Well screen with erosion protection walls

Details Well screen with erosion protection walls Well screen with erosion protection walls

1976-01-12

1977-12-27

Purser, Ernest R.

Wells

Screens

Concentric pipes

210460, 210456, E21B 4308

Patent

active

040649385

ABSTRACT:
An erosion-resistant sand screen assembly is described for use in petroleum wells of the type in which sand tends to become entrained in the stream of petroleum entering the wellbore. The assembly is especially useful in cased holes in formations which consist of very find sand, such as have been encountered in the Gulf Coast region of the United States and off the east coast of Trinidad. The assembly uses a sleeve with an erosion-resistant wall at least one-fourth inch thick, positioned around the outside layer of wire screen. Preferably, the assembly has an outer surface of a resilient elastomeric material.

REFERENCES:
patent: 717420 (1902-12-01), Lesson
patent: 1305915 (1919-06-01), Mack
patent: 1652650 (1927-12-01), Watson et al.
patent: 2104339 (1938-01-01), Arutunoff
patent: 2907351 (1959-10-01), Rohrback
patent: 3561603 (1971-02-01), Salomon
patent: 3816894 (1974-06-01), Howard et al.

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