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Research and Technology Development

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Practical application of novel technology, and improved understanding of the sub-surface, enable improvements in drilling, completion design and field developments. 

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Addis & Yassir have a track record of conceptualising and developing novel ideas and driving research developments through our global experience in managing R&D teams in major Operating Companies and R&D organisations.

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Our track record of technology development includes; 

  • In situ stress estimation methods,

  • Novel techniques for stress estimation in tectonic environments,

  • Assessing the impact of reservoir depletion on stress evolution,

  • Software development toidentify conductive natural fractures in real-time,

  • Hydrological mapping of the NWS,

  • Evaluating detailed cap rock integrity using a structural basis,

  • Novel sand management completion designs,

  • Laboratory investigations of wellbore stability in inclined wells,

  • Laboratory evaluation of stress relief on cores,

  • Stress determination and stress mapping in the Gulf of Mexico,

  • Assessing the sensitivity of acoustic velocities to stress magnitudes and stress paths,

  • Downhole tool development for long term (whole of well life) pore pressure measurements,

  • Software development for real-time selective perforation designs,

  • Sand quantification methods and software development.

Most of these development were achieved through an integrated research team and often in collaboration with asset teams in the operating companies.

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Addis & Yassir pursues in-house technology developments along with analysis improvements and are able to manage third party R&D projects.

 

Current studies underway include research on ;

  • Determining the mechanisms that control horizontal stress magnitudes and stress contrasts for CO2 containment and fracture containment, 

  • Refining the use of different failure criteria for wellbore instability analysis, 

  • Reviewing the stress regimes in the UAE and surrounding region, and

  • A novel approach to improved ROP through modified BHA design

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Patents

 

  1. “Non-Circular Boreholes” Patent application No. PCT/US2005/017082, Filed 17th May 2005. Co-inventors, Addis, M.A. and Khodaverdian, M. F.

  2. “Slotted Completion for Sand Management and Hole Stability.”Addis, M.A., V.A. Dunayevsky, D.F. Fehler, M.F. Khodaverdian, and C.A. Lee., 2003. (EPO Patent Application No. 03257143.2). US patent number 7451818.

  3. “Method and System for Producing Hydrocarbon Fluid through a Well with a Sensor Assembly Outside the Well Casing” Addis, M.A.,Birch, W., Den Boer, J.J., Rice, S.A. (Patent Application PCT/EP2009/062577).

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Publications

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  1. M.A. Addis (2017). Rock Mechanical Property Testing for Petroleum Geomechanical Engineering Applications. In Xia-Ting Feng (ed.) Rock Mechanics and Engineering, Volume 5: Surface and Underground Projects, Chapter 15, CRC Press, Taylor and Francis Group. ISBN: 978-1-138-02763-3. 

  2. Qobi, L., Al-Wardy, W. & M.A. Addis (2017) Geomechanical Screening for Field Development Projects. Paper accepted in SAGA 2017 conferencein Cape Town, S. Africa, 10-13thSeptember 2017.

  3. M.A. Addis (2017). The Geology of Geomechanics: Petroleum Geomechanical Engineering in Field Development Planning. In: Turner, J.P., Healy, D., Hillis, R.R. and Welch, M.J. (eds) Geomechanics and Geology, Geological Society, London, Special Publications, 458, https://doi.org/10.1144/SP458.7

  4. Addis, M.A. & Yassir, N. 2010. Geomechanical Engineering of Tight Gas Sand Developments. SPE 136919. SPE/DGS Annual Technical Symposium and Exhibitionheld in Al-Khobar, Saudi Arabia, 04–07 April 2010.

  5. Bauer, A., Lehr, C., Korndorffer, F., van der Linden, A., Dudley, J., Addis, T., Love, K., and Myers, M. 2008. Stress and pore-pressure dependence of sound velocities in shales: Poroelastic effects in time-lapse seismic. SEG Extended Abstract, SEG annual meeting 2008, Las Vegas, Nevada.

  6. Addis, M.A., Khodaverdian, M., Lee, C.A. and Fehler, D.F. 2005. Slotted Completion for Sand Management: A Novel Screenless Completion Technique. SPE/IADC 97415. Proc.SPE/IADC Middle East Drilling Technology Conference and Exhibition, Dubai, U.A.E., 12-14th September 2005.

  7. Addis, M.A., Khodaverdian, M., Lee, C.A. and Fehler, D.F. 2005. Slotted Boreholes for Improved Well Stability and Sand Management. ARMA/USRMS 05-789. Proc. Alaska Rocks 2005 Conference, the 40th Symposium on Rock Mechanics (USRMS): Rock Mechanics for Energy, Mineral and Infrastructure Development in the Northern Regions, held in Anchorage Alaska, 25-29th June 2005. 

  8. Yassir, N, and Addis, M.A. 2002. Relationships between pore pressure and stress in different tectonic settings, in A.R. Huffman and G.L. Bowers, eds., Pressure Regimes in sedimentary basins and their prediction: AAPG Memoir 76, pp.79-88.

  9. Addis, M.A., Hanssen, T.H., Willoughby, D.R., Yassir, N. and Enever, J. 1998.  A Comparison of Leak-off Test and Extended Leak-off test data for Stress Estimation. SPE/ISRM 47235, Proc. Eurock ’98 Conf., Trondheim, Norway, July 1998.

  10. Wu, B., Addis, M.A. and Last, N.C. 1998.  Stress Estimation in Faulted Regions: The Effect of Residual Friction. SPE/ISRM 47…, Proc. Eurock ’98 Conf., Trondheim, Norway, July 1998.

  11. Addis, M.A.1997.  The Stress - Depletion Response of Reservoirs. SPE 38720, Proc. 72nd SPE Annual Technical Conference & Exhibition, San Antonio, 5-8 October 1997.

  12. Addis, M.A.1997.  Reservoir depletion and its effect on wellbore stability evaluation. NYRocks ‘97 Conference, 36th U.S. Rock Mechanics Symp., June 1997.

  13. Enever, J.R., Yassir, N.A., Willoughby, D.R. and Addis, M.A.1996.  Recent experiences with extended leak-off tests for in-situ stress measurement in Australia.  APPEA Journal1996, pp.528-535.

  14. Addis, M.A., Last, N.C. and Yassir, N.A. 1996.  Estimation of horizontal stresses at depth in faulted regions, and their relationship to pore pressure variations.  SPE Formation Evaluation, Vol. 11, No. 1, March, pp.11-18.

  15. Enever, J.R., Yassir, N.A., Addis, M.A.,Willoughby, D.R., Tan, C.P. and Schmidt, P. 1995.   A note on the status of deep stress measurement/estimation research in CSIRO. Int. Workshop on Rock Stress Measurement at Great Depth (Rock Mechanics Congress), Tokyo, Japan, September 30, 1995, 40-45.

  16. Addis, M.A.,Last, N.C. and Yassir, N.A. 1994.  The estimation of horizontal stresses at depth in faulted regions, and their relationship to pore pressure variations.  Proc. Eurock ‘94, Rock Mechanics in Petroleum Engineering, Delft, Nederlands, 29-31 August, pp.887-895.

  17. Addis, M.A. and Wu, B. 1993.  The role of the intermediate stress in wellbore stability:  Evidence from hollow cylinder tests.  U.S. Rock Mechanics Symp:  Rock Mechanics in the 1990s, Madison, Wisconsin, June 1993, B. Haimson (ed.), Vol. 1, pp.57-60.

  18. Ringstad, C., Addis, M.A., Brevik, I., and Santarelli, F.J. 1993.  Scale effects in hollow cylinder tests.  Scale Effects in Rock Masses, ed. Pinto da Cunha, Balkema.

  19. Addis, M.A., Barton, N.R., Bandis, S.C. and Henri, J.P. 1990.  Laboratory studies on the stability of vertical and deviated wellbores.  SPE Paper 20406, 65th Annual SPE Conference, New Orleans, September 1990.

  20. Addis, M.A.1989.  The behaviour and modelling of weak rocks.  Proc. Int. Rock Mechanics Symp.: Rock at Great Depth, Pau, September 1989, V. Maury and D. Fourmaintraux (eds.), Vol. 2, pp.899-905.

  21. Addis, M.A. and Jones, M.E. 1989.  Mechanical behaviour and strain rate dependence of high porosity chalk.  Proc. Int. Chalk Symp., Brighton, September 1989; pp.239-244.

  22. Addis, M.A.1987.  Material metastability in weakly cemented sedimentary rocks.  Memoirs of the Geological Society of China, Vol. 9, pp.495-512.

  23. Jones, M.E. and Addis, M.A. 1986.  The application of stress path and critical state analysis to sediment, deformation. Journal of Structural Geology, Vol. 8, pp.575-580.

  24. Jones, M.E. and Addis, M.A.1985.  On changes in porosity and volume during burial of argillaceous sediments.  Marine and Petroleum Geology, Vol. 2, pp.247-253.

  25. Jones, M.E. and Addis, M.A.1985.  Deformation mechanisms in the Chalk.  Conference of the Chalk Research Group, Stavanger, Norway, May 1985.

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