Caterpillar Releases Dynamic Gas Blending Retrofit Kit for Well Stimulation Applications

Caterpillar Releases Dynamic Gas Blending Retrofit Kit for Well Stimulation Applications

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

HOUSTON--(BUSINESS WIRE)-- 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)

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 system.

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 6-9th, 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

CAT, CATERPILLAR, their respective logos, "Caterpillar Yellow", the "Power 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

All Rights Reserved

Photos/Multimedia Gallery Available:

Press Inquiries
Caterpillar Press Relations:
Jenna Janik
Tel: +1.713.895.1449

KEYWORDS: United States North America Texas


The article Caterpillar Releases Dynamic Gas Blending Retrofit Kit for Well Stimulation Applications originally appeared on

Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

Copyright © 1995 - 2013 The Motley Fool, LLC. All rights reserved. The Motley Fool has a disclosure policy.