生产数据分析在哈拉哈塘油田储层评价中的应用  

APPLICATION OF PRODUCTION DATA ANALYSIS IN CARBONATE RESERVOIR EVALUATION AT HALAHATANG OILFIELD

作　　者：汪益宁[1] 李洪[2] 肖伟[1] 吴晗[1] 王晖[1] 

机构地区：[1]中国兵器工业集团振华石油控股有限公司 [2]中国地质大学能源学院

出　　处：《钻采工艺》2016年第6期46-49,共4页Drilling & Production Technology

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)

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。The of Ordovician fracture-vug type carbonate reservoir at Halahatang is featured with deep burial,high H2S content,high wax content,complex well conditions and high operation risk,which affects the routine ilvnamic data monitoring and acquisition to some extent.And the unstable well testing requires well shut-in to obtain formation parameters after pressure buildup process,greatly affecting the production rate of the well.In some wells the quality data acquired by the unstable well testing was poor due to the gravity segregation of wellbore fluids,the interpretation was not reliable,not able to truly reflect the real reservoir conditions,making reservoir evaluation more difficult.Blasingame curve chart and Log-Log production data analysis method were then used to evaluate the reservoirs in 85 wells in the oil field,making up the shortage of insufficient evaluation data.And the time the well stopped flowing and the cumulative production before that time were predicted,which showed a good fil with the actual.It will be an effective method lo calculate the formation parameters,the reserves and the predicted productivity.

关 键 词：哈拉哈塘油田 缝洞型油藏 生产数据分析 储层评价 产能预测 

分 类 号：TE33[石油与天然气工程—油气田开发工程]