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Title: Method for controlling clathrate hydrates in fluid systems

Discussed is a process for preventing clathrate hydrate masses from impeding the flow of fluid in a fluid system. An additive is contacted with clathrate hydrate masses in the system to prevent those clathrate hydrate masses from impeding fluid flow. The process is particularly useful in the natural gas and petroleum production, transportation and processing industry where gas hydrate formation can cause serious problems. Additives preferably contain one or more five member, six member and/or seven member cyclic chemical groupings. Additives include poly(N-vinyl-2-pyrrolidone) and hydroxyethylcellulose, either in combination or alone. Additives can also contain multiple cyclic chemical groupings having different size rings. One such additive is sold under the name Gaffix VC-713.
Inventors:
Issue Date:
OSTI Identifier:
87748
Assignee:
Colorado School of Mines, Golden, CO (United States) PTO; SCA: 032000; PA: EDB-95:115819; SN: 95001431601
Patent Number(s):
US 5,432,292/A/
Application Number:
PAN: 8-083,108
Contract Number:
FG21-92MC29248
Resource Relation:
Other Information: PBD: 11 Jul 1995
Research Org:
Colorado School of Mines, Golden, CO (United States)
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; GAS HYDRATES; MITIGATION; PIPELINES; ADDITIVES; CELLULOSE; AROMATICS; PYRROLIDONES