Our team of highly skilled engineers provide complete design solutions for some of the most challenging pipeline systems in the world, both in-house and by managing subcontracts with specialised
Pipeline protection
Pipeline protection
In most parts of the world where oil and gas production takes place, there are many existing pipelines and cables on the seabed that must be crossed when installing a new pipeline. To prevent any damage to these existing pipelines and cables, crossing preparations must be performed before a new pipeline is installed.
Pipeline protection with mattresses
Protection is provided by mattresses, consisting of concrete blocks connected by steel or synthetic material. The concrete blocks are covered with special pads to prevent the pipeline from being damaged. Since the crossing protrudes above the level of the seabed, it is covered either by rocks (rock dumping) or by additional mattresses for protection. Allseas’ support vessels are able to install concrete mattresses using their remotely controlled subsea installation frame and her ROV-operated mattress installation frame.
Trenching underneath pipelines
Additionally, in some areas pipelines must be buried to protect them from near-shore wave forces, ship anchors and commercial fishing activities. Specialised equipment is used to dig a trench and then cover the pipeline. Allseas’ mechanical trencher Digging Donald creates a V-shaped trench underneath the pipeline using mechanical digging arms. The pipeline gradually sinks into the trench behind the machine. Remedial passes clear soil that has fallen back into the trench by means of strong jets of water.
Read more about pipeline design and engineering, pipeline installation, subsea installation, specialised pipelay operations and survey and subsea operations.
Pipeline installation
Allseas has installed over 20,000 km of subsea pipeline worldwide using S-lay technology, with diameters ranging from 2” to 48”. S-lay is characterised by
Subsea installation
The offshore industry is experiencing a continuous move into deeper waters, more remote and hostile environments and more complex field developments. This trend presents new
Specialised pipelay operations
Increasingly, oil and gas companies are prospecting and producing in areas that until recently would have been considered uneconomic or even impossible to explore.
Survey and subsea operations
Allseas has a comprehensive range of vessel-based remotely operated vehicles (ROVs) and survey equipment utilising the latest high-specification sensors and equipment.
Installation
Offshore installation varies with the type of development involved. Fixed platforms have the most work involved; jackets and topside decks need to be transported to the well location.
When oil and gas fields end production, their facilities need to be removed and disposed of (or recycled), a process known as “decommissioning”. Decommissioning of offshore structures is
Developing innovative new technologies and processes allows Allseas to stay ahead of the game by reducing cost and risk, while at the same time improving efficiency and operational performance.
Fabrication
Our fabrication unit employs more than 200 people and provides a variety of activities in support of Allseas’ offshore operations. Custom-made subsea structures such as pipeline
Renewable energy technologies that can drive the global energy transition will require a significant increase in the production of metals, some of which are scarce or only available in a few
Working every day at sea, Allseas witnesses first-hand the devastating effect plastic pollution is having on the world’s oceans and marine life. Plastic pollution is a global problem, and we
Comprehensive oil, gas, water, and solids solutions wherever you need them
Processing performance matters. Invest and derisk surface facility processing with services and solutions that
Production is about bringing a well to life and sustaining it for as long as feasibly possible. That takes soundly planned, accurately executed techniques with precision equipment to keep
Production technologies. Full service.
Our integrated production chemical technologies and services provide tangible benefits and assurance to oil and gas operations worldwide, regardless of
Supporting midstream—from field separation and gathering through processing and transmission
From routine maintenance and upgrades through facility design, construction, and operation,
Intervention expertise to maximize asset value
Value-driven performance, superior execution.
Halliburton delivers integrated well intervention through proprietary workflows, upfront
Cutting-edge technology and service
We deploy Halliburton ESP systems in the most extreme downhole environments. High temperature, immense pressure, fluid-borne abrasives, excessive gas,
Delivering high performancewith low maintenance
Versatile pumping systems for diverse applications
Horizontal pumping systems are efficient alternatives to positive displacement,
High-efficiency geothermal submersible borehole and surface pumps
Advanced technology in geothermal pumping systems
Halliburton specialists have over 20 years of experience in
High-efficiency dewatering systems for mining operations
Advanced technology in mining pumping systems
Our proven pumping systems’ technology helps extend run times,
Maintain water quality, meet regulatory compliance
NSF®-certified ESP systems for the modern municipality
Designed and tested in our state-of-the-art Research and Technology Center,
Next-generation technology in variable speed drives
Reliable and flexible with multilevel protection
The Summit ESP® adaptive control system, the newest generation of variable
360° coverage of well operations and 24/7 expert analysis
Analyze and understand well conditions
Summit ESP® well surveillance and monitoring service uses a holistic
Upstream Chemicals
Maximize asset value with Halliburton’s superior service, specialty chemicals and applications expertise.
Our Approach
Halliburton starts with a
Midstream Chemicals
Prevent and correct midstream failures with Halliburton midstream chemistry, system modeling, maintenance, and optimization.
Midstream-specific
Downstream Chemicals
Halliburton helps enhance downstream operations through water and process treatment programs that deliver specialized chemicals, analysis and more.
Contract Manufacturing & Wholesale
Halliburton provides chemical manufacturers and industrial customers with reaction manufacturing and blend tolling capabilities, including processing
Customized chemical solutions
Halliburton provides engineered chemical solutions to overcome well performance challenges.
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Custom-formulated solutions for
Subsea Completion and Intervention
Halliburton offers innovative subsea safety systems for applications in exploration and appraisal, completion, and intervention.
Subsea
Value-driven performance, superior execution.
Halliburton delivers integrated well intervention through proprietary workflows, upfront planning, and single-point accountability.
Mitigate the risk of sustained casing pressure
Halliburton customizes barrier and zonal isolation solutions to withstand the heavy demands of completion and production.
Halliburton slickline services
Halliburton provides full service slickline capability from basic completion intervention applications to advanced services.
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Well Intervention Software
Software services to increase your well performance
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Diagnose, design and deliver the best well interventions
To maximize asset
Coiled tubing equipment for well intervention
Coiled tubing is one of the most widely used tools in the well intervention sphere, with applications in all areas of the well life cycle.
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Hydraulic workover and snubbing for well maintenance
Halliburton Hydraulic Workover (HWO) units are the ideal well intervention solution for well maintenance, live well interventions, and
Downhole Tools
Halliburton delivers optimized high-performance downhole equipment.
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Customized tool solutions
Halliburton provides specialized downhole tools
Pumping and nitrogen equipment
Our pumping and nitrogen equipment fleet features a vast array of equipment, allowing us to select the right tool for the job.
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Capture critical data, drive efficiency, ensure safety
Halliburton’s proven data management system provides unprecedented lifecycle control of all joints on any industrial pipework
Move fluids and gases flawlessly
Halliburton can pump, filter, clean, and treat fluids at high, medium, and low pressures at a wide range of flow rates.
Advanced engineering
Address contamination effectively and safely
Halliburton removes contamination within any process system configuration, from carbon and stainless steel to the most exotic alloys.
Meet the most demanding requirements
Global specialists and research facilities provide a range of pre-commissioning, commissioning, cleaning, maintenance and decommissioning solutions.
Protect systems and pipework
Halliburton provides process specialists, technology, and services across multiple operational bases in every region of the world.
Complete,
Execute flawlessly in challenging environments.
Halliburton provides expert flow remediation, chemical injection, pre-commissioning, and subsea umbilical, riser, and flowline (SURF)
Streamline FPSO operations
From the shipyard to the field, Halliburton designs our integrated FPSO solutions to avoid supply chain bottlenecks and ensure on time leak-free startups.
Achieve seamless operations through the entire lifecycle
Halliburton provides a range of topside and subsea services to cover a liquefied natural gas (LNG) project from inception to end of
Reduce down time, ensure optimum performance
Through advanced technologies and integrated services, Halliburton can extend production runs, reduce energy costs, and extend asset lifecycles.
Sure™ Chemical and Gel Technology
Innovative solutions engineered to maximize transportation and production performance
Delivering assurance
Halliburton Pipeline and