Sand control screen assembly having a sacrificial anode

Details Sand control screen assembly having a sacrificial anode Sand control screen assembly having a sacrificial anode

1998-05-04

2000-07-25

Dang, Hoang

Wells

Processes

Assembling well part

166228, 166231, 166233, 166902, 2104971, 2105001, E21B 4308

Patent

active

06092604&

ABSTRACT:
A sand control screen assembly (10) having a sacrificial anode (26) is disclosed. The sand control screen assembly (10) comprises a plurality of ribs (16) spaced around a base pipe (12) and a screen wire (18) wrapped around the plurality of ribs (16) forming adjacent turns (20, 22) having gaps therebetween that allow the flow of fluids therethrough while preventing the flow of particulate therethrough. The plurality of ribs (16) includes at least one rib (26) that comprises a first metal. The screen wire (18) comprises a second metal that is cathodic to the first metal such that the at least one rib (26) that comprises the first metal acts as a sacrificial anode to reduce the environmental cracking of the screen wire (18).

REFERENCES:
patent: 2801697 (1957-08-01), Rohrback
patent: 4211625 (1980-07-01), Vandevier et al.
patent: 5004049 (1991-04-01), Arterbury
patent: 5070533 (1991-12-01), Bridges et al.
patent: 5190102 (1993-03-01), Arterbury et al.
patent: 5310000 (1994-05-01), Arterbury et al.
patent: 5355956 (1994-10-01), Restarick
patent: 5829522 (1998-11-01), Ross et al.
Brochure entitled "Porous Metal Products" from Newmet Krebsoge, Inc./Thermet Krebsoge, Inc.;.multidot.KOCH Werbedrucke Remscheld.
Brochure entitled "PoroPlus!" extended -area sand-control screens from Purolator Products Company, Facet Filter Products Division, 8439 Triad Drive, Greensboro, NC 27409.

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