摘要
文章在考虑钻井液滤液与页岩之间可能进行的各种物理化学反应的基础上 ,综合各种运移驱动力对滤液各组分运移的影响 ,对页岩中的传递 (如水力流动、离子和压力扩散 )与控制页岩稳定性的化学变化 (如离子交换、含水量的变化 )两者之间的复杂关系进行了定量描述 ,建立了模拟钻井液进入页岩地层及与之发生各种物理化学反应的动态模型。此模型主要回答了页岩孔隙压力、离子含量、含水量随时间的变化问题。
On the basis of considering various physicochemical reactions of drilling filtrate on shale and through synthesizing the influence of various driving forces on the migration of different constituents in the filtrate,a quantitative description of the compliated relation between various energy transports (as hydraulic flowing,ionic diffusion and pressure transmission) in shale and different chemical changes (as ion exchange and water content change) controlling the stability of shale was carried out and a dynamic model was set up to simulate the process of drilling fluid's entering into shaly formation and various physicochemical reactions occurring between them.in other words,the changes of shale pore pressure,ion content and water content with time can be simulated by the model.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2003年第4期51-53,共3页
Natural Gas Industry
基金
中国石油天然气总公司重点机理研究项目 (泥页岩井壁稳定强化机理研究 )成果。
