Volume 38 Issue 1
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MA Yongxin, ZHANG Liquan, YANG Zhonghan, XU Fabin, XIANG Xiong, YANG Honglie, LIU Xiliang. Study and Application of the Method for Evaluating Damage to Shallow Unconsolidated Sandstone Gas Formations[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(1): 68-73. doi: 10.3969/j.issn.1001-5620.2021.01.011
Citation: MA Yongxin, ZHANG Liquan, YANG Zhonghan, XU Fabin, XIANG Xiong, YANG Honglie, LIU Xiliang. Study and Application of the Method for Evaluating Damage to Shallow Unconsolidated Sandstone Gas Formations[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(1): 68-73. doi: 10.3969/j.issn.1001-5620.2021.01.011
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Study and Application of the Method for Evaluating Damage to Shallow Unconsolidated Sandstone Gas Formations

doi: 10.3969/j.issn.1001-5620.2021.01.011

  • 1. CNOOC China Ltd. Zhanjiang Branch, Zhanjiang, Guangdong 524057;

  • 2. Division of Oilfield Chemistry, COSL, Zhanjiang, Guangdong 524057

  • Received Date: 2020-09-15
    Available Online: 2021-08-16
    Abstract
  • Columnar cores are generally difficult to be obtained from unconsolidated sandstone formations because of poor formation cementation. Conventional methods for evaluating the damage of unconsolidated sandstone oil and gas reservoirs cannot be used to evaluate the degree of damage to the unconsolidated sandstone oil and gas reservoirs. A method for evaluating the damage to unconsolidated sandstone gas reservoirs has been presented based on the fabric characteristics of cores from unconsolidated sandstone gas reservoirs. Evaluation of the drilling fluids used in gas field A and gas field B in the west of South China Sea showed that the results of the new method coincided with the field well test results, indicating that the new method can be used to simulate field operation with high accuracy.

     

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