Technical Team


Drew Cadenhead Drew Cadenhead, B.Sc; P.Geol, Chief Operating Officer
Mr. Cadenhead has enjoyed a highly successful geotechnical and executive career over the past 25 years. He received world-class technical training and in-depth knowledge of the Western Canadian Sedimentary Basin during his 13 years with Canadian Hunter. Following that, Mr. Cadenhead worked in various leadership capacities for a number of Canadian-based companies including Summit Resources, where he was responsible for identifying and leading Summit into the Gunnell area of BC to test the Upper Devonian Jean Marie Formation where multi-TCF of gas was subsequently discovered. Mr. Cadenhead gained his international experience with Fletcher Challenge Energy and TAG Oil in New Zealand, leading a team of geoscientists, engineers and technical support staff into a successful multi-well drilling program and secondary recovery implementation. Mr. Cadenhead holds a Bachelor's degree in Geology from the University of Calgary.
David Francis David Francis, M.Sc, Geological Advisor
A geologist with over 30 years experience and an expert on New Zealand's East Coast Basin, Mr. Francis has worked extensively in the Australasian region. He previously served as a field geologist for the New Zealand Geological Survey, conducting extensive mapping and basin analysis. He has authored dozens of scientific papers and reports detailing East Coast Basin petroleum geology, and has built a large database of geological information on this basin. Mr. Francis' expertise lies in his ability to interpret field data and communicate with and direct other specialists. In 1981 he played a major role in discovering a large ore body in Western Australia resulting in a substantial increase in mineable ore. He has an M.Sc. from Auckland University.
Alexandra Johansen Alexandra C. Johansen, B.Sc (Hons), NZCS, Geologist
With over 14 years experience in the geological and geotechnical fields, Ms. Johansen has a proven track record in the oil industry and engineering fields. Currently a geotechnical specialist, she investigates the geology and geomorphology of development areas. Ms. Johansen gained experience in the oil industry with Southern Petroleum NL, while engagements with Elf Hydrocarbons in Singapore and various well site contracts honed her skills at assessing prospectivity and interpreting geological data, while drilling exploratory and development wells. A long-time colleague of Dave Francis, Ms. Johansen is knowledgeable on East Coast Basin geology, field mapping formations and identifying areas of interest. Ms. Johansen researched reservoir analysis and has published several papers in geological journals. She has a BSc (Hons) Geology from Victoria University of Wellington, NZ and an NZCS (Geology) from TOPNZ, Wellington, New Zealand.
David McCall, B. Eng. (Hons), MBA, Engineering Consultant
Mr. McCall has worked with Mobil Oil in the North Sea, UK, where he was one of only two engineers invited to Mobil's Graduate Engineer Training Program. During this rigorous development program David experienced a broad range of petroleum engineering faculties, including drilling, completions, reservoir and facilities engineering and offshore operations. He then joined Advanced Well Technologies, one of the leading sources of consulting engineers in the Australasian area, working on projects in Australia, New Zealand and India. He has a B. Eng. from the University of Aberdeen and an MBA from the Cranfield School of Management in England, and is a member of the SPE.
Carlos Kazianis, BA, Operations Geologist
Mr. Kazianis has extensive international field experience in well site supervision, management of drilling operations and critical technical support. He also provides collation and completion of geological prognosis for drilling, well planning, selection of service companies and other technical assistance. Well-known for his diligence, Mr. Kazianis has worked in Europe, Africa, Middle East, South East Asia, Papua New Guinea and New Zealand. Previously, he was a senior advisor to the Petroleum and Minerals Investment Unit of New Zealand's Crown Minerals and a former Lieutenant in the New Zealand army.
Roger Brand Roger Brand, BA, Technical Consultant
Mr. Brand has had a distinguished 30-year career as a geologist, honing his expertise in the definition of hydrocarbon plays in the Taranaki Basin for the past 18 years. In addition to preparing permit applications and evaluating exploration acreage for Trans-Orient, he has consulted for numerous other companies, including Arco, Shell and Todd. After graduating from Oxford University in 1974, he worked for British Petroleum as a geologist in both the North Sea and onshore United Kingdom. Following a move to New Zealand in 1982, he served for three years as a chief geologist for New Zealand Oil and Gas. Before exploring for oil, he briefly worked as a field officer for DeBeers in Africa, prospecting for diamonds. He has a B.A. in geology from Oxford University.
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