Innovative gel solutions engineered for pipelines to maximize production performance.Download PDF
The Halliburton’s SureGL™ family of gels has been engineered specifically for pipelines to assure ultimate throughput. SureGL aqueous, hygroscopic and hydrocarbon-based gel systems have been successfully used around the world to maximize production performance in pipelines. Halliburton’s gel systems have a proven track record in meeting the toughest challenges with exceptional performance. SureGL gel systems provide unique solutions for pre-commissioning, flow assurance and decommissioning of pipelines and flowlines.
Highest amount of debris collected in Kilograms (kg)
Longest pipeline cleaned (ID 24”)
Most stringent cleaning criteria (% of oil in water)
In debris transportation applications, a gel system must have the ability to maintain a homogenous flow regime across a wide range of flow rates and linear velocities. Particulate matter should essentially be equally distributed within the fluid to avoid potentially high frictional losses and prevent debris deposition. Our SureGL family of products allows flexibility in flow velocities and minimizes debris deposition at low linear velocities.
Excessive quantities of paraffin wax or asphaltene can severely restrict flow in a pipeline. This can cause uncertainty in the piggability of the line. The first step of the remediation process should be the use of gelled fluids to suspend and remove any loose debris from the pipeline. Our SureGL family of products can remove large quantities of loose debris from the pipeline or flowline, resulting in significantly improved product flow and a reduction in pressure drop.
Gels can be incorporated into pig trains to enhance product separation in operational pipelines. Typically, a volume of SureGL will be contained between two or more pigs to provide a barrier between two products. The gel barrier provides enhanced separation and sealing between the fluids, and can be formulated to minimize cross contamination.
Long distance pipeline pigging operations are critical, and a common problem is excessive disc wear that can result in increased bypass as well as less effective cleaning and separation. As gelled fluids have excellent lubricating and sealing properties, they provide the necessary conditions to minimize disc wear and maximize the performance of the pig train.
Cleaning criteria for pipeline change of service or decommissioning are stringent, and staying within the requirements associated with these operations is challenging. Our SureGL family of products offers the versatility to design a solution to perform this service with the lowest possible risk while maintaining project deliverables within the stipulated time frame.
SureGL gel systems can be designed with a high static gel strength and high fluid viscosity, which allows for effective pipeline isolation with a stand-alone gel or when used in combination with mechanical pigs. Our SureGL technology can act as a barrier for sensitive metallurgy pipelines to prevent seawater corrosion. These gels can also be based on hygroscopic fluids such as glycols or methanols to minimize water ingress into dry pipeline systems, providing hydrate inhibition characteristics for a variety of pre-commissioning and maintenance operations.
Pipelines without pigging facilities, and with restrictive bend radius and severe flow restrictions, can be challenging to pig using traditional mechanical pigs. SureGL gel pig can be used for a variety of applications, either on their own or combined with other gels from the SureGL family, to provide an effective solution. Gel pigs can negotiate large-diameter restrictions, and can be used in pipelines that do not have pig launch or receipt facilities.
Gas pipeline systems often develop corrosion products commonly referred to as “black powder” which is a combination of fine corrosion products that can become mobilized within the pipeline and cause damage to downstream facilities, such as valves and rotating equipment, and also carry over into process systems. Due to its typically small particle size and high specific gravity, black powder may be difficult to remove with conventional gel systems. The SureGL family of products allows flexibility in the design of a debris transportation gel - both in terms of the base carrier fluid (hydrocarbon, aqueous or hygroscopic) and the viscosity/surface tension of the final gel product.