参考文章(974)
Dubb Karl-Heinz, Jahoda Axel, Schwarzmeier Rudolf, Tischer Julius, Geisler Juergen, Neubauer Adolf, VERFAHREN UND VORRICHTUNG ZUR REPARATUR DEFEKTER FUTTERROHRSTRAENGE ,(1986)
Toropynin Vladimir, Gajvoronskij Albert A, Kurochkin Boris M, Tsybin Anatolij A, Masich Vladimir I, DEVICE FOR SETTING PLASTER IN WELL ,(1983)
Kiselman Mark L, Nikitchenko Vasilij G, Yarysh Aleksandr T, Mishchenko Vladimir A, PATCH FOR REPAIR OF CASING STRING ,(1993)
Vinogradov Sergej Vladimirovic, Ivanov Albert Vasilevich, Kovanov Anatolij Petrovich, Kiselman Mark Lazarevich, Yurev Valentin Anatonovich, HYDRAULIC CORE HEAD ,(1979)
Meling Konstantin, Shayakhmetov Shamil K, Abdrakhmanov Gabdrashit S, Ibatullin Rustam Kh, Zajnullin Albert G, METHOD OF SETTING A PROFILED CLOSURE IN WELL ,(1982)
Wilhelmus Christianus Maria Lohbeck, Downhole actuator and tool ,(2002)
Owen Walmsley, Pipe clamps/connectors ,(1985)