Cal Dive Announces New Intervention Riser System

Cal Dive International's subsidiary, Well Ops Inc., has announced delivery of a dedicated 10,000 psi 7 3/8" through-bore intervention riser system for subsea well operations to be conducted from Cal Dive's flagship semi-submersible DP MSV, the Q4000.

The intervention riser system, built and tested by Worldwide Oilfield Machines (WOM), is the largest of its kind operating in the Gulf of Mexico. It currently enables access to both conventional vertical and horizontal subsea trees in up to 5,000' water depth, with the capability of the system being extended to 10,000'. Terms of the purchase provide for payment in 2004.

CDI invested in the system to combine rapid response with maximum operational flexibility focused on the specific intervention needs of high rate producing deepwater subsea assets. All required through-tubing subsea well operations can be safely serviced with this system, with multi- disciplinary operations being conducted in a single mobilization including: wireline intervention, production logging, coiled tubing operations, well stimulation, full plug and abandonment operations, along with construction, inspection repair and maintenance.

The addition of this intervention riser system allows the Q4000 to respond quickly for subsea well intervention as an alternative to a drilling rig, and deal with issues such as loss of production or other emergency intervention needs, using standard tooling and procedures.