One trip cement and gravel pack system

Details One trip cement and gravel pack system One trip cement and gravel pack system

1995-02-14

1997-01-21

Dang, Hoang C.

Wells

Processes

Graveling or filter forming

166131, 166285, E21B 3313, E21B 4304

Patent

active

055952461

ABSTRACT:
An apparatus and method is provided that allows an operator to drill a well into a formation requiring treatment or gravel packing in a single pass, then to lower and position the liner and production strings simultaneously. The invention allows cementing of the liner prior to any treatment or gravel packing, and provides an integral circulation system to allow formation treatment or gravel packing of the production string. Once treatment or gravel packing is completed, the invention provides mechanical fluid loss control as the circulation system is pulled out of the hole.

REFERENCES:
patent: 2716454 (1955-08-01), Abendroth
patent: 2753940 (1956-07-01), Bonner
patent: 4187906 (1980-02-01), Kovacs
patent: 4270608 (1981-06-01), Hendrickson et al.
patent: 4444263 (1984-04-01), Ploeg et al.
patent: 4655286 (1987-04-01), Wood
patent: 4869323 (1989-09-01), Stagg
patent: 5024273 (1991-06-01), Coone et al.

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