INTRODUCING THE NEW GC-TRACER
 Imagine the ability to accurately identify and analyze gas measurements without the drawbacks associated with a traditional agitator gas trap. GC-TRACER allows the user to make knowledgeable, fast decisions by providing accurate petrophysical and geosteering data.
GC-TRACER is the latest development in Weatherford.s quantitative gas detection product line. It represents a major advancement in surface gas detection and its application to formation fluid evaluation. Utilizing our patented membrane based gas measurement technique; the GC-TRACER has the ability to distinctly identify, quantifyand analyze hydrocarbon components in any drilling fluid. The GC-TRACER is the most flexible and accurate gas measurement technique available at wellsite, allowing the user to pick casing points, formation tops and pay zones with remarkable precision.
Benefits:
•
Accurate reservoir fluid type identification.
• High-resolution fluid CONTACT US identification.
• Identification of formation boundaries and unconformities.
• Potential for cost reduction as an alternative to extensive wireline logging or RFT sampling.
• Real-time fluid characterization for the
analysis of compartmentalization and
source proximity data.
Advantages:
• Closed flow system - no gas trap. Greater extraction efficiencies
Faster elution times.
• Truly quantifiable mud gas analysis. Sharper spatial and temporal resolution.
• Flexible installation.
 The GC-TRACER extracts hydrocarbons and non-hydrocarbons by using a probe inserted directly into the drilling fluid. The probe houses a semi-permeable membrane, which extracts gases as a result of the difference in partial pressure across the membrane. This difference in pressure allows each gas component, whether free or dissolved, to permeate across the membrane. The membrane is continuously swept with carrier gas, transporting the components to the GC-TRACER while maintaining the pressure differential.
Compact ExP Design:
•
Gas Chromatograph & Server located in
ExP enclosure with accurately maintained
ambient conditions.
• Enclosure situated 3m from probe providing
shortest possible transit times, reducing and
lag providing immediate response.
•
Automated calibration procedure with built
in calibration gas cylinders
Fast & Accurate Gas Chromatographic Analysis
 Hydrocarbon Evaluation:
• C1 to C8 (70 secs) with C1 to C10 (135 secs).
Analysis of Aromatics:
• Benzene, Toluene, Ethylbenzene & Xylene.
Non-Hydrocarbons:
• CO2, N2.
The Latest Development in Wellsite Mud Gas Analysis:
• Unique semi-permeable membrane technology
for gas extraction.
•
Avoids all the problems associated with gas
traps and mechanical agitation.
 • Slim probe design, allowing greater ease of
deployment in flowline at bell nipple.
• Heated sample lines from point of extraction to
analysis, ensuring excellent resolution of
heavier components.
• Custom peak integration alogarithms
and calibration software.
The GC-TRACER can be integrated with the majority of rig systems and 3rd party Mud Logging services. As a communication protocol GC-TRACER uses WITS 0 over TCP/IP or RS422. The compact design also lends itself to ease of installation in even the most complex of surface flow systems.
The system and well are monitored 24 hours a day by a onsite GC-TRACER analyst. Each analyst is involved in the project from start to finish, providing a seamless service from sale to delivery. They also provide a detailed analysis and interpretation of the results in post well support.
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