A GoM operator witnessed a leaking 6” pipeline. Upon repairing the visual leak and attempting to perform a successful hydrostatic pressure test a second non-visual leak occurred, ultimately resulting in extended production loss.

In order to perform a second assessment and bring production back online, the pipeline assessment required a 100% fluidpacked volume of seawater to ensure an oxygen-free environment.

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 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.

Developed an integrate-able tool for operator to proactively monitor well operations real-time to identify potential cause of suboptimal production and possible well integrity issues.

Developed a standalone tool for the operator to perform tubing/tree material screening based on the field specific reservoir fluids, well configuration and operating conditions.

Developed an integrate-able tool to accurately calculate the leak rate of SCSSV which considers the existence of liquid and gas in the wellbore, wellbore cooldown and USV leak during the routine SCSSV test.

Developed and supported the integration of the flowline virtual metering system utilizing the GATE Prho™ engine.

GATE was engaged to evaluate the current condition and remaining life of the subsea jumpers and flowline of a deepwater oil and gas facility in the Gulf of Mexico.

The subsea field, which was comprised of multiple oil wells, was produced at a Tension Leg Platform (TLP) with a nominal capacity to produce 100,000 barrels of oil and 50 million cubic feet of gas per day. The subsea and topsides facilities were designed to operate with an expected maximum carbon dioxide (CO2) concentration of 0.15 mole percent from any given producing well.

After an in-line inspection of a pipeline in West Africa, a client discovered significant wall loss in the first three miles of the line. The tool also returned significant wax deposits, casting doubt on the current wax management efforts in place.

The wells producing to the pipeline historically produced H2S; however, the worst offenders were shut-in quickly after it was discovered that they were producing extremely high concentrations of the sour gas.

As part of a recent asset acquisition due diligence, GATE was asked to deliver a third party review of the condition of the asset and remaining production life of a floating production system and a fixed jacket.

GATE developed a standardized work process to evaluate the current condition, potential production bottlenecks and future operating expenditure (OPEX) associated with the brown-field producing asset.

The review of the remaining cathodic protection (CP) life of a Gulf of Mexico tension-leg platform (TLP) was undertaken to evaluate the ability of the current systems to support a 20-year life extension. At the same time, the opportunity to include non-destructive riser testing into the life extension program was also identified.

During the fabrication of the subsea boarding valve skid for a major offshore platform in the Gulf of Mexico, the fabricator purchased several large forgings. These large forgings, from 8” to 12” in diameter, were to be machined into block valve bodies rated to 15,000 psig. As part of the agreed-upon Inspection and Test Plan, the mill certificates for the forgings were reviewed by the fabricator and by the company inspector.

Developed standalone tool for operator to proactively monitor flow assurance risks based on the field specific reservoir fluids, subsea infrastructure and current operating conditions.

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.

We partnered with a major operator to develop and implement customized strategies to ensure well facility integrity by mitigating unforseen failures to maximize safety and uptime while minimizing cost.

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.

Provided complete hydrate blockage remediation support from initial onshore Engineering Assessment to execution planning and eventual successful field execution using nitrogen.

A Gulf of Mexico (GoM) operator in the process of decommissioning one of its fields requested the engineering assessment of a blockage existing in their flowline-riser. The reservoir fluid characteristics and the field’s operational history were extensively reviewed. The review indicated hydrates to be the likely cause of the blockage.

Custom solvent products and flow assurance engineering provide total approach to plugged GoM pipeline.

LiquiGel® pig maps internal pipeline geography and provides target area for remediation pill with no shut-in required.