测井技术2017，Vol.41Issue(4)：394-399,6.
ECOS过套管电阻率测井响应自适应hp有限元数值模拟
Calculations of Logging Responses for Through-casing Resistivity Tool ECOS by a One-dimensional Adaptive-hp Finite Element Method
摘要
Abstract
A one-dimensional adaptive-hp finite element method is used to solve the modified transmission equation for the ECOS through-casing resistivity.This method iterates from an initial coarse grid to seek a new quasi-optimal hp-refined mesh, by appropriately h refinements and p refinement of current coarse grid.The adaptive-hp strategy of this method is guided by the projection-based interpolation of reference solution over the finer grid of the current coarse grid.This strategy is problem independent and is very efficient.The favorable advantage of this method is that it can incorporate the medium with continuous variations, and we use it to evaluate the responses of through-casing resistivity in the environment where the metal casing conductivity, cement sheaths resistivity and surrounding rock resistivity vary discontinuously or continuously and to analyze corresponding effects.Numerical results illustrate that the adaptive-hp finite element method can achieve more highly-accurate simulation with the less number of degree of freedom.关键词
过套管电阻率/生产测井/测井响应/自适应hp有限元/数值计算Key words
through casing resistivity/production logging/logging response/adaptive hp finite element/numerical simulation分类
天文与地球科学引用本文复制引用
张盼,王正楷,邓少贵..ECOS过套管电阻率测井响应自适应hp有限元数值模拟[J].测井技术,2017,41(4):394-399,6.基金项目
国家自然科学基金(41574118 （）
41174099) （）
中石油科技创新基金(2015D-5006-0303) （2015D-5006-0303）
