Inflatable tool with rib expansion support

Details Inflatable tool with rib expansion support Inflatable tool with rib expansion support

1989-11-28

1990-12-25

Neuder, William P.

Wells

Processes

Placing or shifting well part

166187, 277 34, E21B 33127

Patent

active

049795708

ABSTRACT:
An apparatus, such as a packer or bridge plug, and method of use, are provided for introduction into a subterranean well on a conduit. The apparatus has a cylindrical housing which may have upper and lower collars. An elastomeric seal is disposed around the exterior of the housing with a series of longitudinally extending ribs radially positioned around the housing. The ribs are outwardly and flexibly movable from retracted to expanded positions to anchor the apparatus in the well thereby resisting at least one of longitudinal and rotational movements. At least one elastically expandable belt is carried around the exterior of the ribs. When the sealing element, which includes a tubular elastic body, is moved for sealing engagement within the well by application of fluid, the belt expands and radially conforms the flexing movement of the ribs.

REFERENCES:
patent: 3289761 (1966-12-01), Smith et al.
patent: 3604732 (1971-09-01), Malone
patent: 4349204 (1982-09-01), Malone
patent: 4413653 (1983-11-01), Carter, Jr.
patent: 4768590 (1988-09-01), Sanford et al.
patent: 4832120 (1989-05-01), Coronado

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