Oil, Gas & Chemicals-Upstream
Washington Division has engineered and constructed significant upstream production facilities and performed multiple studies and conceptual designs worldwide. Combined, these projects produce nearly one billion barrels per day (BPD) of throughput in climates ranging from the Alaskan and Russian arctic to Middle Eastern deserts.
Our expertise includes:
Gas/Oil Separation
We have have provided EPC (engineering, procurement, construction) services in several significant upstream oil production projects, and performed engineering studies and conceptual designs for new facilities.
For example, we were the engineering, procurement, construction and management contractor for the ARCO, Kuparuk River Field Production Facilities. This $3 billion project was designed to produce a total of 390 MMSCFD (million standard cubic feet per day) of gas and over 300,000 BPD of crude. The modular construction of the facility consisted of 301 modules and skids that were sea lifted to the site. This project exemplifies our ability to engineer and construct multi-billion dollar facilities utilizing innovative designs and technologies in remote environments under difficult labor conditions.
We have also been providing services for ExxonNeftegas Limited—including logistic configurations, modularization studies, and environmental and regulatory support—since 1995.
Sour Gas Treating
Washington Division is an industry leader in the concept of acid gas enrichment (AGE) accomplished in the primary gas treating unit or in combination with a dedicated AGE unit. Washington Division has engineered and constructed numerous major sour gas processing facilities throughout the world.
At the Burlington Resources Lost Cabin Gas Plant we were solely responsible for all aspects of grass-roots facilities’ engineering and construction, from conceptual design through commissioning.
We are known for our expertise and ability to select from the available processes and optimize technology for application to a given project.
Tail Gas Treating
Washington Division has engineered and constructed multiple units utilizing Shell Claus Offgas Treating (SCOT), ARCO’s tail gas process, Unocal’s UNISULF ®, and Cold Bed Adsorption designs. One of the world’s largest SCOT tail gas units was engineered and constructed by Washington Division.
We are industry leaders in applying existing technologies to achieve maximum sulfur recovery efficiency. For example, the SCOT Tail Gas Unit at ExxonMobil's LaBarge plant reduced total sulfur emissions to less than 100 ppm while increasing sulfur recovery to over 99.9%.
Gas Compression
Over 2.8 billion SCFD of gas compression facilities and several major projects have been designed and constructed by Washington Division. These facilities include
- transmission pipeline and storage field compressor stations
- field pressure maintenance facilities
- acid gas injection
- CO2 injection
- in-plant compressors.
- Our experience ranges from studies to engineering, procurement and construction.
CO2 Recovery
Washington Division has provided full EPC services for grassroot CO2 enhanced oil recovery (EOR) facilities, and conducted multiple studies for existing facilities using the expertise of our engineers. Major
considerations for CO2 recovery and CO2 EOR include:
- CO2 Recovery from Breakthrough Gas via Fractionation, Membranes and Solvents
- CO2 Recovery from combustion stack gases
- CO2 Dehydration
- CO2 Compression, Pumping, and Pipelining
Acid Gas Injection
Washington Division has applied its Acid Gas Removal and CO2/High CO2 gas processing experience to develop a market leadership position regarding Acid Gas Injection technology.
The expertise of our engineers in thermophysical property predictions of sour systems provides Washington Division a leading edge in the process development and equipment selection.
In one recent project, Acid Gas Enrichment was used to decrease the acid gas injectant volume by a 10-to-1 ratio, significantly reducing horsepower requirements for injection.
Sulfur Recovery & Handling
We have more than 30 years of experience in providing sulfur production facilities to our clients for natural and synthetic gas plants, refinery applications, and sulfur forming and terminal facilities.
Our engineering, design and construction capabilities cover multiple types of sulfur recovery designs including:
- Claus
- Claus with Oxygen Enrichment
- Cold Bed Adsorption®
- Tail Gas Treating
- Selectox®
- Redox – LO-CAT®, and SulFerrox®
We maintain a leading edge in the process design of sulfur production facilities incorporating the latest technological advances into our projects including:
- Oxygen Enrichment
- COs and CS2 Conversion
- Ammonia and BTEX Destruction
- High Intensity Burners
- Igniters and Pilots
Gas Storage Units
Over 20 gas storage projects have been designed and constructed by Washington Division. Our list of projects includes several different design approaches, such as:
- Free flow of gas from pipeline into the field
- Free flow of gas out of the field into the pipeline
- Compression of gas into field for high-pressure storage
- Compression of gas out of the field prior to return into pipeline
Natural Gas Liquids Recovery
In the 1940s, Washington Division designed and engineered its first NGL plant. We have designed facilities ranging from 96% ethane recovery to ethane rejection using a wide range of processes, including J-T, straight refrigeration, warm and refrigerated lean oil, and cryogenic turbo-expanders.
Washington Division has the technical know-how to custom design your liquids recovery process. We also have established relationships with technology providers and have the experience from actual plants to make economic design decisions quickly and accurately.












