In the world of valve assembly, the process of bolt torquing plays a crucial role in ensuring the proper functioning and integrity of valves.

Bolt torquing is a method used to tension bolts to a specific sealing position. It involves applying a calculated amount of torque to the bolts to ensure they are properly tightened and secure. This process is crucial in valve assembly, especially for valves with high class and size, as it helps prevent loss of testing or containment. Bolt torquing can be done using tools such as Hammer Wrench (flogging spanner), Manual Torque Wrench, or high-pressure Hydraulic Air-driven torque wrench, depending on the specific requirements of a project. The goal of bolt torquing is to ensure that the bolts are tightened to the correct torque value to maintain the integrity of the valve assembly.

The relevance of bolt torquing to the clients whose facilities cut across land locations, flow stations and Floating, Production, Storage, and Offloading (FPSO) vessels include but are not limited to:

Firstly, proper bolt torquing ensures the integrity and reliability of the valves onboard their FPSO and their other production locations. This is essential for maintaining the safety of the vessel and its operations, as any leakage or failure in the valves could lead to environmental hazards or production downtime.

Secondly, bolt torquing helps prevent potential leaks in the valves, which could result in the loss of valuable resources such as oil or gas. By ensuring that the bolts are properly tightened and secure, the risk of leaks is minimized, protecting the environment and the owner’s investment.

Additionally, bolt torquing plays a role in the overall maintenance and longevity of the valves on the FPSO. Properly torqued bolts help extend the lifespan of the valves, reducing the need for frequent repairs or replacements. This can result in cost savings for the owner in the long run, as well as increased operational efficiency.

Bell Oil and Gas Valve Manufacturing and Assembly plant recently carried out a project for TotalEnergies for the Testing of Isolation valves. For this project, the number of isolation valves brought for test was 24 out of which 18 of them were high-pressure and higher class.

The process of testing the valves involves installing a raised face gasket for the RF flanges and loading up the exact size and class to the valve and a ring face gasket for the flanges with RTJ class. The flanges were then held in place with the valve flange with a long bolt and locked with a nut of matching size. The bolts and nuts used were of different materials ranging from carbon steel to stainless steel with certification markings. The process of torquing then commenced by sealing the valves with their flange. before high-pressure hoses were attached to the torqued flange to introduce the pressure from the test bench and Gas console. After the testing is complete, the air driven hydraulic torquing wrench will loosen the bolts on firs impact and leave the complete loosing of the bolts for the air driven impact wrench which can tighten and loosen at a maximum force of 3000Nm.

The process of torquing was achieved with the below process using the 14 inches by hub class 12000 as a case study with a nut size of 110mm:

●Clean the valve bolts with a clean dry ran and apply a Paint remover penetrant to remove the paint flakes joining stocked with the nut. i.e. this will aid in quick loosening & tightening.

●Label the nuts according to nuts fasting orientation (14,13, 1,2,15, 16,….).

●Insert the Torque cassette on the nuts and apply pressure until the first turn is achieved. record this value as the break-to-open (BTO) valve for the nuts.

This is also recorded for the final closure of bolts which is the break-to-close (BTC).

●Ensure the Enerpac torquing machine is set to the correct torque value for the specific bolt and nut size(110mm). This can be achieved by checking the strength grade of the bolt (4.8 or 6.8 and pressure of 392Mpa and 588Mpa respectively) and comparing it to the recommended torque value in the Bolt Torque Chart((e.g., EN 921-934 or ISO4732, 4032, 4017 …)

●Apply the necessary pressure as stated up to the torquing machine to begin torquing the bolt and nut.

●Follow the specific torquing orientation recommended for the ball valve body as mentioned above to ensure proper tightening.

●Continue torquing until the desired torque value is reached.

●Double-check the torque value using a torque wrench if necessary to ensure accuracy.

●Repeat the process for any additional bolts and nuts on the ball valve body as needed.

All malfunctioned bolts will follow the instructions on the TotalEnergies Training manual Course EXP-MN-SMO45 Rev 0 for handling any faulty bolt maintenance referenced by the client.

The importance of bolt torquing in valve assembly, as demonstrated in the case study at Bell Oil and Gas Plant, cannot be overstated. The process of bolt torquing ensures the integrity, reliability, and safety of valves, especially in high-pressure and high-class situations. Properly torqued bolts help prevent leaks, protect the environment, and increase operational efficiency. The specific process of torquing, as outlined in the case study, involves careful preparation, labeling, and application of torque to achieve the desired tightness. The use of tools such as the Enerpac torquing machine and air-driven impact wrenches further enhances the efficiency and accuracy of the torquing process.

●Torquing process for 12 inches x 600RF ball valve with the aid of Air driven pneumatic, hydraulic torquing machine.

●Testing of torqued valves.

●Some of the valves on arrival at the Bell Oil & Gas facility for testing

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Ebi Dike

Operations Manager

Ebi Dike is a dynamic and results-oriented operations and project manager. With a successful track record and specialization in pipeline and piping operations and projects spanning over 15 years, Ebi has consistently delivered exceptional results in complex and challenging project environments.
Ebi’s strong leadership abilities have allowed him to effectively coordinate cross-functional teams, fostering collaboration, and ensuring seamless communication throughout project lifecycles. Since his involvement in the Bonga FPSO project in 2004, Ebi has lead project teams on other FPSOs like Erha, Agbami, Akpo, Usan, and Egina. He has also led project teams on other offshore and land production facilities like Total’s Ikike Project, Chevron’s DSO – Meren GGCP & SONAM Projects, Interplant Corridor Escravos Pipeline Project, and Abiteye Sewage Treatment Plant Project.
Ebi’s technical expertise is complemented by his in-depth knowledge of industry regulations, safety protocols, and quality control standards. He consistently applies best practices and innovative solutions to optimize processes, enhance efficiency, and minimize risks. His ability to analyze complex situations and make data-driven decisions has proven invaluable in resolving challenges and delivering successful outcomes. As Operations Manager, Ebi is responsible for managing cross-functional field operations and delivering various complex projects across an array of clients.
Ebi has a Bachelor of Technology Degree in Geology and a Post Graduate Diploma in Computer Information Technology, both from Federal University of Technology, Owerri. He holds certifications in relevant areas such as piping design, equipment maintenance, safety, quality, and project management methodologies. He has also completed several training programmes in engineering design, construction, management, and improvement in operational processes. Ebi also actively pursues continuous learning opportunities and stays updated with the latest industry advancements.
Beyond oil and gas services, Ebi has interests in Systems and Design thinking, Data analytics, Agile concepts and principles, Lean Six Sigma principles, and emerging technologies. He is also an avid reader of different genres. Ebi is keen on making contributions to positively impact his immediate environment and the society at large.

Aigbe Abohi

Finance Manager

Aigbe Abohi is a seasoned professional with almost 10 years cognate industry experience in areas of accounting, financial management, financial planning and reporting, budgeting, and operational finance.

Prior to joining Bell Oil and Gas, he was a General Ledger Manager at Flour Mills of Nigeria Plc where he was responsible for general accounting operations, financial reporting, suggesting, and implementing sound internal control procedures, designing standard operating procedure manuals, preparing annual audited financial statements, as well as leading and coordinating external audit exercises for various companies in the agro allied value chain. He had also functioned as a finance and accounts team lead in other organizations where he oversaw finance and management reporting, accounts payables and receivables, inventory, payroll as well as fixed assets management.

In his current role at Bell Oil and Gas, he is responsible for supervising the finance team, coordinating a variety of finance and accounts activities including general accounting, accounts payables, payroll and treasury management, financial reporting and budgeting amongst others.
He holds a bachelor’s degree in Accounting from the University of Benin, and is a member of the Institute of Chartered Accountants of Nigeria (ICAN).

His hobbies include studying, sports, music, movies and networking.

DR. (Engr). Chima Ibeneche

Chairman, Board of Directors

Dr. (Engr.) Chima has over 31 years of experience in the oil and gas industry. He spent his first three years with Schlumberger where he started out in 1978. He joined The Shell Petroleum Development Company (SPDC) in 1986. Chima was sent overseas on assignment as Senior Petrophysicist, Land Operations, in  Nederlandse Aardolle Maatschaappij, a Shell/ Esso company in Assen, northern Netherlands. He returned to Nigeria in 1989 to become the Divisional Chief Petrophysicist. He was later appointed Chief Petroleum Engineer in the Western Division of The Shell Petroleum Development Company of Nigeria (SPDC).

Dr. Chima drilled the first horizontal well in Shell’s operations in Nigeria. From 1994 to 1999, he served as the Petroleum Economist for Europe and Africa at Shell International Headquarters in The Hague, Holland; Acting Petroleum Engineering Manager, Western Division; Human Resources Manager; and Deputy Development Director and Corporate Well Engineering Manager and Service Director at SPDC. In 2004, he became the Managing Director of Shell Nigeria Exploration and Production Company (SNEPCo), pioneering offshore and deep-water exploration and production operations in Nigeria and bringing on stream the Bonga field. Chima joined NLNG in 2008 as the first Nigerian Managing Director from The Shell Petroleum Development Company of Nigeria (SPDC), a position he held between 2008 and 2012. During the same period, he was the Executive VP of Bonny Gas Transport Limited.

As the Chairman Board of Directors in Bell Oil & Gas, he is responsible for leading the Board on strategic matters and guiding the company on its strategic direction. Dr. Chima holds a degree in Electronics and Electrical Engineering from the University of Nigeria, Nsukka and a Doctorate Degree Honoris causa in Production Management from the Federal University of Technology, Owerri. He is a member of the Society of Petroleum Engineers (SPE), Institute of Directors and the Nigerian Economic Summit Group. He is also the former president of the Nigerian Gas Association and a fellow of the Energy Institute of London. He also serves on the board of several notable companies.


Position: Assistant General Manager

Ejiro Erivona has over 20 years of international experience in the upstream sector of the oil and gas industry. His expertise spans Business Operations Management , Business Development, Contracts and process management in the oil service industry as well as the Exploration and production segment of the Oil and Gas Business. 

He has managed key business divisions for various multinationals like Falcon, General Electric and Baker Hughes, working in various countries in Africa and North America, leading multidisciplinary and multicultural teams to achieve stellar business outcomes. Most recently, he held the position of Senior Manager, Operations at Nigeria’s Major E&P Independent- Conoil Producing Nigeria. 

Experienced in business startups, as well as new business generation, Ejiro has a track record of closing major deals in the IOCs, NOCs and marginal field operators in the sub-continent. 

He holds a Master of Business Administration (MBA) from the university of wales and a Bachelor of Science in Computer Science from the University of Benin. He is also an alumnus of the Administrative College of India ( ASCI) 

Ejiro has a “Black Belt” in people and change management and has pursued the same with great flair. 


Chief Executive Officer

With a solid background in corporate strategy, business development, project management, business analysis and supply chain management, gained from key positions with various blue chip organisations, Kayode has many years international and domestic experience in driving businesses to achieve their strategic and corporate goals.

Prior to Bell Oil & Gas Ltd, he managed and delivered various strategic projects for multi-national corporations in Europe including business process re-engineering, organisation design, change management, ERP solutions, mergers & acquisitions, and post-merger business integration. He held strategic positions in different organisations including the Nigerian National Petroleum Corporation (London office), British Telecommunications (UK), Johnson & Johnson (UK), Cable & Wireless (UK) and GlaxoSmithKline (UK) where he managed and developed supply chain processes, new product introduction models, sales and operations planning policies, product rationing strategies, customer services and performance management methodologies across Europe. His various achievements led to him being named the Glaxo Wellcome IIP Award winner in 1998.

A finalist at the 2011 Ernst & Young Entrepreneur of the Year Award, and a founding director of Bell Oil & Gas, Kayode is a seasoned entrepreneur with a successful track record of leadership in cross-functional teams. At Bell Oil & Gas Ltd where he has held the position of CEO since inception, Kayode is responsible for corporate strategy, business planning, major projects development, change management, corporate governance, strategic alliances, brand management and corporate social responsibility. He is also responsible for the overall direction, growth and expansion of the company.

A strong advocate of continuous learning, Kayode is an ardent reader of a range of books covering leadership, motivation, relationship building, crime, autobiographies, and Christian literature. He is also a presenter and speaker at international conferences with specific interests in Strategic Alliances, Nigerian Content, and Entrepreneurship.

Kayode is an avid animal lover, with interests in exotic breeds of dogs, parrots, horses and wildlife. He is also a staunch Formula 1 follower, a lover of cricket, rugby, snooker, polo and sailing.

A Harvard Business School and Warwick Business School alumnus, Kayode is a highly motivated and articulate professional who brings with him, deep business insights, strategic thinking, and extensive management and business development experience and expertise spanning many key business areas.

A Certified Management Consultant (CMC), Kayode serves on the board of a number of companies, including several start-ups, provides advisory services to many organisations, within and outside the oil industry and supports young aspiring entrepreneurs in translating ideas into business reality. Kayode is also the founder and chairman of Rifugio Communications, a leading mobile phone retail and enterprise solutions provider in Nigeria. He holds a B.SC (Hons) Degree in Physics, an MSc in Advanced Manufacturing Systems, an MBA and a Doctorate Degree in Business Administration with research interest in Strategic Alliances and Implications for Local Capacity Development in the Nigerian Oil & Gas industry.

Kayode is a member of the Institute of Directors, the Nigerian Institute of Management and a Fellow of the Institute of Management Consultants (IMC-Nigeria).

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