摘要
地层中粘土矿物的膨胀给钻井工程带来了诸多困难,在地层的温度、压力和有外来流体的环境下,粘土矿物的膨胀给施工带来的困难是无法忽略的。模拟地层环境,研究不同温度、压力和进入地层流体类型对粘土矿物膨胀率的影响规律。实验结果表明:粘土矿物在温度和压力增加的情况下膨胀率会增大;当与粘土矿物接触的流体矿化度升高时,粘土矿物的膨胀率减小,反之,则增加。
The inflation of clay minerals in formation brings difficulties for drilling engineering. On the environment of the temperature the pressure of the inflation and external fluid, the expansion of clay minerals brings difficulties for the construction is not negligible. In this paper we simulating inflation environment, researching the influences rule of different temperature, pressure and types of the fluid flowing into the formation for the dilatability of clay minerals. Experimental results show that： the inflation rate of the clay minerals will increase on the condition of increasing of the temperature and pressure,the inflation rate of the clay minerals will decrease when the salinity of fluid which contact with the clay minerals rises, on the contrary, the inflation rate increases.
出处
《石油化工应用》
CAS
2010年第2期40-42,共3页
Petrochemical Industry Application
关键词
粘土矿物
温度
压力
液体类型
膨胀率
clay minerals
temperature
pressure
types of liquid
dilatability
