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< Natural Gas and Oil > Editorial Department
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China Petroleum Engineering & Construction Corporation
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Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
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Issue:ISSN 1006-5539
          CN 51-1183/TE

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    Your Position ：Home->Past Journals Catalog->2011 Vol.5

    Damage of Fluid Intrusion and Water Lock Effect on Gas Well Production
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    Key Words：Danniudi Gas Field；Gas well；Fluid intrusion；Water lock effect
    Abstract：At present，most of natural gas wells in China will separate out condensate water or generate formation water in production process and their output is less than the critical carrying fluid flow，which results in different degrees of gas well bottom effusion. With continues gas field development，formation pressure drops gradually，fluid intrusion and water lock effect are particularly prominent in gas well shutdown process. Taking Daniudi Gas Field for example，analyzed is the changing regularity of wellbore pressures and well bottom gas flow in gas well shutdown process，described are causes resulting in fluid intrusion and water lock effect and damage of fluid intrusion and water lock effect on the formation and put forward are relative preventive measures，which is of importance to improve effects of low permeability gas reservoir development.
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