Downs, J.D.:"Time for a Change", Oilfield Technology magazine, April 2015

 

 

Olsvik, G., Howard, S. and Downs, J.D.:” The Long-Term Production Performance of Deep HPHT Gas Condensate Fields Developed Using Formate Brines”, SPE 165151, 2013.

 

 

Kaminski, L., Downs, J.D. and Howard, S.K.:” Clearly Cloudy – Finding a Clouding Glycol System for Formate Brines”, poster presentation to 20th SPE Bergen One Day Seminar, 2103.

 

 

Kaminski, L., Howard, S.K. and Downs, J.D.:” Clearly Different”, Oilfield Technology magazine, July 2012.

 

 

Downs, J.D: ”Life Without Barite: Ten Years of Drilling Deep HPHT Gas Wells with Cesium Formate Brine”, SPE 145562, 2011

 

 

Howard, S. and Downs, J.D.: “A Novel Approach”, Oilfield Technology magazine, June 2011

 

Howard, S. and Downs, J.D.: Osmotic Strength”, Oil & Gas Technology Magazine, Summer 2011

 

Downs, J.D.: “Leasing encourages sustainable chemical use”, Oil & Gas Technology magazine, Winter 2010

 

 

Gilbert Y.M. and Downs, J.D.: “Towards sustainable chemical use through chemical leasing”, SPE 136708, 2010. 

     

 

Downs, J.D, Turner, J.B. and Howard, S.: “A Well Constructed Chemical”, Oilfield Technology magazine, September 2010

 

 

Downs, J.D.: “A Review of the Impact of the use of Formate Brines on the Economics of Deep Gas Field Development Projects.” SPE 130376, January 2010.

 

 

Downs, J.D.: "Observations on Gas Permeability Measurements under HPHT Conditions in Core Materials Exposed to Cesium Formate Brine." SPE 121649-PP, May 2009.

 

 

Howard, S. and Downs, J.D.: “Formate Brines for HPHT Well Control – New Insight into the Role and Importance of the Carbonate/Bicarbonate Additive Package.” SPE 121550, April 2009.

 

 

Roy, A., Twynam, A., Parke, J., Morrison, A., Downs, J.: “Perforating Techniques and Use of Cesium Formate Kill Pills to Maximize Productivity in HP/HT Gas Wells and Minimize HSE Risks.” OTC 19242, May 2008.

 

 

Howard, S. and Downs, J.D.: “Formate Brines Effective in HP/HT Wells”, American Oil & Gas Reporter, August 2008.

 

 

Howard, S.K. and Downs, J.D.: “Hydrothermal Chemistry of Formate Brines and Its Impact on Corrosion in HPHT Wells”, SPE 114111, May 2008.

 

 

Howard, S. and Downs, J.D.: “Formate brines in extreme HPHT well construction operations – Do they have limitations?”, AADE-08-DF-HO-11, April 2008.

 

 

Gilbert, Y., Nordone, A., Downs, J., Vaahtera, A., Ravio, T.: “REACH and the HSE Case for Formate Brines”, IPTC 11222-PP, December 2007.

 

 

Brangetto, M., Pasturel, C., Gregoire, M., Ligertwood, J., Downs, J.D., Harris, M. and Turner, J.B.: “A review of the performance of cesium formate brines as workover and suspension fluids in the World’s largest HPHT field development”, IADC World Drilling Conference, Paris, June 2007 (published in Drilling Contractor, May/June 2007)

 

 

Downs, J.D., Harris, M., Benton, W., Howard, S.K., Billingham, M.: “New insights into the potential for environmental cracking of corrosion resistant alloys in high-density formate and bromide well completion brines at high temperature,” NACE 07097, 2007.

 

 

Berg, P.C., Pedersen, E.S., Lauritsen, Behjat, N., Hagerup-Jenssen, S., Howard, S., Olsvik, G., Downs, J.D., Harris, M., Turner, J.: “Drilling, Completion, and Openhole Formation Evaluation of High-Angle Wells in High-Density Cesium Formate Brine: The Kvitebjørn Experience, 2004-2006”, SPE 105733, February 2007.

 

 

Downs, J.D., Leth-Olsen, H.: “Effect of Environmental Contamination on the Susceptibility of Corrosion Resistant Alloys to Stress Corrosion Cracking in High-Density Completion Brines”, SPE 100438, May 2006.

 

 

Downs, J.D., Blaszcynski, M., Turner, J., Harris, M.: “Drilling and Completing Difficult HP/HT Wells With the Aid of Cesium Formate Brines – A Performance Review”, SPE 99068, February 2006.

 

 

Downs, J.D., Howard, S.K., Carnegie, A.: “Improving Hydrocarbon Production Rates Through the Use of Formate Fluids – A Review”, SPE 97694, December 2005.

 

 

Leth-Olsen, H., Downs, J.D., Benton, W., Carnegie, A.: “Inhibition of CO2 Corrosion by Formate Fluids in High Temperature Environments”, Chemistry in the Oil Industry IX, EOSCA, Royal Society of Chemistry, Manchester, November 2005.

 

 

Howard, S.K., Downs, J.D.: “Formate Fluids Optimize Production Rates”, AADE-05-NTCE-05, April 2005.

 

 

Benton, W., Harris, M., Magri, N., Downs, J., and Braaten, J.: “Chemistry of Formate Based Fluids”, SPE 80212, 2003.

 

 

Byrne, M., Paty, I., Downs, J.D., and Turner, J.: “Formate Brines: A Comprehensive Evaluation of their Formation Damage Control Properties under Realistic Reservoir Conditions”, SPE 73766, 2002.

 

 

Downs, J.D.: “Advances in the Development of Ecological Drilling Fluids”, 10th IBC Annual Conference, March 2002.

 

 

Bungert, D., Maikranz, S. Sundermann, R., Downs, J., Benton, and W., Dick, M.A.: “The Evolution and Application of Formate Brines in High Temperature/Pressure Operations”, SPE 59191, 2000.

 

 

Downs, J.D, Killie, S., Whale, G.F., and Inglesfield, C.: Development of Environmentally Benign Formate-Based Drilling and Completion Fluids”, SPE 27143, 1994.

 

 

Downs, J.D.: “Formate Brines: Novel Drilling and Completion Fluids for Demanding Environments”, SPE 25177, 1993.

 

 

Downs, J.D.: “Formate Brines: New Solutions to Deep Slim Hole Drilling Fluid Design Problems”, SPE 24973, 1992.

 

 

Downs, J.D.: “High Temperature Stabilisation of Xanthan in Drilling Fluids by the Use of Formate Salts,” in Physical Chemistry of Colloids and Interfaces in Oil Production, Editions TechNet, Paris, 1991.

 

 

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