Directly installed shut-off and diverter valve assembly for flow

Details Directly installed shut-off and diverter valve assembly for flow Directly installed shut-off and diverter valve assembly for flow

1991-07-29

1992-11-10

Dang, Hoang C.

Wells

Processes

Perforating, weakening, bending or separating pipe at an...

137318, 166 55, 166 90, 166 95, 166 97, 166379, 166386, E21B 2908, E21B 33068, E21B 3402

Patent

active

051616173

ABSTRACT:
An apparatus for installing a selectively reopenable shut-off valve into an oil well casing of the type having an outer production casing and an inner production pipe suspended therein including a laterally installed casing plug to which independent flow diversion apparatus are attached after the casing is plugged and flow is initially stopped to allow temporary diversion and continued separated and independent flow from the annulus between the outer casing and inner pipe and from the pipe itself. The apparatus is particularly adapted to shut off a well which is burning or flowing out of control so that suitable repairs may be effected at the wellhead, while production is continued via the separately diverted flows.

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