Don Cal

To add value to any organisation where I am allowed to put in all the skills at my disposal while striving to improve on my performance through learning opportunities. To work in an atmosphere where creativity, innovation, productivity and impact are of esteemed values, putting in my efforts with the sole aim of achieving organisational goal(s). I am focused, diligent and a team player; above all, I am trainable and eager to learn.

I am versed in the use of drilling software and other computer-based programs to include RIM DRILL, CAD and Safe Kick.

Rig Liaisonman - Saudi Geophysical - Kingdom of Saudi Arabia

(2026-08)

• Supervise drilling, fishing, testing and completion operations on (DURGA RIG-6)
• Drilling, plugging and abandoning of Oguali 5PH1 well, as planned on time

Drilling and Technical HSE Engineer - Altaphconsulting Ltd, UK - United Kingdom

(2026-02 - 2026-08)

• Evaluate offset data before the start of drilling
• Observe drilling optimisation and review all safety records for rig operations
• Manual interpretation of 3-D seismic sections using well log, velocity check shots and seismic data
• Input of petroleum data into the database (Petrodat)
• QA/QC of database query delivery and safety, in accordance with company and country HSE policies
• Work as an HSE, maintain and manage all health and safety policies and document control systems, including conducting site safety inductions and tool box talks among other safety policies
• Update and create standard operating procedures as may be required

Well site Drilling Supervisor - Lone Star Drilling Nig. Ltd - Offshore Nigeria

(2020-10 - 2025-11)

Rig type: Rig 3 and 4 offshore 3500HP rig

• Carried out prompt mobilisation of equipment, tools and service hands to the location and demobilisation thereafter
• Reported to the office on a regular basis of daily activities on the well location
• Support investigations and follow-up on accidents and incidents arising from well site operations
• Worked closely with and support multi-disciplinary teams of professionals (HSE, Completions, Subsurface, Facilities, Production, Regulatory, etc.) in the execution of drilling projects
• Provided support to Site Supervisors regarding daily activities on the rig including safety, training and personnel
• Captured and implement lessons learned
• Managed service hands, rig crew and equipment to optimise operational performance and efficiency
• Ensured all operations are planned and carried out in accordance with safe operational procedures and good drilling practices, as well as Company's HSE policies and procedures
• Supervised the monitoring of all drilling parameters while drilling (including torque and drag, and wellbore trajectory) to ensure they are as per the recommendation
• Preparation of proper operational look-ahead planning to avoid NPT
• Critically examine input from service contractors to ensure they meet the required standard

SPE/Stem Volunteer Engineer - STEM Ambassador Volunteer, Aberdeen, United Kingdom - Aberdeen, United Kingdom

(2018-08 - 2020-10)

• Volunteering in Aberdeen schools, educating students about engineering, the Oil and Gas Science-related proficiencies and Skills Management

Drilling/Workover/Well Completion Projects Supervisor - Various Operators - Nigeria, Liberia, Ivory Coast

(2007-06 - 2017-02)

• Olokobiri Phase V, ERD (Extended reach drilling) 4 Wells successful
• Agbami, Nigeria — 12 Wells
• Sapele - Swamp wells, Nigeria, including side track
• Owowo Phase 2 Project (9 wells) and Erha Phase 2 (10 wells)
• Liberia Exploration (Mesurado 1)
• Re-entered and Re-completed Ibigwe well-1 successfully
• Drilled and completed Ibigwe well-8 successfully
• Ivory Coast/Abidjan/San Pedro Exploration (Ayeme 1) HTHP

Well site Drilling Supervisor - Seadrill Offshore Units (West Saturn) - Offshore

(2014-09 - 2017-02)

Rig type: Drill ship - Dual Derrick Rig

• Monitoring of all drilling parameters (including torque and drag, and wellbore trajectory) to ensure they are as per the recommendation while drilling
• Liaised with mud engineers and mud loggers in monitoring mud hydraulics for optimal primary well control and proper hole cleaning while drilling
• Ensure timely materials requisition for every Hole sections till the completion of well
• Ensure tools IDs & ODs run in hole are properly measured
• Prepare casing tally, check cementing calculations & assist the DSV in monitoring cementing procedures to ensure smooth operations
• Maintain bit performance records, well histories, directional surveys and drilling cost records
• Supervise the function test and pressure test of BOPs and related equipment
• Supervise and witness pressure test and function test of all other required equipment
• Daily well site safety regulations enforcement and supervision
• Prepared plans for executing well program with rig contractor personnel and third-party
• Managed day-to-day operations on site in a safe and efficient manner
• Maintain detailed records of all well data gathered from mud engineering, mud logging and deviation control and make necessary input in the daily well report
• Ensure accurate monitoring and quality check of Mud cost/ft
• Mud logging data
• Casing tally
• Wire line open hole logging
• Wire line cased hole logging
• Perforation
• Daily and cumulative well cost/depth
• Decommission and commissioned new main flowlines with automated valves of 1000bls holding capacity pits offshore (x12)

Rig Drilling Engineer - Oando Energy Services - Offshore Nigeria

(2007-06 - 2014-08)

Rig type: Team Work, Jack-up Rig

• Managed OES team work on a jack-up rig while reporting to the lead drilling Supervisor
• Participated in the preparation of drilling programmes, preparing cost and time management estimates for drilling operations and expenditures (AFE)
• Ensured equipment are available for prompt delivery to the rig offshore
• Prepare drilling engineering modelling as required to support planning and ongoing drilling operations
• Collect and analyse data to assist in optimising rig-site drilling activities and future well programmes, such as torque and drag, and hole cleaning
• Performed calculations such as hydraulics, leak-off tests, casing/tubing tallies, cement volumes, etc.
• Ensured the construction of the well meets regulatory requirements while participating in all safety and environmental-related activity within the team
• Visited service company yards to observe equipment tests and make up equipment's
• Handled the decommissioning of Tincan Kalamantan projects Niger-Delta wells, marginal field, (plug and abandonment)
• Generated and implemented drilling fluid programmes, and implemented an effective pit management system
• Supervised all onshore yard activities and wrote comprehensive reports for the management teams

Plant maintenance and Mechanical Engineer - National Youth Service Corp (NYSC) - Akure, Nigeria

(2005-09 - 2006-09)

National service, State Ministry of Works and Housing Akure.

MSc - Energy Management - Robert Gordon University (2026-12)

Certification Course - Energy Data Management - Aberdeen Business School (2023-08)

Certification Course - Renewable and Energy Transition Management (Solar, Wind, Hydro and Geo-thermal) - Aberdeen Business School (2022-09)

Post Graduate - Drilling and Well Engineering - Robert Gordon University, Aberdeen, UK (2019-02)

PGDip - Drilling in Petroleum Engineering - Federal University of Technology, Owerri (FUTO), Imo State, Nigeria (2015)

Course - Fundamentals and Advanced Petroleum Engineering - University of Texas, Austin, USA (2012)

Certification - Drilling Technology I, II and III - Maritime Drilling School, Nova Scotia, North Sydney Canada (2011)

B.Eng. - Mechanical/Production Engineering - Enugu State University of Science and Technology (ESUT), Enugu, Nigeria (2004)