Industry Pain Points

High Water Content and High Mineralization Degree: The water content of oilfield associated gas exceeds 80%, and it contains highly corrosive ions such as Cl⁻ and Ca²⁺ (mineralization degree up to 50g/L). This causes scaling and clogging in traditional dehydration equipment, shortening maintenance cycles by 60%.

Severe Pressure Fluctuations: Wellhead pressure fluctuates drastically from 0.3MPa (low-pressure gas wells) to 10MPa (high-pressure gas wells), making conventional dehydration systems unable to operate stably.

Interference from Organic Sulfur and Heavy Hydrocarbons: Sulfur-containing compounds (e.g., methyl mercaptan) and C6+ heavy hydrocarbons poison molecular sieves. The service life of imported adsorbents is only 6-12 months, resulting in high replacement costs.

Energy Shortage in Remote Areas: Oilfields are mostly located in deserts/offshore areas with unstable power supply, leading to a 30% failure rate of electrically driven dehydration equipment.

System Overview

Through the “hypergravity separation – pressure energy utilization – sulfur-hydrocarbon synergistic adsorption” technology loop, Yipu Oilfield Wellhead Gas Dehydration System achieves:

• Zero Power Grid Dependence: 100% utilization of on-site energy from wellheads, suitable for extremely remote oilfields.
• Cost Reduction & Efficiency Improvement: Comprehensive costs over 5 years are 65% lower than TEG systems, with an investment payback period of <1.8 years.
• Digital Empowerment: The digital twin system optimizes operating parameters in real time, resulting in a failure rate of <1%.

Solution Approach

Yipu Oilfield Wellhead Gas Dehydration Solution

Module	Technical Highlights	Performance Parameters
Mineralized Water Treatment Unit	Ceramic membrane + ultrasonic anti-scaling, anti-scaling capability increased by 10x	Handles mineralization degree ≤100g/L
Pressure Adaptive System	Venturi pressure stabilizing valve, adapting to 0.3-12MPa pressure fluctuations	Outlet pressure fluctuation ≤±1%
Sulfur-Hydrocarbon Synergistic Adsorption Tower	Layered packing of silica gel and molecular sieves, sulfur/hydrocarbon resistance design	Methyl mercaptan ≤3ppm, dew point ≤-50℃
Off-Grid Energy Package	Solar PV + pressure energy power generation, enabling 100% off-grid operation	Daily power consumption ≤3kWh (for treating 50,000 Nm³ gas)
Digital Twin Platform	Real-time simulation of adsorbent saturation, optimizing regeneration cycle	Regeneration energy consumption reduced by 35%

Applicable Scenarios:

• Onshore/offshore oilfield associated gas treatment
• Instant dehydration at coalbed methane wellheads
• Gas gathering stations in tight gas fields

Technical Principles

Yipu Oilfield Wellhead Gas Four-Stage Dehydration Process:

1. Hypergravity Liquid Removal (Stage 1):The vortex acceleration separator generates 500G centrifugal force within 0.1 seconds, removing 95% of free water and solid particles, and adapting to a mineralization degree of ≤80g/L.
2. Pressure Energy Refrigeration (Stage 2):Uses wellhead throttling pressure difference to drive the ejector refrigerator, cooling the gas from 50℃ to 8℃ without electricity consumption, and reducing the dew point to -5℃.
3. Sulfur-Resistant Adsorption (Stage 3):Silica gel-molecular sieve composite bed:

• Silica gel prioritizes the adsorption of methyl mercaptan (removal rate ≥98%)
• Patented 3A-SH molecular sieves maintain a 5-year service life even at a sulfur content of 2000ppm

4. Intelligent Regeneration (Stage 4):Adopts wellhead associated gas self-heating regeneration (150-180℃), saving 80% more energy than electric heating.

Core Advantage

Advantage	Details
Customized on Demand	Meets special working conditions; provides professional non-standard customization
Low Cost	Adopts cyclic regeneration process; significantly reduces operating costs
High Stability	Dual-tower structure with small pressure fluctuation; low noise and continuous gas supply
Fully Automatic Operation	Easy to operate, reducing labor input; improves efficiency
High Safety	Presets multi-level safety protection measures; supports automatic alarm
Low Failure Rate	Maintains low failure rate after 10,000 hours; high durability with almost no maintenance required

Technical Strength

Leading Adsorption Dehydration Technology

Uses high-performance molecular sieve adsorbents with high water absorption capacity and resistance to corrosion by acidic gases (H₂S/CO₂), ensuring deep dehydration with a dew point ≤-70℃.

The original hot nitrogen regeneration process reduces energy consumption by 30% compared with traditional electric heating regeneration, and integrates a waste heat recovery system to significantly improve energy efficiency.

Modular and Customized Design Capability

Core equipment adopts modular prefabrication, supporting rapid deployment (installation cycle shortened by 50%) and adapting to diverse scenarios such as offshore platforms, onshore gas fields, and LNG pretreatment.

Can customize single-tower, dual-tower, or multi-tower parallel systems according to customer needs, with a treatment capacity ranging from 10,000 to 1,000,000 Nm³/d, flexibly matching gas fields of different scales.

Intelligent Control and Remote Operation & Maintenance

Equipped with a PLC+IoT intelligent control system, it real-time monitors key parameters such as pressure, temperature, and dew point, supporting fault early warning and automatic adjustment.

Through cloud-based big data analysis, it optimizes the adsorption-regeneration cycle, extends the service life of molecular sieves, and reduces operation and maintenance (O&M) costs by 10%-15%.

Energy-Saving and Environmental Protection Technology

Features zero-emission design for regeneration exhaust gas, complying with international environmental standards such as EU CE and US EPA.

Energy consumption is 25%-40% lower than that of traditional triethylene glycol (TEG) dehydration systems, helping customers achieve carbon emission reduction goals.

Long-Cycle Operation Reliability

Molecular sieves adopt anti-pulverization coating technology, with a service life of over 5 years, reducing replacement frequency.

Key components (e.g., valves, instruments) are selected from international first-tier brands (e.g., Siemens, Emerson), with a Mean Time Between Failures (MTBF) of over 100,000 hours.

Strong R&D and Engineering Experience

Possesses more than 19 patents and software copyrights in dehydration technology; the R&D team is led by doctors and has in-depth cooperation with universities and colleges.

Has over 1,000 successful cases worldwide, covering extreme working conditions such as high-sulfur gas fields in the Middle East and low-temperature environments in the Arctic.

Product Advantage Comparison

Indicator	Yipu System	TEG Dehydration	Refrigeration Method	Competitor Adsorption Systems
Dew Point	-50℃ (customizable to -70℃)	-30℃	-20℃	-40℃ (3 replacements per year)
Sulfur Resistance	No failure at H₂S ≤3000ppm	Requires pre-installed desulfurization	Not applicable	Poisoning at H₂S ≥500ppm
Energy Consumption	0.01kWh/m³ (off-grid operation)	0.2kWh/m³	0.15kWh/m³	0.08kWh/m³
Pressure Adaptability	0.3-12MPa without adjustment loss	Only applicable for 3-8MPa	Requires stable pressure	Optimal at 1-6MPa
Total Investment Cost	Low (no power grid/steam support required)	High (requires boiler + TEG)	Medium (high electricity consumption)	High (imported consumables)

Typical Case

Project Name: High-Pressure Gas Well Dehydration Station in Tarim Oilfield

Operating Conditions:

• Gas Volume: 80,000 Nm³/day, pressure fluctuating between 5-10MPa
• Water Quality: Mineralization degree 65g/L, H₂S 2500ppm

Dehydration Effect:

• Dew point stably reduced from +45℃ to -55℃
• Molecular sieves have been in operation for 4 years without replacement (imported products require annual replacement)

Economic Benefits:

• Saves 9 million RMB annually in TEG procurement and waste liquid treatment costs
• Achieves annual revenue of 500,000 RMB from pressure energy power generation