External sleeve cementing tool

Details External sleeve cementing tool External sleeve cementing tool

1990-04-25

1991-08-13

Melius, Terry L.

Wells

Processes

Cementing, plugging or consolidating

166154, 166332, E21B 3414

Patent

active

050388622

ABSTRACT:
A cementing tool includes a tubular housing having an inner passage defined longitudinally therethrough and having a radially outer surface. The housing also has a cementing port and a longitudinal slot both disposed through a wall thereof. An outer closure sleeve is slidably received about the outer surface of the housing and is movable relative to the housing between an open position wherein the cementing port is uncovered by the closure sleeve and a closed position wherein the cementing port is closed by the closure sleeve. An inner operating sleeve is slidably received in the housing and slidable between first and second positions relative to the housing. A pin extends radially through the slot and fixedly connects the operating sleeve and the closure sleeve together for common longitudinal movement relative to the housing. When cementing is completed, a cementing plug engages the operating sleeve and causes it to move the external closure sleeve downward thus closing the cementing port. Internal components of the cementing tool may then be drilled out of the housing thus leaving a smooth bore through the cementing tool through which other equipment can be run.

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Exhibit A--HOS Cementer (Date--More than one year prior to filling).
Exhibit B--Drawing of Multi-State Packer Cementing Collar (Date--More than one year prior to filing).
Exhibit C--1982-1983, Product Service Catalog of Bakerline Division of Baker Oil Tools, Inc., p. 4.
Exhibit D--Baker Eastern Division 1978-1979 Catalog, of Baker Oil Tools, Inc., p. 549.

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