生产数据分析在哈拉哈塘油田储层评价中的应用

发布时间：2018-05-15 16:29

本文选题：哈拉哈塘油田 + 缝洞型油藏　；参考：《钻采工艺》2016年06期

【摘要】：哈拉哈塘奥陶系缝洞型碳酸盐岩油藏埋藏深,油井高含硫、含蜡,井况复杂作业风险较高,给常规动态监测资料录取带来一定影响。同时获取地层参数的压力恢复不稳定试井工艺需要关井测试压力,将极大影响产量。也有部分井测过压力恢复不稳定试井,但由于井筒流体重力分离影响,导致资料质量较差,解释成果不可靠,无法真实反映储层信息。最终导致测试资料缺乏,加大储层评价难度。利用油井生产过程产量压力数据,选择Blasingame曲线图版拟合、Log-Log生产数据分析方法对该油田85口进行评价分析,有效获取地层参数,弥补了评价资料的不足。并进行油井停喷时间及停喷前累产预测,与实际吻合度高。为本区块油井地层参数、井控储量计算及产能预测提供一个较为有效技术手段。
[Abstract]:Carbonate reservoir of Ordovician fracture-cavernous system in Hala Hattang is deeply buried, high sulfur and wax in oil well, and high risk of complex operation in well condition, which has a certain influence on the recording of conventional dynamic monitoring data. At the same time, the pressure recovery instability test process for obtaining formation parameters requires shut-in test pressure, which will greatly affect the production rate. Some wells have been tested unsteadily for pressure recovery, but due to the influence of gravity separation of wellbore fluid, the quality of data is poor, the interpretation results are unreliable, and the reservoir information can not be truly reflected. Finally, the lack of test data increases the difficulty of reservoir evaluation. By using the production pressure data of oil well production process and selecting the Blasingame curve to fit the Log-Log production data analysis method, 85 wells in the oilfield are evaluated and analyzed, and the formation parameters are obtained effectively, which make up for the deficiency of the evaluation data. The prediction of oil well shutdown time and cumulative production before shutdown is in good agreement with the actual situation. It provides a more effective technical means for well formation parameters, well control reserves calculation and productivity prediction in this block.
【作者单位】：中国兵器工业集团振华石油控股有限公司;中国地质大学能源学院;
【基金】：国家科技重大专项“致密油气藏数值模拟新方法与开发设计”(2016ZX05009005)
【分类号】：TE33

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