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has been cited by the following article:

• TITLE: Productivity Analysis Method of Abnormal High-Pressure Gas Reservoir in Ying-Qiong Basin

  AUTHORS: Qi Zhu, Hao Liang

  KEYWORDS: Ying-Qiong Basin, Abnormal High-Pressure, Gas Reservoir, Stress Sensitivity, Productivity Analysis

  JOURNAL NAME: Natural Resources, Vol.8 No.6, June 13, 2017

  ABSTRACT: Ying-Qiong Basin in the west of South China Sea contains plenty of abnormal high-pressure gas reservoirs, whose stress sensitivity is crucial for well productivity. To explore the influence of stress sensitivity on production, the variable outlet back pressure stress sensitivity experiments were applied to test core sample permeability under different burden pressure and obtain the relational expression of power function of core stress sensitivity. Afterwards, new productivity equation is deduced in consideration of reservoir stress sensitivity, and the affection of stress sensitivity on production is analyzed. The result demonstrates close link between stress sensitivity and productivity, since single well production decreases dramatically when reservoir stress sensitivity has been taken into account. This research is constructive for well-testing data interpretation in stress sensitive gas reservoirs.