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Bedrock

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Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3746779
... Our study elaborates the development and distribution characteristics of weathering crust reservoirs of crystalline bedrock and classifies the oil and gas accumulation models. The research results not only clarify the exploration direction of oil and gas reservoirs of the crystalline bedrock...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427558
... The city-state of Singapore principally sits on granite bedrock known as the Bukit Timah formation. The Bukit Timah granite outcrops in the centre of Singapore, but it is buried below quaternary sediments known as the Old Alluvium formation in the east and north. Bedrock depth and faults...
Proceedings Papers

Paper presented at the 54th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2020
Paper Number: ARMA-2020-1108
...ABSTRACT ABSTRACT Clay-bearing rocks are susceptible to degradation and slaking subjected to wetting. This process can alter the hydro-mechanical behavior of the bedrock with adverse effects on its capacity to support structural elements. This is particularly relevant for drilled caissons...
Journal Articles
SPE Res Eval & Eng 23 (01): 187–199.
Paper Number: SPE-197058-PA
Published: 17 February 2020
...Lufeng Zhang; Fujian Zhou; Maysam Pournik; Tianbo Liang; Jin Wang; Yuechun Wang Summary Dongping Field with low porosity and permeability, located in the Qaidam Basin, is the largest bedrock reservoir in China. Because of its high content of clay minerals and poor physical properties, the reservoir...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215747
... ABSTRACT In montane environments, tree roots often extend into fractured bedrock beneath thin soils. The extent to which water is dynamically stored in fractured bedrock and how much of it is available to trees is largely unknown. This uncertainty stems from the challenge of making hydrologic...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214162
... ABSTRACT The city-state of Singapore sits on the granite bedrock called Bukit Timah formation. Due to the NW-SE oriented Nee Soon fault, the Bukit Timah granite is buried deeply (100–300 m) below the Old Alluvium sediments on the east part of Singapore. We present a case study of detecting...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214321
... ABSTRACT We present a field case study to introduce an autocorrelation approach for near-surface bedrock mapping using urban ambient noise. The autocorrelogram of each long recording approximates the impulse response of a zero-offset seismic experiment. Through the case study, we demonstrate...
Proceedings Papers

Paper presented at the ISRM Rock Dynamics Summit, May 7–11, 2019
Paper Number: ISRM-RDS-2019-011
... reservoir characterization strength specimen uniaxial stress rock specimen relation stress-strain relation test result failure strength stress ratio bedrock elastic region load increase potential crack upstream oil & gas cyclic loading compression test rhyolite tuff...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998484
... ABSTRACT Many near-surface environments consist of variably weathered and fractured bedrock, where water can be dynamically stored in different pore environments. The fluxes and residence times of water strongly depend on the configuration of water in pore space and, in particular...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2988512
... ABSTRACT We present a case study of passive seismic interferometry in the city of Singapore to investigate the bedrock depth and to determine the optimal acquisition parameters. The ambient-noise field, dominated by urban traffic noise, is recorded passively for seismic interferometry. We...
Proceedings Papers

Paper presented at the 2nd International Discrete Fracture Network Engineering Conference, June 20–22, 2018
Paper Number: ARMA-DFNE-18-0346
... metamorphic bedrocks of the Fennoscandian shield, primarily composed of low-permeability Palaeoproterozoic gneisses and granites (Paulama¨ki et al., 2002). Construction and operation of the repository are fulfilled by Posiva, a nuclear waste management organisation. A key component of Posiva’s upcoming...
Proceedings Papers

Paper presented at the 2nd International Discrete Fracture Network Engineering Conference, June 20–22, 2018
Paper Number: ARMA-DFNE-18-0646
... ABSTRACT: Conducted fissure channel through thick aeolian sand is produced in the thin bedrock under the influence of mining, which causes the disaster of water inrush and sand inrush. In order to study the extension law of water flowing fractured channel in thin bedrock, a thin bedrock model...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17788172
... ABSTRACT In the near-surface velocity structure estimation, first-arrival traveltime tomography tends to produce a smooth velocity model. If the true shallow structures include a weathering layer over a high-velocity bedrock, the first-arrival traveltime tomography may fail to produce...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0082
... ARMA 17-82 Multichannel Analysis of Surface Waves: Estimating Depth to Bedrock and Acoustic Properties in Karst Terrain Bansah, K.J. Missouri University of Science and Technology, Rolla, Missouri, USA Anderson, N.L. Missouri University of Science and Technology, Rolla, Missouri, USA Copyright 2017 ARMA...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-143
... Abstract Superficial unfractured dry crystalline bedrock (e.g. granite) can constitute the diffusive hot storage for a large-scale thermoelectric energy storage by thermal doublet, an ice storage being the latent cold sink of the thermal doublet and supercritical CO 2 (sCO 2 ) the heat...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-007
... of a thin bedrock sheet several meters across (Sarpaneva 2014), while total vertical strain of one section of the pop-up was up to 100 mm, and observations following the event indicate a slab of approximately 50 m2 was detached from the underlying bedrock. Long scratch marks (‘striations’) visible...
Proceedings Papers

Paper presented at the ISRM Progressive Rock Failure Conference, June 5–9, 2017
Paper Number: ISRM-PRF-2017-023
... environments commonly suffers from a reduction in bearing capacities of affected bedrock. The overall aim of this study is to investigate the interaction of changes in bedrock properties induced by a natural decrease of permafrost and the direct effects of high alpine infrastructure. 2 Study site...
Proceedings Papers

Paper presented at the Arctic Technology Conference, October 24–26, 2016
Paper Number: OTC-27324-MS
...Abstract Abstract The Rapid Access Ice Drill (RAID) was designed and built to rapidly drill through the Antarctic ice cap, and then core the ice-rock transition zone and underlying bedrock. The system is designed to be mobile and to operate autonomously near the South Pole at elevations of 3000...
Proceedings Papers

Paper presented at the ISRM VII Brazilian Symposium on Rock Mechanics - SBMR 2016, October 19–22, 2016
Paper Number: ISRM-SBMR-2016-02
... SUMMARY: As hillslope interiors are very difficult and costly to illuminate and access, the topography of the bedrock surface is largely unknown. This paper is concerned with the prediction of spatial patterns in the depth to bedrock (DTB) using high-resolution topographic data, numerical...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13778114
... ABSTRACT The dispersion image from an MASW field record unambiguously shows the high-frequency side asymptotic trend of dispersion curve that corresponds to surface wave velocity of soil. The low-frequency side asymptotic trend for bedrock, however, is rarely measured because it would require...

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