Wells – Processes – Cementing – plugging or consolidating
Patent
1989-05-09
1990-10-30
Kisliuk, Bruce M.
Wells
Processes
Cementing, plugging or consolidating
166153, 166155, 166156, E21B 3316
Patent
active
049662368
ABSTRACT:
An operating string O is provided for conducting cementing operations in a well bore.
The operating string O is shown sealably and releasably connected with a liner L and extends through upper liner wiper means 45 and terminates in overlapping relationship to lower liner wiper means 26, both of which wiper means 26 and 45 are releasably secured to the operating string O with the lower liner wiper means 26 releasably secured below the upper liner wiper means 45 so that its bore 28a originates adjacent and extends away from the lower end of the upper liner wiper means 45.
The operating string O includes positioning means H to hang the liner L on well bore casting C, and means 145, 146 and 148 to rotate and reciprocate the liner L before hanging it and/or to rotate the liner L during and after cementing. The hanger means H includes rows 90a, 91a' of cone segments 16a, 17a and rows 18, 19 of slip segments 18a, 19a with sleeve S' supporting the cone segments 16a, 17a with sleeve S" supporting the slip segments 18a, 19a, with at least one sleeve movable longitudinally for simultaneously setting all the hangers on the casing C.
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Hayden Jack W.
Kisliuk Bruce M.
Texas Iron Works, Inc.
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