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overburden

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Journal Article
Published: 27 May 2021
Quarterly Journal of Engineering Geology and Hydrogeology (2021) 54 (4): qjegh2020-066.
... ( Fig. 1a ). In this pit, the overburden mainly consists of calcareous slate ( Fig. 1b ), which originated from Ordovician argillaceous limestone subjected to slight metamorphism. The stability of this open-pit is controlled by the foliation of the slate, which generally dips c. 55° to the SW ( Fig...
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Journal Article
Journal: The Leading Edge
Published: 01 May 2021
The Leading Edge (2021) 40 (5): 322–323.
...Eric Duveneck; Michael Kiehn Abstract Despite decades of technology development and experience, seismic imaging below complex overburdens, such as salt bodies, basalt flows, or shallow gas accumulations, remains a challenge. For successful imaging in such settings, a number of key elements need...
Journal Article
Journal: Geophysics
Published: 22 February 2021
Geophysics (2021) 86 (2): B79–B95.
... is located where faults in the basement intersect the unconformity between the basement and the overlying sandstones. The gravity and magnetic data are dominated by signatures from the basement and an overburden of glacial sediments. The gravity and magnetic data are effective at mapping the basement geology...
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Journal Article
Journal: AAPG Bulletin
Published: 15 February 2021
AAPG Bulletin (2021) 105 (2): 309–328.
... up to 20 MPa. Increasing overburden stress results in a significant decrease of both specific pore volume and excess sorption capacity. The stress sensitivity of the specific pore volume was most prominent for the total organic carbon ( TOC )–rich Kimmeridge sample (45% TOC ) and further decreased...
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Journal Article
Journal: AAPG Bulletin
Published: 15 February 2021
AAPG Bulletin (2021) 105 (2): 329–355.
... the impact of risk and uncertainty in different types of forecasting models. Based on this approach, the solid red line (right column) in Figure 4 (Opoutama-1 well) corresponds to the Sv (overburden). At the Whangai Formation, overburden reached 18.5 lb/gal at 2000 m true vertical depth (TVD...
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Journal Article
Journal: Geophysics
Published: 05 February 2021
Geophysics (2021) 86 (2): Q15–Q25.
... water, whereas the latter is problematic for targets buried under complex, highly scattering overburdens. We have developed a two-step, amplitude- and phase-preserving, inversion-based workflow that addresses these problems. We apply robust estimation of primaries by sparse inversion (R-EPSI) to solve...
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Journal Article
Journal: Geophysics
Published: 27 January 2021
Geophysics (2021) 86 (1): Q1–Q13.
... and backscattered wavefields need to be modeled with a velocity model between the acquisition and datum levels. Our numerical experiments demonstrate that the method can help to reduce nonphysical events and other artifacts that commonly arise in purely correlation-based procedures. If a high-quality overburden...
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Journal Article
Journal: AAPG Bulletin
Published: 15 December 2020
AAPG Bulletin (2020) 104 (12): 2521–2555.
... thickness of sands, and burial caused by overburden was more important, its petrophysical conditions are impoverished. In these areas, the rocks must be stimulated by hydraulic fracturing to be productive, and in recent years, they have been developed as tight gas reservoirs. The variety of entrapments...
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