Category: Press Releases

Successful abandonment in the Permian Basin

September 29th, 2021 by

After multiple failures with cement squeezes, learn how Chevron eliminated casing pressure and gas bubbles at surface using our bismuth-based alloy Performance Barrier Technology and by simply deploying our Wel-lok™ CRT on wireline. The well was successfully bubble tested, resulting in zero bubbles at surface, allowing the operator to complete the permanent well abandonment. The technique is now being used successfully on an additional two wells. Read the case study

Middle Eastern Expansion

September 22nd, 2021 by

We are delighted to announce the signing of an exclusive agreement with the Middle East’s leading energy service provider – AlMansoori Specialized Engineering – to further expand our deployment activity in this hugely important region.

A partnership that will leverage the vast experience and geographical reach of AlMansoori’s 4,000 employees and operations across 15 countries, to take our offering to the next level.

This agreement will complement our customer global base which includes Shell, bp, ExxonMobil, Aker BP ASA, Chevron and ConocoPhillips.

BiSN signs groundbreaking deal with ADNOC

September 21st, 2021 by

Wel-lok™ contract officially signed with ADNOC Group

We are proud to announce the signing of a contract with ADNOC Group which will result in the first ever deployment in the Middle East that utilises BiSN’s ground-breaking Wel-lok™ technology.

Scheduled to take place in Q4 of this year – this will mark an important deployment in the intervention sector for BiSN. Keep a look out for more updates as the project gets underway.

Decom North Sea 2021 Award

May 24th, 2021 by

We are honored to have received the Decom North Sea 2021 Award for Technical Innovation in Decommissioning.

The Wel-lok M2M technology has been deployed in over 200+ applications throughout the world. In our most recent campaign with Aker BP ASA in the North Sea, our tools were able to provide a rigless and time saving solution through a permanent and environmental barrier to over 30 wells.

Wel-lok technology utilized in the North Sea

May 12th, 2021 by

On the 12 May BiSN was proud to have our Wel-lok technology utilized in the North Sea with Aker BP ASA on their Valhall Field Center campaign. The results speak for themselves by reducing the time and equipment needed to effectively provide a permanent, environmental barrier and top seal for the over 30 wells.

Sustainability is our future

April 26th, 2021 by

Looking at sustainability today versus ten years ago, the focus on the future and what natural resources will remain is vital to most, if not all, organizations. Between the environmental, social and economic pillars of sustainability, BiSN has developed an innovative technology to provide a safe and natural barrier within the energy industry. This barrier is a final seal blocking the emittance of gases, unwanted water, and pressures within downhole applications.

Our most recent campaign in the North Sea was with Aker BP at their Valhall Field. BiSN provided over 30 bismuth alloy plugs to the top section of the wells as the final barrier prior to abandonment. With the largest alloy plug placed within a 30” casing, it earned the title of world record holder for using a tool weighing in at over 30,000 lbs. By the end of the campaign, 24 plugs of this size were deployed, with 6 smaller (24”) plugs, and all tested to show no emittance of gases (or bubbles) over a 14-day trial. The overall sustainability of these tools remains in line with several UN Sustainability Goals: (9) Industry, Innovation, and Infrastructure and (14) Life Below Water.

The campaign with Aker BP has proven that BiSN is an environmental barrier. In addition, the PSA Norway qualified the Wel-lok M2M sealing technology as a barrier for the Seal 2 application in the Valhall wells. With a gas tight, non-permeable seal in place, the conductors could be safely cut and removed with no release of hydrocarbons. Aker BP featured the BiSN technology recently in their 2021 first quarter Sustainability Report. (A copy can be viewed below.)

BiSN’s Wel-lok M2M technology is a metal-to-metal downhole sealing solution developed to provide a permanent seal through a thermite heat ignition and a rapid solidification process of eutectic bismuth alloy. The use of bismuth alloy is advantageous because once it is heated, the metal liquifies and is equal to that of the viscosity of water. The liquid bismuth alloy can then filter through porous locations prior to solidification, as opposed to conventional methods such as cement or resin.

CLICK HERE to download the full article

Decom North Sea Awards Finalist

April 20th, 2021 by

BiSN is pleased to announce that we are a FINALIST!

The Decom North Sea Awards 2021
Technical Innovation in Decommissioning

Join us Friday, 21st May at the awards ceremony.

#bisn #decomnorthsea #semifinalist #innovationleader

BiSN achieves more tool deployments by April 2020 than 2019

April 21st, 2020 by

In April, BiSN completed its 5th deployment of the month, bringing the total number of tool deployments in 2020 to 55, surpassing 2019’s entire annual number of deployments.

In 2019, the company deployed a total of 52 tools on wells globally, working with a number of operators across various regions. To date, in 2020, BiSN has deployed its Wel-lok M2M TDAP, CRT, Perf-Lok and STC tools on projects in Australia, USA and United Kingdom.

Though the industry has seen an inevitable slowing down during these unprecedented times, this record is true testament to BiSN’s unwavering commitment to our customers.


Record year for Field Deployments

January 6th, 2020 by

Over the course of 2019, BiSN continued to grow at a record pace. While continuing to work with many of our existing customers, we also worked with several new clients in 2019 and expanded to some new regions as well. In all, we had the pleasure of working with a dozen new clients in 2019 spread over 4 new geographical regions.

Well abandonment continued to be one of our key areas. The year started with the completion of a multi-well P&A campaign on a remote island in Australia, one that had begun in late 2018. An additional well abandonment was conducted to eliminate Bradenhead pressure in the DJ Basin. Q4 saw the startup of another multi-well P&A campaign in Australia, this one conducted from an offshore platform.

2019 saw its fair share of interventions as well with 5 total deployments of the Wel-lok M2M WSO™ (Water Shut Off) tool. The first 2 runs of the year took place from a LWIV (Light Well Intervention Vessel) in offshore Angola, followed by the first deployment of a WSO tool in the UK North Sea. The final 2 WSO deployments took place from a TLP, also in offshore Angola. In addition to the WSO tools, BiSN also experienced 3 firsts with 1 deployment. The first Wel-lok M2M Perf-lok™ was deployed in Bakersfield, California to isolate a perf tunnel in a steam injection well. Not only was this the first Perf-lok run and the first deployment in California, it was also the first field deployed tool to be milled out after setting.

Over the past few years, BiSN has run many abandonment and intervention tools, but not until 2019 had a completion tool utilizing the Wel-lok M2M technology been deployed. The Wel-lok M2M TDAP™ was first developed in conjunction with one of our partners several years ago but had not been commercially deployed. That changed in early Q2 2019 when an operator ran 10 of them as part of their casing program on a new drill pad. These were followed by 5 more deployments in December by another operator who has made the TDAP a part of his standard casing program going forward.

As you can see it was quite a year for all of us at BiSN. We could not have done this without the support of our customers and dedication to excellence from our amazing staff. But it is time to close the doors on 2019 and welcome in a new year. Thank you to all of you and here is to a safe and happy 2020.

If you would like to learn more about our Wel-lok M2M technology please contact us at or contact Jeff Fulks directly at +1 832 724 0621.


BiSN sees a significant increase in field deployments in Q1

May 28th, 2019 by

BiSN, the global leader in innovative metal-to-metal downhole sealing solutions, is celebrating a successful start to 2019, deploying more than three times as many tools against the same period last year.

Working with new clients, in new locations, BiSN has moved beyond the R&D phase of their Wel-lok M2M technology, deploying tools in Angola, Australia and the North Sea in the first quarter this year. With further deployments scheduled in the US, Africa, the North Sea and Australia in Q2, BiSN is looking forward to a record-breaking year.

These achievements follow an already successful year that saw the company working with new clients globally and deploying the world’s largest bismuth plug in the Norwegian North Sea, before testing an even larger tool in early 2019.

Paul Carragher, CEO said:

“2018 was an incredibly exciting year of growth for BiSN, with multiple award wins, new clients and record-breaking deployments for the company, but in the background, we were working hard to continue building on that success, setting ourselves up for a fantastic 2019.”

“So far this year, alongside developing and deploying innovative downhole application and tools, we’ve conducted more than 30 presentations to potential clients, taken part in global technical conferences and visited clients across 5 continents. We’ve seen a lot of interest in our technology, and we believe it is our commitment to developing the right solutions for our clients that is supporting our global growth.”