Management Team

Our team has the technical expertise to allow Zephyr Well Engineering Ltd to deliver high quality consultancy to its clients.

Dr Graham Ross

PhD in Petroleum Engineering from Heriot-Watt University


International professional with 38 years of oil and gas industry experience commencing with Phillips Petroleum and including 18 years at Enterprise Oil, holding posts as Drilling Manager Land Operations England, Drilling Manager Indonesia, Drilling Manager Vietnam, Nelson Field Drilling Manager (UK), UK Drilling Manager and ultimately Group Drilling Manager overseeing all worldwide operations.


He was subsequently involved in planning and executing deep water operations offshore West Ireland for Enterprise Oil and offshore Ghana for Afren along with other shallower water projects in West Africa for Premier Oil, Afren and Rialto in countries such as Guinea Bissau, Gabon, Nigeria and Ivory Coast including fast track developments with rig-installed topsides.


More recently he was Drilling Manager for PA Resources for a jack-up rig campaign in the Danish sector of the North Sea, then spent 3 years as Group Drilling Manager for Petroceltic overseeing operations in the Black Sea, Kurdistan, Algeria and Egypt.


In the past year Graham, has lead projects for Gaz Du Cameroun on HPHT land operations, and for Svenska’s deep-water operations offshore Guinea Bissau.


He has 31 years of experience in Drilling Operations Management and is widely recognised as a leader of teams that provide high quality performance.


He is a life member of the Society of Petroleum Engineers and retains close links with Heriot-Watt University as a student mentor.


  • PhD in Petroleum Engineering from Heriot-Watt University
  • 38 years Operator experience
  • 30+ years in Management of Drilling operations
  • Specialist in remote operations
  • Hands on approach
  • Special Situations; Montara Blowout – Timor Sea, Tanker Collision with Platform - Persian Gulf
  • Expert Witness
  • Petroleum Engineering Student Mentor for 20+ years


Well Types

  • Land - including HPHT and MPD
  • Platform Development
  • Subsea Development
  • Subsea HPHT
  • Shallow/medium water depth Exploration and Development
  • Remote location Wild Cat drilling
  • Deepwater - Atlantic Frontier and West Africa
  • Relief Wells


Rig Types

  • Semi-Submersibles including deep-water
  • Drill-ships including deep-water
  • Platforms
  • Jack-ups
  • Land Rig



  • Algeria
  • Australia
  • Bulgaria
  • Cambodia
  • Cameroun
  • Denmark
  • Egypt
  • Gabon
  • Ghana
  • Guinea Bissau
  • Indonesia
  • Ireland
  • Ivory Coast
  • Italy
  • Kurdistan
  • Nigeria
  • Norway
  • Peru
  • Romania
  • Tanzania
  • UAE
  • UK
  • USA
  • Vietnam

38+ Years Experience

24 Countries

5 Rig Types

31 Years as Drilling Manager

Over 10 Remote Locations

6 Continents

Adrian Jones

MSc in Petroleum Engineering from Imperial College


International professional with 30 years of experience, including the design and supervision of all aspects of drilling, completions, work-overs and well testing operations. Experienced in establishing and successfully managing departments, within an Operator as well as in a Service/Contractor environment.


Technical experience in planning and executing well construction activities on Semi-Submersibles, Drill-ships, Platforms, Jack-ups, and land – including deep water, remote location, extended reach, HPHT as well as numerous subsea completion projects.


Experienced in Field Development both from overall Project Management and in optimising well design. Strengths include strong leadership and a proven record of delivering excellent HS&E and operational performance.


  • MSc in Petroleum Engineering from Imperial College
  • 30 years Operator/Contractor experience
  • 22 years in Management of Drilling operations
  • Fit for purpose ‘Finder’ wells (over 1 million feet)


Well Types

  • Engineered/Managed over 200 wells (including Side-Tracks) in the UKCS
  • Experienced planning and managing HPHT wells
  • Remote location Wild Cat drilling
  • Managed wells on over 11 Subsea Development Projects


Rig Types

  • Semi-Submersibles
  • Drill-ships
  • Platforms
  • Jack-ups
  • Land Rig



  • UKCS
  • India
  • East Africa
  • Brazil

30+ years Experience

Over 200 E/A and Dev Wells

5 Rig Types

Over 1MM feet of wells drilled

11 Subsea Dev Projects

4 Continents

Clients: 2021 - Present