Lessons Learned From Applications of a New Organic-Oil-Recovery Method That Activates Resident Microbes
- Robert Zahner (Venoco Incorporated) | Shane Tapper (Husky Energy) | Brian Marcotte (Titan Oil Recovery Incorporated) | Bradley R. Govreau (Titan Oil Recovery Incorporated)
- Document ID
- Society of Petroleum Engineers
- SPE Reservoir Evaluation & Engineering
- Publication Date
- December 2012
- Document Type
- Journal Paper
- 688 - 694
- 2012. Society of Petroleum Engineers
- 1.8 Formation Damage, 6.5.2 Water use, produced water discharge and disposal, 4.1.2 Separation and Treating, 5.4.10 Microbial Methods
- 2 in the last 30 days
- 623 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 5.00|
|SPE Non-Member Price:||USD 35.00|
Using a breakthrough process, which does not require microbes to be injected, more than 100 microbial enhanced-oil-recovery (MEOR) treatments were conducted from 2007 to the end of 2010 in oil- producing and water-injection wells in the United States and Canada. On average, these treatments increased oil production by 122%, with an 89% success rate. This paper reviews the MEOR process, reviews the results of the first 100+ treatments, and shares what has been learned from this work. Observations and conclusions include the following:
- Screening reservoirs is critical to success. Identifying reservoirs where appropriate microbes are present and oil is movable is the key.
- MEOR can be applied to a wide range of oil gravities. MEOR has been applied successfully to reservoirs with oil gravity as high as 41°API and as low as 16°API.
- When microbial growth is appropriately controlled, reservoir plugging or formation damage is no longer a risk.
- Microbes reside in extreme conditions and can be manipulated to perform valuable in-situ "work." MEOR has been applied successfully at reservoir temperatures as high as 200°F and salinities as high as 140,000 ppm total dissolved solids (TDS).
- MEOR can be applied successfully in dual-porosity reservoirs.
- A side benefit of applying MEOR is that it can reduce reservoir souring.
- An oil response is not always observed when treating producing wells.
MEOR can be applied to many more reservoirs than thought originally with little downside risk. This review of more than 100 MEOR well treatments expands the types of reservoirs in which MEOR can be applied successfully. Low-risk and economically attractive treatments can be accomplished when appropriate scientific analysis and laboratory screening are performed before treatments.
|File Size||714 KB||Number of Pages||7|
Brown, L.R., Vadie, A.A., and Stephens, J.O. 2000. Slowing ProductionDecline and Extending the Economic Life of an Oil Field: New MEOR Technology.Presented at the SPE/DOE Improved Oil Recovery Symposium, Tulsa, 3-5 April.SPE-59306-MS. http://dx.doi.org/10.2118/59306-MS.
Cusack, F., Brown, D.R., Costerton, J.W. et al. 1985. Field andLaboratory Studies of Microbial/Fines Plugging of Water Injection Wells:Mechanism, Diagnosis and Removal. Paper SPE 14880 available from SPE,Richardson, Texas.
Cusack, F., McKinley, V.L., Lappin-Scott, H.M. et al. 1987.Diagnosis and Removal of Microbial/Fines Plugging in Water Injection Wells.Presented at the SPE Annual Technical Conference and Exhibition, Dallas, 27-30September. SPE-16907-MS. http://dx.doi.org/10.2118/16907-MS.
Marcotte, B., Goveau, B.R., and Davis, C.P. 2009. MEORfinds oil where it has already been discovered. Hart Energy E&PMagazine (4 November 2009): 78-79.
Romero, C., Aubertin, F., Cassou, E. et al. 2009. Single-Well ChemicalTracer Tests (SWTT) experience in the Mature Handil Field: Evaluating Stakesbefore launching an EOR Project. Presented at the EAGE 15th European Symposiumon Improved Oil Recovery, Paris, 27-29 April.
Sheehy, A.J. 1990. Field Studies of Microbial EOR. Presented atthe SPE/DOE Enhanced Oil Recovery Symposium, Tulsa, 22-25 April. SPE-20254-MS.http://dx.doi.org/10.2118/20254-MS.
Town, K., Sheehy, A.J., and Govreau, B.R. 2010.MEOR Success in Southern Saskatchewan. SPE Res Eval & Eng 13 (5): 773-781. SPE-124319-PA. http://dx.doi.org/10.2118/124319-PA.
Tremblay, B., Sedgwick, G., and Vu, D. 1999. CT Imaging of WormholeGrowth Under Solution-Gas Drive. SPE Res Eval & Eng 2(1): 37-45. SPE-54658-PA. http://dx.doi.org/10.2118/54658-PA.
Yuan, J.-Y., Tremblay, B., and Babchin, A. 1999. A Wormhole NetworkModel of Cold Production in Heavy Oil. Presented at the International ThermalOperations/Heavy Oil Symposium, Bakersfield, California, USA, 17-19 March.SPE-54097-MS. http://dx.doi.org/10.2118/54097-MS.
Zahner, R.L., Govreau, B.R., and Sheehy, A. 2010. MEOR Success inSouthern California. Presented at the SPE Improved Oil Recovery Symposium,Tulsa, Oklahoma, USA, 24-28 April. SPE-129742-MS. http://dx.doi.org/10.2118/129742-MS.