Plant debris accumulations in the Preto River Subbasin, Itanhaém, São Paulo, Brazil: Insights from geotechnology

Fresia Ricardi-Branco, Marco Ianniruberto, Adalene Moreira Silva, Fabio Branco

PALAIOS

... (left) and lateral side-scan sonar (right) images at Site 2. A–B) Acoustic blanking resulting from the presence of gas accumulations. fragile...

Seismic attributes for enhancing structural and stratigraphic features: Application to N-Field, Malay Basin, Malaysia

Nur Shafiqah Shahman, Norazif Anuar, Mohamed Elsaadany, Deva Prasad Ghosh

Geological Society of Malaysia (GSM)

..., acoustic blanking happens in Inline 4080 is showing the vertical seismic wipeout zone. According to Jamaludin et al. (2015), acoustic blanking happens when...

A case study of natural gas hydrates (NGH) in offshore NW Sabah: Identification, shallow geohazard implication for exploration drilling, extraction challenges and potential energy resource estimation

John Jong, Goh Hui Sin, Steve McGiveron, Jim Fitton

Geological Society of Malaysia (GSM)

... (Dillon & Max, 2000). The area of low reflection amplitudes is known as the “blanking” zone (Behain, 2005; Lin et al., 2009) (Figure 10). Based...

Exploration of the Deep Gulf of Mexico Slope Using DSV Alvin: Site Selection and Geologic Character

Harry H. Roberts, Chuck R. Fisher, Jim M. Brooks, Bernie Bernard, Robert S. Carney, Erik Cordes, William Shedd, Jesse Hunt Jr., Samantha Joye, Ian R. MacDonald, Cheryl Morrison

GCAGS Transactions

... for the flux of fluids and gases to the modern sea floor. This pathway is defined by acoustic blanking of the seismic records, suggesting both reflection...

The Long Beach Oil Field and Its Problems

A. T. Schwennesen, R. M. Overbeck, H. H. Dubendorf

AAPG Bulletin

... found that by blanking off the lean portions, wells will give as good a yield as if the whole zone were open. In present-day deep drilling...

Completion Design Guidelines for Severe Gas Wells

D. Steel, R. Rosli

Indonesian Petroleum Association

... and is used primarily for landing blanking plugs if it is necessary to secure the well for any reason. Experience has shown that to date the only area...

The Geophysicists' Bane: Multiple Suppression on the North West Shelf

C. R. T. Ramsden, M. R. Hobson, R. Cooper

Petroleum Exploration Society of Australia (PESA)

... and the northern Barrow Sub• basin), the multiples need to be accurately identified or modelled and removed by 'blanking' or 'muting'. Successful...

Mesozoic Petroleum Prospectivity of Area A of the Timor Gap Zone of Co-Operation

P. E. Williamson, I. H. Lavering

Indonesian Petroleum Association

... include: a zone of low reflectivity corresponding to the complex; velocity pull-up beneath the complex; blanking of seismic energy below producing...

Investigation of Possible Shallow Gas Accumulations Associated with Pockmarks on the Otago Slope Southeast of New Zealand

Jasper Hoffmann, Andrew Gorman, Gareth Crutchley

Petroleum Exploration Society of Australia (PESA)

... reflections, acoustic turbidity or acoustic blanking (Davis, 1992). While acoustic turbidity is caused by the scattering of acoustic energy and rather...

Effective Thru-Tubing Gravel Packing Methods in Attaka Field

C. C. Lee, Michael Chad Darby, Timothy R. Popp

Indonesian Petroleum Association

..., torqueing them up with pipe wrenches. Made up the 1.9" blanking plug and the release tool (Hook up nipple) to the top of the gravel pack assembly. Ran...

Completion and Perforation Strategy Successfully Improved Hydraulic Fracturing Operation in Deep Hpht Well: A Case History

Erwin Kurniawan, Ery Mohamad Fajar Putra, Eko C. Aprilianto, Farid Ghozali, Sudjati Rachmat

Indonesian Petroleum Association

... are the critical components of the upper completion system: • • • • • Packer bore receptacle Flow coupling Removable by-pass 3.668-in. blanking plug Bottom...

Structure and Stratigraphy of the Blake Escarpment Based on Seismic Reflection Profiles: Rifted Margins

R. E. Sheridan , C. C. Windisch , J. I. Ewing , P. L. Stoffa

AAPG Special Volumes

... rise is a real structure rather than an acoustic blanking. Velocity Analyses: To observe better the lateral facies changes in the sediments...

Complex Geology and Gas Hydrate Dynamics Characterize Mississippi Canyon Block 798 on the Upper Continental Slope of the Northern Gulf of Mexico

Geresi, Erika, Lutken, Carol, McGee, Tom, Lowrie, Allen

GCAGS Transactions

... to the phenomenon of "reflection blanking" in the presence of gas hydrates. According to Dillon et al. (1994) this phenomenon can occur when hydrates are present...

Paleotectonic and Paleogeologic Maps of Central and Western North America

A. J. Eardley

AAPG Bulletin

... connections have been drawn across major tectonic elements, blanking them out entirely, where perhaps the seas had only infrequent or shifting...

Computer Modeling of Multiple Surfaces With Faults: The Ivanhoe Field, Outer Moray Firth Basin, U.K. North Sea: Chapter 12

N. J. Hooper, J. G. M. Raven, M. J. Kilpatrick

AAPG Special Volumes

... as per step 1). 4) Truncate the upthrown fault blocks at the upthrown traces by blanking the surface between the computed loci of upthrown and downthrown...

Late Pleistocene Shelf-Edge Deltas and Growth Faulting in the Northeast Gulf of Mexico: The Early Development of Shelf Margin Reservoir Systems, by Richard H.Fillon and Harry H. Roberts,#30051 (2007).

Search and Discovery.com

Estimation of Methane from Kerala - Konkan Onshore Peatlands of South West Coast India by Ground Penetrating Radar Method, #51460 (2018).

K. Devi, Rajesh R Nair

Search and Discovery.com

... energy (“EM blanking”) by free - phase gas (by the displacement of water by hydrocarbon gas vapours) results in regions of faint or absent reflectors...

Surface Sediment Hydrocarbons as Indicators of Subsurface Hydrocarbons: Field Calibration of Existing and New Surface Geochemistry Methods in the Marco Polo Area, Gulf of Mexico; #20483 (2020)

Michael A. Abrams, Nicola F. Dahdah

Search and Discovery.com

... 607): mud mounds (volcanoes), pockmarks (seabed craters), shallow acoustic blanking, and bright amplitudes. LOUISIANA TEXAS 1000m Seep Samples...

Provenance, Stratigraphic Architecture, and Hydrogeologic Influence of Turbidites on the Mid-Ocean Ridge Flank of Northwestern Cascadia Basin, Pacific Ocean

Michael B. Underwood, Kimberley D. Hoke, Andrew T. Fisher, Earl E. Davis, Emily Giambalvo, Lars Zuhlsdorff, Glenn A. Spinelli

Journal of Sedimentary Research (SEPM)

...-resolution seismic reflection data show narrow zones of acoustic blanking (decreased reflection amplitudes) that are manifestations of higher porosity...

Analysis of Fluid and Heat Regimes in Sedimentary Basins: Techniques for Use with Large Data Bases

S. Bachu, C. M. Sauveplane, A. T. Lytviak, Brian Hitchon

AAPG Bulletin

... (i.e., differences in size an the influence of different data subsets outside the subcrop area). An automatic procedure was used for blanking...

Reconnaissance spatial analysis of the hydrogeology of closed underground coal mines

Annie J. Morris, Joseph J. Donovan, Jane E. Thies

Environmental Geosciences (DEG)

... points were required to avoid blanking of data for that node. The mapping of Figure 2 extends beyond the actual outcrop and includes...

Experimental Investigations of Combined Flow Sediment Transport

Everett Smith, Max S. Daniller-Varghese, Paul M. Myrow, David Mohrig

Journal of Sedimentary Research (SEPM)

..., excluding a blanking distance of 10 cm. The ADP data is collected in 2.5 and 3 cm vertical bins. The primary variables are the presence or absence...

Growth Faulting and Salt Diapirism: Their Relationship and Control in the Carolina Trough, Eastern North America: Rifted Margins: Field Investigations of Margin Structure and Stratigraphy

William P. Dillon, Peter Popenoe, John A. Grow, Kim D. Klitgord, B. Ann Swift, Charles K. Paull, Katharine V. Cashman

AAPG Special Volumes

... by the blanking effect presumably produced by gas hydrates formed in the sediments. This is particularly noticeable on the left and right sides of Figure 10...

Mesozoic and Cenozoic Structural Trends Under Southern Bering Sea Shelf

Michael S. Marlow, Alan K. Cooper

AAPG Bulletin

... at subbottom depth of 0.1 sec (100 m). Anomaly causes blanking ("wipe out") of returning acoustical information beneath it, including reflections from...

The Nature and Significance of Regional Unconformities in the Hydrocarbon…Bearing Neogene Sequence Offshore West Sabah

B. K. Levell

Geological Society of Malaysia (GSM)

... by blanking at the top of seismic sections. Essentially the structural style and trend was a repeat of the Horizon II deformation phase. Commonly...