Monte Carlo Simulation on the Effect of Fracture Characteristics on Reduction of Permeability by In-Situ Bacteria Growth

机译：断裂特征对原位细菌生长降低渗透性影响的蒙特卡罗模拟

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We have simulated the effects of fracture characteristics on thernreduction of effective permeability of fractured rocks due tornin-situ bacteria growth. A solute is injected continuously tornprovide food for the growth of in-situ bacteria. We used arnpower law for fracture length distribution and a fBm forrnfracture aperture spatial distribution. The results show that insiturnbacteria growth reduces the permeability hyperbolically,rnbut the porosity of backbone fracture does not changernsignificantly. It shows that the reduction of the permeabilityrnproceeds faster for smaller values of length exponent and forrnlarger values of Hurst exponent. The fracture lengthrndistribution has a stronger effect on the speed of permeabilityrnreduction than the aperture spatial distribution. The timernneeded to reduce permeability is inversely proportional to thernhydraulic gradient.

机译：我们已经模拟了断裂特征对降低原位细菌生长引起的裂隙岩有效渗透率的影响。不断注入溶质以提供食物以生长原位细菌。我们使用arnpower规律进行裂缝长度分布和fBm裂缝缝隙空间分布。结果表明，弯杆菌的生长会双曲线地降低通透性，但骨干骨折的孔隙率并没有明显改变。它表明，对于较小的长度指数值和较大的赫斯特指数值，渗透率的降低进行得更快。裂缝长度分布比孔隙空间分布对渗透率降低的速度影响更大。降低渗透率所需的时间与水力梯度成反比。

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来源
《SPE Asia Pacific improved oil recovery conference (APIORC 01)》|2001年|p.1-8|共8页
会议地点 Kuala Lumpur(MY);Kuala Lumpur(MY)
作者
C. Han; J.M. Kang; J. Choe;
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Seoul National University;

Seoul National University;

Seoul National University;

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原文格式 PDF
正文语种 eng
中图分类采油工程;
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Monte Carlo Simulation on the Effect of Fracture Characteristics on Reduction of Permeability by In-Situ Bacteria Growth

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