摘要
提出一种求解深直井岩屑运移问题半隐式差分格式，从理论上严格证明了该格式具有二阶精度、无条件稳定以及三阶数值弥散和无数值耗散等特性，并用实例检验了格式的精度和稳定性，得到了令人满意的效果。该格式可应用于洗井数值模拟。
The paper offers an half-hidden difference scheme with properties of unconditionalstability, twor-order accuracy of time and space,three-order prequency despersion andnon-amplitudc decay, These properties were validated by plenty of theoretial studies.Theaccuracy and stability of the scheme were tested successfully against real exampl es.It can beapplied to numerical simulation of hole-cleaning process.A satisfactory result are obtained.
出处
《石油大学学报（自然科学版）》
CSCD
1995年第3期23-27,共5页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
岩屑运移
差分法
洗井
直井
Cutting:Migration:Calculus of differences
Well cleanout
