A review of conventional and alternative cementitious materials for geothermal wells

Bergen, Sophia L.; Zemberekci, Lyn; Nair, Sriramya

doi:10.1016/j.rser.2022.112347

Cited by 15 publications

(4 citation statements)

References 91 publications

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“…Presently, only one non-Ordinary Portland Cement (non-OPC) cementing solution has been developed and commercialized with the support of DOE GTO specifically for applications in CO 2 -rich geothermal wells [12]. Other cementing formulations developed with GTO support to withstand significant thermal shocks and improve heat recovery through well insulation are still undergoing industrial evaluation and optimization before field validation and deployment [13][14][15]. Many advanced cementitious materials targeting geothermal environments do not reach field trials in part because of the limited geothermal market compared with oil and gas production.…”

Section: Cementmentioning

confidence: 99%

A Technology Roadmap for Advanced Geothermal Well Construction

Price,

Polsky,

Pyatina

et al. 2023

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Recent analysis has shown that by 2050, geothermal energy will be able to supply up to 90 GW of power to the US electrical grid. Reducing the life cycle cost of geothermal wells is critical to achieving this level of adoption. Although time-related costs of drilling remain an important issue, the costs associated with casing and cementing of geothermal wells also warrant attention. This report provides a road map of RD&D activities needed to reduce the life cycle cost of casing and cementing while improving life-ofwell performance. The purpose of the road map is to develop priorities for RD&D in the areas of (1) highperformance and cost-effective materials for target geothermal well conditions, (2) well construction methods and techniques to reduce construction costs, and (3) methods and techniques to decrease longterm operating costs. The road map sets targets for the next 10 years and purposely excludes RD&D efforts to improve rock reduction. The road map was developed by a joint working group of experts from Oak Ridge National Laboratory, Brookhaven National Laboratory, and Sandia National Laboratories and 35 experts from industry and academia. Input from a series of information-gathering sessions with experts for industry and academia was used to inform and guide the development of the road map.

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Section: Cementmentioning

confidence: 99%

A Technology Roadmap for Advanced Geothermal Well Construction

Price,

Polsky,

Pyatina

et al. 2023

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“…Geothermal wells present additional challenges for cements to survive, including strong acids, high dissolved solids concentrations, and thermal shock conditions [ 9 ]. New materials have been developed and tested for geothermal wells with varied success [ 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Corrosion-Resistant Plug Materials for Geothermal Well Fluid Control

Lowry¹,

Louden²,

Jerman³

et al. 2022

Materials

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Conventional cements and plugs are challenged by corrosion in CO2-rich and extreme geothermal environments, due to the hostile chemistry and high temperatures. Thermite-based sealing and well intervention technologies are being applied in the oil and gas industry, combining the energy delivery capability of thermite materials with the sealing characteristics of low melt temperature alloys. The thermite reaction products (ceramics) and the sealing alloys used in these plugs both have very attractive corrosion properties, and their operating envelopes extend into geothermal conditions. Thermite plugs and platforms, without supplemental sealing materials, have been considered for nuclear waste isolation, carbon sequestration, and geothermal applications due to the geochemical stability of the ceramic product and its very high service temperature. This study addresses corrosion resistance of the thermite reaction products. A range of engineered thermite systems which yield thermite reaction products including pure aluminum oxide, feldspar, or aluminosilicate solid solutions (in addition to the iron produced in thermite reactions) was developed. These materials were evaluated for their strong acid resistance (pH 1), carbonate resistance (sodium carbonate) and thermal shock resistance (600 °C heating → cold water quenching repeated three times). Performance of different materials was evaluated based on the changes in mechanical properties, water-fillable porosity, phase changes under stress conditions. The aluminosilicate product exhibited very good corrosion resistance, both from material loss and strength perspectives, while the other products performed with varying degrees of stability. This paper presents the results of the thermite corrosion studies and describes the novel tools being deployed, and under development, to satisfy challenging barrier and intervention applications.

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“…Once pollution exists or disrupts the pre-existing equilibrium, it not only becomes challenging to detect but also requires an extended period for remediation. The selection of highly durable and mechanically strong backfill materials can also mitigate the adverse impacts on the underground environment to a certain extent [32].…”

mentioning

confidence: 99%

Research on Sustainable Shallow Geothermal Potential in Jinan Start-Up Area, China

Hao,

Ji,

et al. 2023

Energies

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Shallow geothermal energy (SGE), as an important renewable energy, playing an important role in reducing carbon emissions. In order to efficiently and sustainably utilize SGE, field investigation and storage estimation are needed. In this study, the hydrogeological data obtained from the field exploration of Jinan Start-up Area were collected and compiled. By analyzing the geotechnical property data and thermal response test results, the information of geotechnical and thermal properties and underground temperature distribution characteristics were collected. Subsequently, the analytic hierarchy process (AHP) combined with the comprehensive index method (CIM) were used to classify the shallow geothermal potential of Jinan Start-up Area. The entire area was divided into a high-potential area, medium-potential area and general area, of which 92.2% was high-potential area. The preliminary results, combined with the parameters obtained from the testing, indicate that the SGE storage at a borehole depth of 120 m is estimated to be approximately 2.68 × 1012 kJ·K−1, while the heat exchanger power of the buried pipe at the same depth is calculated to be around 1.73 × 105 kW. Finally, suggestions are given for sustainable development and utilization of SGE in this area.

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A review of conventional and alternative cementitious materials for geothermal wells

Cited by 15 publications

References 91 publications

A Technology Roadmap for Advanced Geothermal Well Construction

A Technology Roadmap for Advanced Geothermal Well Construction

Corrosion-Resistant Plug Materials for Geothermal Well Fluid Control

Research on Sustainable Shallow Geothermal Potential in Jinan Start-Up Area, China

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