An evaluation of interferences in heat production from low enthalpy geothermal doublets systems

Willems, C.J.L.; Nick, Hamidreza M.; Weltje, Gert Jan; Bruhn, David

doi:10.1016/j.energy.2017.06.129

Cited by 74 publications

(31 citation statements)

References 16 publications

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“…Assessment of the temperature decline in geothermal well doublets is usually based on field slug tracer tests (Shook ) and/or numerical simulations involving coupled flow and heat transport modeling (Willems et al ). The DD approach would be a useful tool in planning and assisting tracer test analysis to forecast the rate of cooling at pumping wells.…”

Section: Resultsmentioning

confidence: 99%

A Dual Delineation Approach to Untangle Interferences in Well Doublets Systems

Sbai¹

2020

Groundwater

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Traditional numerical methods for the delineation of wellhead protection areas span deterministic and probabilistic approaches. They provide time‐related capture zones. However, none of the existing approaches identifies the groundwater contribution areas related to each source or sink. In this work, the worthiness of the so‐called double delineation approach was extended. This task was achieved by simple postprocessing of its dual outputs leading to a highly efficient screening tool. In the particular context of geothermal resources management through the well doublets of the Dogger aquifer in the Paris Basin (France), the approach was extended to forecast the compositional heat breakthrough at production wells. Hence, cold‐water breakthrough and temperature decline in production wells are timely assessed in low‐enthalpy geothermal reservoirs. The method quantifies how groundwater volumes are moving through space and time between any couple of source and sink. It provides unprecedented tools advancing the enhanced understanding of water resources systems functioning. It is highly recommended to implement the presented concepts in the current and future generations of community groundwater models.

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Section: Resultsmentioning

confidence: 99%

A Dual Delineation Approach to Untangle Interferences in Well Doublets Systems

Sbai¹

2020

Groundwater

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“…Following on from hydrocarbon exploration experience, the Vlieland Sandstone Formation of the Rijnland Group was the primary target initially, with the deeper Schieland Group being a secondary target. However, geothermal wells drilled in synclines, contrary to anticlinal conventional oil and gas wells, found that the Schieland Group sandstones in the lows are thicker and have higher permeabilities than the pre-drill expectation (Willems et al 2017;Vondrak et al 2018). Presently, the Schieland Group sandstones, especially the Delft Sandstone Member, are the primary target for geothermal exploration with better reservoir characteristics and hotter than the overlying Vlieland Sandstone Formation sandstones.…”

Section: Future Trends and Developmentsmentioning

confidence: 99%

New insights on subsurface energy resources in the Southern North Sea Basin area

Doornenbal

Kombrink

Bouroullec

et al. 2019

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The Southern North Sea Basin area, stretching from the UK to the Netherlands, has a rich hydrocarbon exploration and production history. The past, present and expected future hydrocarbon and geothermal exploration trends in this area are discussed for eight key lithostratigraphic intervals, ranging from the Lower Carboniferous to Cenozoic. In the period between 2007 and 2017, a total of 95 new hydrocarbon fields were discovered, particularly in Upper Carboniferous, Rotliegend and Triassic reservoirs. Nineteen geothermal systems were discovered in the Netherlands onshore, mainly targeting aquifers in the Rotliegend and Upper Jurassic/Lower Cretaceous formations. Although the Southern North Sea Basin area is mature in terms of hydrocarbon exploration, it is shown that with existing and new geological insights, additional energy resources are still being proven in new plays such as the basal Upper Rotliegend (Ruby discovery) for natural gas and a new Chalk play for oil. It is predicted that hydrocarbon exploration in the Southern North Sea Basin area will probably experience a slight growth in the coming decade before slowing down, as the energy transition further matures. Geothermal exploration is expected to continue growing in the Netherlands onshore as well as gain more momentum in the UK. Since the publication of the Petroleum Geological Atlas of the Southern Permian Basin (SPB) (Doornenbal & Stevenson 2010), which gave a comprehensive overview based on more than 150 years of petroleum exploration and research from onshore UK to Poland, the basin has continued to see successful exploration wells drilled together with a diversification of drilling targets. This paper summarizes the activities over the period 2007-17 to give an update on new exploration insights. The focus of this paper is more limited than the entire SPB Atlas area and concentrates on its western part between latitudes

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“…Firstly, the exploitable resources occur at depths of more than 2 km. Secondly, to recover heat from such systems, unlike hot sedimentary aquifers with sufficiently large permeabilities [4,14,57], operations are needed to develop permeable and connected fractures Masoud Babaei masoud.babaei@manchester.ac.uk first [38]. Finally, mining heat from such rocks is by introducing cold water into the hot rocks to be heated, and then producing hot water or steam in doublet well configurations.…”

Section: Introductionmentioning

confidence: 99%

Upscaling of the single-phase flow and heat transport in fractured geothermal reservoirs using nonlocal multicontinuum method

et al. 2019

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In this work, we consider a single-phase flow and heat transfer problem in fractured geothermal reservoirs. Mixed dimensional problems are considered, where the temperature and pressure equations are solved for porous matrix and fracture networks with transfer term between them. For the fine-grid approximation, a finite volume method with embedded fracture model is employed. To reduce size of the fine-grid system, an upscaled coarse-grid model is constructed using the nonlocal multicontinuum (NLMC) method. We present numerical results for two-dimensional problems with complex fracture distributions and investigate an accuracy of the proposed method. The simulations using upscaled model provide very accurate solutions with significant reduction in the dimension of problem.Publisher's note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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An evaluation of interferences in heat production from low enthalpy geothermal doublets systems

Cited by 74 publications

References 16 publications

A Dual Delineation Approach to Untangle Interferences in Well Doublets Systems

A Dual Delineation Approach to Untangle Interferences in Well Doublets Systems

New insights on subsurface energy resources in the Southern North Sea Basin area

Upscaling of the single-phase flow and heat transport in fractured geothermal reservoirs using nonlocal multicontinuum method

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