Modified program speeds North Sea conductor installation

Offshore staff

GREAT YARMOUTH, UK – Acteon subsidiary Conductor Installation Services (CIS) has completed a conductor installation operation ahead of schedule in the southern North Sea for an unnamed operator.

CIS was to install six 30-in. conductors to form the foundations of six development wells, and to supply cold-cutting services and all conductor-running, handling equipment along with drive shoes.

The five-member crew worked with rig contractor Ensco and the operator on the first phase of the operation from the jackup Ensco 80. They applied a 90-kJ hydraulic hammer to drive the first conductor to its target depth on the wellhead platform.

Due to cold cutting placement issues, the team decided to flame-cut the conductor online and to perform the cold cut and installation of the centralizers offline. This way they saved 3.5 hours of online time during the initial conductor-driving operation. They then applied the same practice for all installation operations for the five remaining wells.

As a result, CIS claims, the job was completed 17 hours ahead of schedule, lowering the operator’s costs in terms of reduced equipment rental fees, rig time, and labor. 

The longest conductor driven measured 400 ft (122 m) from the rig floor to the conductor toe, and ultimately reached a depth of 157 ft (48 m) below the mudline of the seafloor.


Did You Like this Article? Get All the Energy Industry News Delivered to Your Inbox

Subscribe to an email newsletter today at no cost and receive the latest news and information.

 Subscribe Now


The Time is Right for Optimum Reliability: Capital-Intensive Industries and Asset Performance Management

Imagine a plant that is no longer at risk of a random shutdown. Imagine not worrying about losing...

Going Digital: The New Normal in Oil & Gas

In this whitepaper you will learn how Keystone Engineering, ONGC, and Saipem are using software t...

Maximizing Operational Excellence

In a recent survey conducted by PennEnergy Research, 70% of surveyed energy industry professional...

Leveraging the Power of Information in the Energy Industry

Information Governance is about more than compliance. It’s about using your information to drive ...