无隔水管钻井液举升泵速度调节数学模型  

Mathematic Model of Mudlift Pump Speed Control in Riserless Drilling

作　　者：周昌静[1,2] 陈国明[2] 谭海东[3] 

机构地区：[1]中国石油大学(华东)化学工程学院 [2]中国石油大学(华东)海洋油气装备与安全技术研究中心 [3]长春工业大学机电工程学院

出　　处：《石油机械》2013年第8期40-42,共3页China Petroleum Machinery

基　　金：国家科技重大专项"深水油气田开发钻完井工程配套技术"(2008ZX05026-001-12)

摘　　要：为增强无隔水管钻井井口压力控制效果,通过试验验证了叶片圆盘泵在一定转速范围内满足比例定律,在此基础上对叶片圆盘泵不同转速下的扬程与流量特性进行分析,建立叶片圆盘泵速度调节的数学模型。通过试验数据确定模型有关参数,将模型计算的转速与试验转速进行对比。对比结果表明,模型计算的转速与试验转速很接近,这表明该速度调节数学模型用于无隔水管钻井叶片圆盘泵速度调节具有较高的精度。To strengthen the wellhead pressure control effect in riserless drilling, the lift and flowrate character- istic of blade disc pump at different rotation speeds were analyzed on the basis of verifying that the pump satisfies the proportionality law within the scope of a certain rotation speed through the test. The mathematic model of the pump speed control was established. The test data was used to determine the relevant parameters of the model. The rotation speed calculated by the model was compared with that of the test. The result shows that the two values are very close. This indicates that this mathematic model for speed control can achieve a relatively high precision in ad- justing the pump speed in riserless drilling.

关 键 词：无隔水管钻井 钻井液 叶片圆盘泵 流量 扬程 速度调节 数学模型 

分 类 号：TE951[石油与天然气工程—石油机械设备]