相关分析构造图误差校正方法应用及效果

构造图误差校正是构造成图过程中一项基本工作,常规的构造图误差校正存在井点之间校正量缺少地质依据的问题,可能会引起构造假象。在分析Oued Mya盆地速度变化特征和变化原因基础上，针对该区复杂的地下构造特征，提出了相关分析构造图误差校正方法，即利用引起研究区速度变化的主要地质因素与构造图误差之间的相关关系，进行构造图的误差校正。该方法在Oued Mya盆地研究区的构造成图中取得了较好的应用效果。通过对该区构造成图和钻探效果分析得出，相关分析构造图误差校正法是缺少详细速度场资料地区的一种简捷而有效的构造成图方法。

Error correction of structural map via correlation analysis and its application

Error correction is a basic process during structural mapping.In conventional error correction,structural artifacts may arise from the lack of geologic ground for the measurement update between wells.Based on a study of velocity variation characters and factors causing the variations of velocity,the author proposed to correct the errors of structural map via correlation analysis.The method firstly establishes the correlations between the geologic factors causing velocity variations and errors of structural map,and then uses the correlation to correct the errors.Desired results have been achieved by applying the proposed method to the structural mapping in Oued Mya Basin.The effectiveness of the proposed method has been confirmed by drilling.The method provides an effective way for structural mapping at areas lack of detailed velocity data.