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ADNOC Offshore awarded Consolidated Suppliers, along with its partner Interwell, the contract for supply of Barrier Plugs utilizing Interwell’s unique Glass Disc technology.

This technology can be integrated into tubing strings as part of the completion string or installed below an intervention packer. Removal of the glass disc barrier is achieved without the use of explosives. By cycling the well pressure above the plug a predetermined number of cycles, the glass discs are shattered, leaving a smooth bore for production or intervention. No glass fragments remain when production starts.

The VossTech Plug (VT Plug) provides a barrier while running new completion strings. The VT Plug is then used for pressure integrity test of the tubing prior to hydraulic setting of completion packers. The VT plug enables customers to protect lower zones while finishing the upper completion installation. Remote actuation enables complete removal of the barrier without any further intervention. When used along with a barrier intervention packer, such as the LBP, ME or HPHT, the VT plug provides the customer with an intervention barrier that can be remotely opened by pressure cycling. The barrier packer can then be retrieved at a convenient time.

Features And Benefits:

• Intervention-less removal
• ISO 14310 certified (V3 and V0 tested)
• Debris tolerant activation system
• Large bore after opening
• Non Explosive opening operation

•    NS-EN ISO 28781 : 2010(V1)

A successful implementation of Interwell’s Downhole Safety Valve Carrier (IDHSVC) helped ADNOC Offshore solve a well integrity challenge and restore production from a well that was shut in since August 2011, saving rig work over cost of $ 5 Million.

The IDHSVC is a retrofitted Safety Valve system for wells where the existing retrievable valve has failed to perform due to eroded or scaled seal bores. The tool features include:

• Make use of existing No-go profile and lock in place with dogs
• Expanding elements make use of existing hydraulic control line ports
• Valve is mounted underneath IDHSVC
• Run on W/L and retrieved with standard GS pulling tool
• Slips based version under development
• ISO V0 or V1 tested up to 7540 psi at 100C

The following advantages can be achieved by using the IDHSVC:

• Straddles the machined DHSV nipple seal bore utilizing the existing control line port
• Uses a hydrostatic setting tool to apply enough setting force to squeeze the elastomer into deep grooves or pits
• Unique and patented element backup design that moves with the element to ensure a minimal extrusion gap, significantly improving the seal
• Can be customized to fit any nipple profile and DHSV insert
• Easily removable for periodic redressing of DHSV
• Available for high H2S service and can be made using customer specified material

Save rig work over cost of $ 5 Million