Wells – Processes – Graveling or filter forming
Patent
1989-11-27
1990-07-31
Novosad, Stephen J.
Wells
Processes
Graveling or filter forming
166 51, 166114, 166377, E21B 3700, E21B 4304
Patent
active
049443488
ABSTRACT:
Gravel packing systems are disclosed which permit sand fill to be reverse circulated out of a well without tripping the gravel packing system itself out of the well. The gravel packing system can be utilized with a sump packer. An outer seal assembly is constructed to be received in a bore of the sump packer. The seal assembly has a seal assembly bore therethrough which receives a lower end of a wash pipe. A wash pipe extension is partially received in the lower end of the seal assembly bore and extends downward below the seal assembly. The wash pipe extension is communicated with the wash pipe. A releasable retaining structure is operably associated with the wash pipe and the wash pipe extension and initially retains the wash pipe in the seal assembly bore. Subsequently, the wash pipe extension is released upon upward movement of the wash pipe. Methods of gravel packing are also disclosed.
REFERENCES:
patent: 2755862 (1956-07-01), Abendroth et al.
patent: 3710862 (1973-01-01), Young et al.
patent: 3997006 (1976-12-01), Wetzel
patent: 4424864 (1984-01-01), Logan
patent: 4570714 (1986-02-01), Turner et al.
patent: 4638860 (1987-01-01), Magee, Jr. et al.
patent: 4671361 (1987-06-01), Bolin
patent: 4856590 (1989-08-01), Caillier
Exhibit A-Drawing of Modified Crossover Setting Tool, Date of publication unknown.
Exhibit B-Drawing of Washdown Shoe, Date of publication unknown.
Exhibit C-Drawing of Prior Art Locater and Latching Seal Assembly, Date of publication unknown.
Exhibit D-Drawing of Crossover Setting Tool, Date of publication not provided.
Cavender Travis W.
Whiteley Thomas G.
Beavers L. Wayne
Duzan James R.
Halliburton Company
Novosad Stephen J.
LandOfFree
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