▸ Water Injection Engineering
Water Injection Engineering
The work process begins with understanding the water chemistry – which drives the souring, scaling, and corrosion aspects of the design. Understanding the voidage replacement requirements, expected availability of the system – the topsides throughput can be arrived at, and then working with completions a topsides pressure estimate is calculated. This information begins to form the basis of design in which novel technologies can be identified such as high pressure pumps or Oxygen Removal units.
Overall, GATE is instrumental in bringing definition to the project based on system engineering principles, time tested production chemistry, true offshore commissioning & startup experience, and operational flow assurance techniques.
Water Injection Services & Products
Viking uses our systems engineering, materials and integrity management, commissioning and operating knowledge of onshore and offshore water injection systems around the globe to reach a solution that is optimized to the need of each Client and each asset.
Injection into hot and high-pressure deep water reservoirs is often constrained by concerns associated with fracture propagation.
Injection program optimization encompasses multiple disciplines including reliability and maintenance, asset integrity management, production chemistry, operations and reservoir engineering.
Viking utilizes provides water injection modeling services including integrated flow modeling, souring and scaling modeling and water injection performance modeling.
The design of water injection systems is a key aspect of optimizing the economic return of any development.
Key Projects Involving Water Injection
GATE has been involved with major offshore water injection projects around the globe.
GATE was involved early in the seawater treating design basis to influence / impart operability and commissioning efforts. From the design phase, GATE became responsible for dynamic commissioning and start-up during the offshore phase.
GATE provided seawater treating equipment process, materials, corrosion, chemical, and commissioning / start-up expertise. The scope included shaping the design of the seawater treating equipment and providing commissioning leadership and start-up expertise. The equipment included a Minox and Sulfate Removal Units.
GATE was responsible for developing the overall Aseng Water Injection System Basis of Design.
GATE provided process / commissioning expertise in the pre-commissioning and dynamic commissioning of the Tahiti II deaeration system (100,000 BWPD Minox).
Scope included planning for the offshore portion of the commissioning and offshore execution with the pre-commissioning contractor including confirmation of design, heat and mass balancing, and performance testing.
GATE was requested to determine the potential risks involved in waterflood for the Neptune and Shenzi fields as a means to determine whether waterflood was a viable option for enhanced oil recovery. Based on this, GATE developed a waterflood philosophy document that details the problems and possible mitigation procedures for BHP’s use in determining whether or not to waterflood.
GATE provided overall seawater treating and chemical engineering expertise during the design and offshore commissioning phases of the Bonga Project including both topsides seawater treating as well as subsea injection / start-up.
A client operating domestically and internationally needed expert technical support for materials and corrosion control. Their senior management came to Viking for a proposal to provide a variety of consultancy services to cover the following essential needs: materials selection, failure analysis, corrosion monitoring, technical assurance for procurement, and risk assessment.
A large and complex offshore field in the Middle East was suffering from multiple leaks due to corrosion in the presence of high levels of CO2 and H2S in the production, seawater injection, aquifer water injection and produced water injection systems. This was resulting in excessive chemical injection expenditures and was impacting field revenues and uptime. The large, shallow water field consisted of several hundred wells and a complex hub and spoke infrastructure.