Videos

Learn more about BiSN technology by watching in depth videos describing how Wel-lok™ technology works.

An Introduction to Wel-lok™ Technology

Performance Barrier Technologies - BiSN
May 16 2023

Performance Barrier Technologies

Performance Barrier Technologies from BiSN utilize new sealing alloys — enabling precise placement of a high endurance gas-tight seal.
August 30 2022

Wel-lok™ technology in action

Watch a quick demonstration [under 1 minute] of the real Wel-lok™ technology in action and see how a BiSN chemical reaction heater deployed downhole can melt custom BiSN bismuth based alloys, before being retrieved, demonstrating the unique properties of the Wel-lok™ expansion under cooling to f...
October 27 2022

BiSN Wel-lok™ Alloy

Flows like water, V0 gas tight seals in minutes. With a carefully cultivated mixture of alloys, we create a fast and precise sealing method that’s non-corrosive, better for the environment, and expands on solidification, creating a gas-tight seal.
Controlled Thermite - BiSN
May 16 2023

The heart of the heater – controlled thermite

BiSN’s thermite heaters blend precision with speed for well technology that seals in minutes and is ready to test within hours. By setting off a thermite chemical reaction on electric line, the unique bismuth-based alloy melts and flows into even the smallest of micro-annuli.

Project Atlas - The World's Largest Bismuth Plug

Project Atlas - Deployment
May 16 2023

Project Atlas - Deployment

To deploy the tool and stop gas migration in the well, BiSN worked with the operator to coordinate a liftboat and remote operated vehicles. This required overcoming several logistical challenges to ensure a smooth deployment.
Project Atlas - World's Largest Bismuth Plug by BiSN
May 16 2023

Project Atlas - Manufacturing

BiSN designs and manufactures each tool it produces, from the chemical reaction heater to the bismuth alloy used in Wel-lok™ technology. See how it was done for the world's largest bismuth plug.
Project Atlas - BiSN
May 16 2023

The World's Largest Bismuth Plug - Project Atlas

An operator in the Gulf of Mexico had a previously abandoned subsea well that was facing abandonment challenges. A permanent, gas-tight seal was needed inside 36” conductor pipe that could be deployed rigless with a quick turnaround. BiSN was contacted to provide a solution that would protect the ...

Client Testimonials and Projects

Catching up with Aker BP
May 16 2023

Catching up with Aker BP

Aker BP, a major global operator, needed to safely plug and abandon 30 wells in the Valhall field in the North Sea. BiSN partnered with Aker BP to deploy Wel-lok™ technology to create safe and cost-efficient Wel-lok™ plugs. This not only allowed for a permanent plug and abandonment solution, but...

Wel-lok™ Application Explainers

June 6 2022

Wel-lok™ Water Shut Off (WSO)

BiSN’s Wel-lok™ WSO in wells tool is the next step in well solutions technology. Patented and proven in the field, this revolutionary tool reduces unwanted water production from wells that have sand screen and open hole gravel pack completions (OHGP).
Wel-lok™ Thermally Deformable Annular Packer (TDAP)
May 16 2023

Wel-lok™ Thermally Deformable Annular Packer (TDAP)

Installed as part of the original case string, the Wel-lok™ TDAP can be used immediately as a primary barrier to seal the annulus or if your workflow demands it, a secondary insurance policy for the likely future failure of primary cement or resin.
Wel-lok™ Casing Leak Seal (CLS)
May 16 2023

Wel-lok™ Casing Leak Seal (CLS)

BiSN overcome the shortcomings of traditional methods of sealing tubing and casing leaks. Designed with flexibility in mind, the system can be used to isolate a small leak with a single seal or run as a straddle assembly to isolate larger intervals. The through-bore configuration allows for producti...
Wel-lok™ Packer Repair Tool (PRT)
May 16 2023

Wel-lok™ Packer Repair Tool (PRT)

The BiSN Wel-lok™ PRT is designed to quickly repair a leaking production packer by sealing the casing annulus to create a new, enduring seal in the production tubing.
BiSN Wel-lok™ Perf-lok
May 16 2023

Wel-lok™ Perf-lok

Wel-lok™ Perf-lok is a smart alternative to a squeeze. Unlike typical cement squeezes, the Perf-lok system does not require high pressure pumping for placement, as the alloy flows into perforation tunnels under gravity due to its viscosity and density. Perforations are plugged with a V0 gas-tight ...
Wel-lok™ MXD
May 16 2023

Wel-lok™ Maximum Drift (MXD)

BiSN engineers were challenged to further increase the expansion ratio beyond that of the original system without compromising its pressure differential and gas-tight sealing capabilities.

By incorporating a bailer in its configuration, the tool is able to be deployed on a single run al...
Wel-lok™ Sand Control (SCT)
May 16 2023

Wel-lok™ Sand Control Tool (SCT)

The Wel-lok™ SCT seals above the damaged screen and prevents solids from entering without reducing the ID.
Wel-lok™ Tubing Seal (TS)
May 16 2023

Wel-lok™ Tubing Seal (TS)

The Wel-lok™ TS was developed to overcome the shortcomings of traditional methods, using bridge plugs and cement during well abandonment.
June 6 2022

Wel-lok™ Seal Through Casing (STC)

The Wel-lok™ STC has been developed to achieve a gas tight V0 seal well annuli that cannot be achieved by traditional cement balance plugs.
June 6 2022

Wel-lok™ Cement Repair Tool (CRT)

Our Wel-lok™ CRT eliminates casing pressure and vent flow in cemented annuli. While traditional methods of perf and squeeze require surface pumping pressure, our CRT solutions are designed to run rigless on electric line to eliminate gas migration in minutes.
June 6 2022

Wel-lok™ Packer Repair Tool (PRT)

The BiSN Wel-lok™ PRT is designed to quickly repair a leaking production packer by sealing the casing annulus to create a new, enduring seal in the production tubing.

Other BiSN Videos

BiSN Testing Capabilities
May 16 2023BiSN has a large capacity to test different Wel-lok™ technologies on site in Houston for super major operators.
BiSN employee making bismuth based shot for a downhole application.
January 31 2023

Houston Tasting Capability

Explore BiSN's Houston facility and learn how BiSN is developing new technology to help operators solve complex downhole solutions using Wel-lok™ technology.

Get in touch to find a permanent solution for your well

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