Wellsite mud-gas analysis

The mass spectrometer built for the wellsite.

Spec is a fully automated, continuous-flow gas analyzer that reads formation fluids straight out of the drilling mud. The flagship of our wellsite gas-analysis suite, it correlates comprehensive gas data with drilling parameters over WITS to build a real-time depth profile of your well. Deployed globally.

SPEC · CONTINUOUS SCAN● LIVE
Scanning · hover a peak to identify
220406080100120140m/z (amu)H₂CH₄N₂C₂H₆C₃H₈
0 sFull-spectrum cycle time
2–0 amuMass range
0 ppbDetection limit, down from 100%
0 lbsField-portable footprint
Meet Spec

Formation evaluation, straight from the drilling mud.

Mud-gas analysis reads the formation fluids entrained in drilling mud while drilling. It is one of the most cost-effective pieces of information available for formation evaluation.

The Spec mass spectrometer, an orange and black field unit with laptopSPEC · FIELD UNIT WITS LIVE40 s cycle2–140 amu

One box. The full gas picture, every 40 seconds.

Spec is a mass spectrometer designed specifically for wellsite mud-gas analysis in real time. As a fully automated continuous-flow analyzer, it collects comprehensive gas data and correlates it with drilling parameters received over WITS to create a live depth profile of the well.

Its easy setup, standalone and robust design, and minimal oversight requirements make it the ideal choice for gas analysis on any pad, in any basin.

  • Fully automated
  • Continuous flow
  • WITS integrated
  • Standalone & robust
  • Easy setup
  • Minimal oversight
Applications

From exploration to production, conventional to unconventional.

One continuous gas record answers questions across the entire life of the asset, and across every kind of resource play.

01

Petroleum type & quality

Geochemical fingerprinting across exploration, development, and production wells.

Reservoir
02

Fluid contacts & pay proximity

Locate fluid contacts, near-miss zones, and water saturation in real time.

Reservoir
03

Porosity, permeability & fractures

Characterize porosity and permeability, and map faults and fracture networks.

Reservoir
04

Compartmentalization & seals

Identify compartment boundaries, sealing intervals, and low gas shows.

Reservoir
05

Reservoir fluid composition

Compositional data that correlates directly with laboratory PVT analysis.

Reservoir
06

Sweet spots & geosteering

Spot sweet spots in unconventionals with potential for real-time geosteering.

Operations
07

Improved well completions

Compositional depth profiles inform stage placement and completion design.

Operations
08

Bit wear detection

Gas signatures reveal bit wear before it becomes a costly trip.

Operations
09

Overpressure detection

Early warning of overpressured zones while drilling ahead.

Safety
10

Problem gas detection

Track sulfur species like SO/SO₂, COS, CS₂, and H₂S before they become hazards.

Safety
11

Geothermal wells

Full inorganic gas analysis suited to geothermal exploration and development.

Specialty
12

Helium wells

Direct helium measurement at mass 4, with no chromatography required.

Specialty
Capabilities

Everything a chromatograph does. Plenty it can’t.

No chromatographic separation, no carrier gas, no calibration gas, no combustion. Just a complete gas picture from mass 2 to 140.

Total gas and C1–C10, with the aromatics GC misses

  • Total gas and C1–C10 hydrocarbons, measured continuously.
  • Distinguishes alkanes, cycloalkanes, and aromatics.
  • BTEX compounds: benzene, toluene, ethylbenzene, xylene.
  • Water-soluble organic acids, including acetic acid.
  • Standard gas ratios computed live: Pixler, wetness, balance, character.
Specifications

Lab-grade analysis in a 45-pound box.

Small enough to ride in a pickup, tough enough for the pad, connected enough to watch from the office.

SPEC · TECHNICAL DATASHEETFull brochure
Dimensions
24″ × 7.5″ × 14″
Weight
45 lbs
Power
100–240 VAC, 50/60 Hz
Cycle time
40 s
Mass range
2–140 amu
Dynamic detection range
100% to 10 ppb
Telemetry
WITS enabled · internet connected
Data output
LAS file + real-time WITS stream
Relay I/O
Three 24 VDC relay inputs and outputs
Sensor input
One 4–20 mA external sensor input
Sample flow required
2 scfh (1 lpm), clean and dry

Data profile viewable onsite and remotely · output as LAS file and real-time over WITS

FAQ

Spec, common questions.

What is included when I rent Spec?

A Spec rental covers the mass spectrometer, sample conditioning, WITS integration and remote monitoring, set up and supported through our trained mud-logging service partners. Tell us about your well and we will scope it and quote it for you.

Do I need a mass-spectrometry specialist on the rig to run it?

No. Spec runs fully automated and can operate unmanned, with continuous self-diagnostics and remote monitoring over the internet. Because it is deployed through trained mud-logging partners, your crew does not need MS expertise.

What data does Spec output, and how does it reach my mud logger?

Spec writes LAS files and streams a real-time WITS feed, viewable onsite and remotely. The live depth profile flows straight into the Live-Log platform alongside the rest of your well data.

Does Spec need carrier gas, calibration gas or other consumables?

No. There is no chromatographic separation, no carrier or calibration gas and no flame during measurement. Calibration is semiquantitative under atmospheric nitrogen, with minimal drift over months of operation.