【摘要】 为合理解决测井数据正确评价岩性的特性问题,采用体积模型解释岩性成分,为减少求解过程中的不确定性,需要采用较多的曲线求解较少的岩性成分。结果表明各曲线的响应方程式便组成一个超定方程组,在最小二乘意义下确定一组解。考虑到要求得到最优解,引入权系数的概念,体现各曲线电子误差、精度、可靠程度等差异对计算结果引起的不同影响。该成果对测井数据的地质解释具有一定的参考价值和指导意义。更多还原

【Abstract】 To accurately evaluate lithologies using logging data, a physical volume model is normally used to interpret the rock composition. Mitigating the uncertainty in obtaining a solution needs more curves for interpreting rock composition. Responding equations of each curve form an overdetermined equation system, which is composed of a group of least square solutions. Weighted coefficients are introduced for optimal solutions, which account for the effect on solutions from each curve’s electronic error, accuracy, reliability, etc. The results are useful in geological interpretation of logging data.更多还原