Method for improving formation stability surrounding a deviated

Details Method for improving formation stability surrounding a deviated Method for improving formation stability surrounding a deviated

1995-05-08

1996-05-07

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

166 50, 175 61, E21B 704, E21B 33138, E21B 4304

Patent

active

055137067

ABSTRACT:
Formation stability surrounding a deviated wellbore penetrating a hydrocarbon reservoir is improved by alternately injecting higher and lower density consolidating materials, the higher density material improving stability in the formation primarily on the low side of the wellbore and the lower density material improving stability in the formation primarily on the high side of the wellbore.

REFERENCES:
patent: 3088520 (1963-05-01), Hildebrandt
patent: 3367420 (1968-02-01), Jennings et al.
patent: 4733729 (1988-03-01), Copeland
patent: 5095987 (1992-03-01), Weaver et al.
patent: 5332037 (1994-07-01), Schmidt et al.

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