BiSN Warrington, UK

Research & Development

BiSN is committed to researching and developing cutting edge new technologies to continuously create new solutions for operators. All of our technology is developed in-house and extensively modeled then tested in exact operator well conditions before being made commercially available to our partners in the field.

Heater Preparation

BiSN chemical reaction heater exterior components are manufactured in-house. A crucial piece of wel-lok™ technology, we take great care to make sure they are manufactured exactly to the specifications required to deliver the correct energy output and duration.

This requires extensive surface preparation and precise component assembly.

Internal and external certification is performed at this stage for assurance and quality control.

Thermite Manufacturing

Thermite is the heart of our heaters. Uncontrolled thermite however, doesn’t follow the energy output required for successful wel-lok™ operations, so requires an extensive, patented process to create BiSN’s range of controlled thermite mixtures suitable for use in any downhole conditions.

Designed to produce a prescribed temperature and burn duration, when paired with its partner BiSN bismuth-based alloy, the thermite delivers a highly controlled melt for unrivalled gas-tight plug placement.

Alloy Manufacturing

All alloys utilised by BiSN are manufactured in-house for both casted and beads based applications. With the capacity to produce large quantities of alloy suitable for a wide variety of downhole conditions with unique temperature profiles, BiSN alloy is the second core component of the wel-lok™ technology. Bismuth-based alloy flows like water when melted allowing it flow into the smallest micro-annuli and it expands on cooling to create a permanent V0 gas tight seal. It is also not affected by H₂S or CO₂ and is naturally not corrosive.

This department also houses an alloy demonstration area where customers can observe micro annuli, bonding, fluid interaction, viscosity and other dynamic practical tests.

Quality Control

Quality Control is an integral part of BiSN, from engineering and design right down to manufacturing and assembly. Throughout the process various checks are in place to make sure that the tool that will be shipped for deployment is of the highest quality.

Some examples of checks are:

• Peer checks during the design phase on measurements and calculations
• Spot thermite testing for formula accuracy
• Alloy testing during manufacturing and casting
• Coat consistency and formula testing
• Third party weld inspections