SAGD水平井启动阶段汽腔加热边界预测模型

发布时间：2018-04-22 01:34

本文选题：SAGD + 水平井　；参考：《石油钻采工艺》2017年05期

【摘要】：蒸汽辅助重力泄油(SAGD)技术分为启动和生产两个阶段。量化计算SAGD启动阶段水平段的汽腔发育边界是判断转入生产阶段最佳时机的重要依据。根据SAGD启动过程分析、蒸汽加热地层的热传导方程,并通过引入井下温度衰减测试方法,建立了水平段各测温点的加热半径计算模型。该模型可以用来计算水平段沿程蒸汽加热边界,判断汽腔发育形态。以新疆油田某SAGD水平井井底测温数据为基础,将该模型计算结果与监测数据进行对比分析,发现模型定量计算结果与监测数据的定性判断结果一致。研究结果为SAGD转生产阶段时机的判断与汽腔发育均匀性监测提供了新方法。
[Abstract]:The steam assisted gravity discharge (SAGD) technology is divided into two stages of starting and production. Quantifying and calculating the boundary of the steam cavity development in the level of the SAGD starting stage is an important basis for judging the best time to turn into the production stage. According to the analysis of the starting process of the SAGD, the heat conduction equation of the steam heating stratum, and the construction of the downhole temperature attenuation test method, is built. The calculation model of the heating radius of each temperature measurement point in the horizontal section is set up. This model can be used to calculate the development shape of the steam cavity in the horizontal section of the steam heating. Based on the data of the bottom hole temperature measurement in a SAGD horizontal well in Xinjiang oilfield, the calculation results of the model and the monitoring data are compared and analyzed, and the quantitative calculation results and monitoring of the model are found. The result is consistent with the qualitative judgement of the data. The research results provide a new method for judging the timing of the SAGD production stage and monitoring the uniformity of the development of the steam chamber.

【作者单位】：中国石油新疆油田公司工程技术研究院;
【基金】：“十三五”国家科技重大专项“油砂高效开发与提高SAGD效果新技术研究与应用”(编号:2016ZX05031002)
【分类号】：TE243

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