
Team
Our Team
Since the company was formed in 2010, BiSN has attracted interest from high-level managers and directors. Today the management team has over 150 years combined experience from across the industry and around the world.
Find out more about these individuals, their professional credentials and what drives them and BiSN forward.

Paul Carragher
CEO

I am excited about our innovation and see there being an infinite number of modified applications for the use of our Wel-lok M2M™ core technology. To have this level of interest at such an early stage in the products life is very encouraging and goes to show that the market is ready to embrace new technology.
Paul Carragher
CEO
- 25 years in strategic management especially in fast growing small companies
- Experience in venture capital, property and engineering sectors
- HND in Business Studies from University of Northumbria, Newcastle Upon Tyne
- Association of Chartered Accountants
Role with BiSN
As CEO, Paul continues to be the driving force behind the business. He inspires his board and colleagues to apply their innovative Wel-lok M2M™ sealing solution to an expanding number of sealing and plugging issues within oil and gas downhole engineering.
Career History
Paul has worked in a variety of businesses across the globe and a wide range of industry sectors. He has the skills and expertise to lead BiSN to success. He has broken new ground within the oil and gas sector, establishing new products for use in the field and continuing to gain interest in BiSN from large oil companies worldwide.

Billy Clark
Research and Development Manager

Every day I am excited to come to work because of the great team I work with and the challenging problems we solve. Plus they let me play with massive amounts of thermite all day every day!
Billy Clark
Research and Development Manager
Billy’s academic background, particularly his work characterising the mechanical, rheological and reaction properties of thermite compositions is invaluable to BiSN. Starting as a Thermite Engineer, Billy performs a critical function as Thermite Manager.
Key credentials:
- Doctor of Philosophy in Mechanical Engineering from Texas Tech University
- Master of Science in Mechanical Engineering from Texas Tech University
- Published in numerous industry publications
Role with BiSN
Billy is responsible for leading on all aspects of thermite management; from analysing current product limitations and developing solutions to creating and enforcing procedures for thermite qualification, manufacturing and loading.
Career History
Billy began his career in academia, working in research for Texas Tech University for nearly 10 years. Joining BiSN in 2016, Billy quickly become a key member of the team, utilising both his extensive laboratory experience and expertise in thermite composition.

Jim Spurr
Field Service Manager – UK

The most exciting part of my job is the ability to travel and executing our field operations. It’s great to liaise with the clients, offer technical support and discuss our operations. I also like to hear of the positive results first-hand, whether it be a pressure test after setting a plug downhole, or a significant reduction in water cut following the successful deployment of our bespoke WSO technology.
Jim Spurr
Field Service Manager – UK
Jim is a field engineer with offshore experience in wireline operations and working independently at international locations. Jim’s role involves job planning, troubleshooting and successful completing engineering tasks and deployments of BiSN’s tools. With a positive can-do attitude and the highest degree of safety, quality and compliance Jim as an asset to the BiSN management team.
Key credentials:
- Production and offshore operation of BiSN M2M Sealing solutions
- GE Sondex DECT Cutter Field Engineer in oilfield well interventions
- Sondex Well Integrity & Production Logging trained on cased hole, DECT & Memlog
- Gun Mechanic aboard seismic survey vessels during oil & gas exploration
- Training and familiarisation team leader, facilitator and mentor for large engineering tasks
Role with BiSN
As the Field Manager, Jim is responsible for leading and managing the team of UK based field personnel on operations in Eastern Hemisphere, coordinating with engineering team and ensuring that the service delivery exceeds clients’ requirements.
Career History
A skilled, highly trained and adaptable, ex-Royal Air Force, Jim has gained his extensive experience by working with Baker Hughes, Schlumberger, Dolphin Geophysical and Pall Aeropower. Jim’s proven track record allows him to deliver outstanding results compliant with the highest levels of safety and quality.

Cory Dennis
Integrations Manager

Dynamic and reliable, with 15 years in the oil and gas industry and 12 in commercial construction. I strive to excel on any task given, am self-sufficient and look forward to new challenges. I have a diverse tool box of skills in which I enjoy applying to the tasks and challenges at hand.
Cory Dennis
Integrations Manager
Cory brings a diverse skill set to BiSN. His experience includes everything from transporting hazardous materials to supervising wireline operations of open hole logging tools. Cory is able to react quickly and effectively in many different scenarios which in turn makes him the go-to person for operations.
Key credentials:
- 12 years of experience in operations and equipment support
- Experience in managing oil and gas crews
- Conducting safety and operations meeting
- Responsible for the maintenance and repair of equipment being using both in-house and in the field
Role with BiSN
As the UK Manager, Cory is responsible for scheduling and managing the production of all BiSN tools produced in the UK for global orders.
Career History
Cory has worked with Thru Bit, LLC, Pinnacle Technologies and Schlumberger Oil Field Services. With this experience, Cory is able to effectively and efficiently manage day-to-day operations to help a company be successful.

Denna Tekell
Production and QA Manager

I like to make sure everyone has the tools they need to do their job well – software, actual tools, management support and so on. I am bent towards observing and improving processes so that everything that is accomplished each day is geared towards improving quality and efficiency.
Denna Tekell
Production and QA Manager
Denna strives to create a culture where continual improvement, innovation, and creativity is provided to support all employees in the areas of both professional and person growth. Her expertise lies in learning about a business and how it operates while helping to improve processes with more efficient tools and strategies.
Key credentials:
- 20 years in small business development, including IT development for data extraction, analysis and reporting systems
- Bachelor of Business Administration, Baylor University
Role with BiSN
As the Quality Control Manager, Denna goes above and beyond the quality assurance of products. She works to create an environment where systems and tools are used to facilitate creative and lateral thinking and development.
Career History
Denna has worked within a number of small businesses that required the responsibility of quality assurance and data analytics, including trend tracking and database implementation to support customers and sales teams, as well as providing systems.

Jeff Fulks
Regional Business Development Manager – Americas

My passion at BiSN is to provide solutions to meet our customers’ needs, not just sell them another tool.
Jeff Fulks
Regional Business Development Manager – Americas
As the Well Applications Manager for BiSN, it is important to understand how the innovative products can be applied in the field appropriately. Jeff uses his experience with well completions, well intervention and well abandonment, and important knowledge about what issues engineers face in the field to help ensure the success of the company.
Key credentials:
- 17 years of oilfield experience
- Service companies and operators experience
- Bachelor of Science in Mechanical Engineering, University of Missouri
Role with BiSN
As a recent addition to the BiSN team, Jeff is responsible for the communication between clients and engineering as well as operations staff here at BiSN. He brings his expertise in downhole completions and well abandonment which allows him to understand issues both in product development and those experienced by field engineers.
Career History
Jeff has experience in product design, development, testing and applications. He has an understanding of the industries regulations and securing relevant permits. He has worked as an applications engineer and in project and applications management to further his knowledge.

Jacob Dearmon
Global Field Operations Manager

I openly embrace the challenges and opportunities that come with developing advanced new tools. I truly believe BiSN’s Wel-lok M2M core technology is revolutionizing the down-hole sealing business and I enjoy leading a great team in implementing this technology around the world.
Jacob Dearmon
Global Field Operations Manager
Starting his career in drilling technology, Jacob has more than five years of experience in leading tool developments and testing operations. He has orchestrated the design and testing of BiSN’s innovative downhole intervention tools and is an integral part of the team.
Key credentials:
- Five years of experience in the oil and gas industry
- Bachelors of Science in Petroleum Engineering from Louisiana State University
Role with BiSN
Jacob has responsibility for managing worldwide field operations for BiSN. This ranges from overseeing personnel and logistic resources to ensuring operations in the field are completed safely and to the highest quality.
Career History
Starting his career with Baker Hughes, Jacob brings a range of experience from different roles he then went to with Conoco Phillips and Schlumberger. Since joining BiSN in 2017, Jacob has progressed rapidly from Project Manager to Global Field Operations Manager.