BiSN Deploys Largest-ever Bismuth Plug

Laxman Pai
Thursday, October 25, 2018

BiSN, the provider of metal-to-metal downhole sealing solutions, has achieved a world first in conjunction with AkerBP and Altus Intervention, through the successful deployment of the largest-ever bismuth plug.

Following over a year of development, BiSN’s award-winning Wel-lok M2M technology – which can be utilised during well and rigless well abandonment – was deployed via E-line in collaboration with Altus Intervention in AkerBP’s Valhall A-30 well in the Norwegian North Sea.

The Wel-lok M2M technology aims to bring substantial savings to operators by eliminating rig costs and doing the work rigless.

Conducted as a field trial, the tool was set to evaluate the effectiveness of bismuth as a permanent seal for P&A operations in lieu of cement. With 3,500 kg of bismuth alloy, a gas tight surface seal was created inside 18 5/8” casing through a section milled window cut in the 13 3/8” casing, entering previously unchartered territory regarding weight, size and precise setting procedures.

BiSN chief executive officer, Paul Carragher, said: “This project is an important step towards the adoption of bismuth well sealant technology. Wel-lok M2M drastically reduces the rig time needed to complete well abandonments (P&A) through the use of thermite heaters to melt bismuth-based alloys.

“We are fundamentally changing the way downhole sealing is carried out, and through trials like this, we continue to break the mould of traditional methods, changing the way operators look at well abandonment.”

Speaking about the project, Martin Straume, P&A Engineering Manager at AkerBP told us: “AkerBP is proud to be in front of the development of Bismuth as a barrier element with respect to Plug and Abandonment. In addition, this installation is proving that there is great savings potential in performing rigless P&A.”

Cathrine Bjaarstad, President Norway & Denmark, Altus Intervention said: “This project clearly demonstrates Altus Intervention’s ability to deliver innovative solutions and assist operators in resolving downhole challenges, adding value to their operations whilst creating both cost and time-savings”.

Categories: Technology Drilling Europe Rigs

Related Stories

CNOOC Makes Major Oil and Gas Discovery in South China Sea

Op-Ed: Kazakhstan’s National O&G Firm Positioning Itself as Global Energy Player

Keel Laying for Wind Flyer Trimaran Crew Boat

Eco Wave Finds Partner for Wave Energy Project in India

EnQuest to Acquire Harbour Energy's Vietnamese Assets

US Operator Finds Oil Offshore Vietnam

ADES’ Fourth Suspended Jack-Up Rig Gets Work Offshore Thailand

Subsea Redesign Underway for Floating Offshore Wind

Transocean’s Drillship to Stay in India Under New $111M Deal

Sunda Energy Closing in on Jack-Up Deal for Chuditch-2 Appraisal Well

Current News

Fire at Petronas Gas Pipeline in Malaysia Sends 63 to Hospital

Japan’s ENEOS Xplora, PVEP Ink Deal for Vietnam Offshore Block

CNOOC Makes Major Oil and Gas Discovery in South China Sea

Valeura’s Assets in Gulf of Thailand Remain Operational After Earthquake

Op-Ed: Kazakhstan’s National O&G Firm Positioning Itself as Global Energy Player

Woodside to Shed Some Trinidad and Tobago Assets for $206M

CNOOC Sees 11% Profit Growth in 2024 Driven by Record Oil Production

‘Ultra-Mega’ Offshore Deal for L&T at QatarEnergy LNG’s North Field Gas Scheme

Keel Laying for Wind Flyer Trimaran Crew Boat

MODEC Gets Shell’s Gato do Mato FPSO Ops and Maintenance Job

Subscribe for AOG Digital E‑News

AOG Digital E-News is the subsea industry's largest circulation and most authoritative ENews Service, delivered to your Email three times per week

https://accounts.newwavemedia.com