Technical Papers

The papers in this bibliography are grouped into six sections:

  1. Deep Water and Exploration Drilling
  2. Organisation and Human Factors
  3. Wellbore Surveying
  4. Directional Drilling
  5. Well Control -shallow gas
  6. General Well Engineering

Due to Society of Petroleum Engineers copyright restrictions, the papers with SPE reference numbers are not available for download. They may be purchased and downloaded directly from, which is a multi-society library that provides a simple way to search for and access a broad range of technical literature related to the oil and gas exploration and production industry.

For non-SPE papers, please contact John directly for assistance.

Deep Water and Exploration Drilling

Minton, RC & Thorogood JL.: "Planning the first Deep Water Well Offshore Norway", presented at Offshore Europe, Aberdeen, Sept 1997, SPE 38505. Published in SPE Drilling and Completions Journal, September, 1998

Thorogood JL and Bardwell KS.; "Risk Assessment of a Dynamically Positioned Drilling Operation", SPE 39338. SPE/IADC Drilling Conference, Dallas, TX, March 1998

Thorogood JL, Train AM and Adams AJ, "Deep Water Riser System Design and Management", SPE 39295. SPE/IADC Drilling Conference, Dallas, TX, March 1998

Adams AJ, Thorogood JL: "On the Choice of Current Profiles for Deep Water Riser Design", SPE 49262. Presented at SPE Annual Technical Conference, New Orleans, September 1998.

Thorogood, JL, Hovde, F, Loefsgaard, D, "Risk Management in Exploration Drilling", SPE International Conference on Health, Safety and the Environment in Oil and Gas Exploration and Production, Stavanger, 26-28 June, 2000. SPE 61038

Thorogood JL, Hogg TW, Kalshikov AG: "Exploration Drilling in the Russian Far East: Two Years of Experience and Learning Offshore Sakhalin Island", SPE/IADC Drilling Conference, Miami, Feb 21-23, 2006. SPE 99044. Repeated in a modified form as SPE103650 at the Russian Oil & Gas Conference and Exhibition, Moscow October 2006. Also published in Drilling Contractor May/June 2006.

Thorogood JL, Brown, John D, Urvant, V, Rolland, NL:: "Deployment of a Riserless Mud Recovery System Offshore Sakhalin Island", SPE/IADC Drilling Conference, Amsterdam, February 2007, SPE 105212. Also summarised in Oil & Gas Journal April - May 2007.

Organisation and Human Factors

Thorogood, JL, "Technical Integrity and Continuous Improvement - Key to Survival Beyond the Nineties", SPE 27977, U of Tulsa Centennial Petroleum Engineering Symposium, 29-31st August, 1994.

Thorogood, JL, "Organisation, Integrity, Learning - the Keys to Success in Well Construction", SPE/IADC 29337, SPE/IADC Drilling Conference, Amsterdam, 28 Feb 2 March 1995.

Rixse, MR. and Thorogood JL., "Building a System in a Service Company to Assure Technical Integrity and Institutionalise Learning", SPE/IADC 35067, SPE/IADC Drilling Conference, New Orleans, 12-15 March, 1996

Thorogood, JL, "Delivering Step Change in Performance from Well Construction Teams", SPE 37572, SPE/IADC Drilling Conference, Amsterdam, March 1997, in preparation.

Thorogood, JL, Jackson, MD, Thorsen OH, "Delivering World Class Exploration Drilling - Integration of Design, Planning and Execution", SPE 59205, presented at the 1999 SPE/IADC Drilling Conference, New Orleans, February 24th 2000 and also in Journal of Petroleum Technology, April 2000

Thorogood, JL, "Using Project Management Techniques to Deliver Best in Class Drilling Performance", 16th World Petroleum Congress, Calgary, Canada, June 2000

Crichton MT, Henderson WG and Thorogood JL: "Command Skills for Drilling and Completion Teams: Managing the Unexpected". SPE Annual technical Conference, Houston Tx, 25-29 September 2004. SPE 89901

Lauche K, Sawaryn SJ, Thorogood JL: "Capability Development with Remote Drilling Operations", SPE Intelligent Energy Conference, Amsterdam, April 11-13 2006, SPE 99774.

Wellbore Surveying

Thorogood J.L., "Development of a Reliable Deviation Surveying Programme Using Standard Instruments", European Offshore Conference and Exhibition, London, Paper EUR 247, October 1980.

Thorogood J.L., "How BNOC Controls Directional Drilling", Petroleum Engineer International, pp. 26-44, May 1980.

Thorogood J.L. "Well Surveying: Past Progress, Current Status and Future Needs", World Oil, pp. 87-94, January 1986.

Thorogood J.L., "How to get the Best Results from Well Surveying Data", World Oil, pp 98-106, April 1986.

Thorogood J.L., "How to Specify and Implement Well Surveys", World Oil, pp 44-50, July 1986.

Thorogood J.L., "Instrument Performance Models and their Application to Directional Surveying Operations", SPE 18051 presented at the 1988 SPE Annual Conference, Houston. Published in SPEDE, December 1990.

Thorogood J.L., "Discussion of Evaluation of Directional Survey Error at Prudhoe Bay", SPE 18557, SPE Drilling Engineering, September 1988 pp 334-335.

Thorogood JL and Knott DR., "Surveying Techniques with a Solid State Magnetic Multishot Device". SPE 19030, presented at the SPE/IADC Drilling Conference, New Orleans, March 1989. Published in SPE Drilling Engineering, September 1990.

Thorogood JL, "Directional Survey Operations Management". SPE 19462, Journal of Petroleum Technology, Technology Today series, Dec 1989.

Adams AJ Parfitt SHL Reeves TB and Thorogood JL, "Casing System Risk Analysis using Structural Reliability", SPE/IADC 25693, presented at the 1993 SPE/IADC Drilling Conference.

Directional Drilling

Thorogood JL and Hogg TW.,"Performance Optimisation of Steerable Systems", ASME Energy Resources Technology Conference, New Orleans, January 1990.

Thorogood JL. and Sawaryn SJ.,"The Travelling Cylinder - A Practical Tool for Collision Avoidance", SPE 19989, presented at the 1990 SPE/IADC Drilling Conference, Houston. Published in SPEDE, March 1991.

Thorogood JL, Tourney FG, Crawley FK, Woo G, "Quantitative Risk Assessment of Subsurface Well Collisions", SPE 20908, Presented at the European Petroleum Conference, The Hague, October, 1990.

Thorogood JL, Hogg TW and Williamson HS, "Application of Risk Analysis Methods to Subsurface Well Collisions". SPE Drilling Engineering, December 1991, Vol 6 No 4, pp 299-304

Banks SM, Hogg TW and Thorogood JL, "Increasing Extended Reach Capabilities through Wellbore Profile Optimisation". SPE/IADC 23850, presented at the 1992 SPE/IADC Drilling Conference.

Sawaryn, SJ & Thorogood JL: "A Compendium of Directional Calculations Based on the Minimum Curvature Method", SPE Annual Technical Conference and Exhibition, Denver, Colorado, 5-8 October, 2003. Peer reviewed version in SPE Drilling and Completion March 2005. SPE 84246

Well Control - shallow gas

Crawley F.K. and Thorogood J.L., "Single Vent Line Design Selected for Diverter System", Oil and Gas Journal, Sept. 14 1987, Vol 85 No 37, pp 43-51.

Thorogood JL and Crawley FK., "Design and Operation of a Single Vent Diverter System", Trans I Chem E, Vol 68, Part B, May 1990, pp94-100.

Murray SJ, Williamson MD, Gilham S and Thorogood, JL, "Well Design for Shallow Gas", SPE/IADC 29343, SPE/IADC Drilling Conference, Amsterdam, 28 Feb 2 March 1995.

General Well Engineering

Thorogood J.L., "A Mathematical Model for Analysing Drilling Performance and Estimating Well Times", SPE 16524, Presented at Offshore Europe, Aberdeen, September 1987.

Whelehan OP, Thorogood JL, "An Automated System for Predicting Drilling Performance", SPE 27487, IADC/SPE Drilling Conference, Dallas, 15-18th February, 1994.

Fear MJ, Thorogood JL, Whelehan OP, Williamson HS, "Optimisation of Rock-Bit Life Based on Bearing Failure Criteria", SPE/IADC 21929, presented at the 1991 SPE/IADC Drilling Conference, Amsterdam. Published in SPEDE, June 1992.