Image log interpretation reimagined
ImageStrat was founded in 2018 to provide specialist consulting services to the oil and gas industry. We're based in Perth, Western Australia. We can QC, process and interpret a wide variety of borehole images, and add value by working closely with you, and your consultants, to maximise the value of your data.
Our logo is a stylised view down a borehole representing the layers of strata in the false colours used in resistivity borehole images.
Andy Wilson PhD
Chief Geologist / Director
Andy gained BA (Hons) and MSci degrees in Geological Sciences from the University of Cambridge in 2005. Staying at Cambridge he completed his PhD in Geology in 2009. Moving to Liverpool University Andy joined the STRAT Group as a researcher studying the stratigraphic architecture and sedimentology of the fluvial Beaufort Group in the Karoo Basin of South Africa. This led to the development of a field school in fluvial sedimentology and stratigraphy which Andy co-led on three occasions with colleagues from Manchester University and Chevron Australia.
In 2013 Andy took up the position of Geological Manager with Chemostrat Australia, then moved to Task Fronterra Geosciences in 2015 as a sedimentologist working on borehole image interpretation. Before founding ImageStrat he worked at MGPalaeo as a sedimentologist and, later, a borehole image interpreter. Andy has worked on projects from basins in Australia, PNG, New Zealand, and China.
A field geologist at heart, Andy has extensive fieldwork experience in Iceland, Taiwan, South Africa, New Zealand, Switzerland, Spain, Greece and Italy, among other places. He has also co-authored a number of peer-reviewed papers in premier journals, and maintains an interest in fluvial processes and deposits.
Andy is also the Technical Talks Coordinator for PESA WA and is always on the lookout for interesting speakers and talks!
Forbes, A., Long, D., McNee, F., Millar, A., and Wilson, A., 2019. Placing key casing points using wellsite chemostratigraphy in the Ungani Field, Canning Basin, Western Australia, in Keep, M., and Moss, S.J. (Eds), The Sedimentary Basins of Western Australia V: Proceedings of the Petroleum Exploration Society of Australia Symposium, Perth, WA, 2019, 9 pp.
Wilson, A., Flint, S., Payenberg, T., Tohver, E. and Lanci, L., 2014. Architectural styles and sedimentology of the fluvial lower Beaufort Group, Karoo Basin, South Africa. Journal of Sedimentary Research, 84(4), pp.326-348.
Ratcliffe, K.T., Wilson, A., Payenberg, T., Rittersbacher, A., Hildred, G.V. and Flint, S.S., 2015. Ground truthing chemostratigraphic correlations in fluvial systems. AAPG Bulletin, 99(1), pp.155-180.
Ratcliffe, K.T., and Wilson, A., 2014. Stratigraphy in the Oil Industry. Petroleum Exploration Society of Australia News Resources, Issue 128, February/March 2014.
Griffiths, J.D., Sullivan, N.B., Wilson, A., and Ratcliffe, K., 2015. Basin-to-shelf correlations in the Canning Basin, NW Australia, using Stable Carbon Isotope Stratigraphy. Petroleum Exploration Society of Australia News Resources, Issue 130, October/November 2015.
Lena Thrane PhD
Principal Image Log Analyst
Lena gained MSci and PhD degrees in Geological Sciences from the University of Copenhagen, Denmark. After graduating she worked as external lecturer and lab instructor teaching different aspects of geology at Universities in Denmark before joining the Geological Survey of Denmark and Greenland as Reservoir Geologist. Research projects at the Reservoir department of the Survey were focused on fracture system geometry and fluid flow, and were projects joined with Universities and Research institution in Europe, funded by the European Union.
In 1997 Lena joined Z&S Geoscience as Borehole Image specialist working on processing and geological interpretation of borehole image data, with projects centred round fault and fracture distribution as well as facies distribution in a broad spectrum of geological settings throughout the world. Z&S Geoscience became part of Baker Hughes Pty Ltd in 1999 and in 2008 she transferred to a position as Senior Geologist for Baker Hughes in Perth. Lena’s experience with borehole image data also includes comprehensive knowledge on data QC and experience processing data recorded with many different types of borehole image tools developed over the years.
Thrane, L. and Ottesen, C., 2000. Heterogeneities in chalk determined from borehole image logs. JCR V, Brighton (abstract)
Pedersen, S.A.S., Håkansson, E.,Heinberg, C. and Madsen, L., 1992. Variations in the regional stress field through the Carboniferous - Tertiary development in North Greenland. Norsk Geol. Tidskr., 72, pp.137-138.
Odling, N.E., Gillespie, P., Bourgine, B., Castaing, C., Chiles, J.P., Christensen, N.P., Fillion, E., Genter, A., Olsen, C., Thrane, L. and Trice, R., 1999. Variations in fracture system geometry and their implications for fluid flow in fractures hydrocarbon reservoirs. Petroleum Geoscience, 5(4), pp.373-384.
Stemmerik, L., Håkansson, E., Madsen, L., Nilsson, I., Piasecki, S., Pinard, S. and Rasmussen, A., 1996. Stratigraphy and depositional evolution of the Upper Palaeozoic sedimentary succession in eastern Peary Land, North Greenland. Bull. Grønlands geol. Unders. 171, pp.45-71.
Bill Power PhD
Consulting Structural Geologist
Bill received BS, MA, and PhD degrees in the 1980s from Caltech, University of California, and Brown University (USA). His PhD work focused on the application of laboratory rock friction studies to natural fault zones.
Bill was invited to Australia in 1989, and worked at the CSIRO Division of Geomechanics working on modelling and analysis of fault zones and gold deposits.
In 1997, Bill started consulting in mineral exploration and mining, working for Perth-based consulting firms and mineral exploration companies Fractal Graphics, Fractal Geosciences, and Geoinformatics Exploration.
In 2007 Bill started working in oil and gas, first at Task Geoscience (structural geology and analysis of image logs) and then later at Geomechanics International/Baker Hughes, where Bill concentrated on gemechanics, specifically analysis of in-situ stresses and applications to wellbore stability, fluid flow in fractured media, infrastructure planning, sand and solids production, and fault reactivation analysis.
From 2016 Bill has run Power Geoscience, whilst remaining an active independent researcher in rock mechanics and fault zone evolution. His work over the last 4 years has involved a mix of oil and gas, rock mechanics, mineral exploration, and fault zone behaviour.
Geomechanics - Pore Pressure and Fracture Gradient Estimation: Drilling Applications. Presented at a specialist seminar “Geomechanics Fundamentals, Applications, and Advances” organized in by the SPE Western Australia, 24 October, 2016.
Geomechanical Model for the Rang Dong Field - Off Shore Vietnam - Implications for Development Strategy for Fractured Basement Reservoirs, presented at SPE meeting, Ho Chi Minh City, Vietnam, 18 May, 2011.
Ong, S. H., Power, W. L., Sitio, A., Tanjung, E., 2015. Geomechanics improves drilling operations and reduces non-productive times (NPT) in Kilo Field, offshore Northwest Java. Presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, Bali, Indonesia, 20-22 October, 2015, Paper SPE-176445-MS, Society of Petroleum Engineers, 20 pps.
Power, W. L., Tjengdrawira, A., Aprianto, S., Suwono, S., Rachman, S. G., Wijanarko, M., Febrianto, D. H., Baasir, A., and Hasanusi, D., 2012. In-situ stresses, rock strength, fluid pressure, and implications for wellbore stability and oil and gas development in the Senoro and Tiaka Fields, Sulawesi, Indonesia, presented at the Indonesian Petroleum Association Thirty-Sixth Annual Convention & Exhibition, Jakarta, May 2012, Proceedings, Indonesian Petroleum Association paper IPA12-E-073, 7 pps.
Power, W. L., Sano, T., Ooi, D. C., Castillo, D., Magee, M., and Burgdorff, K.,2010. In situ stress and rock strength in Rang Dong Field – off shore Vietnam – implications for drilling in basement rocks, Society of Petroleum Engineers Technical Conference and Exhibition, Ho Chi Minh City, Vietnam, November 1-3, 2010, SPE Paper No. 135737, 14 p.