Nanosecond electromagnetic sounding of a fluid-saturated layered formation

作者：Epov M I^*; Mironov V L; Konlarov S A; Muzalevsky K V

来源：Russian Geology and Geophysics, 2007, 48(12): 1054-1060.

DOI：10.1016/j.rgg.2007.11.002

• horizontal well
• fluid-saturated formation
• complex permittivity
• dispersive media
• refractive dielectric model
• broadband pulse
• Green's function
• simulation

Mathematical modeling was applied to study attenuation of a nanosecond pulse that propagated in an oil-bearing formation and was reflected from the oil-gas or oil-water interfaces. The problem was formulated and solved for propagation of a short electromagnetic Gaussian pulse in a layered hydrocarbon reservoir in the case of excitation by a long electric line. Complex permittivity of oil-bearing rocks was calculated using, a refractive mixing dielectric model for oil, saline water, methane, quartz, and bentonite in each layer. We obtained and analyzed space-time diagrams of wave propagation and reflection and estimated effective attenuation for both cases.

• 出版日期2007-12-10