The state-of-the-art 25-foot containerized DRA dosing skid is designed for the precise unloading and injection of Drag Reducing Agents (DRA) into crude oil pipelines, ensuring optimal operational efficiency.

Technical specifications:

Storage Tank: Stainless steel, 4000-liter capacity
Monitoring System: Continuous fluid level and temperature monitoring
Pumps: High-performance diaphragm and piston pumps for reliable circulation and dosing
Mixing System: Ensures consistent and homogeneous additive preparation
Air Compressor: Integrated to support all operational processes
Vegetable Oil Tank: Dedicated for system cleaning and maintenance
Modular Design: Facilitates rapid disassembly and easy transportation
Safety Systems: Equipped with advanced safety and protection features

The DRA dosing skid seamlessly integrates mobility, operational safety, and superior performance into a single compact and highly efficient unit, designed to meet the demanding requirements of modern pipeline infrastructure.

Technological installations for the storage of liquid ammonia consist of:

• storage tanks for anhydrous ammonia of any capacity. The tanks are made of stainless steel, electrically heated with thermal insulation;
• compressor units for ammonia vapors;
• with Ex control switchboards and I&C apparatus;
• sets of electric evaporators with complete equipment;
• reloading stations adapted to the requirements of TDT and to work in a potentially explosive zone, equipped with hermetic upper and lower unloading arms - liquid and gas phase. The arms are equipped with a nitrogen purge line, position sensors and safety fittings, e.g. emergency disconnection couplings. The upper position with lowered stairs is equipped with a protective basket for the operator and position sensors;
• control and measurement equipment and automation monitoring the flow, pressure and temperature of the process, enabling safe work with ammonia.

Standard operating parameters:

Medium: Anhydrous ammonia liquid and gas phases
Nominal working pressure: 25 bar
Maximum working pressure: 40 bar
Ammonia evaporation capacity: 5-200 kg / h
Handling capacity: 10-150m3 / h
Storage capacity: 5-200m3
Execution: ATEX

The scope of the delivery of the devices and their selection are adjusted individually to the project requirements.

Filling stations for the top loading of tanks with liquid sulfur consist of:

• service platform with lovered stairs equipped with a safety cage;
• pneumatic product shut-off valve;
• upper sulfur filler arm or arms with exhaust line, cone and tank overflow sensor. The arms are heated by steam or with electricity and are pneumatically controlled from the level of the platform, or by a remote control located on the loading cone;
• control and measurement equipment, including: flow meters, pressure and temperature sensors, grounding controllers etc .;
• measurement systems based on mass flow meters (with a heating jacket) and electronic management systems based on microload controller;
• double-jacket piping enabling continuous heating of the product in the pipeline with heating steam, together with specially made inspection openings of the pipeline.

Basic operating parameters of the top sulfur filling station:

The subject of the implementation was the modernization of the top-down loading station for liquid sulfur along with the construction of a new service platform, modernization of the heating steam line and installation of a measuring system with a mass flow meter and filling head, modernization and adaptation of the existing electrical and I&C installations and connection to the existing DCS system. The entire station was made in accordance with the applicable regulations of the Transport Technical Inspection in the field of NO Devices.

The scope of work included the dismantling of the existing liquid sulfur loading installation which did not comply with the current regulations of the Transport Technical Inspection. The newly constructed installation was to cooperate with the existing infrastructure (pumps, I&C metering, control, etc.). Therefore, the electrical installation of the newly built station was incorporated into the existing electrical installation of the facility.