Integration of geophysical and geomechanical data to understand the depletion of the Marlim field, Campos Basin
DOI:
https://doi.org/10.11606/issn.2316-9095.v21-166922Keywords:
Reservoir, 4D seismic, Pore pressureAbstract
Located in the Campos Basin, Brazil, the Marlim field, consists of two turbidite systems deposited during eustatic sea-level variations in the Oligocene/Miocene. The reservoir was discovered in 1985, and its production started to decline in 2002. One of the techniques selected to assist in the recovery of oil from the reservoir was the 4D seismic. However, its interpretation can be complex. In order to help address this issue, the present study proposed an analysis of the depletion of a small field area from 1997 to 2010, combining geophysical (4D seismic) and geomechanical (pore pressure) data through the construction of pore pressure 3D models for both years, which can be subtracted and compared to seismic anomalies. The results obtained were: an average depletion of 0.42 ppg (50.33 kg/m3) of pore pressure gradient in the field; the identification of potential fluid-flow barriers, such as an NW-SE-oriented channel and sealing faults; and the detection of two areas with an expressive presence of 4D seismic anomalies, one of them showing a quite evident difference between pore pressure gradients, suggesting field depletion. The use of very old and noisy seismic data hindered the application of this methodology. Nevertheless, this research demonstrated the relevance of estimating pore pressure in the reservoir and how this geomechanical parameter can be useful in assessing the level of field depletion.
Downloads
References
Bampi, D., Costa, O. J. (2010). Marlin Field: an optimization study for a mature field. SPE Latin American and Caribbean Petroleum Engineering Conference, OTC-22994-MS. Lima: SPE. https://doi.org/10.2118/139376-MS
Denney, D. (2012). Marlim Field: Mature-Field Optimization. Journal of Petroleum Technology, 64(1), 82-83. https://doi.org/10.2118/0112-0082-JPT
Duarte, O. O. (2003). Dicionário enciclopédico inglêsportuguês de geofísica e geologia. 3ª ed. Rio de Janeiro: Sociedade Brasileira de Geofísica.
Eaton, B. A. (1972). The Effect of Overburden Stress on Geopressure Prediction from Well Logs. Journal of Petroleum Technology, 24(8), 929-934. https://doi.org/10.2118/3719-PA
Eaton, B. A. (1975). The equation for geopressure prediction from well logs. 28th Fall Meeting of the Society of Petroleum Engineers of AIME, SPE-5544-MS. Dallas: SPE. https://doi.org/10.2118/5544-MS
Gardner, G. H. F., Gardner, L. W., Gregory, A. R. (1974). Formation velocity and density—the diagnostic basics for stratigraphic traps. Geophysics, 39(6), 770-780. https://doi.org/10.1190/1.1440465
Johann, P. R. S., Sansonowski, R., Oliveira, R., Bampi, D. (2009). 4D seismic in a heavy oil, turbidite reservoir offshore Brazil. The Leading Edge, 28(6), 718-729. https://doi.org/10.1190/1.3148415
Johann, P. R. S., Thedy, E. A., Gomes, F. A., Schinelli, M. (2006). 4D Seismic in Brazil: experiences in reservoir monitoring. Offshore Technology Conference, OTC-18400-MS. Dallas: OTC. https://doi.org/10.4043/18400-MS
Lorenzatto, R. A., Juiniti, R., Gomes, J. A. T., Martins, J. A. (2004). The Marlim Field development: strategies and challenges. Offshore Technology Conference, OTC-16574-MS. Houston: OTC. https://doi.org/10.4043/16574-MS
Nunes, J. P. P., Santos, M. S., Maciel, N., Davolio, A., Formento, J-L. (2009). Separation of Pressure and Saturation effects using AVO 4D in Marlim Field. 11th International Congress of the Brazilian Geophysical Society, cp-195-00048. Salvador: SBGf. https://doi.org/10.3997/2214-4609-pdb.195.1508_evt_6year_2009
Oliveira, R. M. (2008). The Marlim Field: incorporating 4D seismic in reservoir-management decisions. Journal of Petroleum Technology, 60(4), 52-110. https://doi.org/10.2118/109336-JPT
Oliveira, R. M. Bampi, D., Sansonowski, R. C., Ribeiro Junior, N., Johann, P. R., Ferreira, D. M., Santos, M. S. (2007). Marlim Field: incorporating 4D seismic in the geological model and application in reservoir management decisions. Latin American and Caribbean Petroleum Engineering Conference, SPE-108062-MS. Buenos Aires: SPE. https://doi.org/10.2118/108062-MS
Pelisman, L. G. T., Vicentelli, M. G. C. (2017). Geophysics characterization of Oligocene turbidites and its relationship with synsedimentary fault systems in Marlim oil field - Campos Basin - Brazil: seismic and well profile analysis. 15th International Congress of the Brazilian Geophysical Society. Rio de Janeiro: SBGf.
Picolini, J. P., Chang, H. K. (2019). Modelagem de pressões de poros na área central da Bacia de Santos. Geociências, 38(1), 89-102.
Pinto, A. C. C., Guedes, S. S., Bruhn, C. H. L., Gomes, J. A. T., Sá, A. N., Fagundes Netto, J. R. (2001). Marlim complex development: a reservoir engineering overview. Latin American and Caribbean Petroleum Engineering Conference, SPE-69438-MS. Buenos Aires: SPE. https://doi.org/10.2118/69438-MS
Rocha, L. A. S., Azevedo, C. T. (2009). Projeto de poços de petróleo: geopressões e assentamento de colunas de revestimento. 2ª ed. Rio de Janeiro: Interciência.
Sansonowski, R. C., Macbeth, C. (2008). Quantitative estimation of pressure and saturation changes using 4D Seismic: a case study in the Marlim Field, Campos Basin, Brazil. 70th EAGE Conference and Exhibition, P326. Roma: EAEG.
Sansonowski, R. C., Oliveira, R. M., Júnior, N. M. S., Bampi, D., Junior, L. F. A. (2007). 4D seismic interpretation in the Marlim field, Campos Basin, offshore Brazil. SEG Annual Meeting, SEG-2007-2872. San Antonio: SEG.
Souza, J. M., Scarton, J. C., Candido, A., Souza Cruz, C. E., Corá, C. A. G. (1989). The Marlim and Albacora fields: geophysical, geological, and reservoir aspects. Offshore Technology Conference, OTC-5894-MS. Houston: OTC. https://doi.org/10.4043/5894-MS
Triggia, A. A., Correia, C. A., Filho, C. V., Xavier, J. A. D., Machado, J. C. V., Thommas, J. E., Rossi, N. C. L., Pitombo, N. E. S., Couvea, P. C. V. M., Carvalho, R. S., Barragan, R. V. (2001). Fundamentos de engenharia de petróleo. 2ª ed. Rio de Janeiro: Interciência.
Zhang, J., Zheng, H., Wang, G., Liu, Z., Qi, Y., Huang, Z., Fan, X. (2020). In-situ stresses, abnormal pore pressures and their impacts on the Triassic Xujiahe reservoirs in tectonically active western Sichuan basin. Marine and Petroleum Geology, 122, 104708. https://doi.org/10.1016/j.marpetgeo.2020.104708
Downloads
Published
Issue
Section
License
Copyright (c) 2021 Larissa Furtado Torres, Emílio Velloso Barroso
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Authors who publish in this journal shall comply with the following terms:
- Authors keep their copyright and grant to Geologia USP: Série Científica the right of first publication, with the paper under the Creative Commons BY-NC-SA license (summary of the license: https://creativecommons.org/licenses/by-nc-sa/4.0 | full text of the license: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode) that allows the non-commercial sharing of the paper and granting the proper copyrights of the first publication in this journal.
- Authors are authorized to take additional contracts separately, for non-exclusive distribution of the version of the paper published in this journal (publish in institutional repository or as a book chapter), granting the proper copyrights of first publication in this journal.
- Authors are allowed and encouraged to publish and distribute their paper online (in institutional repositories or their personal page) at any point before or during the editorial process, since this can generate productive changes as well as increase the impact and citation of the published paper (See The effect of Open Access and downloads on citation impact).