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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 28 September 2022
Lithosphere (2022) 2022 (Special 12): 4107615.
... on the mobility of aquifer water are analyzed. The results show that the mobility of aquifer water is affected by the pore compressibility of formation rock and its elastic expansion. The proportion of movable water per unit drawdown pressure is 0.1%/MPa, which has little relationship with the production pressure...
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Journal Article
Published: 25 October 2021
Quarterly Journal of Engineering Geology and Hydrogeology (2022) 55 (2): qjegh2021-073.
...Weitao Yang; Jin Xu Abstract Most analytical and semi-analytical models for pumping-induced land subsidence invoke the simplifying assumptions regarding characteristics of geomaterials, as well as the pattern of drawdown response to pumping. This paper presents an analytical solution for one...
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Journal Article
Journal: Geophysics
Published: 19 May 2021
Geophysics (2021) 86 (3): WA139–WA152.
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Journal Article
Published: 01 February 2021
Italian Journal of Geosciences (2021) 140 (1): 121–140.
... 48 51 147 15 33 3.44 0.93 1.10 779 0.03 TABLE 5 Observed and simulated drawdowns in correspondence of the extraction wells. ID Observed drawdown Simulated drawdown Difference Difference   [m] [m] [m] [%] PZ02 3.55 3.68 -0.13 -3.63 PZ03 bis 1.85 1.81...
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Journal Article
Published: 19 August 2019
Quarterly Journal of Engineering Geology and Hydrogeology (2020) 53 (2): 236–251.
... to tunnelling, the drawdown at the well locations was determined. From the drawdowns and using Dupuit's equation, the depletion of well flow rates after tunnelling was estimated. To evaluate the results, observed well flow rates before and after tunnelling were compared with the predicted flow rates...
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Journal Article
Journal: Elements
Published: 01 August 2019
Elements (2019) 15 (4): 253–258.
... of this is that carbonate weathering, which results in no net change to atmospheric CO 2 levels over geological timescales ( Kasting 2019 this issue), can lead to drawdowns of CO 2 that are significant over the timescales of anthropogenic climate change. The above accounting of weathering pathways assumes that carbonic...
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Journal Article
Published: 19 June 2019
Quarterly Journal of Engineering Geology and Hydrogeology (2020) 53 (1): 125–136.
.... The results show that the scheme can keep the water table at the desired levels over a limited area. The maximum predicted nodal drawdowns after one year of pumping at 16 835 m 3 d –1 were 4.2 and 5.24 m in the two areas. Further investigations are proposed with the objective of optimizing pumping rates...
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Series: Geological Society, London, Special Publications
Published: 01 January 2019
DOI: 10.1144/SP479.4
EISBN: 9781786204226
... Abstract Pumping tests carried out in three highly tectonized Mediterranean areas, which share similar climate conditions, were used to characterize hard-rock aquifers and examine the issue of the sustainable yield of wells. On the basis of the identified drawdown trends and hydraulic...
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Series: Geological Society, London, Special Publications
Published: 01 January 2019
DOI: 10.1144/SP479-2017-52
EISBN: 9781786204226
... implementation of dewatering ( Edwards et al. 1991 ). Since the last test, the base of the quarry and drawdown levels had been doubled, increasing the impact on groundwater levels in the aquifer. The study sought to investigate the impact of this increased dewatering on the aquifer–conduit interaction...
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Journal Article
Published: 24 August 2018
Environmental & Engineering Geoscience (2018) 24 (3): 281–291.
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Journal Article
Published: 15 January 2018
Quarterly Journal of Engineering Geology and Hydrogeology (2018) 51 (1): 124–137.
... process ( Helm 1976 ; Neuman et al. 1982 ; Rivera et al. 1991 ; Taylor et al. 2001 , 2012 ; Environment Agency 2002 ; Rushton 2003 ; Leake & Galloway 2010 ). If the initial porosity is n 0 and the vertical compaction caused by the drawdown is Δ b , then, assuming lateral...
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Journal Article
Published: 01 February 2017
Petroleum Geoscience (2017) 23 (1): 134–147.
... to aquifer recharge during production-related drawdown and seawater injection for pressure support. This involves an Upper Cretaceous mixed dolomitic–sandstone reservoir series folded in an extensional salt tectonic setting (turtleback structure) forming a trap that was drilled as a discovery in the late...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 2017
AAPG Bulletin (2017) 101 (1): 1–18.
... [6289 bbl/day]) freshwater production over many years because of the wells’ relatively limited contact area with the reservoir and resulting sizeable drawdown. However, horizontal wells can be drilled from offshore platforms, for example, into a shallow, poorly consolidated, permeable sand horizon...
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Series: GSA Special Papers
Published: 01 May 2016
DOI: 10.1130/2016.2520(14)
Series: GSA Special Papers
Published: 01 May 2016
DOI: 10.1130/2016.2520(15)
..., development, and management. The system also can be expanded to include features that evaluate constraints to groundwater development, such as insufficient available drawdown, degraded groundwater quality, insufficient aquifer yields, and well-field interference. Ultimately, the aquifer information system...
Journal Article
Published: 01 March 2016
Environmental Geosciences (2016) 23 (1): 49–80.
... methane greater than 6 mg/L correlated ( p ≤ 0.05) to natural changes in regional groundwater levels. Dissolved methane concentrations in groundwater are highest when regional groundwater levels are at seasonal lows, and they vary in response to groundwater fluctuation. Water-level drawdown during water...
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Journal Article
Published: 01 August 2014
Environmental & Engineering Geoscience (2014) 20 (3): 273–285.
.... Recognition of domains with similar orientation and magnitude of transmissivity tensors is important for effective groundwater management. The Pen Argyl Member of the Martinsburg Formation is a thick sequence of claystone slate with subordinate intercalated quartzose slate and sub-graywacke. Time-drawdown...
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Journal Article
Published: 01 January 2014
Rocky Mountain Geology (2014) 49 (1): 1–16.
..., an observation consistent with the regional model of Newell et al. (2005) . Drawdown of the Park City-Tensleep Aquifer coincides with several oil and gas fields located to the north and northwest of the Thermopolis hydrothermal system, notably Hamilton Dome, King Dome, Little Sand Draw, and Gebo ( Fig. 2...
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Journal Article
Published: 01 August 2013
Environmental & Engineering Geoscience (2013) 19 (3): 253–263.
... parameters for non-leaky and leaky confined aquifers. A simple alternative approach using new computer tools can be used to estimate the aquifer parameters for both non-leaky and leaky confined aquifers given transient drawdown data from a nearby observation well. The proposed alternative methodology uses...
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Journal Article
Published: 30 July 2013
Quarterly Journal of Engineering Geology and Hydrogeology (2013) 46 (3): 293–302.
... of the Lower Aquifer. Cavitation within the granular beds of the Lower Aquifer would have occurred as a consequence of drawdown from the extensive water extraction that began at the start of the nineteenth century, resulting in the water table dropping by almost 70 m. Estimated historical pore pressure...
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