Accurate Inline Water Cut Measurement for Crude Oil Production
Real-time BS&W monitoring from wellhead to pipeline. ATEX/IECEx certified for Zone 1 & 2 hazardous areas.
The Challenge
Water in crude oil is the most common quality issue in petroleum production. It reduces the saleable value of crude, accelerates pipeline corrosion, and complicates downstream processing. Accurate, continuous measurement is essential at every stage — from wellhead to export terminal.
Revenue Loss
Water in crude oil reduces the net oil volume. Inaccurate BS&W measurement at custody transfer points leads to financial disputes and lost revenue.
Corrosion & Equipment Damage
Produced water contains chlorides and dissolved gases that corrode pipelines, heater treaters, and processing equipment when water content is not controlled.
Slow Manual Sampling
Grab sampling and laboratory analysis is slow, discontinuous, and unsafe in hazardous areas. Transient water slugs and separator upsets are easily missed.
Wide Range Requirements
Production conditions vary from low water cut (<1%) at custody transfer to high water cut (20–65%) during separator upsets and well testing.
How Zelentech Solves It
The ZT-100 Water Cut Analyzer provides continuous, inline measurement of water content in crude oil pipelines. Capacitance-based sensing delivers accurate readings across a wide range of water cuts — from trace levels at custody transfer points to high water content during production upsets.
Available in spool-piece (F-Series) and insertion probe (S-Series, I-Series) configurations, the ZT-100 fits pipes from 1″ to 48″ and handles pressures up to ANSI 1500#. ATEX and IECEx certification ensures safe installation in Zone 1 and Zone 2 hazardous areas.
Standard 4–20mA, HART, and Modbus RTU outputs integrate directly with existing DCS, SCADA, and PLC systems — no gateway or protocol converter required.
Low & High Range Coverage
0–25% (low cut, ±0.01% accuracy) and 0–65% (high cut, ±0.1% accuracy) in one product family.
No Moving Parts
Solid-state capacitance sensing with no consumables, no optical windows to clean, and no radioactive sources.
Fast Response
1-second measurement cycle detects water slugs and separator carry-over in real time.
Key Specifications
| Measurement Range | 0–25% or 0–65% water cut |
| Accuracy | ±0.01% (low range) / ±0.1% (high range) |
| Pipe Size | 1″ to 48″ (DN25 to DN1200) |
| Pressure Rating | ANSI 150# to ANSI 1500# |
| Certification | ATEX / IECEx Zone 1 & 2 |
| Output | 4–20mA + HART + Modbus RTU |
| Response Time | 1 second |
Recommended Products
ZT-100 F-Series
Full-bore spool-piece analyzer for mainline pipelines, LACT units, and high-accuracy custody transfer applications.
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ZT-100 S-Series
Compact spool-piece design for smaller pipelines and production monitoring where space is limited.
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ZT-100 I-Series
Retractable insertion probe for large-diameter pipelines. Install and remove under pressure without shutdown.
View product →Need a Water Cut Analyzer for Your Production System?
Tell us your pipe size, pressure class, and water cut range. Our engineers will recommend the right ZT-100 configuration for your application.
