Candidate Screening

• Define formation evaluation problems and objectives
• Establish reservoir properties (rock, fluids)
• Estimate NMR fluid properties
• Establish NMR suitability

• Process raw echoes (time and T2 domain)
• Analyze T2 distributions
• Verify "direct" NMR answer products
• Calculate "indirect" NMR answer products

Core NMR Analysis

• Determine NMR interpretation model (BVI, K, DSM, SSM, EDM, DIFFAN, TDA)
• Calculate pore volume composition (free fluid, bound fluid)
• Calculate Ø_T, Ø_e, V_clay, BVI, BVW, Sw, Swirr, HPV, K, N/G, T2-bin distribution, water cut (when Kr established)

Job Planning

• Estimate borehole, formation fluid and rock properties (Rm, Rw, temp., pressure, viscosity, H.I., T1, T2, Ø, N/G)
• Optimize logging parameters (frequency, TW, TE, N, D a , Ø_h , logging speed )
• Establish job activation (CTP, SWT, DWT, DTE)
• Integrate derived NMR core models

• Integration of open-hole log data, production test data, and core data
• Calculation of clay volumes and types independent of log picks
• Calculation of total and effective porosity independent of lithology
• Calculation of Sw independent of resistivity (Rw) measurements
• Calculation of custom permeability
• Estimation of reservoir textural properties

• Calculation of pore volume composition (V_clay, Ø_e, FFI, HPV, moveable water, BVI)
• T2 distribution (bin, waveform, vdl, diff. spectrum, shifted spectrum, T2DW) (case study #1)
• Derived K and BVI calibrated values (case study #2)
• Annotate the log with production, test, geologic, and core information as defined by the customer

• Spreadsheet presentation includes

1. Weight averaged effective porosity and Sw
2. Gross, Net and Pay Sand counts
3. Cumulative HPV and K feet

• Sensitivity analysis, select "cutoffs" for Vshale, K, Sw, and PHIE
• Summations by well and zone
• Output data in Customer defined media. (i.e. Diskette, CD Rom,etc.)