Seismic Foldout: Cameroon: Douala Kribi-Campo Basin … Seize the opportunity!

Misha Isakov, Paolo Gabrielli, Emmanuel Nformi, Shona Culwick, CGG, Blanche Mahamat, Achta Boubakar, Christophe Atangana Ndende, Société Nationale Des Hydrocarbures

GEO ExPro Magazine

... by FWI and incorporated into the velocity model, such as a gas pocket and buried channels, visible on the 600m depth slice (a) and on the model overlaid...

Qualitative Seismic Attribute in Drilling Oil and Gas Development Wells, Kerisi Field, Natuna Sea, Indonesia

Yasril Kahar, Vaughn L. Ball, Sunil K. Shalia

Indonesian Petroleum Association

... to Pvelocity “g” is Gardner’s exponent P and S wave reflection coefficients angle stack response at angle theta Then, we express it as a linear equation, so...

Diagenesis and pore pressure induced dim spots „ Advances on AVO analysis of high-impedance reservoirs

Antonio Pessoa, Mark Chapman, Giorgos Papageorgiou

International Meeting for Applied Geoscience and Energy (IMAGE)

... target logs (depth in meters). Clay content was generated by the gamma-ray logs. VP, VS and density were acquired. R1 represents the upper reservoir...

A cross-shape deep Boltzmann machine for petrophysical seismic inversion

Son Dang Phan and Mrinal K. Sen

AAPG Bulletin

... line. The available logs include the gamma ray, density, sonic and shear velocity, and resistivity (which is not shown in this figure). The target...

Lateral Changes in Seismic Velocities and Their Effect on Depth Prediction

J. Pinchin, M. Bayly

Petroleum Exploration Society of Australia (PESA)

... stacking velocities can be used for regional depth predictions, their detailed use in areas of rapid lateral velocity variations can produce erroneous...

Long Climatic Time Series from Sediment Physical Property Measurements

Timothy D. Herbert, Larry A. Mayer

Journal of Sedimentary Research (SEPM)

... the mechanical and chemical processes that occur during burial and lithification. We demonstrate that routinely made continuous Gamma Ray Attenuation Porosity...

3-D Integrated Workflow for Understanding the Fracture Interference and its Impact into the Gas Production of the Woodford Shale

Eva Peza

Unconventional Resources Technology Conference (URTEC)

... part of the middle unit and the whole of the lower unit on lap and pinch out on the Hunton to the northeast. The depth tops from the well data...

Effects of Biogenic Silica on Acoustic and Physical Properties of Clay-Rich Marine Sediments (1)

JANE S. TRIBBLE , FRED T. MACKENZIE , JOZSEF URMOS , DAVID K. O'BRIEN , and MURLI H. MANGHNANI

AAPG Bulletin

... with increased porosity and decreased grain density and compressional velocity. Variations with depth in opal-A concentration are therefore reflected...

Acoustic Impedance Analysis as an Indirect Approach in Identifying Un-swept Oil Zone Case Study: Kais Carbonate Reservoir The Walio Field, Salawati Basin

Yulia Putri W, Eli Silalahi, Wah Adi Suseno, Ricky Sitinjak, Suganda Zahnurianto

Indonesian Petroleum Association

..., density and gamma ray log. Figure-4 shows the Kais depth structure map, the highest structure is at Block I and the distribution of wells are used...

PP-PS depth-domain AVA inversion

Maud Cavalca, Robin P. Fletcher

International Meeting for Applied Geoscience and Energy (IMAGE)

..., or geometrical spreading corrections applied during migration (usually based on kinematic ray tracing using a simplified and approximate velocity...

2-D and 3-D Prestack Depth Migration for Complex Geologic Structures Offshore Indonesia

M. Murphy, R. Ottolini, R. Estill, E. Lumadyo, M. Mathias

Indonesian Petroleum Association

... due to more accurate interval velocities and structural geometry resolution. 3-D prestack depth migration provides better migration velocity analyses...

Diagenetic Heterogeneity and Reservoir Quality: Fluvial, Deltaic, and Turbiditic Sandstone Reservoirs, Potiguar and Reconcavo Rift Basins, Brazil

Marco A. S. Moraes , Ronald C. Surdam

AAPG Bulletin

... sources of petrologic information included 180 SEM analyses of sandstone samples and 71 semiquantitative x-ray diffraction (XRD) determinations...

Mapping Thin Sand Reservoirs in Eastern India

U. K. Guru, M. Krishnamurty, V. C. Ramalah, E. W. Wiltse, Robin Westerman

Southeast Asia Petroleum Exploration Society (SEAPEX)

... an accurate relationship between depth and time for the well. Any log profile can then be scaled to linear two-way time and compared directly...

Delineation of Jonah field Using Seismic and Sonic Velocity Interpretations

Ronald C. Surdam, John Robinson, Zun Sheng Jiao, Nicholas K. Boyd III

Rocky Mountain Association of Geologists

... a significant velocity-inversion surface in the Jonah area. For example, in Figure 10 it is apparent that, after removing the regional velocity/depth gradient...

III Columbia Oil & Gas Investment Conference: Conventional & Unconventional Hydrocarbon Resources - Abstracts

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... after 3D prestack wave-equation depth migration. The complex wave propagation of the primaries is unravelled by the prestack migration, making...

From Petrophysics to Rock Mechanical Properties: A Support to Shale-Gas Hydraulic Fracturing Program in Cooper Basin, Australia

Naslin

Indonesian Petroleum Association

... by the overburden pressure (a function of depth and rock density), pore pressure, Poisson’s Ratio, porosity, and tectonic stresses. To validate the calculated...

Extending the Effective Fracture Lengths through Mitigation of Water Trapping to Improve Eagle Ford Gas Production

Luchao Jin, Blaine Spies, Shashidhar Rajagopalan

Unconventional Resources Technology Conference (URTEC)

.... The capillary pressure (Pc) can be calculated using the Laplace equation (Conway et al., 1995): 𝑃𝑐 = 2𝜎𝑐𝑜𝑠𝜃 𝑟 (1) Where σ is the surface...

Let's Combine Well Testing and Logging: A Pre- and Post-Frac Gas Shale Case

Antoine Jacques, Benoit Brouard, Sivaprasath Manivannan, Pierre Berest, Vincent Jaffrezic

Unconventional Resources Technology Conference (URTEC)

... was increased to impose an overhead pressure at formation depth. Because the wellbore pressure is almost constant, the difference between...

Assessing and processing three-dimensional photogrammetry, sedimentology, and geophysical data to build high-fidelity reservoir models based on carbonate outcrop analogues

Ahmad Ramdani, Pankaj Khanna, Gaurav Siddharth Gairola, Sherif Hanafy, and Volker Vahrenkamp

AAPG Bulletin

... behind-the-outcrop and measured its acoustic velocity, spectral gamma ray, and bulk density. We also measured relative dielectric permittivity...

Pore Pressure Analysis in the Corridor Block, South Sumatra Basin: Distribution, Mechanism, and Prediction

Irfan Yuliandri Syukri, Budi R Permana, Phil D. Heppard, Agus M. Ramdhan, Lambok M. Hutasoit

Indonesian Petroleum Association

... a normal behavior, i.e. increasing velocity with increasing depth which is consistent with hydrostatic pressure regime. © IPA, 2019 – 43rd Annual...

Burial Diagenesis and Specific Catalytic Activity of Illite-Smectite Clays from Vienna Basin, Austria

W. D. Johns , T. E. McKallip

AAPG Bulletin

... directly with depth. Catalytic Activity and Diagenesis Fifteen of the fine clay samples had been previously characterized by x-ray diffraction, cation...

Calculation of Paleosalinities from Boron and Clay Mineral Data

Elton L. Couch

AAPG Bulletin

... boron" by using Equation 4. Paleosalinities then were determined by graphical solutions to Equation 5. A smoothed paleosalinity-versus-depth curve...

Seismic HC Reservoir Prediction: A (Critical) Review on the Determination of Lithological Parameters from Seismic Data

Burkhard Buttkus

Geological Society of Malaysia (GSM)

... of depth to layer thickness (Schneider, 1969). Figure 8 shows the expected error of interval velocities as a function of the RMS-velocity error...

Increasing Wells Lifetime by Using PAR VALVE to Overcome Sand Settling Problems at Pertamina EP Asset 1 Field Jambi

Adnan Syahrul Ramadhan, Edwar, Alip Triwanto

Indonesian Petroleum Association

... was discovered by Jambi Oil in 1981 through exploration drilling in Ketaling Timur-1 (KTT-001) which was drilled to a depth of 2210 m, penetrating the peak area...

Petrophysical Interpretation and Reservoir Characterisation on Proterozoic Shales in National Drilling Initiative Carrara I, Northern Territory

Liuqi Wang, Adam H. E. Bailey, Emmanuelle Grosjean, Chris Carson, Lidena K. Carr, Grace Butcher, Christopher J. Boreham, Dave Dewhurst, Lionel Esteban, Chris Southby, Paul A. Henson

Australian Petroleum Production & Exploration Association (APPEA) Journal

...–687.9 m), undivided Lawn Hill Formation (687.9– 1430.1 m) and the Plain Creek Formation (1430.1 m – total depth) (Geoscience Australia 2021). Two stages...