Oilfield reservoir souring during waterflooding: A case study with low sulphate concentration in formation and injection waters
A case study is presented which addressed the origin of Hydrogen Sulphide (H2S) in produced gas associated with the oil in Las Heras - Cerro Grande oilfield in Gulf of San Jorge Basin, Argentina. The reservoir was initially sweet. However, after waterflooding an increase in H2S concentration was det...
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| Formato: | Acta de conferencia Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
2005
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| Acceso en línea: | Registro en Scopus Handle Registro en la Biblioteca Digital |
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| LEADER | 06126caa a22006737a 4500 | ||
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| 001 | PAPER-22033 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518205332.0 | ||
| 008 | 190411s2005 xx ||||fo|||| 10| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-23844453375 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 030 | |a 85REA | ||
| 100 | 1 | |a Cavallaro, A.N. | |
| 245 | 1 | 0 | |a Oilfield reservoir souring during waterflooding: A case study with low sulphate concentration in formation and injection waters |
| 260 | |c 2005 | ||
| 270 | 1 | 0 | |m SPE |
| 506 | |2 openaire |e Política editorial | ||
| 504 | |a Cochrane, W.J., Studies on the thermophilic sulfate reducing bacteria from a souring North Sea Oilfield 1998 SPE European Petroleum Conference, , paper SPE 18368 presented at the, London, Oct. 17-19 | ||
| 504 | |a Frazer, L.C., Boiling, J.D., Hydrogen sulfide forecasting techniques for the kuparuk river field 1991 Artic Technology Conference, , paper SPE 22105 presented at the, Anchorage, Alaska,May 29-31 | ||
| 504 | |a Mohammad, I.A.-E., Investigation of H2S migration in the marjan complex (2001) Reservoir Evaluation and Engineering, p. 509. , Dec | ||
| 504 | |a Khatib, Z.I., Reservoir souring analysis of surveys and experience in sour waterfloods 1997 SPE Annual Technical Conference and Exhibition, , paper SPE 38795 presented at the, San Antonio, Oct. 5-8 | ||
| 504 | |a Poli, M., A non-conventional study for determination of H2S in production gas 2002 Annual Technical Meeting of the Petroleum Society, , paper The Petroleum Society 2002-297 presented at the, Calgary, Alberta, Canada, Jun 4-8 | ||
| 504 | |a Seto, C.J., Beliveau, D.A., Reservoir souring in the caroline field 2000 SPE/CERI Gas Technology Symposium, , paper SPE 59778 presented at the, Calgary, Alberta, Canada, Apr. 3-5 | ||
| 504 | |a Krouse, H.R., Sulphur isotope studies and their role in petroleum exploration (1977) J. Geochem. Explor., 7, pp. 189-211 | ||
| 504 | |a Orr, W.L., Geologic and geochemical controls on the distribution of hydrogen sulfide in natural gas (1975) 7th Int. Meet, on Organic Geochemistry, , Advances in Organic Geochemistry" Madrid, Sept. 16-19 | ||
| 504 | |a Mclenehan, K., Dennis, M., Hitzman, D., Recent successes: Green technology for H2S elimination and increased oil recovery 2004 Annual Technical Meeting of the Petroleum Society, , paper The Petroleum Society 2004-173 presented at the, Calgary, Alberta, Canada, Jun. 8-10 | ||
| 520 | 3 | |a A case study is presented which addressed the origin of Hydrogen Sulphide (H2S) in produced gas associated with the oil in Las Heras - Cerro Grande oilfield in Gulf of San Jorge Basin, Argentina. The reservoir was initially sweet. However, after waterflooding an increase in H2S concentration was detected in several wells. The H2S amount varies across the field with the highest values found in wells where water injection was initiated and the wells produce with a high water cut. Knowledge of H 2S origin contributes to effective control and therefore, to reduce environmental risk, minimize emissions, improve quality of produced hydrocarbons and reduce corrosion rate. The main stages followed include, H2S measurements, H2S source identification and mitigation treatments. The possible mechanisms of reservoir souring have been analyzed by sulphur isotope ratio analysis. These results have been integrated with geological factors and other parameters related to waterflooding. This case is unusual because of water composition. The formation and injection waters have low salinity and are not rich in sulphate ion concentration, very different from sea water composition. Nutrients such as fatty acids are present in both formation and injection waters. The increase in H2S production is attributed to sulphate reducing bacteria (SRB) living in the reservoir. The proposed model to explain H2S origin suggests a closed system with reactive-limited reaction where H2S production is controlled by low sulphate concentration present in waters. A strong correlation was demonstrated between produced H2S, injection water parameters and subsequent souring. A decrease in sulphate concentration present in water production appears to correspond with an increase in H2S concentration. At present, the produced gas is being treated with scavengers. A nitrate injection project is being analyzed to control reservoir souring. The development of a biofilter to oxidize H2S in plant treatment is in laboratory phase. Copyright 2005, Society of Petroleum Engineers Inc. |l eng | |
| 593 | |a SPE | ||
| 593 | |a Repsol YPF | ||
| 593 | |a Ingeis, Argentina | ||
| 690 | 1 | 0 | |a CORROSION RATE |
| 690 | 1 | 0 | |a INJECTION WATERS |
| 690 | 1 | 0 | |a NUTRIENTS |
| 690 | 1 | 0 | |a SULFATE CONCENTRATION |
| 690 | 1 | 0 | |a BACTERIA |
| 690 | 1 | 0 | |a BIOFILTERS |
| 690 | 1 | 0 | |a ENVIRONMENTAL IMPACT |
| 690 | 1 | 0 | |a GEOLOGY |
| 690 | 1 | 0 | |a HYDROCARBONS |
| 690 | 1 | 0 | |a ISOTOPES |
| 690 | 1 | 0 | |a PETROLEUM RESERVOIRS |
| 690 | 1 | 0 | |a PROJECT MANAGEMENT |
| 690 | 1 | 0 | |a SULFUR COMPOUNDS |
| 690 | 1 | 0 | |a WATER INJECTION |
| 690 | 1 | 0 | |a WELL FLOODING |
| 690 | 1 | 0 | |a OIL FIELDS |
| 650 | 1 | 7 | |2 spines |a CORROSION |
| 700 | 1 | |a Martinez, M.E.G. | |
| 700 | 1 | |a Ostera, H. | |
| 700 | 1 | |a Panarello, H. | |
| 700 | 1 | |a Cordero, R.R. | |
| 711 | 2 | |c Houston, TX |d 2 February 2005 through 4 February 2005 |g Código de la conferencia: 65473 | |
| 773 | 0 | |d 2005 |h pp. 131-142 |p Proc SPE Int Symp Oilfield Chem |n Proceedings - SPE International Symposium on Oilfield Chemistry |x 10461779 |t SPE International Symposium on Oilfield Chemistry | |
| 856 | 4 | 1 | |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-23844453375&partnerID=40&md5=08a087509e7ce62711c53b5e67356491 |y Registro en Scopus |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_10461779_v_n_p131_Cavallaro |y Handle |
| 856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10461779_v_n_p131_Cavallaro |y Registro en la Biblioteca Digital |
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