Geochemical Laboratory Analysis Services

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Weatherford Laboratories and Isotech Laboratories offer complete analytical services in the field of petroleum geochemistry. These services consist of detailed molecular fingerprinting  technologies that include high resolution gas chromatography, biomarker analysis by GCMS, and compound specific stable isotope analysis for oils, extracts, produced liquids, as well as mudgas, produced gas and stray gas.

With our global network of laboratories and staff, we offer analytical and interpretive services covering the entire spectrum of organic geochemistry. These services include rock and oil screening analyses such as total organic carbon (TOC), programmed pyrolysis, and vitrinite reflectance, to detailed analytical services like mud gas composition, fingerprinting of rock extracts and oils, carbon isotopes, and biomarker assessments. 

Results from these analyses can be applied in many ways, ranging from the simple assessment of gas quality, to basin wide characterization of oil-source rock correlations, to assessment of reservoir compartmentalization and production allocation. Undiscovered reserves in prolific, mature basins and bypassed petroleum in developed fields are key targets for increasing reserves at minimal cost. Geochemical tools can dramatically improve discovery and development success by identifying and characterizing these targets in both conventional and unconventional systems.


Analyses and Services

Using proprietary instrumentation, the geochemists at Weatherford Laboratories are able to evaluate geochemical properties to identify pay zones. 

Our specialized services in exploitation include pay zone identification and confirmation, and oil quality assessment prior to well completion. Assessment of reservoir continuity, production allocation, and EOR evaluation are also available using oil samples and require no well shut-ins.

We have developed many custom methods for geochemical analysis.  These range from selective cleaning strategies for cuttings samples, solvent extraction procedures for recovery and preservation of light hydrocarbons, separation of petroleum into saturate and aromatic fractions by MPLC, as well as molecular level GC, CS-IRMS, GCMS and GC-MSMS analyses for fingerprinting and biomarker analyses, to name just a few.

Catalog of Available Geochemical Laboratory Analyses & Services*

*This catalog does not include all available analyses
 
GENERAL PREPARATION
  Grinding and Homogenization (for 60 mesh grain size; <2 grams)
  Water Washing (for clean-up of water based drilling mud; < 25 g)
  Solvent Washing (for clean-up of oil or synthetic based drilling mud; < 25 g)
  Preparatory Extraction of rock samples (for removal of OBM/SBM, extract not retained)
  Sample Lithology Picking (to obtain contaminate free samples)
  Centrifuging
  Kerogen Isolation by acid digestion and sink/float (per 20 grams rock)
  Kerogen Concentration by acid digestion (per 20 grams rock)
  Photography
  Artificial Maturation
  PYROLYSIS, TOC, & CARBONATE ANALYSIS
  Total Organic Carbon (TOC) LECO® C230 
  Programmed Pyrolysis by SRA (Source Rock Analyzer) or Rock-Eval® 
  Programmed Pyrolysis with TOC by SRA (Source Rock Analyzer) or Rock-Eval® VI  
  Programmed Pyrolysis w/TOC & Carbonate by Rock-Eval® VI 
  High Temperature Programmed Pyrolysis by Rock-Eval® VI 
  Carbonate Carbon
  Total Carbon
  Fischer Assay
Kinetic Analysis - 5 temps (extracted rock, kerogen, and asphaltene) (Additional cost for Kerogen Concentration)
 MICROSCOPY: VITRINITE REFLECTANCE, TAI, VISUAL KEROGEN ANALYSIS
Vitrinite Reflectance, Visual Kerogen, and Thermal Alteration Index (package includes acid digestion & all related prep work)
  Whole Rock Vitrinite Reflectance
  Petrographic Photography
  Maceral Point Count Analysis (~500 counts - includes preparation)
  Slide & Plug Preparation (only)
  GAS COMPOSITION and GAS ISOTOPE ANALYSIS
GC Compositional Analysis of Headspace or Mud Gas from  IsoJar®, canned cuttings, SWC, gas bags, or IsoTubes® - __includes C1-C5, C6+, CO2, CO, Ar+O2, N2, and H2
  Extended Compositional Analysis - includes C1-C5, C6+, CO2, CO, Ar, O2, N2, H2, and He
  Compositional Analyses of Macerated Cuttings or SWC - includes C1-C& CO2
Carbon and Deuterium Isotope Analysis:  13C/12C (δ13C) and 2H/1H (δD) gas components (Off-line Prep./Dual Inlet M.S.)
Carbon Isotope Analysis 13C/12C (δ13C) analysis of gas components only (Off-line Prep./Dual Inlet M.S.)
  Carbon Isotopes of Gas Components - per component - GC - C - IRMS (On-line)
  Carbon Isotopes of Gas Components - per component with enrichment
  Deuterium Isotopes of Gas Components – C1 or C- per component - GC - P - IRMS (On-line)
Sulfur Isotope Analysis of H2S; requires IsoTrap
  ISOTOPE ANALYSIS
Carbon Isotope Analysis of Liquids or Solids (saturate, aromatic, resin, asphaltene, whole oil, whole rock, extract or kerogen)
Deuterium Isotope Analysis of Liquids or Solids (saturate, aromatic, resin, asphaltene, whole oil, extract or kerogen)
Sulfur Isotope Analysis of Liquids or Solids (saturate, aromatic, resin, asphaltene, whole oil, whole rock, extract or kerogen); requires Sulfur %
  SOLVENT EXTRACTION, SEPARATION, QUANTITATION
Solvent Extraction (non-quantitative) - soxhlet, ultrasonic, liquid-liquid
Solvent Extraction (quantitative) - soxhlet, ultrasonic, liquid-liquid
Light Hydrocarbon Extraction (non-quantitative) for Gas Chromatography [QEX2]
Light Hydrocarbon Extraction (quantitative) for Gas Chromatography [QEXQ]
  Quantitative SARA Analysis (SAR by open column chromatography and asphaltenes by IP143)
  Olefin Removal from Saturate Fraction (for removal of OBM)
  Whole Oil SARA (includes Whole Oil GC for characterization of topped components)
  Medium Pressure Liquid Chromatography (MPLC) - semi quantitative
  Biomarker Preparation
  Molecular Sieving of Saturates
  Asphaltene Quantification by IP143
  Quantitative Evaporation of Solvent
  GAS CHROMATOGRAPHY
  High Resolution Gas Chromatography for Whole Oil (with internal standard) or Extracts
High Resolution Gas Chromatography for Whole Oil or Extracts for Reservoir Continuity or Production Allocation (without internal std.) includes interpretation
  High Temperature Gas Chromatography for Wax Analysis (C60+)
  Thermal Extract Gas Chromatography
  Pyrolysis Gas Chromatography
  Microscale Sealed Vessel (MSSV) Analysis (Tube Prep Extra)
  High Resolution Gas Chromatography for Saturates or Aromatics
  GAS CHROMATOGRAPHY/MASS SPECTROMETRY
  Saturate or Aromatic GCMS Biomarkers
  Whole Oil or Whole Extract GCMS Biomarkers
  High Resolution GCMS on VG AutoSpec
  Quantitative Diamondoids - whole oil or saturate fraction
  High Resolution GCMSMS on VG AutoSpec
  Compound Specific Isotope Analysis (CSIA) - whole oil/extract or saturate/aromatic fractions (s)
  GCMS Alkyl Benzene Analysis (C8-C9 components for reservoir continuity and production allocation)
  BULK PETROLEUM ANALYSES (Thermodynamic Properties)
  API Gravity
  Iatroscan (s)
  Kinematic Viscosity/Density (per temperature) (s)
  Pour Point (s)
  Cloud Point (s)
  TAN-Acid Number, Color Indicator or Titration (ASTM D974) (s)
  Wax Content in Oil (UOP46) (s)
  % Water Content (Karl Fischer) (s)
  ELEMENTAL and SULFUR ANALYSIS
  CHONS (kerogen, whole rock, whole oil or asphaltene) (s)
  Nickel/Vanadium (s)
  per additional element (s)
  Iron (s)
  Sulfur % (s)
  WATER ANALYSIS
  Anions, Cations, Metals, pH, Resistivity, Conductivity, Specific Gravity, TDS
  SUPPLIES for collecting cuttings in cans, bottles, isotopes, or high pressure containers
  Disposable IsoTech® IsoTube® Gas Cylinders (includes HazMat box - box of 25)
  Gas Manifold for Collection of IsoTube®
  Wellhead Sampler for IsoTube®
  IsoTubes® with RFID™ chip (for use with IsoTube® AutoLoader™ - 1 box of 25)
  AutoLoader™ - Automated IsoTube® Sampling Device
  IsoJar® Headspace Container (for gas analysis - box of 20)
  IsoTrapTM
  IsoTrapTM Sampler
  IsoPakTM – (box of 20)
  IsoFlaskTM  -  (each)
  Extra Hazmat shipping container
  INTERPRETATION 
  Executive or Detailed Interpretations

 


Results from geochemical analyses can be applied in many ways, ranging from the simple assessment of gas quality, to basin wide characterization of oil-source rock correlations, to assessment of reservoir compartmentalization and production allocation. 

This often reduces petroleum exploration and development risks or guides development and production decisions in ways other data can't.