Home Products and services Resources News About us Contact Formate publications Downs, J. D. and Fleming, N. (2020, February). Profiling the Production Performance of Five HPHT Gas Condensate Wells Drilled and Completed with High-Density Cesium Formate Fluids in the Brent Group Formations of the Kvitebjørn Field. SPE-199286-MS. doi.org/10.2118/199286-MS. Tahirov, T., El-Wakeel, W., Mohiuldin, G., Whaley, K., Jackson, P., Olinger, M. … and Elshafaie, I. (2019, April 26). Sand Control Completions for Raven Field in Egypt. Proc., Offshore Technology Conference, Houston, Texas, USA. OTC-29549-MS. doi.org/10.4043/29549-MS. Howard, S., Leon, S., Løchen, J., Abrahams, B. and van Oort, E. (April 2019). Formate Fluid Design, Testing, and modeling for Slim-Hole and Coiled Tubing Operations. AADE-19-NTCE-111. Gul, S., Johnson, M. D., Karimi Vajargah, A., Ma, Z., Hoxha, B. B. and van Oort, E. (2019, March 4). A Data Driven Approach to Predict Frictional Pressure Losses in Polymer-Based Fluids. Society of Petroleum Engineers. Proc., SPE/IADC International Drilling Conference and Exhibition, The Hague, The Netherlands. SPE-194132-MS. doi.org/10.2118/194132-MS. Gao, C. H. (2019). A Survey of Field Experiences With Formate Drilling Fluid. SPE Drill & Completion 34 (2019): p. 450–457. doi.org/10.2118/195699-PA. Yang, Z., Du, C., Li, W., Zhang, L., Wang, Z., Li, D. and Wang, X. (2019, March). Effects of pH Buffer on the Corrosion Behavior of C110 Tubing in Formate Completion Fluid With the Mix of CO2 at High Temperature. Proc., Corrosion 2019, Nashville, Tennessee, USA. Van Oort, E., Pasturel, C., Bryla, J. and Ditlevsen, F. (2019, March 1). Improved Wellbore Stability in North Sea Lark and Horda Shales Through Shale/Fluid-Compatibility Optimization.SPE-184661-PA. doi.org/10.2118/184661-PA. Sigarev, S., Kustaryov, D., Prokhorov, A., Nikitin, P., Samoylov, M. and Koltypin, O. (2018, October 15). Bazhenovskaya Suite of Severo-Demyanskoe Field: Multi Fracturing Well Completion – Story of Success. Proc., SPE Russian Petroleum Technology Conference, Moscow, Russia. SPE-19174-MS. doi.org/10.2118/191724-18RPTC-MS. Ryabtsev, P. L., Khomutov, A. Y. and Korolev, A. V. (2018, October 15). The First Experience of Formate Based Drilling Fluids Application in Russia. Proc., SPE Russian Petroleum Technology Conference, Moscow, Russia. SPE-191503-MS. doi.org/10.2118/191503-18RPTC-MS. Løchen, J. and Leon, S. (2018, June). Total E&P Norge benefits from new fluid strategy for drilling and completions. World Oil. Oort, E. van. (2018, March 6). How to Test for Compatibility Between Fluids and Shales. Proc., IADC/SPE Drilling Conference and Exhibition, Fort Worth, Texas, USA. SPE-189633-MS. doi.org/10.2118/189633-MS. Howard, S. (2018, February). Answering Borehole Stability Challenges In Difficult Shale. Hart’s E&P. Jøntvedt, E., Fjeldheim, M., Løchen, J., Howard, S., Leon, S., Busengdal, C. and Richard Gyland, K. (2018, February 7). Deployment of Cesium Formate Drill-In and Openhole Completion Fluid in the Martin Linge High Pressure, High Permeability Gas Reservoir Enhances Total’s Operational Efficiency and Radically Improves Well Performance. Proc., SPE International Conference and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA. SPE-189550-MS. doi.org/10.2118/189550-MS. Downs, J. and Fleming, N. (2018, February 7). Evaluating Formation Damage Predictions Drawn from HPHT Core Flooding Tests on Brent Group Sandstone Reservoir Cores with Heavy Formate Drill-in Fluids: A Case Study from the Huldra Field. Proc., SPE International Conference and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA. SPE-189530-MS. doi.org/10.2118/189530-MS. Downs, J. D., Howard, S. K. and Anderson, Z. Q. (2018, February 7). Rates of Permeability Restoration in Tight Gas-Bearing Sandstone Cores Following Long-Duration Exposure to Cesium Formate Fluids under HPHT Conditions – A Detailed Laboratory Investigation. Proc., SPE International Conference and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA. SPE-189502-MS. doi.org/10.2118/189502-MS. van Oort, E. and Howard, S. (2017, April 11–12). Shale Stabilization by High-Salinity Formate Drilling Fluids. Proc., 2017 AADE National Technical Conference and Exhibition, Houston, Texas, USA. AADE-17-NTCE-111. Howard, S., Anderson, Z. and van Oort, E. (2017, April 11–12). HPHT Formation Fluid Loss Control without Bridging Particles. Proc., 2017 AADE National Technical Conference and Exhibition, Houston, Texas, USA. AADE-17-NTCE-110. Vajargah, A. K., Sullivan, G., Johnson, M. and van Oort, E. (2017, April). Transitional and Turbulent Flow of Drilling Fluids in Pipes: An Experimental Investigation. AADE-17-NTCE-042. Oort, E. van, Pasturel, C., Bryla, J. and Ditlevsen, F. (2017, March 14). Improved Wellbore Stability in Tor/Ekofisk Wells through Shale-Fluid Compatibility Optimization. Proc., SPE/IADC Drilling Conference and Exhibition, The Hague, The Netherlands. SPE-184661-MS. doi.org/10.2118/184661-MS. Rinde, T., Killie, R., Howard, S. K., Solli, L. and Lillelokken, N. (2016, April 20). Impact of New and Ultra-High Density Kill Fluids on Challenging Well-Kill Operations. SPE-180047-MS. Proc., SPE Bergen One Day Seminar, Bergen, Norway. doi.org/10.2118/180047-MS. Moroni, L. P., Davidson, M., Lam, J., Goonoo, A., Twycross, J. and Howard, S. K. (2016, March 22). Heavy-Duty Cleanup: Caesium Formate-Based Microemulsions Make Light Work of a Tough Job. Proc., Offshore Technology Conference Asia, Kuala Lumpur, Malaysia. OTC-26474-MS. doi.org/10.4043/26474-MS. Howard, S. (2016, March). Effect of Stress Level on the SCC Behavior of Martensitic Stainless Steel during HT Exposure to Formate Brines. Proc., Corrosion 2016, Vancouver, Canada. NACE 2016–7613. Howard, S., Anderson, Z. and Parker, S. (2016, February 24). Solubility of Barium Sulfate in Formate Brines – New Insight into Solubility Levels and Reaction Mechanisms. Proc., SPE International Conference and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA. SPE-179021-MS. doi.org/10.2118/179021-MS. Fleming, N., Moland, L. G., Svanes, G., Watson, R., Green, J., Patey, I., … Howard, S. (2016, February). Formate Drilling & Completion Fluids: Evaluation of Potential Well Productivity Impact, Valemon. SPE-174217-PA. doi.org/10.2118/174217-PA. Howard, S. and Busengdal, C. (2016, January). Cesium/potassium Formate Fluids Are Clearly Faster Than OBM. HartEnergy: E&P. Howard, S., Kaminski, L. and Downs, J. (2015, June). Xanthan Stability in Formate Brines ­– Formulating Non-damaging Fluids for High Temperature Application. Proc., SPE European Formation Damage Conference and Exhibition, Budapest, Hungary. SPE-174228-MS. doi.org/10.2118/174228-MS. Howard, S. and Chrenowski, M. (2015, April). Formate Brines and their Crystallization Temperatures – New Insight into Fluid Behavior and Measuring Methology. Proc., SPE International Symposium on Oilfield Chemistry, The Woodlands, Texas, USA. SPE-173741-MS. doi.org/10.2118/173741-MS. Downs, J. (2015, April). Time for a Change. Oilfield Technology. Van Oort, E., Ahmad, M., Spencer, R. and Legacy, N. (2015, March). ROP Enhancement in Shales through Osmotic Processes. SPE/IADC-173138-MS. doi.org/10.2118/173138-MS. Howard, S. K. and Chrenowski, M. (2015, March). A Laboratory Evaluation of the Suitability of Cesium Acetate brines as Completion, Workover, Suspension, and Packer Fluids for Extreme/Ultra HPHT Wells – Results of an Extensive Corrosion Testing Program. NACE-2015-5501. Siemens, R. and Meyer, E. (2014, September). Using formate brine and water based drilling fluids to improve drilling performance. A case study in Pipestone. Encana Corporation, Calgary. Howard, S. and Chrenowski, M. (2014, March). Corrosion in Formate Brines ­– 20 Years of Laboratory Testing and Field Experience. OTC-24983-MS. Kaarigstad, H., Strachan, C., Fjellstad, V., Gyland, K. and Filbrandt, J. D. (2014, February). Qualification of Gravel Packing in HP/HT Wells. Proc., SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA. SPE-168210-MS. doi.org/10.2118/168210-MS. Han, L., Hicking, S. H., Twycross, J., El-Jamali, Patey, I. and Green, J. (2014, February). Design Considerations and Qualification Testing of High Density Oil Based Completion Fluids for an HPHT Gas Development. SPE-168207-MS. Proc., SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA. doi.org/10.2118/168207-MS. Carnegie, A. W., Omar, M., Colman, G. and Supriyono, H. (2013, October). Experience with Formate Fluids For Managed Pressure Drilling and Completion of Subsea Carbonate Gas Development Wells. SPE-165761-MS. doi.org/10.2118/165761-MS. Olsvik, G., Howard, S. and Downs, J. (2013, June). The Long-Term Production Performance of Deep HPHT Gas Condensate Fields Developed Using Formate Brines. SPE-165151-MS. doi.org/10.2118/165151-MS. Kaminski, L., Downs, J. D. and Howard, S. K. (2013, April). Clearly Cloudy – Finding a Clouding Glycol System for Formate Brines. Poster presentation at the 20th SPE Bergen One Day Seminar, Bergen, Norway. Setiawan, T. B., Bin Omar, M. M., Bin Sulaiman, M. Z., Bin Musa, M. Z., Fadzli, M., Nesan, T. P., Wuest, C. H., Shaun, J., Toralde, S. and Sridharan, P. A. (2013, April). Managed Pressure Drilling With Solids-Free Drilling Fluid Provides Cost-Efficient Drilling Solution for Subsea Carbonate Gas Development Wells. Proc., IADC/SPE Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, San Antonio, Texas, USA. SPE-164573-MS. doi.org/10.2118/164573-MS. Mahadi, K. A., Izzat, M., Nizam, M., Ogbonna, C. and Jadid, M. B. (2013, March). First Subsea Completion by an Operator in KN Field, Offshore Malaysia. IPTC-16697-MS. doi.org/10.2523/IPTC-16697-MS. Valizadeh, M. and Nasiri, A. R. (2012). Improving Thermal Stability in Formate Fluids for Drilling High Temperature Shales. Journal of Petroleum Science and Technology. Vol. 2, No. 1, p. 61–64. Kaminski, L., Howard, S. and Downs, J. (2012, July). Clearly Different. Oilfield Technology Magazine. Grosse-Sommer, A., Sava, X. and Gilbert, Y. (2012, April 2). Applying Life Cycle Assessment to Evaluate the Sustainability of Completion Fluids. Proc., SPE Middle East Health, Safety, Security, and Environment Conference and Exhibition, Abu Dhabi, UAE. SPE-150654-MS. doi.org/10.2118/150654-MS. Downs, J. D. (2011, November 11). Exposure to Phosphate-based Completion Brine under HPHT Laboratory Conditions Causes Significant Gas Permeability Reduction in Sandstone Cores. Proc., International Petroleum Technology Conference, Bangkok, Thailand. IPTC-14285-MS. doi.org/10.2523/IPTC-14285-MS. Al-Ghazal, M. A., Al-Sagr, A. M. and Al-Driweesh, S. M. (2011, autumn). Evaluation of Multistage Fracturing Completion Technologies as Deployed in the Southern Area gas Fields of Saudi Arabia. The Saudi Aramco Journal of Technology. Cooper, P., Galford, J., Goodyear, G., Moake, G. L. and Truax, J. (2011, November). Borehole and invasion Effects of Formate-Based Mud System on LWD Density, Neutron, PE, and Gamma-ray Logs. Proc., SPE Annual Technical Conference and Exhibition, Denver, Colorado, USA. SPE-147297-MS. doi.org/10.2118/147297-MS. Downs, J. (2011, October 24). Life Without barite: Ten Years of Drilling Deep HPHT Gas Wells With Cesium Formate brine. Proc., SPE/IADC Middle East Drilling Technology Conference and Exhibition, Muscat, Oman. SPE-145562-MS. doi.org/10.2118/145562-MS. Zwaag, C. H., Svanes, G. S., Schiefloe, B. S., Ibragimova, Z., Austmo Moeller, K., Vikanes, H., Lund Smørdal, C., Pederesen, G. E. and Bringsjord, K. L. (2011, June 7). Reduced Solids Oil Based Completion Fluid for horizontal HPHT Openhole Completions. Proc., SPE European Formation Damage Conference, Noordwijk, The Netherlands. SPE-144163-MS. doi.org/10.2118/144163-MS. Fitnawan, E. A. Y., Hovland, S., Schiefloe, B. S. and Møller, K. A. (2011, May 2). Successful Design and Practices Shaping Up a Robust HPHT Well Completion Concept for Subsea-Horizontal Wells. Proc., Offshore Technology Conference, Houston, Texas, USA. OTC-21476-MS. doi.org/10.4043/21476-MS. Richmond, M., Hutton, A., Davidson, M., Howard, S., Frost, B. Leon, S. and Jaspars, M. (2011, March 1). Cutting the Cost of HP/HT Cleanups: Novel High Density Cleanup Package Enables Brine Reclamation and Reduces Costs. Proc., SPE/IADC Drilling Conference and Exhibition, Amsterdam, The Netherlands. SPE-140117-MS. doi.org/10.2118/140117-MS. Downs, J. D. (2010, winter). Leasing encourages sustainable chemical use. Oil & Gas Technology magazine. Downs, J. D, Turner, J. B. and Howard, S. (2010, September). A Well Constructed Chemical. Oilfield Technology magazine. Salgaonkar, L., Ali, R., Danait, A. and Salahudin, S. (2010, June 8). Strategies for Removal of Formate Brine-Based Drill in Fluid (DIF) Filtercake in Gravel-Packed Completions: A Laboratory Evaluation. SPE-130199-MS. doi.org/10.2118/130199-MS. Proc., International Oil and Gas Conference and Exhibition, Beijing, China. Downs, J. D. (2010, January). A Review of the Impact of the use of Formate Brines on the Economics of Deep Gas Field Development Projects. SPE Deep Gas Conference and Exhibition, Manama, Bahrain. SPE-130376-MS. doi.org/10.2118/130376-MS. King, L. and Benton, W. (2009, August). Cracking Protection. Oilfield Technology magazine. Downs, J. D. (2009, May 27). Observations on Gas Permeability Measurements under HPHT Conditions in Core Materials Exposed to Cesium Formate Brine. Proc., 8th European Formation Damage Conference, Scheveningen, The Netherlands. SPE-121649-MS. doi.org/10.2118/121649-MS. Ginest, N., Al-Sagr, A., Al-Malki, B., Al-Khawajah, M., Jones, C., Morgan, Q. and Parry, K. (2009, May 27). A Successful Expandable Sand Screen Case History in a Deep, Corrosive Gas Well Application. Proc., 8th European Formation Damage Conference, Scheveningen, The Netherlands. SPE-122847-MS. doi.org/10.2118/122847-MS. Simpson, M., Al-Reda, S., Foreman, D., Guzman, J. and Al-Fawzy, M. (2009, May 4). Application and recycling of Sodium and Potassium Formate Brine Drilling Fluids for Ghawar HT Gas Wells. Proc., Offshore Technology Conference, Houston, Texas, USA. OTC-19801. doi.org/10.4043/19801-MS. Howard, S. and Downs, J. D. (2009, April). Formate Brines for HPHT Well Control – New Insight into the Role and Importance of the Carbonate/Bicarbonate Additive Package. Proc., SPE International Symposium on Oilfield Chemistry, The Woodlands, Texas, USA. SPE-121550-MS. doi.org/10.2118/121550-MS. Denney, D. (2009, April). Perforating Techniques and Use of Cesium Formate Kill Pills to Maximize Productivity in HP/HT Gas Wells and Minimize HSE Risks. Journal of Petroleum Technology, vol. 61, no. 4, p. 70–72. doi.org/10.2118/0409-0070-JPT. Gilbert, Y., Kumpulainen, A. and Syrjaner, M. (2009, March 23). New Tool Assists Informed Purchasing Decisions Based on Overall Cost and HSE Risk Potential of Well Construction Fluids. Proc., SPE Americas E&P Environmental and Safety Conference, San Antonio, Texas, USA. SPE-120488-MS. doi.org/10.2118/120488-MS. Calderon, A., Aragão, A. F., Chagas, C. M., Guimarães, C. and Barbedo, R. (2008, December 3). The Challenges and Advantages of Openhole Completions in the Manati Gas Field. Proc., International Petroleum Technology Conference, Kuala Lumpur, Malaysia. IPTC-12364-MS. doi.org/10.2523/IPTC-12364-MS. Qureshi, A., Ali, M. and Preining, P. (2008, October 20). Pushing the Limits: Improving Drilling Performance of High Temperature Gas Wells in Thar Desert in Sindh, Pakistan. Proc., SPE Asia Pacific Oil and Gas Conference and Exhibition, Perth, Australia. SPE-115319-MS. doi.org/10.2118/115319-MS. Ezell, R. and Harrison, D. J. (2008, September 21). Design of Improved High Density, Thermally Stable Drill-In Fluid for HTHP Applications. Proc., SPE Annual Technical Conference and Exhibition, Denver, Colorado, USA. SPE-115537-MS. doi.org/10.2118/115537-MS. Howard, S. and Downs, J. D. (2008, August). Formate Brines Effective in HP/HT Wells. The American Oil & Gas Reporter. Howard, S. K. and Downs, J. D. (2008, May 27). The Hydrothermal Chemistry of Formate Brines and Its Impact on Corrosion in HPHT Wells. Proc., SPE International Oilfield Corrosion Conference, Aberdeen, UK. SPE-114111-MS. doi.org/10.2118/114111-MS. Dick, M. A., Van Dike, E. J., McRae, J. D., Bump, D. M., Aldea, C. and Phillips, G.B. (2008, May 5). Changing Reservoir Drill-In Fluids and Completion Strategies to Drill Sensitive Shale Reservoirs in High-Angle Wells in Bohai Bay. Proc., Offshore Technology Conference. OTC-19320-MS. doi.org/10.4043/19320-MS. Roy, A., Twynam, A., Parke, J., Morrison, A. and Downs, J. (2008, May 5). An Evaluation of Perforating Techniques and Use of Caesium Formate Kill Pills to Maximise Productivity in HPHT Gas Wells and Minimise HSE Risks. Proc., Offshore Technology Conference, Houston, Texas, USA. OTC-19242-MS. doi.org/10.4043/19242-MS. Gilbert, Y. Kumpulainen, A., Pessala, P. and Ravio, T. (2008, April 8–9). HSE Risk Monetization and Well Construction Fluids: Presenting a Method for Comparing the Costs Associated with Fluid-related HSE Risk and its Consequences. Proc., AADE Fluids Conference and Exhibition, Houston, Texas, USA. AADE-08-DF-HO-30. Howard, S. and Downs, J. D. (2008, April 8­–9). Formate brines in extreme HPHT well construction operations – Do they have limitations? Proc., AADE Fluids Conference and Exhibition, Houston, Texas, USA. AADE-08-DF-HO-11. Gordon, W., Pittman, I., Rydlewicz, M. and Innes, R. (2008, April 1). HP/HT WCCL Technology Aids Successful Deployment Perforating Operations on the Glenelg Field. Proc., SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, The Woodlands, Texas, USA. SPE-113835-MS. doi.org/10.2118/113835-MS. Black, A. D., Bland, R. G., Curry, D. A., Ledgerwood, L. W., Robertson, H. A., Judzis, A., Prasad, U. and Grant, T. (2008, March 4). Optimization of Deep Drilling Performance With Improvements in Drill Bit and Drilling Fluid Design. Proc., IADC/SPE Drilling Conference, Orlando, Florida, USA. IADC/SPE-112731-MS. doi.org/10.2118/112731-MS. Downs, J. (2008, March). Seven years of successfully constructing difficult North Sea HPHT wells using cesium formate brine. World Oil. Syltøy, S., Eide, S. E., Torvund, S., Berg, P. C, Larsen, T., Fjeldberg, H., Bjørkevoll, K. S., McCaskill, J., Prebensen, O. I. and Low, E. (2008, January 28). Highly Advanced Multitechnical MPD Concept Extends Achievable HPHT Targets in the North Sea. Proc., SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, Abu Dhabi, UAE. SPE-114484-MS. doi.org/10.2118/114484-MS. Downs, J., Wang, J. and Carnegie, A. (2008, January 17–18). Engineering a Revolution in Drilling and Completion Fluid Technology – The Development and Deployment of Cesium Formate Brine. Proc., Asia Pacific Oil and Gas E&P Conference, Beijing, China. Gilbert, Y., Nordone, A., Downs, J., Vaahtera, A. and Ravio, T. (2007, December 4). REACH and the HSE Case for Formate Brines. Proc., International Petroleum Technology Conference, Dubai, U.A.E. IPTC-11222-MS. doi.org/10.2523/IPTC-11222-MS. Gilbert, Y., Vaahtera, A. and Ravio, T. (2007, November 11). Formate Fluids and Environmental Regulations: A Global View of Benefits and Challenges. Proc., SPE Annual Technical Conference and Exhibition, Anaheim, California, USA. SPE-110891-MS. doi.org/10.2118/110891-MS. Downs, J. D. (2007, November 19–20). Formate brines as high-performance drilling and completion fluids for challenging HPHT wells – What have we learnt from a decade of field use? Proc., HPHT conference, Aberdeen, UK. Omland, T. H., Dahl, B., Saasen, A., Taugbøl, K. and Amundsen, P. A. (2007, October 30). Optimization of Solids Control Opens Up Opportunities for Drilling of Depleted Reservoirs. Proc., Asia Pacific Oil and Gas Conference and Exhibition, Jakarta, Indonesia. SPE-110544-MS. doi.org/10.2118/110544-MS. Downs, J. D. (2007, September 10–13). Formate brines as non-damaging drill-in and completion fluids for HPHT wells – what have we learnt from the first 100 jobs? Proc., IQPC Formation Damage Control Conference, Kuala Lumpur, Malaysia. Brown A., Farrow, C. and Cowie, J. (2007, September 4). The Rhum Field: A Successful HP/HT Gas Subsea Development (Case History). Proc., SPE Offshore Europe Oil and Gas Conference and Exhibition, Aberdeen, UK. SPE-108942-MS. doi.org/10.2118/108942-MS. Brangetto, M., Pasturel, C., Gregoire, M., Ligertwood, J., Downs, J. D., Harris, M. and Turner, J. B. (2007, June 13–14). A review of the performance of cesium formate brines as workover and suspension fluids in the World’s largest HPHT field development. Proc., IADC World Drilling Conference, Paris, France. Brangetto, M. et al. (2007, May/June). Caesium formate brines used as workover, suspension fluids in HPHT field development. Drilling Contractor. Downs, J. D., Harris, M., Benton, W., Howard, S. K. and Billingham, M. (2007, March 11). New insights into the potential for environmental cracking of corrosion resistant alloys in high-density formate and bromide well completion brines at high temperature. Proc., Corrosion 2007, Nashville, Tennessee, USA. NACE 07097. Downs, J. D. and Carnegie, A. (2007, February 27–­28). Formate brines as high-performance drilling and completion fluids for challenging HPHT wells – What have we learnt from a decade of field use? Proc., IQPC Asia Pacific Drilling Summit, Bangkok, Thailand. Berg, P. C., Pedersen, E. S., Lauritsen, Behjat, N., Hagerup-Jenssen, S., Howard, S., Olsvik, G., Downs, J. D., Harris, M. and Turner, J. (2007, February 20–22). Drilling, Completion, and Openhole Formation Evaluation of High-Angle Wells in High-Density Cesium Formate Brine: The Kvitebjørn Experience, 2004–2006. Proc., SPE/IADC Drilling Conference, Amsterdam, The Netherlands. SPE-105733-MS. doi.org/10.2118/105733-MS. Al-Bazali, T. M., Zhang, J., Chenevert, M. E. and Sharma, M. M. (2006, December 5). Factors Controlling the Membrane Efficiency of Shales When Interacting With Water-Based and Oil-Based Muds. Proc., International Oil & Gas Conference and Exhibition, Beijing, China. SPE-100735-MS. doi.org/10.2118/100735-MS. Pedersen, B. K., Pedersen, E. S., Morriss, S., Constable, M. V., Vissapragada, B., Sibbit, A., Stoller, C., Almaguer, J., Evans, M., Shray, F., Grau, E., Fordham, E., Minh, C. C., Scott, H. and McKeon, D. (2006, September 24). Understanding the Effects of Cesium/Potassium Formate Fluid on Well Log Response – A Case Study of the Kristin and Kvitebjørn Fields, Offshore Norway. Proc., SPE Annual Technical Conference and Exhibition, San Antonio, Texas, USA. SPE-103067-MS. doi.org/10.2118/103067-MS. Hansen, S. A., Breivik, D. H., Gjønnes, M., Svanes, K., Vujovic, M., Svela, P. E. and Sørheim, O. I. (2006, September 24). Drilling Fluids in an HPHT Reservoir: Experiences with three Different Systems on the Kristin Field Development. Proc., SPE Annual Technical Conference and Exhibition, San Antonio, Texas, USA. SPE-103336-MS. doi.org/10.2118/103336-MS. Fuh, G. F., Ramshaw, I., Freedman, K. and Abdelmalek, N. (2006, September 24). Use of Reservoir Formation Failure and Sanding Prediction Analysis for Viable Well-Construction and Completion-Design Options. Proc., SPE Annual Technical Conference and Exhibition, San Antonio, Texas, USA. SPE-103244-MS. doi.org/10.2118/103244-MS. Downs, J. D. and Leth-Olsen, H. (2006, May 30). Effect of Environmental Contamination on the Susceptibility of Corrosion Resistant Alloys to Stress Corrosion Cracking in High-Density Completion Brines. Proc., SPE International Oilfield Corrosion Symposium, Aberdeen, UK. SPE-100438-MS. doi.org/10.2118/100438-MS. Downs, J. D., Blaszcynski, M., Turner, J. and Harris, M. (2006, February 21). Drilling and Completing Difficult HP/HT Wells With the Aid of Cesium Formate Brines – A Performance Review. Proc., IADC/SPE Drilling Conference, Miami, Florida, USA. SPE-99068-MS. doi.org/10.2118/99068-MS. Oswald, R. J. (2006, February 15). Taking Nondamaging Fluids to New Extremes: Formate-Based Drilling Fluids for High-Temperature Reservoirs in Pakistan. Proc., SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA. SPE-98391-MS. doi.org/10.2118/98391-MS. Bradshaw, R. J. et al. (2006, February 15). Formate-Based Drilling Fluid Resolves High-Temperature Challenges in the Natuna Sea. SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA. SPE-98347-MS. doi.org/10.2118/98347-MS. Downs, J. D., Howard, S. K. and Carnegie, A. (2005, December 5). Improving Hydrocarbon Production Rates Through the Use of Formate Fluids – A Review. Proc., SPE International Improved Oil Recovery Conference in Asia Pacific, Kuala Lumpur, Malaysia. SPE-97694-MS. doi.org/10.2118/97694-MS. Leth-Olsen, H., Downs, J. D., Benton, W. and Carnegie, A. (2005, November). Inhibition of CO2 Corrosion by Formate Fluids in High Temperature Environments. Chemistry in the Oil Industry IX, EOSCA, Royal Society of Chemistry, Manchester, UK. Galford, J., Truax, J. and Moake, G. L. (2005, June 26–29). Borehole and Formation Invasion Effects of Formate-Based Mud Systems. Proc., SPWLA 46th Annual Logging Symposium. SPWLA-2005-LL. Gjønnes, M. and Myhre, I. G. (2005, June 20). High Angle HPHT Wells. Proc., SPE Latin American and Caribbean Petroleum Engineering Conference, Rio de Janeiro, Brazil. SPE-95478-MS. doi.org/10.2118/95478-MS. Lo Piccolo, E., Scoppio, L. and Nice, P. I. (2005, May 17). Corrosion and Environmental Cracking Evaluation of High Density Brines for Use in HPHT Fields. 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