You will not be able to bring any lighters, matches, and inflammable items on board. The same goes for alcohol, illegal drugs and weapons. Your bags will be checked once you arrive and these will be confiscated.
You may be addicted to your Ipad or playing games on your laptop but it is best to leave these ‘toys’ at home. Bags and belongings do not get the best treatment on board the rig and can easily get damaged during transportation on and off the vessel. If you need to use the computer periodically, most rigs have recreational systems in the lounge and rig workers are free to use them as necessary.