Control of oil field corrosion by the use of inhibitors
Inhibitors function through their ability to form films on metal. Since a film-forming mechanism is involved, it is obvious that for most efficient treatment consideration should be given to the metal to be protected. The treating methods that have been devised for field use are generally dictated by the mechanics of well completion, rather than good corrosion-control techniques. Substantially, continuous treatment is obtained, in the case of wells, by daily injection of inhibitor solution after an initial heavy treatment. The initial heavy treatment serves to penetrate scales which are generally present on the metal surface and initiate film formation. The subsequent smaller daily injections continue to remove foreign material from the metal surfaces and replace the film that has been lost by solubility effects and abrasion. Batch or slug treatment of wells has in many cases proved more economical and efficient than continuous treatment. In the squeeze treatment, a relatively new technique, a large volume of inhibitor solution is pumped down the tubing and in some cases displaced into the formation. Inhibitors in solid forms have been successfully used in many cases.
- Research Organization:
- Pan American Petroleum Corp.
- OSTI ID:
- 6606017
- Journal Information:
- Proc. Annu. Southwest. Pet. Short Course; (United States), Journal Name: Proc. Annu. Southwest. Pet. Short Course; (United States); ISSN PSPCD
- Country of Publication:
- United States
- Language:
- English
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