Analysis of global navigation satellite system data along the Southern Gas Corridor and estimate of the expected displacements

Giuliana Rossi, Riccardo Caputo, David Zuliani, Paolo Fabris, Massimiliano Maggini, and Panagiotis Karvelis

Environmental Geosciences (DEG)

... of the route showing the global positioning system velocities (black arrows) and relative errors (ellipses). Location map in Figure 1. The yellow...

Geophysical Contributions to the COASTPLAN Project, Lae Area, Papua New Guinea, 1998

John Milsom

Geological Society of Malaysia (GSM)

... the assumption that the 1998 Nadzab base was at the same height as the Abers and McCaffrey (1994) gravity station. The additional errors in the elevations...

Isostatic Gravity Map of the Eastern Caribbean Region

Sam A. Bush, Patricia A. Bush

GCAGS Transactions

...------------------------ Table I. Principal facts at gravity stations. End_Page 282------------------------ Figure 1. Location and generalized...

Measurement Environments Effect on DTS Surveys: A Case Study on Fiber Cable-Wellbore Coupling

Kagan Kutun, Ge Jin, Jennifer L. Miskimins

Unconventional Resources Technology Conference (URTEC)

... of Figure 2, and the possible causes of the thermal coupling effect can be speculated as (1) the varying annular cable location within the radial cross...

Applications of a Novel Hybrid Model for Unconventional Reservoirs

Joseph A. Ayoub, Brian Blakey, S Krishnamurthy, R.K.M. Thambynayagam

Unconventional Resources Technology Conference (URTEC)

... simulation results of horizontal wells intersecting multiple orthogonal hydraulic fractures. The new model is then used to show the effect of angle between...

Eolian Cross-Bedding in the Beach Dune Environment, Sapelo Island, Georgia

Lynton S. Land

Journal of Sedimentary Research (SEPM)

..., the net effect being to increase the dip angle rapidly to the angle of repose. Beds dipping at angles greater than 34 degrees probably require special...

Texture as Characteristic of Clastic Deposition

R. Passega

AAPG Bulletin

... in suspension, their deposits form Pattern V. This pattern makes a small angle with the ordinates. C may vary considerably with little effect...

Application of horizontal wells in three-dimensional shale reservoir modeling: A case study of Longmaxi–Wufeng shale in Fuling gas field, Sichuan Basin

Guochang Wang, Shengxiang Long, Yiwen Ju, Cheng Huang, and Yongmin Peng

AAPG Bulletin

... (2016) studied the effect of trajectory data errors on well locations in the Upper Cretaceous Eagle Ford Shale in the Permian Basin of Texas...

The Wave Equation Applied to Migration

D. Loewenthal, L. Lu, R. Roberson, J. Sherwood

Southeast Asia Petroleum Exploration Society (SEAPEX)

... dipping event is propagated via the finite difference equations at an angle of 6 to 10 degrees less than the true angle of 39 degrees. Errors...

Gravity and Magnetic Studies of the Wind River Reservation, Wyoming

Robert P. Kucks

Wyoming Geological Association

... Basin, has been a favorable location for oil and gas exploration. A geophysical study, funded by the Shoshone and Arapaho Tribal Council...

Petrographic Study of Salt-Dome Cap Rock: RESEARCH NOTES

Donald C. Barton

AAPG Bulletin

... conclusions are here stated briefly. 1. The limestone cap is an alteration product of the gypsum-anhydrite cap. 2. Alteration is not an effect...

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

Depth conversion and seismic inversion of the Scarborough gas field

Joseph Kremor, Manish Agarwal, Paul Spaans, Ung Sing Wong

Petroleum Exploration Society of Australia (PESA)

... with angle within the range of each partial angle stack; All errors in the recorded data are propagated into the inversion products without attenuation...

Belle Isle Torsion-Balance Survey, St. Mary Parish, Louisiana

Donald C. Barton

AAPG Bulletin

... to the thickness of the cap, 58 per cent correct. The causes of the errors were probably the unfavorable marshy terrane, the assumption of a slightly...

Abstract: Q-estimation from Uncorrelated Vibroseis VSP Model Data; #90172 (2014)

Arnim B. Haase

Search and Discovery.com

... is the delayed onset of the signal at the deeper station. Less noticeable is the increased decay rate at depth. The cross-correlation result of the received...

Photogeologic Fracture-Trace Mapping in Appalachian Plateau: GEOLOGICAL NOTES

L. H. Lattman , R. P. Nickelsen

AAPG Bulletin

.... A good check on joint directions in the bedrock could be made in the strip mines. The relief of 400 feet would allow some observations on the effect...

Wind-Oriented Gastropod Shells as Indicators of Paleowind Direction: NOTES

J. Mark Erickson

Journal of Sedimentary Research (SEPM)

... was made of use of individual fossil shells directly as wind current indicators. LOCATION AND GENERAL DESCRIPTION The coast along Tomales Bay south...

Measurement of Subsurface Fractures from Dipmeter Logs

E. A. Babcock

AAPG Bulletin

..., even where the hole is essentially round, one electrode pair shows a slightly wider separation (the effect is probably due to calibration errors...

Identifying Cumulative TVD Error in Horizontal Wells Drilled with Rotary Steerable Systems

Joel Dunn

Unconventional Resources Technology Conference (URTEC)

... to populate a steering sheet that can be processed through an algorithm designed to account for TVD errors resulting from the Stockhausen effect. By capturing...

The Effects of Seismic Data Conditioning on Pre-Stack Simultaneous Impedance Inversion

Scott W. Singleton

GCAGS Transactions

... effect of creating very similar wavelets in all angle stack ranges, with the exception of a minor fall-off in high frequencies in the farther angles...

Granite and Limestone Velocity Determinations in Arbuckle Mountains, Oklahoma

B. B. Weatherby, W. T. Born, R. L. Harding

AAPG Bulletin

... within observational errors and yield a value of 17,950 ft./sec. for the longitudinal wave velocity. The data taken over the shorter span show...

Accuracy of Bore-Hole Surveying by Orientation from the Surface

R. P. Mclaughlin

AAPG Bulletin

... effect of erratic behavior of the drill pipe. Consideration of the magnitude of errors arising from inaccurate measurement of pipe rotation is a broad...

Influence of Lithologic Variability on the Distribution of Oil in Natural Reservoirs, and the Construction of Reservoir Maps

V. G. Umnov

Petroleum Geology: A Digest of Russian Literature

.... With an increase in sandiness at the top of the stratum, the opposite effect arises: The pool extends to the flank of the structure. With lithologic variations...

Abstract: Resolution and Location Uncertainties in Surface Microseismic Monitoring; #90174 (2014)

Michael Thornton

Search and Discovery.com

..., resolution and uncertainty are distinct. Resolution refers to the size and shape of the focused event image, while location uncertainty describes the effect...

Shallow Temperatures and Thermal Regime in the Hydrocarbon Province of Tierra del Fuego

Gary W. Zielinski , Peter M. Bruchhausen

AAPG Bulletin

... with the RMS error for each regression as a function of µ. RMS errors are generally low and in the millidegree range. However, with the exception of station 4...