DGB

Cat Sells Its 700th DGB Kit for E&P

October 8, 2014 in Dual Fuel, E&P Operations, HHP Summit 2014 by Rich Piellisch  |  No Comments

For a 3512C Land Electric Drive Drilling Module

Caterpillar Oil & Gas  has sold its 700th dual fuel dynamic gas blending kit for 3500 series engines for drilling and fracking. The 700th DGB kit will be installed on a Cat 3512C land electric drive drilling module.
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Apache to Use CNG in Permian Basin

June 4, 2014 in CNG, Dual Fuel, E&P Operations by Rich Piellisch  |  No Comments

Certarus Plant Will Support Patterson-UTI Cat 3512s with DGB

Apache Corp is preparing to step up the use of compressed natural gas for its drilling operations, working with Canada’s Certarus and Patterson-UTI Drilling in the Barnhart area of Irion County, Texas, in the Permian Basin.

Three Patterson-UTI rigs powered by Caterpillar 3512 diesel engines will be upfitted with Caterpillar’s DGB (dynamic gas blending) kits to enable them to operate on a mix of natural gas and diesel fuel, Apache says.

a Patterson-UTI drill rig

a Patterson-UTI drill rig

Apache says it “plans to have six rigs operating in this manner by year-end, displacing an anticipated 50% to 70% of the diesel fuel requirement with natural gas.”

‘We Significantly Lower Our Fuel Costs’

Apache is preparing a site on company land next to an existing EnLink gas plant in Garden City, Texas for a Certarus high flow-rate CNG installation.

Apache will arrange an extension from the gas plant’s high-pressure pipeline, install the metering and complete all necessary site work. Certarus will employ twin 300-horsepower IMW compressors to fill tube trailers for delivery of CNG to the drilling sites.

“The massive development of unconventional resource plays with horizontal drilling has created an abundant domestic supply of clean-burning and economic natural gas,” Apache Permian region VP Michael Bose says in a release. “By transforming our drilling rigs to utilize natural gas power, we significantly lower our fuel costs and reduce our carbon footprint,” he said.

Early Autumn Start-Up

“With our experience powering drilling rigs with a blend of natural gas and diesel fuel, we can assure Apache that this transformation should be very successful,” said Patterson-UTI marketing VP Doyce Haney.

The high flow-rate CNG unit should be operational by early fall 2014 to begin bulk CNG delivery to the Apache drilling rigs, says Frank Chapel, natural gas transportation fuels director for Apache. He describes Certarus and Patterson-UTI Drilling as “world class partners” and said, “Their previous experience should be of great benefit in assuring a successful implementation.”

Certarus said that it looks forward “to providing CNG to other E&P companies in the Permian Basin for their drilling rig and hydraulic fracturing engines.”

Apache has previously disclosed work with Schlumberger on CNG-powered fracking in the Granite Wash formation in Oklahoma (HHPi, January 8, 2013).

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Source: Apache Corporation with HHP Insight follow-up

Westport Delivers First LNG Tender

April 9, 2014 in LNG, Rail by Rich Piellisch  |  1 Comments

First of Four Units for EMD and CN Are to Support Low Pressure Trials
Said to be the Precursor of Far Greater HPDI Diesel Displacement to Come

Vancouver-based Westport Innovations has delivered its first liquefied natural gas fuel tender, a prototype unit that will be used by Caterpillar-EMD and CN as they test the viability of a low-pressure LNG-diesel conversion using DGB Caterpillar’s across-the-engine-range Dynamic Gas Blending technology.
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Cat DGB for Drilling and Fracking

September 12, 2013 in Dual Fuel, E&P Operations by Rich Piellisch  |  No Comments

Southwestern-DeSoto Named as Drill Rig Customer in Arkansas:
$100,000 Worth of Fuel Saved in the Fayetteville Shale in 45 Days

Caterpillar is stepping up promotion of its Dynamic Gas Blending technology allowing heavy duty engines to run on a money-saving combination of conventional diesel and variously sourced natural gas. Caterpillar has named Southwestern-DeSoto as a drill rig customer running DGB-fitted 3512C generator sets in Arkansas, and says it’s likewise shipped kits for 3512Cs for well stimulation – aka hydraulic fracturing.
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Dual-Fuel Cat 3512C Gets CARB Yes

June 4, 2013 in Dual Fuel, E&P Operations by Rich Piellisch  |  No Comments

Wider LNG Use of Dynamic Gas Blending on Popular Engine Foreseen

Caterpillar expects to see more use of its Dynamic Gas Blending retrofit kit for dual fuel operation of its popular 3512C engine for drill rigs, as the California Air Resources Board has approved it.
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Caterpillar DGB Dual Fuel Kits for 3512C

May 2, 2013 in E&P Operations by Rich Piellisch  |  No Comments

Dynamic Gas Blending for Well Stimulation Applications – Fracking

Caterpillar Global Petroleum is promoting a Dynamic Gas Blending retrofit kit for its Cat 3512C engine for well stimulation, including hydraulic fracturing. “This system will allow for maximum substitution of diesel fuel with natural gas during high pressure pumping operations,” Caterpillar said. The company will begin taking orders in June.
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