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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2006  >  28(2): 152-154
Zhu Huayin, Li Jian, Li Yongjun. INFLUENTIAL FACTORS IN NATURAL GAS MIGRATION AND ACCUMULATION[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2006, 28(2): 152-154. doi: 10.11781/sysydz200602152
Citation: Zhu Huayin, Li Jian, Li Yongjun. INFLUENTIAL FACTORS IN NATURAL GAS MIGRATION AND ACCUMULATION[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2006, 28(2): 152-154. doi: 10.11781/sysydz200602152
shu

INFLUENTIAL FACTORS IN NATURAL GAS MIGRATION AND ACCUMULATION

doi: 10.11781/sysydz200602152
  • 1.

    Southwest Petroleum University, Chengdu, Sichuan 610500, China

  • 2. Langfang Branch, Research Institute of Petroleum Exploration and Development, CNPC, Langfang, Hebei 065007, China

  • 3. No. 1 Production Plant, Xinjiang Oil Field Company, CNPC, Karamay, Xinjiang 834000, China

  • Received Date: 2005-11-11
  • Rev Recd Date: 2006-02-20
  • Publish Date: 2006-03-28
    Abstract
  • The factors influencing gas migration are studied by simulating natural gas migration in natural core,using long-core experimental installation.Natural gas migration is related to the physical characteristics of rock and the pressure of gas source.Gas migrates first into large pores of migration formations after overcoming the influence of capillary pressure.If migration formations have good physical properties and much larger pores,much more gas will be accumulated,otherwise it will migrate far away.It does not depend on time because the rate of gas movement is fast.When the pressure of gas resource is large enough to overcome capillary pressure,gas can migrate forward transiently.The differences between migrating upwards and downwards are great because of the buoyancy force.It is easy and high efficient to migrate upwards. The distance of gas migration upwards is three times of that of downwards in the same conditions.

     

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