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PWLS SIG

PWLS SIG. Area of Interest the “practical” definition, movement, and storage of E&P well log data. This group is essentially a cross-vendor, cross-product line user community for well log data store, data conversion, and data transfer products. Players

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PWLS SIG

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  1. PWLS SIG • Area of Interest • the “practical” definition, movement, and storage of E&P well log data. • This group is essentially a cross-vendor, cross-product line user community for well log data store, data conversion, and data transfer products. • Players • operators, service and software providers, government agencies, consultancies, and POSC.

  2. PWLS SIG • Active POSC members include: • Oil companies: ExxonMobil, Shell, Hydro, Statoil • Non-profit: US DOI, Norway NPD • Commercial: Baker Hughes, Flare, Halliburton/Landmark, Oilware, Paradigm, Pathfinder, Schlumberger • Other attendees included: • Oil companies: DONG (Denmark), Shell, Anadarko, BP, Burlington Resources, Oxy, Pioneer Nat. Resources • Commercial: LogTek (Norway), National Oilwell, PetroData, ROQC, Tellus Software, Adaptable Technology, DrillingInfo, GTS Geotech, Volant Solutions

  3. PWLS SIG • History • Evolved from PWLS project Phase 2 • PWLS Project published Version 1 standards in ’01 • 6 major types of acquisition well logging tools addressed • 3 major service companies involved • Classification • Good: based on broad taxonomy of property (measurement) types • Issue: taxonomy was proprietary • Issue: alternate classification was also adopted

  4. PWLS SIG • History • SIG Meetings started in ’03 • More players; more oil company players • Clear need to resolve classification issues • Focus shifted to oil company calculated • PWLS Version 2 released in ’03 • POSC now has rights to the property (measurement) type taxonomy • The alternate classification was eliminated • Class attributes were added to enhance searching • Joined and Interpreted curve mnemonics defined • Supported in PPDM V3.7 work

  5. PWLS SIG • History • SIG Meetings in ‘04 • Log / Service Classification use by Norway’s DISKOS (SINAS) described • Changes to joined and interpreted specifications proposed by Shell • Interest expressed in expanding the coverage of acquisition curve types • SIG and Vendor Meetings • BakerAtlas confirmed that RECALL support for PWLS will be upgraded from Version 1 to Version 2 in early ’05 • RECALL is a product in its own right and it is the also underlying engine beneath PetroBank from Landmark.

  6. POSC Standards & SIGs

  7. PWLS SIG • What’s Next? • Complete processing of Shell’s Change Requests • Expand Acquisition Curve Classification Coverage • More types of curves • Additional acquisition service companies • Improve user documentation and Web Service functionality • Continue work on Calibrated Image specifications • Q1 review of initial results

  8. Shell’s Change Requests • We try to balance needs of one organization with needs of industry as a whole. • General issues: • Level of granularity • Scope – Some of Shell’s requests are beyond current PWLS scope – These will be addressed later on. • Mnemonic spelling • We are in the process of reviewing detailed issues.

  9. PWLS Joined Curve Standards “Classification [Mnemonic] Description” • Acoustic_Slowness [AC] • Shear_Slowness [AC_SHEAR] • [AC_SHR_CAL] Calibrated Shear Acoustic Slowness • [AC_SHR_GP] Geophysical Shear Acoustic Slowness • Compressional_Slowness [AC_COMP] • [AC_CMP_CAL] Calibrated Compressional Acoustic Slowness • [AC_CMP_GP] Geophysical Compressional Acoustic Slowness • Acoustic_Impedence [AC_IMP]

  10. PWLS Joined Curve Standards “Classification [Mnemonic] Description” • Acoustic_Slowness [AC] • Shear_Slowness [AC_SHEAR] • [AC_SHR_CAL] Calibrated Shear Acoustic Slowness • [AC_SHR_GP] Geophysical Shear Acoustic Slowness • Compressional_Slowness [AC_COMP] {Shell may propose [DT]} • [AC_CMP_CAL] Calibrated Compressional Acoustic Slowness • [AC_CMP_GP] Geophysical Compressional Acoustic Slowness • Stoneley_Slowness [AC_STONE] • Acoustic_Impedence [AC_IMP]

  11. PWLS Joined Curve Standards “Classification [Mnemonic] Description” • Nominal_Borehole_Size [BIT_SIZE] • Caliper [CALI] • Bulk_Density [DEN] • [DEN_GP] Calibrated Geophysical Density • Gamma_Ray [GR] • Neutron_Porosity [NEU] • Bulk_Modulus [BULK_MOD] • Poisson_Ratio [PR] • Time [TIM_DEP] • Compressional_Shear_Velocity_Ratio [VP_VS]

  12. PWLS Joined Curve Standards “Classification [Mnemonic] Description” • {Concentrations} • Potassium_Concentration [K] • Gamma_Ray_Minus_Uranium [GRKT] • Thorium_Concentration [TH] • Uranium_Concentration [U] • Photoelectric_Factor [PEF]

  13. PWLS Joined Curve Standards “Classification [Mnemonic] Description” • {Resistivity} • Deep_Resistivity [RES_DEP] • Medium_Resistivity [RES_MED] Medium or Shallow • Micro_Resistivity [RES_MIC] • Formation_Resistivity [RT] • Flushed_Zone_Resistivity [RXO] • Spontaneous_Potential [SP]

  14. PWLS Joined Curve Standards “Classification [Mnemonic] Description” • {Resistivity} • Deep_Resistivity [RES_DEP] • Medium_Resistivity [RES_MED] Medium or Shallow • Shallow_Resistivity [RES_SHA]{Shell may propose [SHW]} • Micro_Resistivity [RES_MIC] • Formation_Resistivity [RT] • Flushed_Zone_Resistivity [RXO] • Spontaneous_Potential [SP]

  15. PWLS Interpreted Curve Standards “Classification [Mnemonic] Description” • Permeability [LPERM] • [LPERM_NET] Net Log-derived Permeability • Porosity [POR] • Effective_Porosity [POR_EFF] • [POR_NET] Net Porosity • Total_Porosity [POR_TOT] • Hydrocarbon_Saturation [SHYD] • Water_Saturation [SW] • Flushed_Zone_Water_Saturation [SXO]

  16. PWLS Interpreted Curve Standards “Classification [Mnemonic] Description” • Permeability [LPERM] {Shell may propose [PERM]} • [LPERM_NET] Net Log-derived Permeability • Porosity [POR] • Effective_Porosity [POR_EFF] {Shell may propose [PORE} • [POR_NET] Net Porosity {Shell may propose [PORNET]} • Total_Porosity [POR_TOT] {Shell may propose [POR]} • Hydrocarbon_Saturation [SHYD] {Shell may propose adding net, effective, effective-net, and flushed-zone} Water_Saturation [SW] • Flushed_Zone_Water_Saturation [SXO] {Shell may propose adding net, effective, and effective-net]

  17. PWLS Interpreted Curve Standards “Classification [Mnemonic] Description” • {Volume_Fractions} • Anhydrite_Volume_Fraction [VANHYD] • Clay_Volume_Fraction [VCLAY] • Coal_Volume_Fraction [VCOAL] • Dolomite_Volume_Fraction [VDOLO] • Halite_Volume_Fraction [VHALITE] • Limestone_Volume_Fraction [VLIME] • Sand_Volume_Fraction [VSAND] • Shale_Volume_Fraction [VSHALE]

  18. PWLS SIG • More • Overview Presentation • NPD Presentation • DISKOS Presentation • Demo Presentation

  19. Alan DonigerPOSC Chief Technology Officer24 Greenway PlazaSuite 1000-BHouston, TX 77046-2401+1 713 267-5124 phone+1 713 784-9219 faxDoniger@POSC.orghttp://www.posc.org

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