Improved Reservoir Characterization from Integration of Towed Streamer EM and Dual-sensor Broadband Seismic Data

Abstract

present a geophysical reservoir characterization workflow that seeks to integrate elastic and electric attributes derived from inversion of seismic and CSEM data.

Joint Elastic‐Electrical Properties of Artificial Porous Sandstone With Aligned Fractures

“…These results preliminarily reveal the nature of how the elastic and electrical properties are correlated and can be used not only to obtain one property from the other, if the latter (e.g., electrical conductivity) can be more easily measured (Carcione et al, 2007), but also to facilitate the joint interpretation of seismic and controlled source electromagnetic data for hydrocarbon exploration (Du et al, 2017). These results preliminarily reveal the nature of how the elastic and electrical properties are correlated and can be used not only to obtain one property from the other, if the latter (e.g., electrical conductivity) can be more easily measured (Carcione et al, 2007), but also to facilitate the joint interpretation of seismic and controlled source electromagnetic data for hydrocarbon exploration (Du et al, 2017).…”

“…Comprehensive study of the joint elastic-electrical properties of a large number of homogeneous porous sandstones demonstrates that the elastic velocity and logarithmic electrical conductivity can be approximately linearly correlated through porosity, the primary parameter that controls both elastic and electrical behaviors of porous rocks, and the existence of pore-filling clay minerals plays as a second-order factor that slightly reduces the elastic velocity but significantly decreases the electrical conductivity, making the linear trend for the clayrich sandstones steeper than that for the clean sandstones if elastic velocity is plotted against logarithmic electrical conductivity . These results preliminarily reveal the nature of how the elastic and electrical properties are correlated and can be used not only to obtain one property from the other, if the latter (e.g., electrical conductivity) can be more easily measured (Carcione et al, 2007), but also to facilitate the joint interpretation of seismic and controlled source electromagnetic data for hydrocarbon exploration (Du et al, 2017). However, the obtained joint elastic-electrical properties are only valid for homogeneous rocks, and the joint elastic-electrical properties of anisotropic rocks remain poorly understood even though such conditions are frequently encountered in the subsurface Earth.…”