气井试井产能分析新方法与新模型应用
Application of New Method and New Model of Gas Well Test Capacity
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- 引用格式:
-
田婉玲,齐二坡,吴茂富,高宏兴,王亚玲,苗润金.气井试井产能分析新方法与新模型应用[J].天然气与石油,2012,30(4):0.doi:
.Application of New Method and New Model of Gas Well Test Capacity[J].Natural Gas and Oil,2012,30(4):0.doi:
- DOI:
- 作者:
- 田婉玲1，2 齐二坡2 吴茂富2 高宏兴2 王亚玲2 苗润金2
- 作者单位:
- 1.西安石油大学石油工程学院，2.长庆油田第一采气厂测试中心
- 关键词:
- 产能；二项式；指数式；压力；试井解释
Capacity； Binomial expression； Exponent； Pressure； Well test interpretation
- 摘要:
- 在实际气井压力恢复测试资料中，一方面使用传统产能分析会出现指数式方程中的指数n大于1，二项式产能方程中B小于0的情况，无法正常计算气井产能；另一方面使用常规试井模型进行储层评价时得不到理想的拟合曲线。因此需对产能分析方法进行改进，同时应用新的试井模型来进行试井解释，以获取合理的单井产能和准确的储层参数。针对某井利用叠加修正法和引进压力平方校正因子Cj这两种方法，从理论分析到实际应用得出，对于传统产能计算方法不能处理的资料，这两种方法都具有很好的处理能力，计算结果精度更高。同时对于某井在试井解释过程中所出现的问题，采用新型模型进行解释，最终获得了合理的结果。
In well test process， gas well productivity can not be calculated normally when a traditional productivity analysis method is used. On the other hand， ideal fitting curve can not be obtained when a conventional well test model is used for reservoir evaluation. Therefore， productivity analysis method needs to be improved and new well test model shall be applied for well test result interpretation so as to obtain reasonable single well productivity and accurate reservoir parameters. Applied is superposition correction method and introduced is pressure square calibration factor Cj to demonstrate the information of certain well， which can not be treated by traditional productivity calculation methods， the two methods have very good treatment ability and their calculation results have higher accuracy. For questions occurring in well test result interpretation of certain well， applied is the new well test model for interpretation and obtained are reasonable interpretation results finally.
