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New tool improves ability to circulate casing to bottomSTOKLEY, C. O; SCOTT, S. R.World oil. 1990, Vol 211, Num 1, pp 55-57, issn 0043-8790, 2 p.Article

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Slimwells without the painHEAD, P; TURNER, D; HANSON, T et al.SPE/IADC drilling conference. 1999, Vol 1, 269-280Conference Paper

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Wirkung von Saugstromsteuerungen in Brunnen = Effect of suction flow control devices in wellsEHRHARDT, G; PELZER, R.BBR. Wasser und Rohrbau. 1992, Vol 43, Num 10, pp 452-458, issn 0937-3756, 6 p.Article

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