Influence of an immobile or mobile saturation on non-Darcy compressible flow of real gases in propped fractures

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · J. Pet. Technol.; (United States)

DOI:https://doi.org/10.2118/15066-PA· OSTI ID:6502553

Evans, E V; Evans, R D ^[1]

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1. Univ. of Oklahoma, OK (US)

The effects of immobile and mobile liquid saturations on the non-Darcy flow coefficient in propped fractures have been investigated. It was observed that an immobile liquid saturation of up to 20% PV can triple the non-Darcy flow coefficient and a small mobile liquid saturation will increase the non-Darcy flow coefficient by nearly an order of magnitude (over that of the dry case). The linear relationship between the logarithm of the non-Darcy flow coefficient and the logarithm of the proppant permeability for propped fractures, as proposed by Cooke, is shown to be invalid in the presence of an immobile or mobile liquid saturation. Constants are presented that can be used to obtain a more accurate approximation than has previously been available on the non-Darcy flow coefficient for single-phase flow in fractures propped with 10/20- and 20/40-mesh Ottawa sand. The experimental data obtained from this research was compared with those of others reported in the literature.

• OSTI ID: 6502553
• Journal Information: J. Pet. Technol.; (United States), Journal Name: J. Pet. Technol.; (United States) Vol. 40:10; ISSN JPTJA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
COMPRESSED GASES
COMPRESSIBLE FLOW
DATA
EXPERIMENTAL DATA
FLUID FLOW
FLUIDS
FRACTURED RESERVOIRS
GASES
INFORMATION
NUMERICAL DATA
PERMEABILITY
PROPPING AGENTS
SATURATION