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Cemented pipe-in-pipe casing strings solve field problems

Journal Article · · World Oil; (United States)
OSTI ID:5377498
A severe problem in old producing wells in high pressure areas is casing collapse. To solve it, tests were run on the feasibility of cementing smaller casing inside the larger, deformed pipe. Results were surprising. The collapse resistance of a pipe-in-pipe combination was at least 15 to 30% greater than API specifications and, even when the outer pipe was deformed, resistance was more than sufficient. 4 refs.
Research Organization:
Tech Univ, Clausthal, Ger
OSTI ID:
5377498
Journal Information:
World Oil; (United States), Journal Name: World Oil; (United States) Vol. 193:5; ISSN WOOIA
Country of Publication:
United States
Language:
English

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