论文详情
空气钻井最小流量计算的修正模型
断块油气田
2008年 15卷 第02期
阅读:118
查看详情
Title
Modified model of calculating minimumflow in air drilling
单位
大庆石油学院提高油气采收率教育部重点实验室,黑龙江 大庆 163318
大庆油田有限责任公司钻井工程技术研究院,黑龙江 大庆 163413
辽河油田勘探开发研究院,辽宁 盘锦124010
摘要
文章用气体状态方程以及热力学定律对空气钻井中流动参数进行分析,重点修正了储层流体涌入的空气钻井中最小空气流量计算公式以及钻头喷嘴压力计算公式,为空气钻井实际提供了必要的理论依据。根据修正后的模型编制应用软件,结合现场实践,达到指导现场实际空气钻井的目的,为大庆地区开展空气钻井提供参考。
Abstract
This paper analyzes the flow parameters in air drilling based on the air state equation and first law of thermodynamics and
discusses the stress questions such as air flow rate when reservoir fluid inrush and bit nozzle pressure. A calculation formula is
proposed, which provides the necessary theory foundation for air drilling. This application software is compiled based on the modofied
model. It is important for us to guide the air drilling at wellsite. It can also offer some references for air drilling in Daqing Area.
关键词:
空气钻井;
空气流量;
井底压力;
修正模型;
喷嘴压力;
Keywords:
air drilling, air flow rate, bottom-hole pressure, modified model, nozzle pressure.;