Study of geothermal power generation from a very deep oil well with a wellbore heat exchanger

Alimonti, Claudio; Soldo, Elena

doi:10.1016/j.renene.2015.08.031

Cited by 96 publications

(68 citation statements)

References 11 publications

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“…In Table 1 are reported the sizing of the tubes and the final casing size (Alimonti and Soldo 2016). The annular space between the two pipes is filled by air and it has a thickness of 32.5 mm.…”

Section: Resultsmentioning

confidence: 99%

“…In a previous study (Alimonti and Soldo 2016) has been proposed the application of the WBHX in an oil field: Villafortuna Trecate field, a medium enthalpy geothermal resource. The target was the use of a numerical model to study the feasibility of the WBHX and to optimize the system.…”

Section: Discussionmentioning

confidence: 99%

“…In a previous study (Alimonti and Soldo 2016) the model was developed using an analytical solution of the Fourier equation and it was implemented in a C computation code.…”

Section: Heat Transfer Modelmentioning

confidence: 99%

“…The selection of the working fluid of the ORC power plant has been made following the indication from Chen et al (2010). The R-C318 has been selected as working fluid considering the thermal efficiency and the PH/E ratio (Alimonti and Soldo 2016).…”

Section: Energy Conversion Performance: Comparison Between the Two Symentioning

confidence: 99%

“…In a previous study (Alimonti and Soldo 2016) has been proposed the application of the WBHX in an oil field. The selected case study is the Villafortuna Trecate field, a large hydrocarbon field still active but strongly depleted.…”

mentioning

confidence: 99%

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Coupling of energy conversion systems and wellbore heat exchanger in a depleted oil well

et al. 2016

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…In a previous study (Alimonti and Soldo 2016) the model was developed using an analytical solution of the Fourier equation and it was implemented in a C computation code.…”

Section: Heat Transfer Modelmentioning

confidence: 99%

Section: Energy Conversion Performance: Comparison Between the Two Symentioning

confidence: 99%

mentioning

confidence: 99%

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Coupling of energy conversion systems and wellbore heat exchanger in a depleted oil well

et al. 2016

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Geothermal energy extraction using abandoned oil and gas wells:Techno‐economicand policy review

Kurnia

Shatri

Putra

et al. 2021

Intl J of Energy Research

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Summary Retrofitting depleted oil wells to extract geothermal energy is considered as one of the promising proposals to extend the overall economic life of oil and gas well. For successful implementation of this initiative, a comprehensive overview covering all aspects of geothermal energy extraction from abandoned oil well should be taken into account including technical, economic considerations as well as regulations and policies of respective local governments. Unfortunately, most reported studies have been focused only on one or two aspects, primarily on technical and economic aspects. Little or no study has focused on the policy sector. Moreover, these findings have been scattered, creating difficulties to extract essential information and dragging further development of the technology. This paper is therefore prepared with the objective to provide a comprehensive overview on the geothermal energy extraction from abandoned oil well, technical challenges in its implementation, economical consideration on the conversion of the well and government policy on energy especially geothermal energy and regulation on the utilization of abandoned oil well. To achieve this objective, extensive literature reviews are conducted with more attention given to recent studies on the field. Challenges on the development of this technology are discussed from technical, economic, and policy perspectives. Based on the identified challenges, required research and development as well as necessary policies for further advancement of this technology are outlined and discussed. By providing this comprehensive information, this review paper may serve as a good foundation and guidelines on the conversion of abandoned oil wells into geothermal energy wells.

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Exploration of a Practical Approach for Assessing the Measurement Capability of Software Organizations

Salmanoğlu¹,

Demirörs

Coşkunçay

et al. 2017

Communications in Computer and Information Science

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One of the factors that determine agricultural crops' yield is the quality of water used during irrigation. In this study, we assessed the usability of spent geothermal water for agricultural irrigation after membrane treatment. Preliminary membrane tests were conducted on a laboratory-scale set up followed by mini-pilot scale tests in a geothermal heating center. In part I, three commercially available membranes (XLE BWRO, NF90, and Osmonics CK-NF) were tested using a cross-flow flat-sheet membrane testing unit (Sepa CF II, GE-Osmonics) under constant applied pressure of 20 bar. In part II, different spiral wound membranes (TR-NE90-NF, TR-BE-BW, and BW30) other than the ones used in laboratory tests were employed for the mini-pilot scale studies in a continuous mode. Water recovery and applied pressure were maintained constant at 60% and 12 bar, respectively. Performances of the membranes were assessed in terms of the permeate flux, boron and arsenic removals. In laboratory tests, the permeate fluxes were measured as 94.3, 87.9, and 64.3 L m − 2 h − 1 for XLE BWRO, CK-NF and NF90 membranes, respectively. The arsenic removals were found as 99.0%, 87.5% and 83.6% while the boron removals were 56.8%, 54.2%, and 26.1% for XLE BWRO, NF90 and CK-NF membranes, respectively. In field tests, permeate fluxes were 49.9, 26.8 and 24.0 L m − 2 h − 1 for TR-NE90-NF, BW30-RO and TR-BE-BW membranes, respectively. Boron removals were calculated as 49.9%, 44.1% and 40.7% for TR-BE-BW, TR-NE90-NF and BW30-RO membranes, respectively. Removal efficiencies of arsenic in mini-pilot scale membrane tests were all over 90%. Quality of the permeate water produced was suitable for irrigation in terms of the electrical conductivity (EC) and the total dissolved solids (TDS) for all tested membranes with respect to guidelines set by the Turkish Ministry of Environment and Urbanisation (TMEU). However, XLE BWRO, CK-NF and NF90 membranes failed to meet the required limits for irrigation in terms of boron and arsenic concentrations in the product water. The permeate streams of TR-BE-BW, TR-NE90-NF and BW30-RO membranes complied with the irrigation water standards in terms of EC, TDS and arsenic concentration while boron concentration remained above the allowable limit.

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Study of geothermal power generation from a very deep oil well with a wellbore heat exchanger

Cited by 96 publications

References 11 publications

Coupling of energy conversion systems and wellbore heat exchanger in a depleted oil well

Coupling of energy conversion systems and wellbore heat exchanger in a depleted oil well

Geothermal energy extraction using abandoned oil and gas wells:Techno‐economicand policy review

Exploration of a Practical Approach for Assessing the Measurement Capability of Software Organizations

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