Assessing the Reliable Outputs of Groundwater Sources

Beeson, S.; Misstear, Bruce; Wonderen, J. J. Van

doi:10.1111/j.1747-6593.1997.tb00132.x

Cited by 7 publications

(5 citation statements)

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“…In the case of a new well, with no operational records, an analytical approach can be used to determine the potential yield and then the reliable yield. This method consists of the calculation of short-term drawdown, derived from pumping tests (for example, step-test data), extrapolation of longer-term pumping drawdown trend (for example, 200 days) and its conversion, taking into account the drought water level [3,5].…”

Section: Introductionmentioning

confidence: 99%

Practical Approach for Defining the Sustainable Yield of Wells in Low-Permeability Fractured Rocks

Piscopo,

Sbarbati,

Dinagde

et al. 2023

Sustainability

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Groundwater sustainability is still an open question. Theoretical and practical approaches to the definition of groundwater sustainability were mainly developed on large scales, while few studies are available for its definition at a single well scale, especially in fractured aquifers. This study examines how much the sustainable yield of a well in fractured aquifers depends on the trend of drawdown over time. For this aim, pumping tests conducted in fractured rocks were considered and analytical models were applied to examine the long-term response of groundwater levels in some wells. To define the operational pumping flow of a well in these aquifers, results show that long constant flow rate pumping tests are preferred to step-drawdown tests. The late drawdown–time curve and residual drawdown segment-curves during the recovery, approximated by power, exponential or polynomial equations, represent the first step to extrapolating the long-term drawdown in the well. This prediction combined with the assessment of a drawdown limit in the well (as a function of the saturated thickness of the aquifer) are essential to plan the first operation of the well (flow rate and time of pumping). Subsequently, through the monitoring of this first operation step, the following operation phases can be updated and improved.

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Section: Introductionmentioning

confidence: 99%

Practical Approach for Defining the Sustainable Yield of Wells in Low-Permeability Fractured Rocks

Piscopo,

Sbarbati,

Dinagde

et al. 2023

Sustainability

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“…This can occur in abstraction or reinjection wells, heat exchangers or pipelines. The regular documentation of well specific capacity (e.g., on Q/s diagrams [51][52][53]), and monitoring of pressure losses in pipelines, heat exchangers and reinjection mains is essential. 9.…”

mentioning

confidence: 99%

Conceptual Modelling of Two Large-Scale Mine Water Geothermal Energy Schemes: Felling, Gateshead, UK

Banks

Steven²,

Black³

et al. 2022

IJERPH

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A conceptual model is presented of two MW-scale low enthalpy mine water geothermal heat pump schemes that are being developed in Tyneside, UK. The Abbotsford Road scheme (54.955° N 1.556° W) is operating (as of May 2021) at 20–30 L/s, abstracting groundwater (and heat) from an unmined Coal Measures Upper Aquifer System (UAS) and reinjecting to the deeper High Main Aquifer System (HMAS), associated with the High Main (E) coal workings and the overlying High Main Post sandstone. A similar scheme, 700 m away at Nest Road (54.959° N 1.564° W), abstracts at 40 L/s from the HMAS, recovers heat from the mine water and reinjects the thermally spent water to deeper workings associated with the Hutton (L), Harvey-Beaumont (N) (and possibly other) coal seams, termed the Deep Mined Aquifer System (DMAS). The three aquifer systems are vertically discontinuous and possess different hydraulic (storage, transmissivity and continuity) properties that would have been near-impossible to predict in advance of drilling. At the sites, 10 boreholes were drilled to obtain five usable production/reinjection boreholes. Development of mine water geothermal energy schemes thus carries a significant project risk, and also a potential ongoing maintenance burden related to iron hydroxide scaling. These do not preclude mine water geothermal as a useful low carbon heating and cooling technology, but the involvement of skilled hydrogeologists, hydrochemists, mining and groundwater engineers is a pre-requisite.

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“…Published approaches to quantifying individual borehole yields in fractured rocks during drought periods are scant. Individual case studies have been reported in the USA (Hammond, 2018), UK (Beeson et al, 1997), South Africa (van Tonder et al, 2001), Italy (Piscopo and Summa, 2007) and…”

mentioning

confidence: 99%

“…The dearth of published methodologies for assessment of borehole yields during droughts means that this research builds on approaches reported in the UK. In the UK, borehole yields are estimated using the approach outlined by Beeson et al (1997) and Misstear and Beeson (2000) and shown in Figure 1. In brief, observed step-drawdown test data are used to derive the shape of a yield-…”

mentioning

confidence: 99%

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Analysis of the impact of hydraulic properties and climate change on estimations of borehole yields

Ascott

Mansour

Bloomfield

et al. 2019

Journal of Hydrology

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Assessing the Reliable Outputs of Groundwater Sources

Cited by 7 publications

References 0 publications

Practical Approach for Defining the Sustainable Yield of Wells in Low-Permeability Fractured Rocks

Practical Approach for Defining the Sustainable Yield of Wells in Low-Permeability Fractured Rocks

Conceptual Modelling of Two Large-Scale Mine Water Geothermal Energy Schemes: Felling, Gateshead, UK

Analysis of the impact of hydraulic properties and climate change on estimations of borehole yields

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