摘要
研究了温度和压力对钻井液当量静态密度（ESD）的影响，建立了高温高压条件下钻井液当量循环密度（ECD）模型，利用南海莺琼盆地某井的数据进行了钻井液循环模拟计算，结果显示：（1）井底压力随着地温梯度的升高而降低，（2）钻井液入口温度对于井底压力的影响较小，（3）井底压力随着钻井液循环速度的增大而升高。
Influence of temperature and pressure on the equivalent static density （ESD） of drilling fluid is researched and a model of equivalent circulating density （ECD） of drilling fluid is established under high temperature and high pressure conditions. Collected data of a well in Yingqiong Basin of South China Sea is used to conduct a simulation of drilling fluid circulation. The results are as follows： （1） Bottom hole pressure decreases with increase of geothermal gradient. （2） Inlet temperature of drilling fluid slightly affects bottom hole pressure. （3） Bottom hole pressure increases with increase of circulation speed of drilling fluid.
出处
《中国造船》
EI
CSCD
北大核心
2013年第A02期292-296,共5页
Shipbuilding of China
关键词
高温高压
钻井液
当量循环密度
模拟计算
high temperature and high pressure
drilling fluid
equivalent circulating density
simulate computation
