Handling: hand and hoist-line implements – Grapple – Well type
Patent
1981-09-18
1983-05-10
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Well type
166181, 166373, 294 8612, 294 8633, E21B 3118
Patent
active
043826237
ABSTRACT:
A method and apparatus are disclosed for sequentially treating two vertically separated zones in a well bore, utilizing a packer having a fluid passageway therethrough set between the zones, a pressure shearable plug at the lower end of the packer, and a retrievable fluid plug at the upper end of the packer. Once the packer, with the shear plug on its lower end, is set in the well bore between the two zones, the retrievable plug is placed in the upper end of the packer to isolate the shear plug from well pressure in the upper zone, and the desired treating steps are performed on the upper zone. The retrievable fluid plug is then removed and tubing run to the packer to establish communication with the shearable fluid plug. The shearable plug permits static pressure testing of the tubing string and seals before communication is established with the lower zone, and then may be removed by elevating fluid pressure to sufficiently shear the plug. The desired treating operations may then be performed on the lower zone. This abstract is neither intended to define the invention of the application, which of course is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.
REFERENCES:
patent: 2074912 (1937-03-01), Hutto
patent: 2376605 (1945-05-01), Lawrence
patent: 3199906 (1965-08-01), Chenoweth
patent: 3244233 (1966-04-01), Villalon
patent: 3493052 (1970-02-01), Evans et al.
patent: 3543849 (1970-12-01), Kilgore
Cherry Johnny D.
Tri-State Oil Tool Industries, Inc.
LandOfFree
Apparatus for retrieving fluid plug does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for retrieving fluid plug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for retrieving fluid plug will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-523921