稠油油藏蒸汽吞吐水平井生产动态分析

发布时间：2018-05-11 18:51

本文选题：蒸汽吞吐 + 水平井　；参考：《断块油气田》2017年01期

【摘要】：文中以稠油油藏为研究对象,针对水平井蒸汽吞吐产能计算问题,利用保角变换方法,得到蒸汽运移位置计算公式。再结合拟稳态产能公式及耦合流动矩阵,建立了完整的蒸汽吞吐水平井产能及生产动态参数分析模型,并结合累计产水量曲线对不同生产制度下蒸汽热利用率进行了分析。结果表明:定油量生产条件下,稳产期内井底流压先缓慢下降,后迅速下降;定油量较小时,生产时间延长,随着定油量增加,产能曲线趋近于定压产能曲线,稳产期缩短;生产制度不同,热利用率不同,定油量越大,周期产油量越高。该模型对现场蒸汽吞吐操作、合理选择生产制度、分析生产动态具有指导意义。
[Abstract]:In this paper, the calculation formula of steam migration position is obtained by using conformal transformation method, aiming at the calculation of steam huff and puff productivity in horizontal wells, taking heavy oil reservoir as the research object. Combined with quasi-steady productivity formula and coupled flow matrix, a complete analysis model of productivity and production performance parameters of horizontal well for steam huff and puff is established, and the steam heat utilization ratio under different production systems is analyzed in combination with cumulative water production curve. The results show that under the condition of constant oil production, the bottom hole flow pressure decreases slowly at first and then decreases rapidly during the stable production period, the production time is prolonged when the fixed oil quantity is small, and the productivity curve approaches to the constant pressure productivity curve with the increase of the fixed oil quantity, and the stable production period is shortened. Different production system, different thermal utilization ratio, the greater the fixed oil quantity, the higher the cycle oil production. The model is of guiding significance for steam huff and puff operation, reasonable selection of production system and analysis of production dynamics.
【作者单位】：中国石油大学(北京)石油工程学院;
【基金】：国家科技重大专项专题“西非深水油田注采参数优化及单井产能预测研究”(2011ZX05030-005-004) 中国海洋石油总公司海洋石油高效开发国家重点实验室第3批开放基金课题“稠油热采流动规律主要影响因素分析”(2015-YXKJ-001)
【分类号】：TE345

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