Well flow control apparatus and method

Details Well flow control apparatus and method Well flow control apparatus and method

1975-07-14

1978-01-03

Novosad, Stephen J.

Wells

Valves, closures or changeable restrictors

1661175, 166318, 166332, E21B 2302, E21B 4312

Patent

active

040661288

ABSTRACT:
A side-pocket mandrel for supporting a flow control device such as a gas lift valve along a well flow conductor and a method of operating same. The mandrel is connectible with pipe sections to form an integral length of a flow conductor and has a central bore communicating with the bore of the flow conductor, an orienting sleeve along an end portion of the mandrel, a side-pocket portion communicating with the main bore, a side-pocket landing nipple in the side pocket portion communicating with side ports in the mandrel along the landing nipple, a sliding sleeve valve disposed in the landing nipple for controlling communication through the side ports opening into the landing nipple, and a flow control device such as a gas lift valve releasably lockable in the sliding sleeve valve. The landing nipple and the sliding sleeve valve have locking recess and support and operating shoulder configurations whereby the sliding sleeve valve is moved to and locked at an open position when the flow control device is landed and locked in the landing nipple and the sliding sleeve valve is closed when the flow control device is removed from the landing nipple.

REFERENCES:
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patent: 2923357 (1960-02-01), Daffin
patent: 2970648 (1961-02-01), Daffin et al.
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patent: 3059700 (1962-10-01), Loy et al.
patent: 3378068 (1968-04-01), Page, Jr.
patent: 3493052 (1970-02-01), Evans et al.
patent: 3603393 (1971-09-01), Terral
patent: 3653435 (1972-04-01), Reistle et al.
patent: 3802503 (1974-04-01), McGinn

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