A Self-Adaptive Optimization Solution to Petrophysical Properties Inversion from Well Logs

Search and Discovery.com

... been used to inverse the porosity, volumes of clay and mineral components from well logs using the selected mineral components combined with both...

Abstract: Migration Velocity Analysis of Incomplete Data Using LSPSM CIGs; #90174 (2014)

Abdolnaser Yousefzadeh, John C. Bancroft, and Gary F. Margrave

Search and Discovery.com

... a blurred image of the earth subsurface reflectivity. This shortcoming of Kirchhoff can be improved by using a generalized inverse...

Chapter Five: Deep-Water Conglomeratic Megabeds: Analogues for Event Beds of the Brae Formation of the South Viking Graben, North Sea

Guilherme Bozetti, Bryan T. Cronin, Benjamin C. Kneller, Mark A. Jones

AAPG Special Volumes

...-density turbidity current moves gravel as bedload and deposits the lower clast-supported conglomeratic division, including inverse-graded base (traction...

Rift-Initiated Permian to Early Cretaceous Subsidence of the Sverdrup Basin

R. A. Stephenson, A. F. Embry, S. M. Nakiboglu, M. A. Hastaoglu

CSPG Special Publications

... than both the thermal conduction or Fourier constant, ∼107 y, and the evolution period of sedimentary basins, 108 y. The governing equations...

Magnetotelluric Transect of the Sevier Overthrust Belt in Southwestern Utah and Eastern Nevada

Jeffrey M. Johnston, Philip E. Wannamaker

Utah Geological Association

... and T is the period in seconds (inverse of frequency in Hz). One observes that the downgoing incident waves can reach the deeper structures...

Wave-Dominated Deltaic Sedimentation in the Devonian Bokkeveld Basin of South Africa

Anthony J. Tankard, John H. Barwis

Journal of Sedimentary Research (SEPM)

...--fourier grain shape analysis: Jour. Sed. Petrology, v. 50, p. 1095-1100. CLARKE, J. M., 1913, Fosseis devonianos do Parana: Serv. Geol. Min. Brasil...

Chemical and Physical Weathering of Fluvial Sands in an Arctic Environment: Sands of the Sagavanirktok River, North Slope, Alaska

Rebecca S. Robinson , Mark J. Johnsson

Journal of Sedimentary Research (SEPM)

...). SiO2 and Al2O3 (Fig. 3E), which commonly show a strong inverse correlation in clastic rocks (see, for example, Pettijohn et al. 1987), show a more...

Geothermal Resources

C. R. B. Lister

Circum Pacific Council Publications

... turbidite deposits, show that basal temperatures of 150°C are com­ mon, and a few temperatures of 200°C have been recorded. There tends to be an inverse...

Deepwater debrites and linked megaturbidites in confined basins: An example from the Onnuri Basin, East Sea of Korea

Deniz Cukur, In-Kwon Um, Jong-Hwa Chun, Gwang-Soo Lee, Gee-Soo Kong, Samuel Y. Johnson, Senay Horozal

Journal of Sedimentary Research (SEPM)

... processes of continental margins worldwide (Hampton et al. 1996). Under certain conditions, they will transform into sediment gravity flows, including...

Direct Characterization of Complex Fracture Network Using Improved Rate-Transient Analysis Method in Tight Oil Reservoir Exhibiting Multiphase Flow

Jianquan Tian, Bin Yuan, Jinchang Li, Wei Zhang

Unconventional Resources Technology Conference (URTEC)

... is the vaporized oil to gas ratio. The similarity-based method can reduce the number of independent variables and transform the governing partial...

Mesozoic Extension and Styles of Basin Formation in Atlantic Canada: Chapter 12: North American Margins

A. J. Tankard, H. J. Welsink

AAPG Special Volumes

..., p. 107-124. Keen, C.E., and R.T. Haworth, 1985, D-2 Transform margin south of Grand Banks: offshore eastern Canada: Geological Society of America...

Decline Curve Analysis in Unconventional Reservoirs Using a Variable Power Law Model: A Barnett Shale Example

Uchenna Odi, Sarah Bacho, Johan Daal

Unconventional Resources Technology Conference (URTEC)

... quadratic changes in loss ratio and power law changes in inverse loss ratio as the primary motivation in deriving these decline curve models. One of our...

Enhancing Consistency Between Geological Modeling and Seismic Pre-Stack Amplitude Inversion With Pseudo-Wells: An Example From the Gendalo Field

David Glenn, Febry Hariyannugraha, Rhys Schneider, Khristina Kirschner, Skip Walden, Steve Smith, Eduardo Berendson, Chris Skelt, Leonard Lisapaly, Robert van Eykenhof, Mark Sams

Indonesian Petroleum Association

..., seismic attributes, and a conceptual geological model. A transform between NTG and elastic rock properties enabled conversion of the * ** *** **** Unocal...

Carbonate Petrology of the Nido B-3A Core, Offshore Palawan, Philippines

Mark W. Longman

Special Publications of SEPM

... in the South China Sea were the dominant events although minor transform and strike-slip faulting may also have occurred, particularly along the Ulugan Bay...

Effect of Errors in Initial Pressure Measurement on Rate-Transient Analysis in Unconventional Reservoirs

Himanshu Shekhar Jha, Aaditya Khanal, W John Lee

Unconventional Resources Technology Conference (URTEC)

... the inverse of PNR (given by Eq. 2) and provides more straightforward and interpretable results than PNR (Song and Economides, 2011; Jha and Lee, 2017a...

Predicting the time-evolution of CO2 saturation through a combination of rock physics and full-waveform inversion

Qi Hu, Dario Grana, Kristopher A. Innanen

International Meeting for Applied Geoscience and Energy (IMAGE)

... are altered at each iteration by an update proportional to ∂ A/mi . To transform to the new parameterization r, we compute the chain rule ∂A j ∂ ri...

Atenuacion de Ruidos Coherentes de Origen Superficial en el Procesamiento de Lineas Sismicas del Area Maquia-Cachiyacu, Cuenca Ucayali, Subandino del Peru [PAPER IN SPANISH] Coherent Attenuation of Noise Originating from the Surface while Processing Seis

Javier Soto Gomez

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... longitudinales de caracter inverse y orientacion Noroeste-Sureste. De estas fall as, la principal es la que delimita la estructura en su flanco Este. Las...

Sedimentology and Diagenesis of the Miocene Peace Valley Formation, Ridge Basin, Southern California

Paul R. Smith

Pacific Section SEPM

... not concentrated near the top. The presence of abundant large matrix-supported clasts and inverse grading is common diagnostic criteria for recognition...

Varying Least Principal Stress along Lithofacies in Gas Shale Reservoirs: Effects of Frictional Strength and Viscoelastic Stress Relaxation

Partha Pratim Mandal, Reza Rezaee, Mustafa Sari, Joel Sarout

Australian Petroleum Production & Exploration Association (APPEA) Journal

... viscoelasticity, relaxation modulus function E(t) is derived through a forward and inverse Laplace Transform as follows: 1 EðtÞ % tÀn ; B ð2Þ where 1/B...

Calibration of PS Shear Wave Anisotropy in a Mississippi Lime Play, North-Central Oklahoma

Scott Singleton, Shihong Chi, Lisa Sanford, Paul Constance

Unconventional Resources Technology Conference (URTEC)

... rotation in the maximum horizontal stress direction with depth (time). An inverse problem can be formulated that solves for the optimal fast shear wave...

A New Pressure Transient Testing Method for Gas Condensate Wells

W. Jatmiko

Indonesian Petroleum Association

... to treat them as one of a 'liquid' dissolved in a 'gas' (the inverse black oil model). The composition dependence with pressure may need to be treated...

Beyond chi-squared: Additional measures of the closeness of a model to data1

Alan G. Jones

Petroleum Exploration Society of Australia (PESA)

...rt Transform relation that exists in 1D for the rho and pha curves also exists for their differences. We expect a second peak in the pha differenc...

Louisiana Cheniers: Settling from High Water

William F. Tanner

GCAGS Transactions

... of Postma, or something close to it; Tanner and Demirpolat, 1988). Another useful device is a plot of kurtosis (log transform; vertical axis) vs standard...

Drilling and Completion Anomaly Detection in Daily Reports by Deep Learning and Natural Language Processing Techniques

Hongbao Zhang, Yijin Zeng, Hongzhi Bao, Lulu Liao, Jian Song, Zaifu Huang, Xinjin Chen, Zhifa Wang, Yang Xu, Xin Jin

Unconventional Resources Technology Conference (URTEC)

... is the product of TF (term frequency) and IDF (inverse document frequency), which is used to evaluate the importance of a word for a text record...

Neotectonic Behavior of the Alpine-Mediterranean Region: Chapter 4

F. Horvath

AAPG Special Volumes

...., The solution of the inverse problem in geophysical interpretation: New York, Plenum, p. 327-334. Fourniguet, J., J. Vogt, and C. Weber, 1981, Seismicity...