Apparatus for preventing casing damage due to formation compaction
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United States of America Patent
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-
Dec 29, 1992
Grant Date -
N/A
app pub date -
Dec 26, 1990
filing date -
Dec 26, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for preventing casing damage due to high axial loading in a well as a result of compaction of the surrounding earth formations. The method consists of providing specially sized and located grooves on both the inside and outside diameters of a section of well casing. The grooves are designed and spacers may be used in some grooves to ensure symmetrical deformation of the casing when subjected to a compressive loading.
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