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Vapor Flow to Horizontal Wells in Unsaturated Zones

Dep. of Geology & Geophysics, 3115 TAMU, Texas A&M Univ., College Station, TX 77843-3115

View larger version (15K): [in a new window]   Fig. 1. Schematic diagram of a horizontal well in a zone with a covered surface.

View larger version (21K): [in a new window]   Fig. 2. Type curves at a near field point (1, 1, and 2.5 m) in an isotropic (Kh/Kv = 1) and an anisotropic (Kh/Kv = 10) zone with covered surfaces.

View larger version (18K): [in a new window]   Fig. 3. Type curves at a far field point (10, 10, and 2.5 m) in an isotropic (Kh/Kv = 1) and an anisotropic (Kh/Kv = 10) zones with covered surfaces.

View larger version (21K): [in a new window]   Fig. 4. Type curves at a near field point (1, 1, and 2.5 m) in an isotropic (Kh/Kv = 1) and an anisotropic (Kh/Kv = 10) zone with uncovered surfaces.

View larger version (21K): [in a new window]   Fig. 5. Type curves at a far field point (10, 10, and 2.5 m) in an isotropic (Kh/Kv = 1) and an anisotropic (Kh/Kv = 10) zone with uncovered surfaces.

View larger version (21K): [in a new window]   Fig. 6. The upper-right quarter of the contour map of steady-state normalized vertical mass flux qz/q0z across the uncovered surface, where q0z = -ß. The dashed line from xD = 0 to 2 represents half of the horizontal well screen (another half is from xD = -2 to 0). (a) The horizontal well is at zwD = 0.2, and (b) the horizontal well is at zwD = 0.6.

View larger version (14K): [in a new window]   Fig. 7. Normalized total vapor mass fluxes across an uncovered surface with dimensionless time.