Downhole corrosion coupon holder

Details Downhole corrosion coupon holder Downhole corrosion coupon holder

1986-05-23

1987-08-25

Suchfield, George A.

Wells

Processes

With indicating, testing, measuring or locating

73 86, 166242, 166902, 436 6, E21B 4700

Patent

active

046886389

ABSTRACT:
A corrosion coupon anchoring system for positively positioning a corrosion monitoring coupon in the production flowpath downhole in a producing well. Preferably cylindrical coupons are held firmly within a cylindrical housing suspended out of contact with any other metallic surface. An adaptor threadingly engages the cylindrical housing to a conventional locking mandrel that is locked in place to a nipple positioned in the tubing string. The minimum internal dimension of the coupon holding section is not less than the minimum internal dimension of the locking mandrel so as to minimize flow restriction introduced by the anchoring system.

REFERENCES:
patent: 1683489 (1928-09-01), Rice
patent: 2994778 (1961-08-01), Marsh
patent: 3384181 (1968-05-01), Maly et al.
patent: 3451264 (1969-06-01), Kastor
patent: 4267148 (1981-05-01), Dickson et al.
patent: 4483397 (1984-11-01), Gray
patent: 4505331 (1985-03-01), Akkerman
patent: 4524833 (1985-06-01), Hilts et al.
patent: 4603113 (1986-07-01), Bauer

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