Tilt-Depth: A Simple Depth-Estimation Method Using First Order Magnetic Derivatives, by James D. Fairhead, Ahmed Salem, and Simon E. Williams; #40390 (2009).

Search and Discovery.com

Q tomography workflow: Land case study in the Eagle Ford Play

Itai Sharabi, Matan Shustak, Orly Kletenik-Edelman, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

... iteratively. attenuation effect. The objective function to be minimized is formulated as the log spectral first derivative of the signal spectrum, referred...

Exploring the horizontal component of OBN surveys for added value to imaging

Samara Omar, Jim Simmons, Carlos Calderón

International Meeting for Applied Geoscience and Energy (IMAGE)

... migration, we applied a fractional time derivative to the offset-plane images to compensate for the Kirchhoff integral. Prior to making interpretations...

Method of Determining Conformance Factor for Bay-Like Pools with Extraction of Oil by an Active Agent

O. K. Obukhov

Petroleum Geology: A Digest of Russian Literature

... in as large number of profile sections (longitudinal and transverse) as one wishes. Random errors will be higher, the less representative is the derivative...

Modeling Well Interference and Optimal Well Spacing in Unconventional Reservoirs Using Fast Marching Method

Jixiang Huang, Feyisayo Olalotti-Lawal, Michael J. King, Akhil Datta-Gupta

Unconventional Resources Technology Conference (URTEC)

..., ft3 drainage volume, ft3 incomplete volume moment integral, ft3×hrn/2 incomplete pressure drop moment integral, hrn/2+1 derivative of pore volume...

Process Control Improvement to Optimize Banyu Urip Plant Reliability

Cindy Chairunissa, Aditya K Harjanto

Indonesian Petroleum Association

... by field instrumentation, processes the logic – mostly using single-loop Proportional-Integral-Derivative (PID) controllers and provides output to end-field...

Gleaning Meaningful Information from Seismic Attributes

Search and Discovery.com

... an integral part of most interpretation projects completed today. For doing an effective job or for extracting accurate information from seismic attributes...

Shallow Conduit Behavior of Silicic Magma Chambers: A Detailed Thermal Model; #40949 (2012)

Cathina Gunn de Rosas and Glen Mattioli

Search and Discovery.com

... is given by” equation 3 (Denlinger & Hoblitt, 1999). “where a1 is the first root of the Bessel function J0, and J1 is the derivative of J0...

Post-Fracture Pressure Decay: A Novel (and Free) Stage-Level Assessment Method

Michael Sullivan, Behnam Zanganeh, Austin Springer, Christopher Clarkson

Unconventional Resources Technology Conference (URTEC)

... optimization. The authors invite other operators to try this technique and discuss their observations. URTeC 970 2 Introduction Due to their very low...

Well to Well Interference: Quantifying Connectivity and Understanding How Much is Too Much - A STACK Case Study

Trevor Ingle, Hart Greenwood, Mark Wilkins, Mouin Almasoodi, Kyle Haustveit

Unconventional Resources Technology Conference (URTEC)

... on the plot above is the change in pressure relative to the forecasted pressure trend from before the offsetting well was POP’d. The derivative curve...

Well-Test Interpretation in High Temperature Deltaic Gas Sands

Ouahiba Ibrahim, Alain Neveux

Southeast Asia Petroleum Exploration Society (SEAPEX)

... Thailand, December 1993. 4. M.A. Sabet, Well Test Analysis. 5. E.A. Proano & I.J. Lilley: “Derivative of Pressure: Application to Bounded Reservoir...

Colour Image Transformations of Wireline Logs as a Medium for Sedimentary Profile Analysis

D.R. Collins, J.H. Doveton

CSPG Bulletin

.... Figure 4. Composite colour image from derivatives of a synthetic bellshaped trend of thin sandstone beds. Figure 5. Composite colour derivative image...

Upside down Rayleigh-Marchenko imaging: Towards a practical exact redatuming scheme for ocean bottom acquisitions

Ning Wang, Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the Rayleigh integral representation (Wapenaar and Berkhout, 1989), we derive the first exact redatuming scheme that can handle both free-surface...

Can ISIP Really Tell Closure Pressure? - Case Study of Consecutive DFITs in the Eagle Ford

Shintaro Kuroda, Shunichi Watanabe, Kenji Ueda

Unconventional Resources Technology Conference (URTEC)

... development. Therefore, the correlation built by consecutive DFITs is useful 2 URTEC-208276-MS because that correlation can provide operators...

Reservoir Diagenesis and Convective Fluid Flow: Part 1. Concepts and Principles

J. R. Wood, T. A. Hewett

AAPG Special Volumes

... and s is the density of the solid (quartz in the present discussion). Since C is a function of T and P, the total derivative is [EQUATION (3...

First Ever Polymer Flood Field Pilot to Enhance the Recovery of Heavy Oils on Alaska's North Slope„Polymer Injection Performance

Samson Ning, John Barnes, Reid Edwards, Kyler Dunford, Kevin Eastham, Abhijit Dandekar, Yin Zhang, Dave Cercone, Jared Ciferno

Unconventional Resources Technology Conference (URTEC)

... efforts by multiple operators, total heavy oil production rate from all ANS fields just reached 57,287 BPD by February 2019 (Monthly Production Reports...

Permeability Estimation from Fracture Calibration Test Analysis in Shale and Tight Gas

Han Xue, Christine Ehlig-Economides

Unconventional Resources Technology Conference (URTEC)

... in pressure (ISIP) and subsequent falloff pressures and its derivative with respect to the logarithm of the falloff superposition time) can be used...

Thermal Conductivity of Organic Shales and Coals … How Their Presence and Persistence Effect Thermal Maturity, #41672 (2015).

Robert J. Coskey, Steve Cumella

Search and Discovery.com

..., United States 2 Abstract Mature source-rock intervals commonly act as thermal insulators to heat flow and can be identified by the first derivative...

Application of Surrogate Models and Derivative-Free Optimization in Geothermal Reservoir Modelling, #42494 (2020).

Rosalind Archer, Ariel Vidal,

Search and Discovery.com

...Application of Surrogate Models and Derivative-Free Optimization in Geothermal Reservoir Modelling, #42494 (2020). Rosalind Archer, Ariel Vidal...

Abstract: Faulting Associated with Deep-Seated Salt Domes in the Northeast Portion of the Mississippi Salt Basin

Dudley J. Hughes

Bulletin of South Texas Geological Society

...-seated dome with which it is associated. Faulting over deep-seated salt domes can usually be related to derivative gravity minimums which...

Pressure Analysis for Volume Fracturing Well in Tight Reservoirs Considering Dynamic Threshold Pressure Gradient and Stress Sensitivity

Zhongwei Wu, Chuanzhi Cui, Xiangzhi Cheng, Zhen Wang, Yingfei Sui, Xiaoyan Zhao

Unconventional Resources Technology Conference (URTEC)

... derivative are analyzed. The six flow regimes are identified by the dimensionless pressure and pressure derivative curve. They are fracture linear flow...

Appendix III: High-Sensitivity Aeromagnetic Analysis

William C. Pearson

Rocky Mountain Association of Geologists

... anomalies that while subtle, explain important Phanerozoic geological features. Interpretation of second vertical derivative shaded relief images...

Comparison of Wireline Formation Testing and Drill Stem Testing in Coal Bed Methane Reservoirs

Iain Paton, Peter Westaway, Tan Chi Ying

Indonesian Petroleum Association

...-in, and of WFT tests, have been evaluated and compared. The paper also discusses some of the abnormal trends in the pressure derivative of the WFT, which...

Visible Spectroscopy--A Rapid Method for Determining Hematite and Goethite Concentration in Geological Materials: RESEARCH METHOD PAPER

Bobby C. Deaton, William L. Balsam

Journal of Sedimentary Research (SEPM)

... concentrations, as is shown in this paper and Barranco et al. (1989). To make the spectral data easier to interpret, we calculated the first derivative...

Faulting Associated with Deep-Seated Salt Domes in Northeast Part of Mississippi Salt Basin: ABSTRACT

Dudley J. Hughes

AAPG Bulletin

... it is associated. Faulting over deep-seated salt domes can usually be related to derivative gravity minimums which are expressions of the salt uplifts causing...