Topic:
Specific rules for posting horizontal/upturned boreholes on SeisDV.

Description:
What rules are there, if any, that allow horizontal or upturning boreholes to be
posted in Seis%DV? 

Solution:
1. MD values are essential for posting along the upturned borehole path.

2. When a log is loaded as TVD it will stop posting at the first upturned point.

3. When a log is loaded as MD it will post its entire length.

4. When a marker is input as TVD it will only calculate one time value, 
   at the first occurrence of that time along the deviation path.

5. When a marker is input as Time it will only post once, at the first
   occurrence of that time.

6. When a marker is input as MD it will post at the appropriate position on the
   deviated borehole path. This is the only way to post a marker along the
   upturned portion of the deviation survey.

7. A synthetic trace will stop posting at the first upturned point.

Note: Boreholes without a deviation survey are treated as straight holes, 
      i.e.: MD = TVD.




Last Modified on: 14-SEP-00