You Do Need power plug adapter while traveling from Nigeria to Abu Dhabi.

Here is Why You Need An Adapter

The outlet and plug type used in Abu Dhabi is G and in Nigeria are D and G. This is how they look like.

Nigeria

In Nigeria, outlets of type D and G are in use.

Type D

Type G

Abu Dhabi

In Abu Dhabi, outlets of type G are in use.

Type G