石油与天然气地质 ›› 2001, Vol. 22 ›› Issue (4): 359-361.doi: 10.11743/ogg20010416

• 油气空间 • 上一篇    下一篇

中原油田的微生物采油试验

莫冰, 孙薇, 张还恩, 杨瑞敏, 杨朝光, 谢立新, 钱思平   

  1. 中原油田勘探开发科学研究院采收率研究所, 河南濮阳, 457001
  • 收稿日期:2001-07-04 出版日期:2001-12-25 发布日期:2012-01-16

TEST OF MICROBIAL ENHANCED OIL RECOVERY IN ZHONGYUAN OILFIELD

Mo Bing, Sun Wei, Zhang Huan'en, Yang Ruimin, Yang Chaoguang, Xie Lixin, Qian Siping   

  1. Oil Recovery Rate Branch of Researoh Institnte of Petroleum Exploration and Development, Zhongyuan Oilfields, Puyang, Henan
  • Received:2001-07-04 Online:2001-12-25 Published:2012-01-16

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摘要：

中原油田属于典型的高温高盐油藏(温度:60～10℃,矿化度:6×104～2×104 mg/L).采用HUNGATE厌氧技术,从140个地层水样品中富集筛选到了41组混合菌群,细菌形态多为杆状,某些有芽胞.这些培养物最适宜的生长温度为60～80℃,其丰度随矿化度增高而减少.培养物的主要代谢产物--有机酸、醇等既可增大岩层渗透率,又可改变油水界面.因此能大幅度提高原油采收率.中原油田文15块的原油室内试验结果表明,其提高原油采收率在6%以上.井场现场试验亦取得了良好效果,投入产出比达1:4.1.

关键词: 微生物, 菌种, 采油, 中原油田

Abstract:

Oil pools in Zhongyuan Oilfields are typical high temperature and high salinity (temperature:60℃～130℃;brine salinity 6×104～32×104 mg/L)pools.41 bacterial populations were selected from 140 formation water samples by using HUNGATE technique.Most of the bacteria are bacilli form,some of them have gemmae.The most favourable temperature for the cultured bacteria is within 60℃～80℃,the abundance of the bacteria decreases with the increasing of salinity.The main metabolic products are organic acid and alcoho which could increase reservoir permeability,improve oil water boundary and considerably increase recovery percent.The result of laboratory test of Wen-15 block in Zhongyuan Oilfields indicates that the oil recovery factor could be increased by 6% or more.The test made in well site had also got fine result,input ouput ratio is 1:4.1.

Key words: microbia, genus of bacteria, oil recovery, Zhongyuan Oilfield

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