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The AAPG/Datapages Combined Publications Database

Showing 28,265 Results. Searched 187,807 documents.

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Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)

Raul Cova, David Henley, and Kris Innanen

Search and Discovery.com

... of variations in the transmission angle through the low velocity layer (LVL) due to changes in offset and as a result of the structure of the LVL. Although PS...

2015

Improvement of Seismic Tomographic Imaging by Downward Continuation and Modified SIRT

Teuku A. Sanny, D. Santoso, D. Dahrin, Fatkhan, Alfian B.

Indonesian Petroleum Association

... 411 419 There were some problems with seismic tomographic reconstruction when the Low Velocity Layer (LVL) exists at the top of the investigation...

1996

Impact of Polymer or Surfactant Flooding on Permafrost Stability

Dongmei Wang, Shane Namie, Chunxiao Li

Unconventional Resources Technology Conference (URTEC)

... the geological subdivisions of permafrost distribution in the subsurface which included: an active layer (seasonally frozen ground); taliks (unfrozen ground...

2019

Thermal Considerations in Permafrost

Arthur H. Lachenbruch

Pacific Section of AAPG

.... Survey Bull. 1052-B, p. 51-69. Lachenbruch, A. H., 1957b, Thermal effects of the ocean on permafrost: Geol. Soc. America Bull., v. 68, no. 11, p...

1970

Permafrost Studies in the Norman Wells Region, Northwest Territories

P. J. Kurfurst, R. M. Isaacs, J. A. Hunter, W. J. Scott

CSPG Special Publications

.... B, p. 155–159. Lachenbruch, A. H., 1970, Some estimates of the thermal effects of a heated pipeline in permafrost: U.S. Geol. Surv., Circ. 632...

1973

7.0 The Structural Significance of Seismic Velocity - A Progress Report

P. E. Gretener

AAPG Special Volumes

..." stands for any unfrozen ground in the permafrost areas at high latitude. It may occur above the permafrost as the active layer (seasonal unfreezing...

1981

Electromagnetic Survey of Permafrost Thickness in Northern Alaska in 1969 and 1970

George V. Keller

Pacific Section SEPM

... been undertaken, there has been an intensified interest in the development of geophysical methods for surveying the thickness of the permafrost layer...

1987

Abstracts: Near-surface Velocity Model Building and Statics in Permafrost Regions; #90173 (2015)

Tianfei Zhu, Yan Yan, and Jon Downton

Search and Discovery.com

.... Moreover, due to the vertical temperature gradients, these regions often have a high-velocity permafrost surface layer underlain by a low-velocity...

2015

Temperature and Depth of Permafrost on the Alaskan Arctic Slope

A. H. Lachenbruch, J. H. Sass, L. A. Lawver, M. C. Brewer, B. V. Marshall, R. J. Munroe, J. P. Kennelly Jr., S. P. Galanis Jr., T. H. Moses Jr.

Pacific Section SEPM

... Ocean. The observed variation in permafrost temperature and depth cannot result primarily from effects of surface bodies of water or from broad regional...

1987

Challenges to Processing, Interpretation and Depth Conversion Posed by Dynamic Statics Over the Ujung-Pangkah Field

Donald Easley, Ferry Yustiana

Indonesian Petroleum Association

... as relatively low value. A representative T-D curve is attached to show the quality of the data acquired. The Influence of the Low Velocity Layer (LVL...

2009

Late Pleistocene Air Temperatures in the Bighorn Basin, Wyoming: Inferences from Periglacial Ice-Wedge Casts and the Numerical Modeling of Near-Surface Ground Temperatures

Nick Visser, Henry P. Heasler, Brainerd Mears Jr.

Wyoming Geological Association

... in the periglacial environment. Permafrost typically occurs below a layer of seasonal thaw, referred to as the active layer. The bottom of the active...

1996

Discussion

Robert Stoneley

Pacific Section of AAPG

... it has been asserted that the base of the permafrost at Prudhoe Bay lies at depths of 1,800 to 2,000 feet, and since this is considerably deeper than has...

1970

The application of seismic shothole drillers’ log data to petroleum exploration and development

I. Rod Smith

CSPG Bulletin

... materials within surface unconsolidated materials (the “weathered zone;” e.g. muskeg, permafrost) are well known (Steeples and Baker, 1998; Steeples et al...

2012

Quantitative Analysis of Volcanic Lithic Fragments

Mathew D. Affolter, Raymond V. Ingersoll

Journal of Sedimentary Research (SEPM)

... (Southern California): Sedimentology, v. 42, p. 783–804. Critelli, S., Le Pera, E., and Ingersoll, R.V., 1997, The effects of source lithology, transport...

2019

Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada

Gilles Bellefleur

Search and Discovery.com

... effects, especially those related to thick permafrost, could improve seismic imaging of hydrate-bearing sediments and reservoir characterization...

Unknown

Seismic Wave Attenuation in Gas Hydrate-Bearing Sediments from Vertical Seismic Profiling Data, Mallik, Northwest Territories, Canada

Gilles Bellefleur

Search and Discovery.com

... effects, especially those related to thick permafrost, could improve seismic imaging of hydrate-bearing sediments and reservoir characterization...

Unknown

Abstract: Converted Wave Receiver Statics from First Break Mode Conversions; #90171 (2013)

Kristof De Meersman and Marcelo Roizman

Search and Discovery.com

... converts to an S-wave at the base of the weathered layer both phases are recorded at surface. The arrival time difference between the two can be used...

2013

Abstract: Converted Wave Receiver Statics from First Break Mode Conversions; #90171 (2013)

Kristof De Meersman and Marcelo Roizman

Search and Discovery.com

... converts to an S-wave at the base of the weathered layer both phases are recorded at surface. The arrival time difference between the two can be used...

2013

Abstract: Static Corrections Via Raypath Interferometry: Recent Field Experience; #90224 (2015)

David C. Henley

Search and Discovery.com

... in the MacKenzie Delta, for which surface-consistency was violated by the high-velocity permafrost surface layer, and which manifested instances of multipath...

2015

Seismic Weathered or Aerated Surface Layer

O. C. Lester, Jr.

AAPG Bulletin

...Seismic Weathered or Aerated Surface Layer O. C. Lester, Jr. 1932 1230 1234 16 12. (December) The existence of a comparatively thin surface layer...

1932

Importance of Sea-Level Controlled Depositional Architecture to the Understanding of Permafrost and Gas Hydrates on High Latitude Shelves; #80124 (2011)

Philip Hill, Scott Dallimore, Alan Taylor

Search and Discovery.com

...Importance of Sea-Level Controlled Depositional Architecture to the Understanding of Permafrost and Gas Hydrates on High Latitude Shelves; #80124...

2011

Abstract: Point Receiver Acquisition and Processing for Arctic Near Surface Challenges; #90171 (2013)

C. Strobbia, A.Glushchenko, A. Laake, P.L.Vermeer, S. Papworth, and Y. Ji

Search and Discovery.com

... with discontinuous or sporadic permafrost, or with a thick seasonally frozen layer, lateral heterogeneities occur due to the transition between frozen patches...

2013

Diagenetic and Sedimentologic Explanation for High Seismic Velocity and Low Porosity in Mesozoic-Tertiary Sediments, Svalbard Region: GEOLOGIC NOTES

Anders Elverhoi , Gisle Gronlie

AAPG Bulletin

... the carbonate content (Elverhoi and Bjorlykke, 1978). When determining the in-situ velocities we were able to disregard the weathered layer and use...

1981

Gas Hydrates in Canadian Sverdrup Basin, Canadian Arctic Archipelago: A Potential New Focus for Canadian Resource Characterization; #80094 (2010)

Kirk Osadetz, Tom Brent, Zhuoheng Chen, Peter Hannigan, Jacek A. Majorowicz, Jan Safanda

Search and Discovery.com

... -24 -26 -28 -30 41 ka cycles 200 400 600 depth, m •Thermal insulation effects on the base of the GH layer are significant, but this acts contrary...

2010

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