Pressure transients characterize fractured Midale unit

Journal Article · Fri Dec 01 00:00:00 EST 1989 · Journal of Petroleum Technology; (USA)

DOI:https://doi.org/10.2118/15635-PA· OSTI ID:7160482

Beliveau, D ^[1]

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1. SPE, Shell Canada Ltd. (CA)

The Midale unit is a naturally fractured carbonate reservoir in the Williston basin of southeastern Saskatchewan. Recently, the Midale working-interest owners initiated a CO{sub 2}-flood pilot project with several closely spaced wells. A comprehensive interwell pressure-transient test program was conducted for reservoir-characterization purposes before pilot operations began. The combination of conventional, pulse, and interference tests resulted in a detailed local description of this naturally fractured reservoir. Selected pressure-transient data from the reservoir- characterization program was presented. The data illustrate the pressure-transient characteristics of an anisotropic, naturally fractured reservoir. Analytical techniques are reviewed, and an interpretation technique for multiwell pressure-transient tests wells with negative skins is included. A discussion of the pressure-transient behavior that is observed in wells with typical field spacing is included.

• OSTI ID: 7160482
• Journal Information: Journal of Petroleum Technology; (USA), Vol. 41:12; ISSN 0022-3522
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
OIL WELLS
CARBON DIOXIDE INJECTION
PETROLEUM
ENHANCED RECOVERY
ANISOTROPY
FRACTURED RESERVOIRS
PRESSURE GRADIENTS
RESERVOIR PRESSURE
WELL DRILLING
WELL STIMULATION
DRILLING
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
MISCIBLE-PHASE DISPLACEMENT
RECOVERY
STIMULATION
WELLS
020300* - Petroleum- Drilling & Production