Corrosion guard tubing nipple
This patent describes the process of placing a string of tubing in an oil field well; a. the string of tubing when placed extending from the surface of the earth to an oil bearing formation far below the surface, b. the string made from i. a plurality of tubing sections, ii. each section having external threads on each end, and iii. cuffs with internal threads coupling the tubing sections together, c. each of the tubing sections having i. an axis, ii. a wall thickness, and iii. a corrosion resistant coating on its inside bore; wherein the improved method comprises: d. placing a section of tubing into the well with a cuff attached to the upper end at the surface of the earth, e. dropping a corrosion resistant nipple into the cuff, f. the nipple being loose in the cuff, g. attaching an additional section of tubing onto the cuff, and h. screwing the additional section tightly to the cuff.
- Assignee:
- NOV; NOV-89-039281; EDB-89-030375
- Patent Number(s):
- US 4773479
- OSTI ID:
- 6589848
- Resource Relation:
- Patent File Date: Filed date 27 May 1987
- Country of Publication:
- United States
- Language:
- English
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