Laboratory testing and selection of corrosion inhibitors for continuous application in multiphase pipelines
- Arco Exploration and Production Technology, Plano, TX (United States)
- IIT Research Inst., Houston, TX (United States). Westport Technology Center International
Corrosion control is a critical element in the successful operation of the Prudhoe Bay Field. The field contains about 70 large (16 to 24 inch) diameter multiphase gathering lines These lines can be up to five miles long and cross environmentally sensitive areas. Continuous application of corrosion inhibitor is used to control corrosion in the low alloy carbon steel lines. To improve the corrosion inhibition program the authors conducted laboratory testing of candidate inhibitors and compared them to the incumbent products currently in field use. The three techniques they used were stirred kettle tests, rotating cylinder electrode (RCE) tests, and a high speed flow loop. There were a number of products which performed well in the stirred kettle tests. However, under high shear stress conditions there were fewer effective products. The results from the RCE test and the flow loop are comparable under similar shear stress conditions. Based on the test results the authors were able to recommend a candidate for field testing.
- OSTI ID:
- 70040
- Report Number(s):
- CONF-940222--
- Country of Publication:
- United States
- Language:
- English
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