DoglegSeverity

LeopoldoSerpa

Hi all, could someone help me with the calculation of Dogleg Severity (DLS)?

I have tried different methods (Radius of Curvature and Tangential) but I can't seem to reproduce the DLS calculation shown in Leapfrog.

If someone could walk me through an example using the values from the table, I would really appreciate it.

Thanks in advance!

EdwardCharlesHakanso

Hi,

I am not clear why but the calculation on the left seems to be incorrect. I get a DLS of 1.8 for 30 unit lengths with the numbers on the left. The one on the right checks out with a DLS of 6 for 100 units. A quick check is to take 30/100*6 = 1.8.

LeopoldoSerpa

Thanks @EdwardCharlesHakanso !

In https://help.seequent.com/Geo/2026.1/en-GB/Content/drilling/import-drilling.htm the left table should be correct.

In Leapfrog, the calculations in the attached tables are correct.

Thanks for letting me know that the convention for using Radius of Curvature Method is (90-dip). I was using the dip directly in the formula, which is why my results didn´t match.