Compressibility of sorptive porous media: Part 2. Experimental study on coal

Shimin Liu and Satya Harpalani

AAPG Bulletin

... the first derivative of the true sorption-induced strain for methane. Using the empirical Langmuir-type fit, the true shrinkage- or swelling-induced...

Vicksburg-Jackson Shale Ridge

James A. McCarthy

Bulletin of South Texas Geological Society

... Frio. Superimposed upon the Section A-A′, there is a gravity profile of the first derivative. The gravity values are shown for convenience...

Integrated workflow for characterization of CO2 subsurface storage sites

Nomie Pernin, Cyrille Reiser, Eric Mueller

International Meeting for Applied Geoscience and Energy (IMAGE)

... described above, comprises the integration of high-quality broadband seismic data, well information, their derivative products, and several reservoir...

Revealing the discontinuities by 3D prestack diffraction separation and imaging

Chuangjian Li, Suping Peng, Xiaoqin Cui, Peng Lin

International Meeting for Applied Geoscience and Energy (IMAGE)

... to increment ∆hx and take its derivative as follows: dt 1 h p p (h  h )  ((t 0  x x ) x  x 2 x ) . (4) d( hx ) t 2 2 v NMO Second International...

Chapter 5: Seismic Trace Inversion

Tom Wittick

North Texas Geological Society

... becomes: R = [V2-V1]/[V2+V1]. The reflection coefficient across a rock boundary is the difference in velocity between the two rocks or the derivative...

San Antonio as Seen from Space

Alf Hawkins, Leslie Jones

South Texas Geological Society Special Publications

... derivative image Thematic mapper (TM) composite image Each image algorithm involves a different set of mathematical manipulations and produces...

From The Matrix To The Market - What You Don't Know Can Hurt You - Workshop Summary

William D. (Bill) McCain Jr., Kosta J. Leontaritis, Dave Bergman, Jack Lynn

PTTC

... and drill-stem tested in a low permeability rock surrounded by high permeability zones, the shape of pressure and pressure derivative plots appeared...

Geology of Gilsonite

Leland J. Davis

Utah Geological Association

... in the Uinta Basin is of paraffin base it is very likely that gilsonite is a paraffin derivative; if gilsonite is of asphalt base then there is apparently...

On the Evolution of the Nepheline to Hypersthene Normative Alkali Basaltic Rocks of Kuantan, Pahang, Peninsular Malaysia

K. R. Chakraborty

Geological Society of Malaysia (GSM)

... fractionation from hypersthene normative basaltic magma may yield nepheline normative derivative liquids producing an association of hypersthene...

Petroleum Systems of Western South America Assessed from Oil Geochemistry and Basin Redefinitions: Abstract

Craig Schiefelbein, Carlos Urien, William Dickson, Mark Odegard, John Zumberge

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... derivative. 6 PETROLEUM SYSTEMS OF WESTERN SOUTH AMERICA ASSESSED FROM OIL GEOCHEMISTRY AND BASIN REDEFINITIONS More than 2000 oils from onshore...

Evaluation of the Hydraulic Fracture Stimulation of the Colorado 32-7 No. 9 Well, San Juan Basin

Matthew J. Mavor, Rahul Dhir, John D. McLennan, Jay C. Close

Rocky Mountain Association of Geologists

... iIlustratt'S how the model simulations match the rl'COrded pressure change and its derivative. The agreement between the simulation and actual data...

Seismic imaging uncertainty using deep learning predicted Greens functions

Han Liu, Anar Yusifov, Muhong Zhou, Linda Hodgson

International Meeting for Applied Geoscience and Energy (IMAGE)

... ( 𝑃 𝑥𝑥 + 𝑃 𝑧𝑧 ) + 𝑆( 𝑥, 𝑧, 𝑡), where 𝑃 𝑡𝑡 is the second order time derivative of pressure field, 𝑣 is velocity model...

Structural subdivision of channel sand bodies based on frequency division coherence and attribute fusion

Qian Yu, Jianli Wang, Huajing Chen, Heng Zhang, Lien Bian

International Meeting for Applied Geoscience and Energy (IMAGE)

... seismic data. The derivative of u and H[u] with respect to time can be realized by finite difference. In addition, it is necessary to obtain...

Seismic Trace Inversion

Abilene Geological Society

... or the derivative. Integrating the reflection coefficient series will generate an acoustic impedance series or a velocity function if density...

Determination of the Horizontal Gravity Gradient with the Gravimeter

Stephen Thyssen-Bornemisza, W. F. Stackler

CSPG Bulletin

... with U. The equation is the first vertical derivative of the gravitational potential, commonly referred to as the gravitational acceleration. The unit...

Use of Gravimetry for Direct Exploration for Oil and Gas

I. O. Tsimel’zon

Petroleum Geology: A Digest of Russian Literature

...ions anomalies of the first derivative of gravity, have a sign opposite the sign of the local anomalies of Δg. For convenience of comparison of maps of gra...

A Gravity Map of the United States

Paul L. Lyons

Tulsa Geological Society

... method. In addition, the derivative methods of gravity interpretation lend themselves readily to fault delineation. The concept of the geotectogene...

Interactive channel interpretation using deep learning

Hao Zhang, Peimin Zhu, Zhiying Liao, Zewei Li, Dianyong Ruan

International Meeting for Applied Geoscience and Energy (IMAGE)

... tensor constructed by the directional derivative, and finally obtains a clearer and more detailed discontinuities. However, seismic attributes can...

3-D Tomographic Amplitude Inversion for Compensating Transmission Losses in the Overburden

Barry Hung, Kefeng Xin, Sergey Birdus, James Sun

Indonesian Petroleum Association

..., dips where F is the Frechet derivative matrix, m is the vector of attenuation perturbations and a is the vector containing the logarithmic amplitude...

Nacred: Looking for the Mother Lode of the Pearl River Mouth Basin

William Dickson, James Granath, Mark Odegard, Janice Christ

Southeast Asia Petroleum Exploration Society (SEAPEX)

... potential fields data. Figure 3. Gravity Isostatic First Vertical Derivative (1VD) centered on the Baiyun Sag showing adjacent sedimentary provinces...

Turning high resolution FWI model into pseudo-reflectivity: A case study using sparse OBN

Bing Bai, Yao Yu, Ruoyu Gu, Shenghong Tai, Denes Vigh

International Meeting for Applied Geoscience and Energy (IMAGE)

... ignore the density term or assuming a smoothed density, the reflectivity can be simplified as the derivative of velocity normal to the interface...

Geology and Hydrology of Tuaran

Majeed M. Faisal, Shariff A. K. Omang, Sanudin Hj. Tahir

Geological Society of Malaysia (GSM)

... monocrystalline, indicating a plutonic origin while others are polycrystalline suggesting a metamorphic derivative. The overall texture (grain size, sorting...

Integrated Interpretation of Seismically Derived Rock and Fracture Attributes for Shale Gas Reservoir Characterization

Gang Yu, Yusheng Zhang, Xing Liang, Uwe Strecker, Maggie Smith

Unconventional Resources Technology Conference (URTEC)

... for P and S impedance and derivative attributes produced volumes that relate to rock properties such as brittleness and rigidity that are likely...

Fracture-Porosity Identification from Anisotropy AVO and Fluid Substitution Modelling in Seismic 2D Data

Septian Prahastudhi, Tenny Octaviani, Ayi Syaeful Bahri, Yulia Putri Wulandari

Indonesian Petroleum Association

... phase, instantaneous frequency, amplitude 2nd derivative, envelope weighted frequency, similiarity, cosine of instantaneous phase, envelope weighted...

Application of deghosting method based on Greens theorem in reservoir description of Bohai Bay

Shaoxuan Li, Jiangfeng Zheng, Lei Gao, Zhiping Zhao

International Meeting for Applied Geoscience and Energy (IMAGE)

... seismic data when the pressure P and its normal derivative are measured: 81th Annual International Meeting, SEG, Expanded Abstracts, 2722–2726, doi...