Product
Overview
Pressure
and Temperature Gauges
A
full range of "downhole" pressure and temperature
gauges is available in both Memory (slick line or coiled
tubing conveyed) and Surface Read-Out (electric line)
mode. A selection of gauges in the product range, have
"built-in" dual capability allowing the mode
required for each application to be configured through
software.
Nan
Gall Energy Systems gauges have leading edge capability,
both in terms of performance (for example, temperature
rating, pressure rating, accuracy, resolution and drift)
and features (sampling, memory size and diagnostics.)
Typical
specification sheets are attached for both Quartz and
Sapphire gauges all of which come complete with the Accessories
and Software necessary to gather all the data to a Personal
Computer. Pressure ranges catered for are up to 30,000
psi with temperature ranges up to 200 deg C.
Nan
Gall Energy Systems is one of the few companies in the
world that has a proven successful track record with 200
degC products in the field today.
Nan
Gall Energy Systems also offers Permanent Installation
gauges.
Production
Logging Tools
Nan
Gall Energy Systems produces Cased Hole Production Logging
Tools for both Memory and SRO operations, together with
all the Surface Hardware and Software required to produce
API logs ready for analysis.
Logging
Tools include Pressure, Temperature, Casing Collar Locator,
Gamma Ray, Fluid Identification, Flowmeters and Depth
Logger modules. The Logging Tools interface with either
a "downhole" memory module for slick line operations
or a "downhole" Telemetry module for "electric
line" applications.
The
surface "Depth Logger" module has been
fully certified as an "intrinsically safe"
product (Ex) allowing it to be safely operated in wellhead
areas designated as "hazardous."
Intelligent
Trigger Modules
The
safe initiation of explosive or delayed-action devices
deployed on slickline or coiled tubing can be achieved
through the use of Nan Gall's range of Intelligent Triggering
Devices.
Whether
the job requires casing perforating, tubing punching,
plug / packer setting or even downhole sampling, Nan Gall
can provide the safe means of achieving the goal.
The
Nan Gall Energy Systems Intelligent Trigger has been fully
certified by an independent certifying authority
as safe for use and has demonstrated the necessary immunity
during the certification process to various scenarios
including RF, stray currents and even lightning strikes!
Permanent
Gauges
The
experience that Nan Gall Energy Systems has gained in
the design and manufacture of high temperature and pressure
"downhole" products has placed it in an excellent
position to provide permanent products that meet the demanding
requirements of the "downhole" environment.
In particular, Nan Gall Energy Systems' research and development
in the field of high temperature electronics design and
manufacture has allowed it to develop products with outstanding
reliability.
When
this reliability performance is matched with Nan Gall
Energy Systems' well established electric line telemetry
features - such as the addressable surface read out system
which allows up to 8 different gauges to be communicating
with the surface on a single cable - and Nan Gall Energy
Systems' established real time software, it provides a
powerful combination to address the needs of any permanent
"downhole" installation.
Nan
Gall Energy Systems customises each permanent installation
design to the needs of the customer, tailoring features
such as transducer type, pressure connections, surface
hardware and software configuration
Shut-in
Tools
Quartz
memory gauges, when used in conjunction with a "downhole"
Shut-in Tool can produce many benefits when compared with
"shut-ins" at surface.
A
typical deployment of the "downhole" shut-in
tool is below a lock mandrel and equalising sleeve with
a shock absorber situated between the shut in tool and
the memory gauges below.
Disadvantages
of "surface shut-in" include wellbore storage
effects masking genuine build-up information or leaking
surface flow lines precluding proper surface "shut-in."
OEM
Design & Manufacture
With
over 10 years of experience in the design and manufacture
of "downhole" electronic and mechanical systems,
Nan Gall helps bring our customers ideas to reality.
Nan
Gall's Special Projects engineering department can integrate
your ideas into working products while maintaining complete
confidentiality and exclusivity.
Special
projects range from simple design enhancements to the
full design and manufacturing process where Nan Gall Energy Systems
simply receives a product specification on paper and then
proceeds to design and manufacture the product for the
customer.
