Spacer system useful in brine completion of wellbores

Details Spacer system useful in brine completion of wellbores Spacer system useful in brine completion of wellbores

E - Fixed Constructions

21

B

166/33

E21B 43/20 (2006.01) C09K 8/42 (2006.01) E21B 33/16 (2006.01)

Patent

CA 1158546

ABSTRACT Specification discloses a process for completing a wellbore into a subterranean reservoir. In completing the wellbore, a completion fluid is pumped into the well- bore casing to displace the mud contained therein, the improvement comprising pumping a spacer system into the wellbore casing before pumping the completion fluid into the wellbore. The spacer system comprises a spacer fluid having a viscosity sufficiently high such that the spacer fluid exists in either laminar or plug flow at normal cir- culation rates.

372388

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