There are two main challenges you face when you get carried away by the thought of drilling a conductor string: There are no bits big enough, and there are no CRTs that can handle bigger ODs than 26”. We managed to work around these limitations on the Maersk Resolute, operating on South Arne, getting the conductor to TD with a retrievable BHA. This is how we did it.
A blog from Odfjell Well Services
Odfjell Well Services (OWS) is an international well service company, providing world class TRS, rental and well intervention services worldwide.