Caterpillar Releases Dynamic Gas Blending Retrofit Kit for Well Stimulation Applications

  Caterpillar Releases Dynamic Gas Blending Retrofit Kit for Well Stimulation

Adding Dual Fuel Capacity to Existing Engines will Reduce Overall Fuel Costs

OTC 2013

Business Wire

HOUSTON -- May 1, 2013

Caterpillar Inc. today announced that it has developed a Dynamic Gas Blending
(DGB) retrofit kit for use on the Cat^® 3512C (HD) engine used in well
stimulation applications. Available to order in June 2013, this system will
allow for maximum substitution of diesel fuel with natural gas during high
pressure pumping operations, and is available in both Air To Air After Cooled
(ATAAC) and Separate Circuit After Cooled (SCAC) configurations for 2250 hp
and 2500 hp @1900rpm ratings.

Cat 3512C (HD) with Dynamic Gas Blending Kit (Photo: Business Wire)

Cat 3512C (HD) with Dynamic Gas Blending Kit (Photo: Business Wire)

Heavily leveraging decades of success with Cat natural gas engines and the
recent introduction of the Cat DGB system for land drilling and production,
the Cat well stimulation DGB system makes no comprise with performance,
safety, and reliability while burning a mixture of diesel and natural gas
fuels. “Through our product development work in the field with some of the
leading well servicing companies, the Cat DGB system has performed
exceptionally well. User feedback has been very positive with ease of
installation, engine performance, and the integrated safety features of the
Cat DGB system,” said Scott Roberts, Caterpillar Global Petroleum Well Service
Product Marketing Manager.

Along with the benefit of realizing significant fuel cost savings by
substituting diesel fuel with natural gas, there are several other key
features of the Caterpillar DGB system that make it a winning solution for
well stimulation. Operators can run the system with confidence on CNG, LNG,
and field gas with a lower heating value between 850 and 1,250 Btu, knowing
that the engine is maintaining United States EPA Tier 2 level emissions with
the combined muffler and Cat Diesel Oxidation Catalyst (DOC) included in the
DGB kit. The system is capable of achieving maximum substitution at various
speeds and loads over the full operating range, and will automatically adjust
to changes in gas quality without the need to perform any recalibration or
adjustments to the system during or between jobs.

The DGB system is fully integrated with the engine control system, optimizing
engine performance and ensuring that the engine always operates within safe
parameters while blending diesel and natural gas. This results in no
compromise with performance, maintenance intervals, engine reliability, and
most importantly, safety. Installation of the Cat DGB kit on existing engines
is streamlined through efficient design. The combined muffler and DOC
eliminates the need for the customer to integrate a DOC with their existing
mufflers, and a single advanced Engine Control Unit simplifies the electrical

Cat Dynamic Gas Blending kits are backed by the worldwide Cat dealer network
with trained technicians to ensure service support is never out of reach. To
learn more about the comprehensive Cat solutions for the well service
industry, visit industry experts on hand at the Caterpillar booth at OTC 2013,
May 6-9^th, in Houston, Texas, (Booth #3341) or visit
For up to the minute information during OTC, follow us on Facebook: & Twitter: using #OTCHOUSTON and #CatatOTC.

About Caterpillar Global Petroleum

Caterpillar Global Petroleum, Caterpillar Inc.’s oil and gas division with
headquarters in Houston, Texas, groups all the sales and service activities
for Cat oil and gas power solutions. Since the 1930s, Caterpillar has
manufactured engines for the oilfield and today provides premier power
solutions with outputs from 31 to 16,000 kW. The sales and service network
includes more than 2,100 dealer locations world-wide dedicated to support
customers in the drilling, production, well service and gas compression
segments. More information is available at:

About Caterpillar

For more than 85 years, Caterpillar Inc. has been making progress possible and
driving positive and sustainable change on every continent. With 2012 sales
and revenues of $65.875 billion, Caterpillar is a technology leader and the
world’s leading manufacturer of construction and mining equipment, clean
diesel and natural gas engines and industrial gas turbines. More information
is available at

More information is available at

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Edge” trade dress, as well as corporate and product identity used herein, are
trademarks of Caterpillar and may not be used without permission.

                              ©2013 Caterpillar

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Tel: +1.713.895.1449
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