Well Control – shallow gas
A Systems Approach to Well Control Barrier Management during Drilling Operations
Thorogood JL, SPE-184669-MS, SPE/IADC Drilling Conference, 14-16th March 2017, The Hague, The Netherlands
Single Vent Line Design Selected for Diverter System
Crawley F.K. and Thorogood J.L, Oil and Gas Journal, Sept. 14 1987, Vol 85 No 37, pp 43-51.
Design and Operation of a Single Vent Diverter System
Thorogood JL and Crawley FK., Trans I Chem E, Vol 68, Part B, May 1990, pp94-100.
Well Design for Shallow Gas
Murray SJ, Williamson MD, Gilham S and Thorogood, JL, SPE/IADC 29343, SPE/IADC Drilling Conference, Amsterdam, 28 Feb 2 March 1995.