with Low Permeability Reservoirs

机译：低渗透储层吲哚美油田的土着通电微生物活化剂的选择方法

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In recent years,microbial enhanced oil recovery methods have been systematically applied in the Daqingoilfield in order to stimulate and increase oil production,remaining difficult to be recovered after polymerflooding.In this paper,a selection method of activator for indigenous energized microorganisms in Daqingoilfield with low permeability reservoirs was proposed.Firstly,the number of microorganisms in samples taken from production and injection wells in the targetblock was measured.Based on the obtained results,the condition for the use of MEOR method in thestudied well system was determined.Secondly,laboratory experiments were conducted on the culture ofindigenous microorganisms and the optimal parameters of the activator for indigenous microorganisms wasdetermined by the obtained experiment results.Thirdly,the concentration of indigenous microorganisms,the pH value,interfacial tension,the viscosity change of the crude oil and the amount of generated gas afterthe hydrocarbons metabolization were measured.Based on the values of the crude oil viscosity and theamount of generated gas,the optimal ratio of nutrients(glucose and corn steep liquor)that are part of theactivator for indigenous microorganisms was determined.The experimental results showed that when the ratio of nutrients(glucose and corn liquor)is equal to1:2,the viscosity of the crude oil after the activation is minimal and the amount of generated gas after thehydrocarbons metabolization reaches the maximum value.The selected activator composition was usedto culture indigenous microorganisms in samples taken from production wells in the studied well system.The pressure increase was observed due to the occurrence of biogas during the process of hydrocarbondegradation by microorganisms.In the further development of the Daqing field with low permeabilityreservoirs using microbiological methods,it is recommended to use the selected activator composition forthe culture of indigenous microorganisms.
机译：近年来，微生物增强的石油回收方法已经系统地应用于Daqingoilfield，以刺激和增加油生产，仍然难以在聚合后恢复。在本文中，Daqingoilfield中的土着激励微生物活化剂的选择方法低提出了渗透性储存器。首先，测量了在所得结果中从生产和注射孔中取出的样品中的微生物的数量，确定了在测定的井系统中使用Meor方法的条件。第二，实验室实验通过所得实验结果对土着微生物的培养物和活化剂的最佳参数进行。第三，本土微生物的浓度，pH值，界面张力，原油粘度变化及其量碳氢化合物后产生的气体测量血管化。基于原油粘度和较大的生气量的值，确定了作为本土微生物的灭活剂的一部分的营养素（葡萄糖和玉米浸渍液）的最佳比率。实验结果表明，当比例营养物质（葡萄糖和玉米液）等于1：2，在激活后的原油粘度最小，在羟烃代谢后达到最大值后产生的气体。选定的活化剂组合物用于培养样品中的土着微生物从研究的井系统中的生产井取得。由于微生物的氨烃过程中沼气的发生，观察到压力增加。使用微生物方法的低渗透性的大庆场的进一步发展，建议使用选定的活化剂组合物在土着微生物中培养。

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