砾岩油藏内源微生物驱油动态跟踪与评价
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摘要
为了提高微生物驱油过程调控的目的性,利用生化指标监测技术对新疆克拉玛依油田七中区现场油井采出样品中微生物浓度、营养物、产物生成量等参数进行了连续的动态监测,并对油田现场反馈的生产动态数据进行了分析评价。七中区现场试验结果表明:内源菌激活期间,总菌密度增加了10~2~10~3个/mL,烃氧化菌(HOB)密度最高提高10~4个/mL,阶段增油量1.6万t,阶段提高采收率2.3%。增油效果随着烃氧化菌密度的增加而增加,为微生物驱油动态跟踪和效果评价提供了良好的借鉴。
To improve the control of microbial oil displacement process,we used biochemical indicators monitoring technology to monitor the change of microorganism concentration,nutrient utilization and products formation of the samples from Qizhong block of Karamay Oil Fields in Xinjiang. Meanwhile,oil field feedback data were analyzed and evaluated. Field test results show that the cell density of endogenous bacteria was increased by 10~2 to 10~3cell/mL,the cell density of hydrocarbon oxidizing bacteria( HOB) was increased by 104 cell/mL,the stage oil increment was 1. 6 × 10~4 tons,and the oil recovery efficiency increased by 2. 3% during the period of activating endogenous bacteria. The effect of oil increment was positively correlated with the concentration of HOB. Our findings provide a good reference for microbial oil displacement dynamic tracking and effect evaluation.
To improve the control of microbial oil displacement process,we used biochemical indicators monitoring technology to monitor the change of microorganism concentration,nutrient utilization and products formation of the samples from Qizhong block of Karamay Oil Fields in Xinjiang. Meanwhile,oil field feedback data were analyzed and evaluated. Field test results show that the cell density of endogenous bacteria was increased by 10~2 to 10~3cell/mL,the cell density of hydrocarbon oxidizing bacteria( HOB) was increased by 104 cell/mL,the stage oil increment was 1. 6 × 10~4 tons,and the oil recovery efficiency increased by 2. 3% during the period of activating endogenous bacteria. The effect of oil increment was positively correlated with the concentration of HOB. Our findings provide a good reference for microbial oil displacement dynamic tracking and effect evaluation.
引文
[1]王红波,彭晓钟,吴运强.克拉玛依油田六中区地层水内源微生物激活现场试验[J].新疆石油地质,2011,32(5):523-524.
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[2]隋同花,邓新颖,冯新永,等.改善聚合物驱油效果的调整措施[J].油气田地面工程,2006,25(7):13-14.
[3]李红,邓泳,孟亚玲.新疆油田高含水油藏本源微生物驱矿场试验研究[J].南开大学学报(自然科学版),2013,46(1):108-111.
[4]张廷阁.本源微生物激活体系研究[D].廊坊:中国科学院研究生院(渗流流体力学研究所),2006:21-30.
[5]谷峻,石成芳,吴晓磊,等.油藏微生物群落研究的方法学[J].生态学报,2007,27(1):324-328.
[6]国家能源局.微生物驱油技术规范:SY/T 6888—2012[S].北京:石油工业出版社,2012.
[7]齐香君,徐婷婷.定量测定铜绿假单孢菌发酵液中鼠李糖脂的方法学研究[J].陕西科技大学学报,2010,28(6):39-42.
[8]中国石油天然气总公司.油田动态分析技术要求:SY/T6225—1996[S].北京:石油工业出版社,1996.
[9]柯从玉,吴刚,游靖.微生物驱油产出液中有机酸的监测及对提高采收率的作用研究[J].西安石油大学学报(自然科学版),2013,28(3):54-58.
[10]包木太,牟伯中,王修林.采油微生物代谢产物分析[J].油田化学,2002,19(2):188-192.
[11]孔祥平,包木太,马代鑫.油田水中细菌群落分析[J].油田化学,2003,20(4):372-376.
[12]向廷生,冯庆贤,NAZINA N T.大港孔店油田内源微生物代谢产物监测分析[J].石油天然气学报,2006,28(5):128-131.
[13]何江川,王元基,廖广志,等.油田开发战略性接替技术[M].北京:石油工业出版社,2013:28-34.
[14]舒福昌,佘跃惠,冯庆贤,等.大港孔店油田本源微生物代谢产物监测分析[J].石油天然气学报(江汉石油学院学报),2006,28(5):128-131.