Data preparation: An existing SKUA model and interval velocity volume that was built prior to performing prestack depth migration and well markers. How to calculate well marker mismatch maps in SKUA-GOCAD that will be used for mis-tie pencil creation and GeoDepth tomography. Especially in cases where there are well locations on the reverse fault and multiple markers exist.

一、Calculate Mis-tie in SKUA:

1. Assign Markers to Geologic Feature

Note:  When there are multiple markers in the same geological layer, the marker name can be different, but it must be assigned to the same geological layer.

2. Check Mis-tie

3. Calculate Mis-tie map 

Note: The influence radius must be given sufficiently large to avoid local false constructions, and attention should be paid to the positive and negative values of mis tie, that is, the "computed signed values" option should be checked

4. Check Mis-tie map in SKUA 

二、Output Pencil from SKUA and complete Time-Preserving Tomography :

 6. QC result in section 

Summary: This is a complete practical process for calculating mis tie in SKUA and completing TPT and quality control in the presence of multi value markers for reverse faults.