ACT Side Pocket Mandrels allow use of standard wireline tools for
installation and retrieval of different types of flow control devices.|
Generally Low Alloy Steel AISI 4130 is used. For corrosive application,
AISI 410 is used. Other materials are used as per customer's
Pockets & tool discriminators are closed die forged and are integral
part of the pocket. Swages are forged from seamless mechanical
tubing or it can be machined from solid bar stock. Forgings are made
by using a precision closed die process. All forged parts are visually
and dimensionally inspected by Quality Control before machining.
Pockets are machined using deep hole drilling & boring process that
provides accurate polished bore diameters, alignment and better
surface finish for packing seals. The swages are machined with
precision accuracy. Threads are machined asper design specification.
All components are dimensionally inspected.
WELDING HEAT TREATMENT:
Welding is done asper ASME Section VIII & IX with the use of proper
welding electrodes. Full penetration welds take place when joining the
swages and forged pocket are welded to the oval pipe. After welding,
all external weld deposits are evenly grounded down to match the
outside profile. All mandrels are heat treated, Quenched & Tempered
to 18-22 HRC, for corrosive service and 24-38 HRC for standard
After heat treatment and threading each mandrel is tested for
hardness, internal and external drift and pressure test. Additional
testing i.e. dye penetrant, ultrasonic, magnetic particle and
radiography can also be provided as per customer requirement.
TMP and TP Series Side Pocket Mandrel:
ACT TMP and TP Series Side Pocket Mandrels are consisting
of forged pocket with integral tool discriminator, oval pipe, swages
and orienting sleeves. Its orienting sleeve allows precise and proper
alignment during the insertion of positioning devices / tools into the
side pocket. Forged tool discriminator guides the proper diameter
side pocket devices/tools into the mandrel pocket and deflects larger
tools into the tubing bore to prevent damage to the positioning
In Gas Lift applications, high pressure gas injected into the casing
annulus flows through the ports of the pocket in the gas lift valve and
into the tubing. The standard pocket is ported between the seal
bores to communicate with the casing annulus and the gas is
circulated down the annulus through the gas lift valve into the tubing.
These mandrels are used for tubing flow applications.
Both TMP and TP series feature multiple porting variations for
specific applications i.e. annulus flow, chamber lift, fluid injection
water flood installations.
TMP and TPC Series Side Pocket Mandrel:
These mandrels are used in annulus flow applications in which a
snorkel functions as an exhaust port. Snorkel located at the bottom
of the side pocket, extends downward into casing annulus. The holes
in the mandrel side pocket directly communicate with the tubing.
High pressure gas injected into the tubing flows thru the port
between the packing bores into the pocket of the mandrel, then thru
the ports into the gas lift valve, downward through the snorkel and
then finally into the casing.
TMPE and TPE Series Side Pocket Mandrel:
These mandrels mainly used in chamber lift applications. It has no
ports in the side pocket for communication with the tubing. Instead of
that, an exhaust port is located at the bottom of the side pocket. This
port is extended downward into the casing annulus through a 1/2" pipe
connected to the top packer of a chamber lift installation. In gas lift
application, high pressure gas is injected into the casing annulus
flows through the ports in the side of the mandrel, then through the
ports in the gas lift valve and finally downward to the exhaust port.
TMPS and TPS Series Side Pocket Mandrel:
These mandrels are used in single string, multi zone fluid injection
water flood installations. The casing exhaust port located at the
bottom of the side pocket is used to protect the casing from high
velocity turbulence related with water flooding. In water flood
operations, water injected into the tubing flows into the mandrel side
pocket, thru the water flood flow regulator valve and downward
through he exhaust port. A non retrievable check valve can be
attached directly to the exhaust port to prevent back flow from the
annulus when the water flood regulator valve is removed.
* Test Pressures given are for mandrels made of AISI-4130 materials heat treated for standard or corrosive
environments. Test Pressures may be reduced due to end connection limitations.
** Weight and Length may vary depending upon end connection etc.
*** For 7" TMP & TP Series other drift sizes can also be provided upon request.