PQX Circulating Sleeve

General Description

The PetroQuip PQX Circulating Sleeve is a down hole flow control device installed in the production string to provide communication between the tubing and casing annulus. There are two versions: the PQXO and the PQXA.

The PQXO is opened by shifting the inner sleeve down and closed by shifting the inner sleeve up using standard wireline methods. The PQXA is opened by shifting the inner sleeve up and closed by shifting it down. The PQXA and PQXO circulating sleeves have a nipple profile on the upper sub for installation of flow control locks.

Features

Multiple sleeves may be run in tandem for multiple zonal isolation and production
Integral flow control nipple for well control
Simple positive control of tubing and annulus communication
Versatile design adaptable to many completion configurations
Inexpensive way to achieve zonal control

Applications

Displacing fluid in tubing and annulus
Multiple zone production through a single string
Gas lifting
Circulation of inhibitors for corrosion control
Selective testing of individual zones

Critical Dimensions

Size	Std. Seal Bores	Burst and Collapse Pressure Rating	Maximum Temp. Rating	Tensile Rating	Maximum OD	Seal Material
(in)	(in)	(psi and mPA)	(deg. F and C)	(lbs and kg)	(in and mm)
2 3/8	1.812, 1.875	8,500 psi / 58.6 mPA	325 °F / 163 °C	90,000 lbs / 42,184 kg	3.078 in / 78.2 mm	Peek^TM, Teflon^TM, nitrile
2 7/8	2.188, 2.312	8,000 psi / 55.1 mPA	325 °F / 163 °C	104,600 lbs / 47,445 kg	3.683 in / 93.5 mm	Peek^TM, Teflon^TM, nitrile
3 1/2	2.562, 2.750, 2.812	7,000 psi / 48.9 mPA	325 °F / 163 °C	191,300 lbs / 86,772 kg	4.500 in / 114.3 mm	Peek^TM, Teflon^TM, nitrile

All premium threads and nipple profile are available upon request.