Acid Selection for Volcanic Tuffaceous Sandstone With High Analcime Contents: A Laboratory Study in Kita-Akita Oil Field, Northern Japan
- Kenji Ueda (INPEX Corporation) | Ryoichi Matsui (INPEX Corporation) | Murtaza Ziauddin (Schlumberger) | Ling Kong Teng (Schlumberger) | Wei Kan Wang (Schlumberger)
- Document ID
- International Petroleum Technology Conference
- International Petroleum Technology Conference, 26-28 March, Beijing, China
- Publication Date
- Document Type
- Conference Paper
- 2019. International Petroleum Technology Conference
- 5.1 Reservoir Characterisation, 1.8 Formation Damage, 1.6.9 Coring, Fishing, 1.6 Drilling Operations, 4.1.2 Separation and Treating, 4.1 Processing Systems and Design, 4 Facilities Design, Construction and Operation, 5.1.4 Petrology, 5 Reservoir Desciption & Dynamics, 2 Well completion, 2.6 Acidizing, 5.5.2 Core Analysis
- stimulation, Sandstone acidizing, Analcime, Matrix acidizing
- 8 in the last 30 days
- 79 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 7.00|
|SPE Non-Member Price:||USD 23.00|
Investigation of the effectiveness of matrix stimulation treatments for removing drilling induced damage in Akita region in northern Japan is of interest due to the presence of large quantities of acid-sensitive minerals, such as analcime. Feasibility study of the sub-commercial field redevelopment in the Kita-Akita oil field, one of the satellite fields of main Yabase oil fields, which produced from 1957 to 1973, and were plugged and abandoned, were conducted. As a part of the studies, matrix acidizing laboratory experiments were performed. Conventional mud acids and formic-based organic mud acid systems cause significant permeability damage due to instability of analcime in these acids. This study focuses on the development of a treatment fluid that removes drilling-induced damage and is also compatible with the formation.
Petrology studies and core flow tests were used in conjunction with geochemical modeling to achieve this objective. A petrographic analysis on the untreated cores showed abundant tuffaceous pore-filling mineral phases, ranging from 12 to 20% in volume. Smectite clay and microcrystalline quartz are the major constituents as alteration products of volcanic glass. Analcime was present in significant quantities in all samples tested.
Six core flow tests were performed on formation cores to optimize the acid preflush and main acid stage. Permeability change due to the treatment fluids was recorded for the tests. Chemical analysis of the effluent was performed on three core flow tests. Core samples before and after acidization were characterized based on thin section, X-ray diffraction (XRD), scanning electron microscopy(SEM) and mineral mapping.
Core flow tests with a conventional retarded organic mud acid resulted in only a 75% retained permeability. The permeability damage by the retarded organic mud acid was surprising because it usually performs well in acid-sensitive formations. A chelant based retarded mud acid was tested next and resulted in minor formation damage. It can potentially be used in a field treatment as its high dissolving power is expected to more than compensate for the damage. The highest retained permeability was obtained with an acetic-HF acid system. It was successfully able to remove drilling-induced damage and was also compatible with the native mineralogy. Core flow tests were used to calibrate permeability-porosity relationship used in the geochemical simulator. The geochemical simulator was then used to predict field-level acid response.
The analytic methods presented are general enough to be of interest to sandstone acidizing studies where detailed analysis is needed for damage identification and removal. The fluids developed for this formation area good candidates for other formations where conventional acid systems have not performed well. This study also highlights close collaboration between an operator and service company to find a workable solution to a challenging stimulation requirement.
|File Size||3 MB||Number of Pages||26|
Al-Harbi, B. G., Dahlan, A., Nasser, M., and Khaldi, M. H. 2012. Aluminum and iron precipitation during sandstone acidizing using organic-HF acids. Presented at SPE International Symposium and Exhibition on Formation Damage Control, Lafayette, Louisiana, USA, 15-17 February. SPE-151781-MS. https://doi.org/10.2118/151781-MS
Fujioka, K. and Yoshikawa, T. 1969. Zeolitic Alteration of Vitric Tuffs in Akita Oil Field. Journal of the Japanese Association for Petroleum Technology, (in Japanese) 34 (4): 145–154. https://doi.org/10.3720/japt.34.145
Fujioka, K. and Sasaki, A. 1971. Zeolitic Alteration of Vitric Tuffs in Akita Oil Field (Part 3). Journal of the Japanese Association for Petroleum Technology, (in Japanese) 36 (3): 127–135. https://doi.org/10.3720/japt.36.127
Fujioka, Y. and Tanaka, S. 1972. Applications of Hydrochloric Acid to Vitric Tuff Reservoirs. Journal of the Japanese Association for Petroleum Technology, (in Japanese) 37 (2): 71–76. https://doi.org/10.3720/japt.37.71
Gdanski, R. D. 1998. Kinetics of Tertiary Reactions of Hydrofluoric Acid on Aluminosilicates. SPE Production & Facilities 13 (2): 75–80. DOI: https://doi.org/10.2118/31076-PA
Hartman, R. L., Lecerf, B., Frenier, W. 2006. Acid Sensitive Aluminosilicates: Dissolution Kinetics and Fluid Selection for Matrix Stimulation Treatments. SPE Production & Operations 21 (2): 197–204.https://doi.org/10.2118/82267-PA
Hashimoto, S. 2003. Zeolite Photochemistry: Impact of Zeolites on Photochemistry and Feedback from Photochemistry to Zeolite Science. Journal of Photochemistry and Photobiology C, Photochemistry Reviews 4:19–49. https://doi.org/10.1016/s1389-5567(03)00003-0
Hirai, A., Sato, T., and Takashima, T. 1990. Geochemical Study on the Yabase Oil Field, Akita. Journal of the Japanese Association for Petroleum Technology (in Japanese) 55 (1): 37–47. https://doi.org/10.3720/japt.55.37
Mahmoud, M. A., Nasr-El-Din, H. A., De Wolf, C. 2011. Sandstone Acidizing Using a New Class of Chelating Agents. Presented at SPE International Symposium on Oilfield Chemistry, The Woodlands, Texas, USA, 11-13 April. SPE-139815-MS. https://doi.org/10.2118/139815-MS
Shafiq, M. U. and Mahmud, H. B. 2017. Sandstone Matrix Acidizing Knowledge and Future Development. Journal of Petroleum Exploration and Production Technology 7: 1205–1216. https://doi.org/10.1007/s13202-017-0314-6
Ueda, K., Ono, K., Fuse, K. 2018. A Fully Integrated Approach for Screening of Well Completion and Stimulation Methods in Low Permeability, Heterogeneously Distributed Sandstone Reservoirs in the Deepwater Slope Channel, Kita-Akita Oil Field, Northern Japan. Presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, Brisbane, Australia, 23-25 October. SPE-192039-MS. https://doi.org/10.2118/192039-MS
Underdown, D. R., Hickey, J. J., and Kalra, S. K. 1990. Acidization of Analcime-Cemented Sandstone, Gulf of Mexico. Presented at SPE Annual Technical Conference and Exhibition, New Orleans, Louisiana, USA, 23-26 September. SPE-20624-MS. https://doi.org/10.2118/20624-MS
Yamada, M., Miyawaki, R., Nakai, I. 1998. A Rietveld Analysis of the Crystal Structure of Ammonioleucite. Mineralogical Journal 20(3): 105–112. https://doi.org/10.2465/minerj.20.105
Yuan, J., Yang, J., Ma, H. 2016. Crystal Structural Transformation and Kinetics of NH4+/Na+Ion-Exchange in Analcime. Microporous and Mesoporous Materials 222: 202–208. https://doi.org/10.1016/j.micromeso.2015.10.020
Ziauddin, M., Kotlar, H. K., Vikane, O. 2002. The Use of a Virtual Chemistry Laboratory for the Design of Matrix Stimulation Treatments in the Heidrun Field. Presented at the European Petroleum Conference, Aberdeen, Scotland, 29-31 October. SPE-78314-MS. https://doi.org/10.2118/78314-MS.