Measuring and testing – Borehole or drilling – Downhole test
Patent
1980-12-23
1983-01-25
Myracle, Jerry W.
Measuring and testing
Borehole or drilling
Downhole test
E21B 4900
Patent
active
043696546
ABSTRACT:
Invention permits possible recompletion and rejuvenation of older wells to produce from new zones where the original zone of production has become too depleted for further production. Discloses a method and apparatus for testing an earth formation through a well bore side wall which is covered by steel casing and cement. Includes the steps of establishing a fluid tight seal between the face of the casing and the interior of tester apparatus; providing a source of change in the fluid pressure within the apparatus causing a pressure change only when such a fluid tight seal does exist; releasing a firing mechanism responsive to such fluid pressure change to fire a casing perforating mechanism; perforating a hole through the casing with the perforating mechanism at a position within the fluid tight seal to establish sealed fluid communication between the earth formation and the interior of the apparatus; and testing the earth formation through said hole.
REFERENCES:
patent: 3212576 (1965-10-01), Lanmon
patent: 3456504 (1969-07-01), Bombardieri
LandOfFree
Selective earth formation testing through well casing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Selective earth formation testing through well casing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective earth formation testing through well casing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1618999