Method of using a spacer system in brine completion of wellbores

Details Method of using a spacer system in brine completion of wellbores Method of using a spacer system in brine completion of wellbores

1982-05-03

1984-01-03

Novosad, Stephen J.

Wells

Processes

Cleaning or unloading well

252 855R, E21B 2100, E21B 3700

Patent

active

044237812

ABSTRACT:
Specification discloses a process for completing a wellbore into a subterranean reservoir. In completing the wellbore, a completion fluid is pumped into the wellbore 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 circulation rates.

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patent: 4141843 (1979-02-01), Watson
patent: 4190110 (1980-02-01), Beirute
patent: 4223732 (1980-09-01), Carriay et al.

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