EQUIPMENT & ENGINEERING
50 Offshore November 2017 • www.offshore-mag.com
Pipeline Pressure Isolation Group, LLC
(PPIG) says it has completed testing and vali-
dation of the world’s first piggable “low-stress”
pipeline pressure isolation plug capable of
operating in thin wall onshore pipelines as
well as offshore pipelines.
The company says that due to the unique
design of the IsoPig technology, stress on the
pipe wall is significantly reduced.
This creates for the first time
a piggable solution that
allows an internal pres-
sure barrier for onshore
applications. PPIG says
that existing piggable
isolation tools put much
more stress on the pipeline
than the IsoPig which, until
now, has prevented these tools
from being used in thinner wall pipelines,
without the use of external clamps.
PPIG says that the new tool allows for the
pressure isolation of a section of pipeline, all
from the inside. This, in turn, allows a hydrocar-bon-free worksite, without the need to excavate
at the isolation location, weld, or cut large holes;
and without purging or flattening the line.
A low-stress solution is not as critical in
offshore pipe, which typically has a heavy
wall. However, onshore pipe is older, often
with much thinner wall, and more easily
susceptible to damage if over stressed. PPIG
says that the IsoPig solves this problem with
its unique “low-stress” design.
The IsoPig has been tested and confirmed
to isolate significant pressures, with low pipe
stress, while remaining a true double-block
barrier (everything is 100% redundant), while
allowing zero leakage (“bubble tight”). The
service is available for liquids or gas. •
Archer has launched a new generation of SPACE ultrasound
imaging and measurement services, which apply ground-breaking ultrasonic techniques – such as phased-array beam-forming – to enable
spatial understanding of the downhole environment.
The launch introduces SPACE Vernier, a service designed to maximize well life by measuring the internal and external dimensions of
the entire wellbore to generate statistical analysis of localized damage
and systemic corrosion. Archer says that the technology features a
unique no contact design, which eliminates the risk of damage to the
As part of the launch Archer has released a rebrand and technical
upgrade of the original technology. The company says that SPACE
Focus (formerly Forward Viewer) can now operate in temperatures
of up to 135°C and pressures of up to 7,250 psi. SPACE Panorama
(formerly Azimuthal Viewer) is now suitable for 150°C and 15,000 psi
environments and is also available in a 21⁄8-in. size, making it suitable
for a wider range of downhole applications.
Archer says that the SPACE range also features a new proprietary, adaptive high-speed telemetry system which, combined with
digital processing, sets new standards in downhole 3D image quality.
The developments will enable operators to more accurately visualize
specific well components to identify and measure damage, and therefore make better-informed decisions relating to well maintenance
and operations. •
IsoPig creates internal pressure barrier in offshore pipelines
Archer launches downhole imaging and measurement services
PPIG says its IsoPig tool allows for the pressure isolation of a section of pipeline from the inside.
(Photo courtesy PPIG)
Archer’s new generation of SPACE technology is designed to facilitate better understanding of the downhole environment. (Photo courtesy Archer)