https://www.samigeo.com/events daily 0.75 2020-09-06 https://www.samigeo.com/events/2l9c603ej0vbbll9ts1xblltjqrm9g monthly 0.5 2020-09-06 https://www.samigeo.com/events/2019-geoconvention monthly 0.5 2020-09-06 https://www.samigeo.com/events/2019-urtec-conference-and-exhibition monthly 0.5 2020-09-06 https://www.samigeo.com/homepage daily 1.0 2021-01-25 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1599419933448-L8SXHBTTF278ISADWOB4/Image1_rev.png Home https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1599419930976-WSD22BKNHWO9V6DUJTM7/Image2_rev.png Home https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1599420359771-O4VJ50B3N57LCADOPJET/Image3_rev.jpg Home https://www.samigeo.com/our-team daily 0.75 2021-09-25 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1599418618792-0ZE2USYJ6W19U8WVLCJH/Schopra.jpg Our Team https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1599424617388-R3J4YE9CELZXA24FOYJY/rksharma.jpg Our Team https://www.samigeo.com/our-mission daily 0.75 2020-09-14 https://www.samigeo.com/litho-fluid-prediction daily 0.75 2021-01-26 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609714271172-FF3XA790JCYDCRENAJJ9/Untitled-12a1.png Litho-fluid prediction (Adapted from Sharma et. al., 2020) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609707159904-IJ8VK2FK6TLO8JF4ES9O/Untitled-6a.png Litho-fluid prediction Crossplot between P-impedance and VP-VS ratio derived from seismic prestack simultaneous impedance inversion before frequency enhancement, and for the interval between the Stø and Kobbe markers. The same rock physics template shown in (a) is overlaid on it. The cluster of points exhibit an overall shape similar to the cluster we see for well data, but they do not seem scattered enough within the red and purple polygons Thereafter, the back projection of different polygons on the seismic section(shown below) facilitates us to map individual facies on 3D seismic data. (Adapted from Chopra et al. (2017); Data courtesy of TGS, Asker) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609713938508-AKCUL5YC7QNAYBMNUVVC/Untitled-13.png Litho-fluid prediction (Adapted from Sharma et. al., 2020) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609715367176-LOAV38ZHLC95AA926U2U/Untitled-15b.png Litho-fluid prediction (Adapted from Sharma et. al., 2020) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609710630651-6M01XGHS80NRCHOX82UV/Untitled-10a1.png Litho-fluid prediction Spatial distribution of different facies at the level of interest (Adapted from Chopra et al., 2020) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609713539602-JK0J80DGN9HMG5ADFROJ/Untitled-12b.png Litho-fluid prediction (Adapted from Sharma et. al., 2020) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609707129138-AP9B82GBOU4BQWQHKP1W/Untitled-8a.png Litho-fluid prediction Cross-plot matrix generated using well-log data showing several cross-plots of different seismically derived attributes color-coded with petro-physical properties https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609707181829-8Y6LHZ0YP617T1OD4CPJ/Untitled-3a.png Litho-fluid prediction Crossplot between P-impedance and VP-VS ratio for data from Atlantis well, and for the interval between the Stø and Kobbe markers, with a rock physics template overlaid on it. The cluster of points with low impedance and low VP-VS ratio exhibits high porosity and high gas saturation, and are enclosed in red and purple polygons. Their back projection on to the well log curves is shown on right, and they highlight the intervals between Stø and Kobbe markers. (Adapted from Chopra et al. (2017); Data courtesy of TGS, Asker) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609707313522-F7V4FU6NGY59SLJ6Z64V/Untitled-9a1.png Litho-fluid prediction (Adapted from Chopra et al., 2020) https://www.samigeo.com/fracture-characterization daily 0.75 2021-09-24 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1610258542223-23O6AJQIQM32PC6S8LXH/Untitled-39.png Fracture characterization Notice, while the maximum stress orientation extracted from the AVAz approach do not shown any stable pattern, the general trend seen on the display of the orientation extracted from the azimuthal variation of FT is consistent and appears to be NE-SW that matches with the regional trend noticed in WCSB. (Adapted from Sharma & Chopra, 2020) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1610259019583-7NXO76BQHMNYSJ4X7JLQ/Untitled-40.png Fracture characterization https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1610260412254-KRQPXEJ0V7OWJ7WMCVK8/Untitled-43.png Fracture characterization (Adapted from Sharma & Chopra, 2020) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1610260242962-1I9DJC38AE5IF3TNRXAA/Untitled-42a.png Fracture characterization (Adapted from Sharma & Chopra, 2020) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1610255562362-P9L529DNY2QZLFCGG2M6/Untitled-36a.png Fracture characterization The NMO corrected gathers for six different azimuths shown to the left. Though, travel-time differences corresponding to individual seismic reflection events exist on the azimuthal-sectored gathers, it is difficult to visualize them when the gathers are sorted in this way. The equivalent COCA display is shown on the right. The azimuthal travel time variations are evident at each offset bin of individual seismic reflection events as seen clearly on the zoomed portion displayed in the foreground. (Adapted from Sharma & Chopra, 2019) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1610256853164-D4BB801LYSCVD6EXRAC1/Untitled-37.png Fracture characterization Workflow for estimating maximum horizon stress direction as well as magnitude of anisotropy using fracture toughness. https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1610259826808-10KO2DC25OMYM7FWB3X5/Untitled-41.png Fracture characterization https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1610260549217-CQNZUPGE7GQB7EZ5TR3I/Untitled-44.png Fracture characterization (Adapted from Sharma & Chopra, 2020) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1610257744747-Q3YML6T11SJS86RY6686/Untitled-38.png Fracture characterization An arbitrary line section from the maximum stress orientation volume extracted using AVAz (upper) and proposed FT approach (lower). The estimated maximum stress orientation with AVAz approach is seen to exhibit excessive variation within the same formation, it looks more stable and reasonable when FT approach is followed. (Adapted from Sharma & Chopra, 2020) https://www.samigeo.com/fracability-analysis daily 0.75 2021-09-24 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609742174503-CI8H41GKXRASD3YBGMGF/Untitled-35.png Fracability analysis https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609742300859-IPNTYE1LE0F3AH0I8AR5/Untitled-21a.png Fracability analysis Crossplot of Young’s modulus versus Poisson’s ratio for Barnett shale. https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609742910357-361LJ802CE5NP8IHRWH3/Untitled-26b.png Fracability analysis https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609730128637-80ZO6KOFIBZ8Z84RW3UE/Untitled-27.png Fracability analysis A relationship between brittleness index and confining stress defined geomechanically indicates that the best fracability behavior is associated with low confining stress. However, the brittleness index defined by Rickman shows the opposite trend. Therefore, it can be stated that the Rickman et al. (2008)’s approach ignores the confining stress that the rocks are always under, and hence ignores the true mechanism of hydraulic fracturing. https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609730650990-9ZV6I47I6V8MPL3IL61C/Untitled-28.png Fracability analysis https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609731664491-XHIKZMYBIHYSQ872XEJ3/Untitled-29c.png Fracability analysis HFC accounts the impact of strength on the fracability analysis appropriately https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609732240933-8JDU0V4WXQOI364YFO5N/Untitled-31.png Fracability analysis (Adapted from Sharma et al., 2019) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609733992700-VVDNMEI10P0MZJB0VL23/Untitled-33.png Fracability analysis https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1609733590081-G4INNN50GE10JKFFFDNY/Untitled-32.png Fracability analysis 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https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601804673924-HACSEAWQL667ZCB2A4JI/Coherence5a.png Coherence/Curvature https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601804420066-HW8FOPQ8NS00G1X47RZO/Coherence4a.png Coherence/Curvature https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601804985296-NUIGAGKOKJVUOU88C764/image-asset.png Coherence/Curvature https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601800586646-7SUDVWVNXB8MWR7CFF50/Coherence11.png Coherence/Curvature https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601805037171-40D5T8N8M7BXOULFHYY0/Coherence8a.png Coherence/Curvature https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601804273987-WR1VMAN2I4T2JD0DT4H1/Coherence3a.png Coherence/Curvature https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601835197988-GJFT1ZW8UGC7BVY479M5/Curvature2a.png Coherence/Curvature https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601835274808-NONM1LEQI8E2LC1GSN9N/Curvature3a.png Coherence/Curvature https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601835348515-47IIPZNQ5WT6CE4GJ9KZ/Curvature4a.png Coherence/Curvature https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601835044163-C47PDOTE023HXQCSB11W/Curvature1a.png Coherence/Curvature https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601834800843-K6N5QPFV7GGF0WAYSB4H/Curvature_formula1b.png Coherence/Curvature where a, b and c are the coefficients of the polynomial equation. https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601835422101-KIKBV4UA6QO2G52RF0ZE/Curvature5a.png Coherence/Curvature https://www.samigeo.com/spectral-enhancement daily 0.75 2021-01-26 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601836942043-5GRON8UL95PSXB7223VM/spec_bal1a.png Spectral enhancement 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classification https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601850131436-ZY4S4DLRVBH0SLD7XLA2/SFC4a.png Facies classification https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601850000074-LWSLGFFRT7O9Z1117B5R/SFC3a.png Facies classification https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601848704543-WGU1FCQTV196K0CU5SVJ/SFC2a.png Facies classification https://www.samigeo.com/multiattribute-analysis daily 0.75 2021-01-26 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1601851894353-LIQAT96CCONGU1GJSRE0/MLT_attri1a.png Multi-attribute analysis https://www.samigeo.com/value-adding-steps-for-impedance-inversion daily 0.75 2021-09-24 https://www.samigeo.com/value-adding-steps-for-impedance-inversion/inversion-parameterization monthly 0.5 2021-01-25 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611551811254-H1KVMUUXFCXZ30VPHIRK/Untitled-23a.png Value adding steps for impedance inversion - Inversion parameterization https://www.samigeo.com/value-adding-steps-for-impedance-inversion/robust-low-frequency-model monthly 0.5 2021-01-26 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611543889795-MX9PIJ8LLN0NAPA3Q35A/Untitled-21a.png Value adding steps for impedance inversion - Robust low frequency model https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611542109322-08QX58D8M8C7ZPW7IX20/Untitled-14.png Value adding steps for impedance inversion - Robust low frequency model https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611542895212-80PZJX6HO7WE6NPFT90G/Untitled-15a.png Value adding steps for impedance inversion - Robust low frequency model https://www.samigeo.com/value-adding-steps-for-impedance-inversion/offset-to-angle-transformation-ac66w monthly 0.5 2021-01-25 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611538773872-B82N5D8ARRFRGC79IM7E/Untitled-10.png Value adding steps for impedance inversion - Offset-to-angle transformation https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611539213518-UICWQKXZ5JT3RKDZAIVL/Untitled-12.png Value adding steps for impedance inversion - Offset-to-angle transformation https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611539417955-2EO6RUWZ8CVQOK17HJAJ/Untitled-13a.png Value adding steps for impedance inversion - Offset-to-angle transformation https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611538974481-I6QH0O0P9EG46YBFSCDN/Untitled-11.png Value adding steps for impedance inversion - Offset-to-angle transformation https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611537698965-EKL956R4V61GG7ZK6WZV/Untitled-9.png Value adding steps for impedance inversion - Offset-to-angle transformation https://www.samigeo.com/value-adding-steps-for-impedance-inversion/adequate-data-conditioning monthly 0.5 2021-01-26 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611536597674-76U7YIVI42L8INFFMGW4/Untitled-5.png Value adding steps for impedance inversion - Adequate data conditioning https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611536740620-IDLQA0YR1JU2048Q48Z9/Untitled-6.png Value adding steps for impedance inversion - Adequate data conditioning https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611536779135-AR9KYUHVRMO6S7F10TYD/Untitled-7.png Value adding steps for impedance inversion - Adequate data conditioning https://www.samigeo.com/value-adding-steps-for-impedance-inversion/well-to-seismic-tie monthly 0.5 2021-01-24 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611533838583-L5FADFLN896EP33GD89J/Untitled-3.png Value adding steps for impedance inversion - Well-to-seismic tie Time varying wavelets were extracted statistically from seismic data at different locations around different wells. Notice the temporal and spatial variation of wavelets that must be considered in well-to-seismic tie analysis as well as impedance inversion analysis. (Adapted from Chopra et al., 2019) https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611533635165-D6CMOAW7PWZI4JK3PT74/Untitled-2.png Value adding steps for impedance inversion - Well-to-seismic tie https://www.samigeo.com/inversion-methods-and-their-advancement daily 0.75 2021-01-26 https://www.samigeo.com/inversion-methods-and-their-advancement/joint-inversion monthly 0.5 2021-01-25 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611559359028-LRRNLQN1M4NHWR2MLC7V/Untitled-31.png Inversion methods and their advancement - Joint inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611559013534-19MOR3AOBOTEMCOKWQ0M/Untitled-29.png Inversion methods and their advancement - Joint inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611559172461-F9TENII90OBPLTYEKLW4/Untitled-30.png Inversion methods and their advancement - Joint inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611559810804-CH362S42RZG75UN13O22/Untitled-33.png Inversion methods and their advancement - Joint inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611559507991-6JDYCOG8KAVMSQL9TB16/Untitled-32.png Inversion methods and their advancement - Joint inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611559951663-ZSZ3ALT2AI9H0Y9SF9GY/Untitled-34.png Inversion methods and their advancement - Joint inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611560286470-PH1M87C2ENNNCTRZ5B3S/Untitled-35.png Inversion methods and their advancement - Joint inversion https://www.samigeo.com/inversion-methods-and-their-advancement/extended-elastic-impedance-inversion monthly 0.5 2021-01-26 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611558005516-ZD8NOCSMAJVQWOUYGI6J/Imp_inv16a.png Inversion methods and their advancement - Extended elastic impedance inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611558403182-GPLFSU0V1MPH6WRK1TWI/Imp_inv19a.png Inversion methods and their advancement - Extended elastic impedance inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611558207565-JWHXNO1PIU67G1V87N7H/Imp_inv17a.png Inversion methods and their advancement - Extended elastic impedance inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611558267929-EKP2FXXT72K9T2U2GY06/Imp_inv18a.png Inversion methods and their advancement - Extended elastic impedance inversion https://www.samigeo.com/inversion-methods-and-their-advancement/elastic-impedance monthly 0.5 2021-01-26 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611557530469-00O3Y3QZGC4F0W77ECVO/Imp_inv15a.png Inversion methods and their advancement - Elastic impedance inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611557405269-GRGLNU4GKEEDQ5HTOEEW/Imp_inv14a.png Inversion methods and their advancement - Elastic impedance inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611557212367-3M1N69VMUY3A889D0RIP/Imp_inv12a.png Inversion methods and their advancement - Elastic impedance inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611557311338-ZR6F4XRK5RKUW5THG3E9/Imp_inv13a.png Inversion methods and their advancement - Elastic impedance inversion https://www.samigeo.com/inversion-methods-and-their-advancement/simultaneous-inversion monthly 0.5 2021-01-26 https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611555020793-TIJ058AJY2U743SU9BUY/Untitled-25a.png Inversion methods and their advancement - Simultaneous inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611553397959-4JI4JLQQ8T9U3CUBTZ66/Untitled-24.png Inversion methods and their advancement - Simultaneous inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611555418707-U2M14GZBCFNRT6V1QMKN/Untitled-26a.png Inversion methods and their advancement - Simultaneous inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611556625792-QHX2957ECWI8SX2EGI6X/Untitled-27a.png Inversion methods and their advancement - Simultaneous inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611554304845-GHECKL406W34WOSDKOIR/Imp_inv1a.png Inversion methods and their advancement - Simultaneous inversion https://images.squarespace-cdn.com/content/v1/5f4c37798109a775b6dd997e/1611556822409-FY580HN1PMFTD5DJFKRU/Untitled-28.png Inversion methods and their advancement - Simultaneous inversion