影响人造岩心膨胀率因素的探讨  

Research of the influence on artificial core dilatability factor

作　　者：刘阿妮[1] 徐同台[2] 杨振杰[1] 回海军 郭中文[3] 

机构地区：[1]西安石油大学,陕西西安710065 [2]中国石油天然气总公司老干部局,北京100724 [3]北京石大胡杨石油科技有限公司,北京100000

出　　处：《石油化工应用》2010年第2期40-42,共3页Petrochemical Industry Application

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.

关 键 词：粘土矿物 温度 压力 液体类型 膨胀率 

分 类 号：TE21[石油与天然气工程—油气井工程]