A Sedimentological Synthesis of Placer Gold, Uranium and Pyrite Concentrations in Proterozoic Witwatersrand Sediments

W. E. L. Minter

CSPG Special Publications

... is reflected by a pebble size decrease from -4.0 φ to -3.4 φ and improvement in sorting reflected by a decrease in the standard deviation of pebble sizes...

Enhanced Reservoir Characterization for Optimizing Completion Decisions in the Permian Basin Using a Novel Field-Scale Workflow Including Wells with Missing Data

Artur Posenato Garcia, Laura M Hernandez, Archana Jagadisan, Zoya Heidari, Brian Casey, Rick Williams

Unconventional Resources Technology Conference (URTEC)

...). URTeC 317 3 Field development is still challenging in the Wolfcamp formation due to vertical and horizontal heterogeneity, which results in variable...

Application of random forest algorithm to predict lithofacies from well and seismic data in Balder field, Norwegian North Sea

Hoang Nguyen, Bérengère Savary-Sismondini, Virginie Patacz, Arnt Jenssen, Robin Kifle, and Alexandre Bertrand

AAPG Bulletin

... the lithology prediction using amplitude vs. offset (AVO) analysis. For example, the shale-on-gas sand provides a class III AVO response...

A Nigerian Renaissance: Renewed interest in Africa's largest oil producer

John Balch, Matt Lamont, Polarcus, DownUnder GeoSolutions

GEO ExPro Magazine

... relative amplitude Kirchhoff pre-stack depth migration with the Green’s functions determined by dynamic ray tracing – the rays are traced through...

Gippsland Basin, Australia: New Data Reveals Further Potential in a Mature Basin

Jarrad Grahame, Keat Huat Teng, Iain Burnie, CGG

GEO ExPro Magazine

... to which the new data has shown improvement. This model will be further updated through a second iteration of TLFWI and dual-azimuth tomography. Further...

Basal Triassic tectonostratigraphy of the central North West Shelf

Claire Orlov, Steve Abbott, Chris Nicholson, George Bernardel, Merrie-Ellen Gunning, Nadege Rollet

Petroleum Exploration Society of Australia (PESA)

... Triassic unconformity (TR10.0 sequence boundary), showing improvement in the resolution of previously identified features and the identification of new...

Structure and Environment of Formation of Achimov Beds of Zapadno-Var’Yegan Field

Ye. M. Maksimov, Yu. A. Trenin, T. I. Romanova

Petroleum Geology: A Digest of Russian Literature

... Cretaceous rocks. Three northeast-trending highs are present on the top of the Bazhenov Formation. Their amplitude is 20-30 m. See figure 1. Figure 1...

Aero-Cosmic Investigations of the Geology and Oil-Gas Potential of Krasnoleninsk Arch, West Siberia

V. M. Pererva, V. E. Filippovich, V. N. Barinov, V. A. Sidorov

Petroleum Geology: A Digest of Russian Literature

... dynamic processes in the fault zones with accompanying hydrothermal alterations and reservoir improvement. Similar associations of lines of pinch-out...

A Rapid, Inexpensive Determination of the Clay-Size Fraction of Sediments: RESEARCH METHOD PAPER

Michael C. Mackiewicz, David Freeman, Doug Pierson

Journal of Sedimentary Research (SEPM)

...)]) - C1}*C0, where PC = particle concentration, mg/liter; t = current amplitude from transmitted light detector; C0 = instrument span constant; C1...

Thin-Bed Reflectivity … An Aid to Seismic Interpretation

Search and Discovery.com

... on an analytical analysis of a realistic model, it is found that the seismic amplitude and frequency vary continuously far below the conventional view...

Abstracts: Maximizing the Value of Seismic Data Through the Increased Mapping of Horizons; #90173 (2015)

Friso Brouwer

Search and Discovery.com

... a few kilobytes of interpreted data on which key economic decisions are made. An improvement in interpretation can be achieved by greatly increasing...

Abstracts: Evaluation of a Fast Algorithm for the Eigen-Decomposition of Large Block Toeplitz Matrices with Application to 5D Seismic Data Interpolation; #90173 (2015)

Jianjun Gao, Vicente Oropeza, and Mauricio D. Sacchi

Search and Discovery.com

... to seismic imaging, multiple suppression and detailed amplitude versus offset studies. In recent year, important advances were made in the development...

Multi-Azimuth Seismic for Sub-Salt Targets, Bob Hardage, #40381 (2008)

Search and Discovery.com

An application of FWI with progressive transfer learning

Shirui Wang, Jinjun Liu, Yuchen Jin, Xuqing Wu, Jiefu Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... is for denoising and amplitude balancing. The initialization stage is to generate an initial model close to the real answer, which can accelerate...

The impact of diagenesis on the heterogeneity of sandstone reservoirs: A review of the role of depositional facies and sequence stratigraphy

S. Morad, Khalid Al-Ramadan, J. M. Ketzer, L. F. De Ros

AAPG Bulletin

... reservoir quality prediction. Aase, N. E., P. A. Bjorkum, and P. H. Nadeau, 1996, The effect of grain-coating microquartz on preservation of reservoir...

Application of Integrated Risk and Reliability Methods for Developing Equipment Maintenance Strategies

Jens Petter Tronskar, Franklin Benjamin Ratnam, Lee Chon Gee, Zhang Li

Indonesian Petroleum Association

... important than doing it cheap!) The benefits reported by the RIMAP project included: • Reduction in SHE risks, due to improvement in quality...

Geophysics

E. A. Eckhardt

AAPG Bulletin

... improvement and it is here where, in the years just ahead, the greatest progress should be made. In mulling over the subject matter for these remarks...

Developments in South Texas in 1954

R. W. Grayson

AAPG Bulletin

..., but extensions and new-pays have added considerable reserves. Oil production was down 7% due to decreased allowables. Gas and liquid hydrocarbons...

Stratigraphic Traps for Petroleum in Wind-Laid Rocks

Steven G. Fryberger

AAPG Bulletin

... may be selective or nonselective of depositional facies. The propensity of eolian deposits to have diagenetic traps may be due to early cementation...

Pilot of Rod-Shaped Proppant Application to Enhance and Sustain Production from Fracturing in a Tight Formation in Beta Field

Zulhendra, Dwi Agung Arif Setyani, James Nileshwar, Ignatius Emmanuel, Barbara Tsangueu, Areiyando Makmun

Indonesian Petroleum Association

... to achieve due to some damaging area near the wellbore. In order to achieve the sustainability in production, the Rod-shaped type of proppant is used...

Correlation of TOC CoreMeasurements to Wireline Logs across the Delaware Basin

Ian Deighton, Dave Smith, James Keay

Unconventional Resources Technology Conference (URTEC)

... poorer correlations of calculated to core values. Non-linear regressions were also attempted but with no improvement. Correlation coefficients ranged...

Role of Geology Operation Facing the Subsurface Uncertainties, in Mitigation, While Drilling and Logging in The Mahakam Delta; #42561 (2020)

Rio Sitorus, Roy Lesmana, Wahyu Pramono, Rian Ikhsan, Gustiadi Rosa

Search and Discovery.com

... in mature fields in the Mahakam Delta are becoming more complex and challenging. This is due to reservoir connectivity and pressure uncertainty where...

Petroleum Demands of Future Decades

J. D. Moody

AAPG Bulletin

... a significant part. It seems clear that, without significant improvement in the climate in which we operate, the risk-takers in industry...

Interpretation of Neutron Well Logs

William L. Russell

AAPG Bulletin

... a shift to the left and a decrease in the amplitude of the shifts due to lithologic causes. Usually the effect of the fluid level or top...

Improvements on airborne gamma-ray spectrometry inversion

Jessica D. Weihermann, Yaoguo Li, Saulo P. Oliveira, Francisco J. F. Ferreira, Adalene M. Silva

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The inversion of airborne gamma-ray spectrometry (AGRS) The inversion of AGRS data has been studied since 1971 by data involves several fixed parameters due...