Manually Create T-D Pairs
Missing a checkshot survey, and only have some known T-D pairs? Use this process to manually create a time-depth survey.
Manually enter 2 time-depth pairs to create the initial survey.
Create/resample time-depth
![Create/resample time-depth](https://media.screensteps.com/image_assets/assets/003/412/798/original/38d9c64e-f607-411c-b156-3c78ef34dd01.png)
- From the Tool menu in the Control Panel, open the Synthetics view.
- Select the Current Well.
- Right click on the T/D Pair Track and select Create/Resample Time-Depth Survey.
![](https://media.screensteps.com/image_assets/assets/000/657/981/original/1626f403-fb95-4caf-86f4-0f2615f258fb.png)
- At Mode, select Manual.
- Manually input the Initial T-D Pair and T-D Pair 2 (preferably deepest).
- Click OK. The checkshot will appear in TVDSS-TWT track.
- Add more manual checkshots by right clicking and selecting Add Manual Checkshot.
![](https://media.screensteps.com/image_assets/assets/000/657/980/original/9def16ca-a5fb-4934-a81c-d3549aa5e307.png)