Authigenic Vivianite in Potomac River Sediments: Control by Ferric Oxy-Hydroxides

P. P. Hearn, D. L. Parkhurst, E. Callender

Journal of Sedimentary Research (SEPM)

.... (March), Sand-size particles of vivianite (Fe3(PO4)2 · 8H2O) have been identified by X-ray diffraction and scanning electron microscopy in surficial...

Start to Finish: Optimizing Completions from the Bit to the Perforation Cluster

Stephen Drylie, Carl Merkt, Buddy Woodroof, Tanner Wood

Unconventional Resources Technology Conference (URTEC)

... of multiple engineers, geologists, and specialists incorporating all available data in an in-depth evaluation with the goal of integrating everything...

Improving three-dimensional high-order seismic-stratigraphic interpretation for reservoir model construction: An example of geostatistical and seismic forward modeling of Permian San Andres shelf–Grayburg platform mixed clastic–carbonate strata

Yawen He, Charles Kerans, Hongliu Zeng, Xavier Janson, and Samuel Z. Scott

AAPG Bulletin

... it to the depth domain where the acoustic wave equation is solved using the extended split-step Fourier method (Kessinger, 1992), which can accommodate...

Assessment of Natural Gas from Coalbeds by Geologic Characterization and Production Evaluation

Raoul Choate, John P. McCord, Craig T. Rightmire

AAPG Special Volumes

... in coal versus the linear volume of methane generated. This semi-log plot results in a straight line represented by Equation (1) (Meissner, 1984...

Predictions of Gas Hydrates Using Pre-Stack Seismic Data, Deepwater GOM; #40547 (2010)

Dianna Shelander, Jianchun Dai, George Bunge, Timothy S. Collett, Ray Boswell, Emrys Jones

Search and Discovery.com

... S. Collett, Ray Boswell, Emrys Jones Click to view presentation at AAPG Geoscience Technology Workshop PS Predictions of Gas Hydrates Using Pre-Stack Seismic...

Application of Machine Learning to Predict Cementation Factor along Well Intervals and its Implications for Sand Problem, Study Case: Wanda Complex Field, Indonesia

Aditya Wicaksono, Alfigo Tryozi S. Z., Bhaskara Aji, Leonardus Gilang Ginting P., Arif Yondo

Indonesian Petroleum Association

... a certain depth range of a well, by utilizing electrical log data. Various machine learning models will be used to determine the most appropriate model...

Enhancing Pore Pressure Analysis Through Integrated Prediction Filter Error Analysis

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Implementation of Poisson Impedance Inversion to Characterize Hydrocarbon Reservoir at Field BŽ, South Sumatera

Bagus Dwi Prasetyo, M. Syamsu Rosid, Junita Trivianty, Humbang Purba

Indonesian Petroleum Association

... Impedance (AI) and Shear Impedance (SI) according to lithology or fluid trend in order to satisfy the equation of PI = AI – cSI. To improve...

Depositional-process controls on chemofacies in mixed-lithology submarine lobe deposits: a high-resolution core study from the Permian Wolfcamp XY Formation, Delaware Basin, Texas, U.S.A.

Shaskia Herida Putri, Zane Jobe, Jesse Melick, Lesli Wood, Marsha French

Journal of Sedimentary Research (SEPM)

... techniques. Core-based X-ray fluorescence (XRF) data quantifies subtle elemental variations that can aid in interpreting fine-scale sedimentological...

Devonian Woodford in Oklahoma: Log Analysis and OGIP Determination in a Gas-Bearing Shale Using Standard Logging Suite

G. B. Asquith

West Texas Geological Society

... Water) Water Saturation using the Simandoux Shaly Sand Equation (Swsim) Gas-Filled Porosity (Φgas) = Φe * (1.0-Swsim) Permeability (k) in nannodarcies...

Integration of Seismic Attributte and Sedimentation Concept for Paleogeographic and Sand Distribution Modeling in Seng-Segat Field, Bentu Block, Central Sumatra Basin

Afrizon Setiawan, Ronald Siregar, Dhimas Arief, Syahrial Rakimi, Arifin Sodli, Radig Wisnu Y, Hendarman

Indonesian Petroleum Association

... VShale in S-2 Well. Depth (m) B‐1 Well Plot Data:  Inverted‐Arbitary Inserted Curve Data:  P‐Wave,  Gamma  Ray  (GR) S‐1 Well SC‐1 Well S‐7 Well...

Sediment Mass-Flow Processes on a Depositional Lobe, Outer Mississippi Fan

William C. Schwab , Homa J. Lee , David C. Twichell , Jacques Locat , C. Hans Nelson , William G. McArthur , Neil H. Kenyon

Journal of Sedimentary Research (SEPM)

... material at some depth Z below the surface of the flow. This relation was developed by combining the Coulomb equation with the Newtonian viscous model...

Rock Mechanical Behavior at the Inch Scale in a Thinly Laminated Unconventional Formation

Smaine Zeroug, Bikash K. Sinha, Ting Lei, John Jeffers

Unconventional Resources Technology Conference (URTEC)

... along a helical path, producing signals that are processed to yield velocity or slowness images as a function of depth and azimuth, similar to images...

Front Matter, Abstracts: West Texas Geological Society: Resource Plays in the Permian Basin: Resource to Reserves

Michael A. Raines

West Texas Geological Society

..., the TOC of overlying Carboniferous samples is inadequate for generating hydrocarbons. Projection of the linear maturity depth profile to the surface...

Changing Wave Parameters, Due to Shoaling, and Sediment Transport

William F. Tanner

GCAGS Transactions

... equation which gives modified parameters at any desired point during shoaling. Therefore they must be calculated step-by-step. Shoaling over real-world...

Organic matter network in post-mature Marcellus Shale: Effects on petrophysical properties

Claudio Delle Piane, Julien Bourdet, Matthew Josh, M. Ben Clennell, William D. A. Rickard, Martin Saunders, Neil Sherwood, Zhongsheng Li, David N. Dewhurst, and Mark D. Raven

AAPG Bulletin

... et al. (2017). The gamma-ray level has been used to estimate TOC from a linear fitting function over the entire well (see Clennell et al., 2017...

Swelling Inhibition of Bentonite Clay by MgOH2 Precipitation Using Different Mg Salts

Archana Patel, Brian Towler, Victor Rudolph, Thomas Rufford

Unconventional Resources Technology Conference (URTEC)

... isotherm could be arranged in its linear form as Equation 1. Equation 2 Where,ce =equilibrium concentration(mg/L) Qe =amount adsorbed(mg/L/g) Qm =maximum...

Abstract: Overview of Exploration Geophysics--Recent Breakthroughs and Challenging New Problems, by Billy S. Flowers; #90971 (1976).

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Abstract: Mudstones Sealing Capacity of the Cenozoic Formations of the Red Sea Basin; #91209 (2025)

Fatimah Almohsen, Richard Collier, Quentin Fisher

Search and Discovery.com

... Diffraction (XRD), Quantitative Evaluation of Minerals (QEMScan) analyses integrated with gamma ray, density, porosity and sonic velocity petrophysical...

Abstract: Unlocking Potential: Advanced Characterization Techniques for Unconventional Mudstone Reservoirs; #91211 (2025)

Septriandi Chan, Moin Muhammad

Search and Discovery.com

...-resolution data at 20 mm intervals, including core photography, natural gamma ray, bulk density, P-wave velocity, magnetic susceptibility, elemental...

3D Seismic Depth Imaging As An Approach To Improve Pre

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A fracture-related deep Archean crystalline basement reservoir facilitated by thrusting and mineralogy: Newly discovered Bozhong 19-6 large gas field, offshore Bohai Bay Basin, China

Tao Ye, Anqing Chen, Chengming Niu, Jian Luo, and Mingcai Hou

AAPG Bulletin

... 300 m below the exposure-caused unconformity, is optimized by the feldspathoid dissolution due to depth-dependence weathering. However, the space...

Geological Controls on Formation Water Salinity Distribution Southeastern Greater Natural Buttes Field, Uinta Basin, Utah; #20213 (2013)

Tuba Evsan, Matthew J. Pranter, and Marc Connolly

Search and Discovery.com

... 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 0.55 0.6 0 NPHI dec 6/17/2013 Temperature Data Pickett Plot Temperature vs. Depth 2000 1...

New Attribute Energy Weighted AVO (EAVO) Application on The Acacia Bagus Structure, Jatibarang Field, North West Java Basin

Alif Fikri Haikal, Agung Dwi Alfianto, Bayu Dwijatmiko, Eddy Hartantyo

Indonesian Petroleum Association

... from the Shuey equation. The CDP Gather which represents the Shuey approximation is multiplied by each other or squared to produce an instantaneous...

Azimuthal AVO Gradient Anisotropic Analysis on Prediction of Fractures on Barnett Shale

Shiguang Guo, Bo Zhang, Tengfei Lin, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

... f t his pape r ha v e n ot be en re vie we d b y U RT eC a nd U R Te C d oe s no t wa rr ant th e ac c ur a c y, reliabilit y, or tim eline...