A Circulating Plug

A Circulating Plug

Purpose

Used as a check valve within the tubing string. May also be used to pressure test tubing while checking for leaks.

Description

Set in wellbore below tubing perforations as a check valve. May also have a tubing stop attached to the bottom and used to check for leaks in tubing string by starting at the bottom of the tubing string and moving upward using the tubing stop as a setting platform until the leak is found.

Operation

The BT “A” Circulating Plug can be used various ways, the first is to be set upon a tubing stop below either a hole, or perforation in the tubing string to act as a check valve.Another use for the circulating plug is to act as a hole finder, attach a tubing stop to the bottom of the circulating plug via the 0.625 SR box, run into the bottom of the tubing string and set in lower most tubing collar, at which time the hole is filled and pressure tested for leaks. This may be repeated many times by unsetting the tubing stop and moving uphole until the leak is isolated.

Precautions

Insure of the proper size and composition of Pump / Choke cup is used as wellbore conditions dictate.

Nominal Size

1.50”

2.00”

2.50”

3.00”

Assembly Number

1101A150A0

1101A200A0

1101A250A0

1101A300A0

Item

Part Name

1

Fishneck

1101A15001

1101A20001

1101A25001

1101A30001

2

Mandrel

1101A15002

1101A20002

1101A25002

1101A30002

3

Collet

1101A15003

1101A20003

1101A25003

1101A30003

4

Cup Retainer

1101A15004

1101A20004

1101A25004

1101A30004

5

O-Ring

#212

#216

#220

#225

Lower Thread Connection

0.938” – 10 UN

0.938” – 10 UN

0.938” – 10 UN

N/A

Max O.D.

1.469”

1.86”

2.275”

2.84”

Fishneck Size

1.18”

1.37”

1.37”

2.31”

Download Technical Datasheet

Sales & Support