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What is Mass Spec Chemical Profiling? FIT's new
dq1000 "Divining Quad" is a revolutionary new concept in Petroleum
Geochemistry and the first commercially available implementation of Mass
Spectrometry for on-site, real-time mud gas analysis and logging.
Conceptually, the dq1000 is similar to conventional equipment (i.e., hot-wire
+ GC), in that it continuously analyzes volatiles extracted from the drilling
mud and correlates them with depth. But here the similarity ends. At the
heart of the dq1000 is a quadrupole mass analyzer which, in addition to performing
the usual Total Gas + C1-nC5 analysis, is capable of detecting C6-C13
hydrocarbons (i.e., hexane, heptane, octane, etc.); distinguishing among
paraffins, naphthenes and aromatics; and monitoring a variety of
water-soluble species such as acetic acid, toluene and benzene, and
inorganics including hydrogen, helium, nitrogen, carbon dioxide, oxygen,
argon and sulfur-bearing compounds. Correlation of these geochemical
indicators with available drilling parameters and lithologic data allow
real-time evaluation of Pay, Wetness (e.g., Pixler Ratios), Petroleum Type
and Quality, Reservoir Compartmentalization, Fluid Contacts, Seals, etc.
The Divining Quad is a portable, fully-automatic, stand-alone analyzer. Its
modest size, weight and electrical requirements facilitate deployment in even
the most restrictive environments. Sensor inputs on the dq1000 monitor
penetration, circulation, and pump strokes (any of which can also be read
from a WITS-enabled local network) to derive Depth, ROP and Lag for the
preparation of geochemical logs. While drilling, analytical results may be
viewed on-screen locally or remotely and are always available for immediate
LAS import into standard logging graphics packages. Bi-directional
communication can be enabled over both LAN and the Internet.
The Divining Quad is user friendly requiring minimal instruction for setup,
operation and routine maintenance. In field trials, the system has produced
continuous, high quality data with minimal operator intervention for months
at a time. Unlike FID detectors used in other gas analyzers, no auxiliary
gases are needed thereby reducing costs and safety concerns. Mass Spec
Analysis eliminates HC/CO2 interference - a common problem with many
detectors leading to serious underestimation of hydrocarbons in some cases.
The dq1000 accurately distinguishes mud gas from atmosphere allowing
automated (and remote) monitoring of gas trap/extraction line performance.
Optional two port operation allows evaluation of hydrocarbon recirculation
and potential mud additive interference.
Discriminates:
- C1-C13 Hydrocarbons
- Paraffins
- Naphthenes
- Aromatics
- Organic Acids
- Inorganics: CO2, He,
N2, O2, H2S, H2, etc.
- Mud Additives
Real-Time Applications:
- Pay
- Petroleum Type
- Compartmentalization
- Fluid Contacts
- Seals
DQ1000 Wellsite Chemical Profiler Specifications:
- Dimensions: 26in x
7.5in x 15in
- Weight: 61 lb
(Portable)
- Power: 85-264 VAC
(3.0-1.5 Amp); 47-63 Hz (International)
- Network: LAN and
Internet Enabled
- Sensors: Depth,
Circulation, Pump Strokes (3)
- Cycle Time: ~15sec -
6min (2 min. nominal)
- Analysis: Dual
(differential) or Single Port Gas Stream
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