可回收式的封隔器

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可回收式封隔器Description
The RTTS Packer is a full-opening，
hookwall packer used for testing， treating，
and squeeze cementing operations. In most
cases， the tool runs with a circulating valve
assembly.
The packer body includes a J-slot
mechanism， mechanical slips， packer
elements， and hydraulic slips. Large， heavy-duty slips in the hydraulic hold-down
mechanism help prevent the tool from being
pumped up the hole. Drag springs operate
the J-slot mechanism on ≤3
1
/2-in.
(88.9-mm) packer bodies， while larger
packer sizes (≥4 in. or 101.6 mm) use drag
blocks. Automatic J-slot sleeves are stan-dard equipment on all packer bodies.
The circulating valve， if used， is a
locked-open/locked-closed type that serves
as both a circulating valve and bypass. The
valve automatically locks in the closed
position when the packer sets. During
testing or squeezing operati