Acid Buffer Tank Skid
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  • Acid Buffer Tank Skid

Acid Buffer Tank Skid


The acid‑fluid buffer skid is an integrated pressurized unit specifically designed for gas‑field operations such as gas production and produced‑water treatment, using field water as the working medium. It is tailored to meet the demanding conditions found in H₂S‑containing, high‑salinity gas fields, combining functions such as buffering, temporary storage, impact protection, vortex prevention, sand removal, and safe operation into a single compact unit. As the core buffering component of acid‑fluid and produced‑water treatment systems in gas fields, it ensures stable, safe, and corrosion‑resistant operation, thereby supporting the continuous and smooth performance of downstream processes.

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Detailed Introduction


The acid-liquid buffer tank skid is an integrated pressure-containing unit specifically designed for gas-field production and produced-water treatment applications, using field water as the working medium. It is tailored to the harsh operating conditions found in H₂S-containing, high-salinity gas fields and integrates Buffering, temporary storage, surge prevention, vortex prevention, sand removal, safe operation Integrating multiple functions into a single unit, it provides a stable, safe, and corrosion-resistant core buffer module for gas-field acidizing fluid and produced-water treatment systems, thereby ensuring the continuous and smooth operation of downstream processes.

1. Operating Condition Adaptation and Medium Buffering Function
Precise adaptation to gas-field operating conditions: For corrosive environments characterized by feed gas from gas fields such as Well Hejia 202—comprising 95.149% CH₄, 0.562% H₂S, and 0.596% CO₂—and high-salinity CaCl₂-type produced water with a salinity of 52,346.58 mg/L and a Cl⁻ concentration of 29,337.34 mg/L—this system achieves buffering, temporary storage, and pressure stabilization of acid fluids and produced water, thereby eliminating flow and pressure fluctuations in the upstream feed stream and providing stable operating conditions for downstream processing units.
Efficient gas–liquid separation: The vapor outlet inside the vessel is equipped with a mist eliminator, which effectively separates entrained liquid droplets from the vapor stream, preventing liquid carryover and ensuring safe vapor discharge and high liquid purity—meeting the safety operating requirements of sulfur-containing gas fields.
2. Structural Optimization and Anti-impact, Anti-vortex Design
Anti-impact and anti-vortex protection: A buffer plate is installed at the liquid inlet to significantly reduce the impact of the incoming fluid on the tank walls and bottom, thereby minimizing erosive corrosion; an anti-vortex device is provided at the liquid outlet to prevent sediment and impurities from the tank bottom from being drawn into the discharge pipeline, ensuring the stable operation of downstream pump units, valves, and other equipment.
Removable sand-removal structure: A flange-connected, removable sand-blasting pipe assembly is installed at the bottom of the tank, enabling periodic flushing and cleaning of sediment and sludge accumulated at the tank bottom. This prevents sediment buildup from reducing effective tank capacity and accelerating corrosion, while significantly reducing equipment maintenance complexity and downtime.
3. High-Corrosion-Resistant Materials and Safe Design
Material selection for resistance to wet hydrogen sulfide corrosion: The main structure is fabricated from Q245R (HIC) steel plate, 20 (HIC) seamless steel pipe, and forgings, meeting the requirements for hydrogen-induced cracking (HIC) resistance in wet H₂S environments and thus suitable for the corrosive service conditions encountered in sulfur-containing gas fields. Internal components, such as the sand-blowing pipe assembly inside the tank, are made of S31603 material, further enhancing acid resistance, salt resistance, and overall corrosion resistance and extending the equipment’s service life.
Comprehensive Safety Protection for All Scenarios: The skid is equipped with an operating platform and a straight ladder with guard cage that comply with GB 4053.1–4053.3 standards. The platform features a guardrail and toe board at least 1.2 meters high, while the straight ladder is fitted with a safety rope and fall-arrest device. A safety gate is installed at the entrance to ensure safe access for personnel performing elevated operations and equipment maintenance throughout the entire process. The treads of the operating platform are made of grating panels conforming to YB/T 4001.1, offering excellent slip resistance and durability.
Compliance Design: The equipment is designed, manufactured, and inspected in strict accordance with national and industry standards such as TSG 21-2016, GB/T 150.1–150.4, and NB/T 47042. All nozzles and openings are provided with integral reinforcement structures, and a manway is installed on the tank roof to facilitate internal inspection and cleaning, thereby meeting the safety requirements throughout the entire lifecycle of pressure vessels.
4. Integrated Skid-Mounted Integration Function
Skid-mounted integrated design: The acid-buffering tank, operating platform, piping, valves, instruments, and other components are fully integrated onto a skid, enabling factory prefabrication, complete skid delivery, and rapid on-site installation. This significantly shortens the on-site construction schedule and reduces installation costs.
Full-process maintainability: Manhole locations are optimally positioned to facilitate personnel access and internal cleaning; sand-blowing pipe assemblies, platforms, ladders, and other components are all designed with a modular, disassemblable structure, enabling convenient equipment inspection and maintenance and ensuring long-term stable operation.

Production Capacity       
The facility currently serves as a modern manufacturing base for specialized equipment, with a main building area of 11,700 square meters. It is equipped with a heavy-duty hoisting system capable of lifting loads to a maximum height of 22.5 meters and handling cold-rolled steel plates up to 100 mm thick, meeting the assembly requirements for offshore platform modules and large skid-mounted equipment. The workshop is equipped with 18 lifting units, providing a total lifting capacity of 410 tons, covering the entire workflow from welding and final assembly to testing. It is also equipped with an automatic ventilation and dust removal system and an intelligent safety monitoring platform, integrating heavy-duty lifting, precision assembly, and safety management into a single integrated system.

Exquisite Service      
With a customer-centric approach, our company adheres to the principle of “fast, efficient, and professional” after-sales service. Equipped with a fleet of specialized service vehicles and a team of experienced technicians, we provide comprehensive support, including on-site repairs and on-site maintenance. Through our 24/7 response system and extensive regional coverage, our service team can quickly arrive at the scene to ensure that products always operate reliably and safely.

Full-Cycle Operation and Maintenance Support 

For precise replacement of critical equipment components or comprehensive system maintenance, we strictly adhere to standardized service procedures, ensuring response times ≤24 hours (negotiable for remote areas based on actual conditions).

Equipped with a team of professional engineers and an original manufacturer spare parts inventory, we deliver end-to-end closed-loop management encompassing fault diagnosis, repair plan formulation, and on-site implementation.

Technical Support and Capacity Building

Provide customized technical training services covering product operation protocols, daily maintenance essentials, and fault prediction methods to help customers enhance equipment management capabilities;

Establish a 24/7 technical support hotline staffed by a team of technical engineers to provide real-time solutions for product application issues, with remote assistance or on-site guidance available upon request.

Quality Assurance

Production Capacity       
The facility currently serves as a modern manufacturing base for specialized equipment, with a main building area of 11,700 square meters. It is equipped with a heavy-duty hoisting system capable of lifting loads to a maximum height of 22.5 meters and handling cold-rolled steel plates up to 100 mm thick, meeting the assembly requirements for offshore platform modules and large skid-mounted equipment. The workshop is equipped with 18 lifting units, providing a total lifting capacity of 410 tons, covering the entire workflow from welding and final assembly to testing. It is also equipped with an automatic ventilation and dust removal system and an intelligent safety monitoring platform, integrating heavy-duty lifting, precision assembly, and safety management into a single integrated system.

Exquisite Service      
With a customer-centric approach, our company adheres to the principle of “fast, efficient, and professional” after-sales service. Equipped with a fleet of specialized service vehicles and a team of experienced technicians, we provide comprehensive support, including on-site repairs and on-site maintenance. Through our 24/7 response system and extensive regional coverage, our service team can quickly arrive at the scene to ensure that products always operate reliably and safely.

Full-Cycle Operation and Maintenance Support 

For precise replacement of critical equipment components or comprehensive system maintenance, we strictly adhere to standardized service procedures, ensuring response times ≤24 hours (negotiable for remote areas based on actual conditions).

Equipped with a team of professional engineers and an original manufacturer spare parts inventory, we deliver end-to-end closed-loop management encompassing fault diagnosis, repair plan formulation, and on-site implementation.

Technical Support and Capacity Building

Provide customized technical training services covering product operation protocols, daily maintenance essentials, and fault prediction methods to help customers enhance equipment management capabilities;

Establish a 24/7 technical support hotline staffed by a team of technical engineers to provide real-time solutions for product application issues, with remote assistance or on-site guidance available upon request.

Quality Assurance

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