E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/17
E21B 7/12 (2006.01)
Patent
CA 1062151
ABSTRACT A method of stage cementing a composite string of well casing adaptable primarily to subsea usage. Said method providing improved multiple stage cementing which accomplishes stronger and cleaner structures which facilitate subsequent stage cementing operations.
324430
Scott Lyle B.
LandOfFree
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