Abstract

Experimental equipment was built to study injection profile effects caused by gravity segregation in deviated boreholes. For vertical holes, fluid placement through perforations gave an axially symmetric distribution, but with different radial penetration at the top and bottom of the reservoir. For inclined boreholes, injection of a lighter fluid behaved the same as it did for a vertical hole. However, when injecting a heavier fluid, an upward moving interface front was formed. The end result was an uneven fluid distribution on the low side of the hole compared to the high side of the hole.

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