Abstract
C oilfield in beach buried hill is a typical fractured volatile oil reservoir with various reservoir types, complex structure, strong heterogeneity, special fluid properties, light oil quality, high gas oil ratio and gas-liquid two-phase formation fluid. According to the reservoir characteristics, this paper focuses on the research and analysis of acidizing and plugging removal technology and its effect from three aspects: laboratory experimental study of acidizing and plugging removal foundation, acidizing and plugging removal process simulation and field operation. It is proposed that acidizing plugging removal technology is the main technical means to increase production in offshore buried hill reservoir. The oxidized plugging removal fluid has ideal plugging removal effect. Through acid solution, the pollution near the bottom of production well can be removed, and the plugging substances in pores or fractures can be removed, which can effectively communicate with the original pores or fractures of the formation, improve the formation permeability, and realize the purpose of oil well stimulation. This technology has a positive guiding significance for the implementation of acidizing plugging removal technology in offshore buried hill reservoir.
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Ni, P., Tian, L. (2022). Experimental Study and Field Application of Acidizing Plugging Removal Technology in C Oilfield. In: Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2021. IFEDC 2021. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-2149-0_217
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DOI: https://doi.org/10.1007/978-981-19-2149-0_217
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