Field-proven and reliable, the Ajax integral engine-compressor is the durable, low-maintenance solution to maximizing fi eld value while minimizing emissions.

GE Oil & Gas

Ajax Integral Engine-Compressors

Simplicity, durability & enduring value

Ajax* integral engine-compressors are designed for simplicity. A low-maintenance, reliable piece of equipment is comprised only of components that are strictly necessary. Fewer parts means a smaller margin for error. Ajax integral engine-compressors maintain a 98% or better performance consistency.

As an integral engine-compressor, Ajax avoids many of the challenges inherent in its separable counterparts. Separable compressors must be matched to the driver, which requires alignment in packaging, with associated labor and time. With its integral design, Ajax eliminates these demands on the customer’s time and budget – less parts, less investment.

In contrast to high-speed, separable compressors, Ajax operates at low-speed. This means less wear and tear on the equipment, reduced maintenance requirements and an increase in uptime. Ultimately, operating at low-speed improves customers’ economic operating environment. For added peace of mind, Ajax is BACT emissions compliant for both attainment and nonattainment areas.

Solid reputation. After 50 years of reliable and robust service, Ajax integral engine-compressors continue to be globally renowned for their user-friendly simplicity and long-term eff ciency.

The Ajax product line varies from 147 to 845 hp (110-630 kW), with a cylinder line-up capable of handling a wide range of pressures, from vacuum to 5,500 psi (379 bar).

These specifications cover up to six ratios capability and the lowest commercially available BHP per million flows for a wide range of applications, including sour fuel gas. The Ajax integral engine-compressor has a unique two-stroke engine design, which virtually eliminates complications caused by sour fuel gas, with the ability to handle H2S content up to 3.0 mol%.

The * symbol denote a trademark of the General Electric Company.

History of experience. First introduced in the 1950s, many Ajax integral engine-compressor units are still in service today. GE draws upon more than 120 years of history collaborating with clients as a trusted partner. Our global team leverages access to the best minds and most innovative equipment, in order to improve fi eld productivity and support clients in modern emissions compliance.

Guaranteed quality. Ajax integral technology provides lower overall operating and maintenance costs. Best in class technical support is provided from a comprehensive network of service shops and locations. Inte-gral compressor-engine frames and cylinders continue to be manufactured at Oklahoma City as they have since 1958. Ajax is also available as a pre-engineered and prepackaged unit or can be packaged by one of our rigorously certified global packaging partners. Ajax integrals are backed by the worldwide engineering and manufacturing strength of GE Oil & Gas and an extensive domestic and international distribution network.

Customer focus. By listening to feedback from our customers, GE Oil & Gas has continued to improve Ajax to meet their needs. Customers face worsening gas conditions, wells that deplete over time and newer environmental regulations that must all be addressed in a challenging economic environment. Operational flexibility, environmental performance and cost reduction are critical to success. By incorporating these key factors, Ajax integral engine-compressors simplify operations and maximize value.

Dugan Case StudyLocation: Farmington, New Mexico, USA

Dugan Production has more than 105 gas gathering compressors, most of which are wellhead units connected to one or more gas wells. The majority of Dugan’s larger units are Ajax integral engine-compressors. The company acquired an Ajax DPC-120 with an operating well from Skelly Oil in 1968 and has moved it to two diff erent sites in the San Juan Basin since that time. Apart from an 18-month idle period, the unit has been in continuous service for 55 years (since 1959), and currently operates at the Davis wellsite in the western San Juan basin, gathering gas from four wells.

Results:

The DPC-120 engine runs at 475 rpm with an average piston speed of 950 ft/min., meaning that since 1959 at 98% run time its pistons have now traveled approximately 5.1 million miles: the equivalent distance of 10.5 trips to the moon and back, and it still has the majority of its original components.

Dugan Production has had the DPC-120 running almost constantly for 15 years at the Davis wellsite with very minimal intervention required. There were 131,400 hours in those 15 years, and the DPC-120 ran for approximately 125,000, with no major repairs or overhauls required. At the end of 2014, Dugan Production purchased four DPC-2802s due to Ajax integral technology providing lower overall operating costs and maintenance expenses.

Savings vs high speed separable package†

Annual 5 Years

DPC-2802LE $9k $44k DPC-2803LE $8k $44k DPC-2804LE $12k $60k

† Compared to non GE high speed separable compressor and engine package. High speed oil $17.11/gal; two stroke oil $13.84/gal; conventional oil $13.47/gal

e†

ears

$44k$44k$60k

al

Less oil changes, less oil changed

Ajax engines inject precise oil amounts with each stroke, which is consumed, meaning no contaminated oil from the power cylinders has to be changed. The power cylinders are also isolated from the crankcase by the crosshead guide design. On a high speedengine, the power cylinders are only separated from the crankcase by the piston rings. Ongoing contami-nation of that oil by combustion gases necessitates frequent oil changes. Engine oil consumption during operation should be similar, but because of their high speed four stroke engines, separable packages will require more oil changes with each oil change requiring more oil than an Ajax integral package. This could be up to 8-10 annual oil changes versus just one annual oil change for Ajax. The 440 rpm Ajax two stroke engine therefore has a clear advantage over high speed four stroke engines when it comes to oil changes.

The economic impact of oil maintenance diff erences can be substantial with the cost of deploying service personnel multiple times to change the oil, and the downtime that incurs. High speed engines will gener-ally require higher grade oil than Ajax. Considering both the amount and cost of required oil, there are substantial annualized savings with Ajax.

Availability & maintainability

More fl ow from less power equals less fuel

Ajax compressor cylinders feature large gas passages and valve fl ow areas for high effi ciency. Low valve velocity provides compression effi ciency with minimum loss. When combined with precise cylinder clearances and a long compressor stroke, an Ajax unit can move more gas per horsepower than any competitive unit.

Primary applications

• Gas gathering• Gas transmission• Storage• Gas re-injection• Gas processing• Propane processing• Helium processing• Coal bed methane processing• Fuel gas boosting

Sour gas capability

The unique 2-stroke design of the Ajax integral engine-compressor eliminates the problems typically caused by H2S presence in fuel gas. Because the power cylinder is isolated from the crankcase, blow-by cannot enter the crankcase resulting in acid attack of the bearings. Unlike conventional 4-stroke engines, the Ajax does not have intake or exhaust valves so valve and seat wear are totally eliminated.

Ajax DPC-2804LE

Ajax has continually evolved to meet customer needs and provide reliable service. Improvements over the years have supple-mented the strength and simplicity of the original design: the inherent nature of the Ajax engine and compressor has remained fundamentally unchanged since the 1950s.

STD

When the Ajax was fi rst introduced in its Standard (STD) model, it proved to be the most effi cient integral engine-compressor on the market.

LE

Subsequently, Low Emission (LE) models were developed, maintaining the same high performance design, but achieving lower emissions without requiring costly add-ons or the use of catalytic converters. The LE models reduced fuel consumption, broad-ened the range of fuel gas quality and main-tained NOx emissions over a wide torque range. LE models are rated for 2g NOx, but with engine tuning, the LE achieves 0.5g NOx emissions.

ULE

The Ultra-Low Emissions (ULE) model achieves the same 0.5g NOx emissions as the LE without requiring engine tuning. It is also available as a retrofi t to the LE, provid-ing a solution for non-attainment zones and maintaining maximum BHP.

Continual evolution, solid reputation

Facilities and packaging Oklahoma City, Oklahoma

• 232,200 sq ft (21,572 sq m) available for

manufacturing, warehouse, and testing

• Primary manufacturing and testing facility for

Ajax integral gas engine-compressors

• GE Oil & Gas’ primary packaging facility for

Ajax products

Facility information:

• Manufacturing: 108,000 sq ft (10,034 sq m)

• Warehouse: 116,000 sq ft (10,777 sq m)

• Offi ce: 8,200 sq ft (762 sq m)

• Cranes: (6) 1 ton, (5) 5 ton, (2) 10 ton, (3) 15 ton,

(3) 20 ton, (2) 30 ton, (2) 50 ton

Core Capabilities

• Ajax slow-speed packages

• Full manufacturing, assembly and testing

capabilities for all Ajax products

• Welding, electrical, pipe threading, plumbing

and assembly expertise

• Ajax assembly facility

• On-site engineering services

• Full engine testing capabilities

Imagination at work

Strong relationships drive strong results and better businesses. For more information, visit www.geoilandgas.com/ajax, call +1-844-RECIP-GE (International: +1 713-354-1299) or contact your local sales representative.

www.engagerecip.com © 2016 General Electric Company. All rights reserved.

GEOG_Ajax_Brochure-09-16