Meet Rawwater At The SPE International Conference On Oilfield Chemistry

8 - 9 April 2019, Moody Gardens Hotel and Convention Center, Galveston, Texas

We're looking forward to sharing our knowledge of oilfield souring and treatment efficacies at the SPE International Conference on Oilfield Chemistry, from 8 - 9 April 2019. To meet with us, please email info@rawwater.com

Until only recently, investigations into oilfield microbiological souring relied on simple sand and seawater 'bottle tests' or 'up-flow' sand packs subjected to atmospheric pressure. Such tests, however, could not be used to draw accurate comparisons with actual downhole field conditions and biological activity, and could lead to inadequate or even unnecessary chemical dosing regimes.

The reliability of testing changed significantly, however, when we developed a pressurised bioreactor programme to accurately simulate the chemical and physical conditions of an oilfield reservoir environment. Today, we operate what is widely considered to be the world's most advanced pressurised bioreactor facility to study microbiological souring, souring control and enhanced oil recovery under a wide range of operating conditions and injection chemistries. We are also developing new bioreactor technologies to replicate the pressures, temperatures and chemistry associated with shale gas extraction.

Bioreactor Laboratory Our UK-based microbiological souring research suite contains more than 50 pressurised bioreactors – specially constructed corrosion-resistant columns that are filled with sand, seawater and crude, inoculated with oilfield bacteria, and then subjected to the same pressures and temperatures as found in the reservoir environment. Testing pressures range from atmospheric pressure to 12,000psig, with testing temperatures ranging from 5°C to just below the boiling point of water.

To establish if, when, and to what level an oilfield will sour, data from our pressurised bioreactor studies is entered into our DynamicTVS© (TVS = Thermal Viability Shell) predictive oilfield souring tool. Developed over many years, DynamicTVS© can forecast a reservoir's propensity to sour in advance of well completion, allowing good time for cost-effective remedial strategies to be put in place.

About our pressurised bioreactor programme

Generating high levels of interest from oil majors and chemical service companies, our pressurised bioreactor research programme commenced in 2006. The programme was instrumental in the birth of the Seriatim series of work into oilfield souring, with $10 million in funding being set aside for us to establish a pressurised bioreactor dataset. To-date, we have accrued more than 400 bioreactor years' worth of oilfield souring data, with information relevant to oil reservoirs across the globe. Our data is truly unique in that it covers the complete range of operating conditions, including accurate chemistries at pressure and temperature.