Results 71 to 80 of about 9,341 (261)
, 1980 Hydraulic fracturing has been used to create and subsequently to enlarge the first hot dry rock heat-extraction loop at Fenton Hill, New Mexico. Encouraging results prompted the DOE to expand this project into a program of national scope. The elements of that Program and their present status are discussed.
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Deep Underground Science and Engineering, EarlyView.Our study reveals that caving‐enhanced geothermal systems (C‐EGS) with adequately fractured reservoirs achieve optimal heat extraction by minimizing preferential flow paths, while conventional fracturing (F‐EGS) and pipe‐based (P‐EGS) systems suffer accelerated thermal drawdown.
Fangchao Kang +4 more
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Developmental Dynamics, EarlyView.Abstract Background Developmental control of jaw size is crucial to prevent birth defects and facilitate evolutionary adaptation. We have shown that jaw size is established by neural crest mesenchyme (NCM), which are progenitor cells that migrate into the mandibular primordia and produce the jaws.
Zuzana Vavrušová +5 more
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EcoEnergy, EarlyView.A triflate‐functionalized Ni–Ce/MOF–OTf superacid enables low‐temperature (∼140°C) in situ upgrading of ultra‐deep heavy oil. It reduces viscosity by 92.11% in 12 h, maintains activity over cycles, and delivers 90.25% recovery with a lower carbon footprint by selective bond cleavage. ABSTRACT Ultra‐deep heavy oil is an important unconventional resource,
Li Wang +5 more
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Petroleum Exploration and DevelopmentThis paper systematically investigates the numerical simulation model construction and methods for hot dry rock geothermal resource development. It highlights the influence law and characterization differences of multi-physics field coupling mechanism ...
Gensheng LI +6 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Spray‐flame synthesis enables highly flexible and scalable production of multinary and high‐entropy oxide nanoparticles due to high synthesis temperatures with subsequent quenching. Temperature‐dependent in situ diffraction of as‐synthesized materials clearly reveals entropy stabilization in rock salt lattices, while spinels—featuring tetrahedral and ...
Mohammed‐Ali Sheikh +7 more
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Petroleum Exploration and DevelopmentBased on the independently developed true triaxial multi-physical field large-scale physical simulation system of in-situ injection and production, we conducted physical simulation of long-term multi-well injection and production in the hot dry rocks of ...
Peng ZHAO +6 more
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The hot dry rock geothermal energy program [PDF]
, 1987 A description of a geothermal energy project in Fenton Hill, New Mexico, known as the Hot Dry Rock Program was presented. As opposed to common geothermal projects where existing hot ground water is trapped, this project utilized deep holes in dry rock. Two vertical holes were drilled and then connected by hydraulic fracturing. Water was pumped into the
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Hot dry rock geothermal resource ownership and the law [PDF]
, 1979 A basis is provided for changing the design of some legislative definitions of geothermal energy to allow the emergence and implementation of a hot dry rock geothermal energy-producing technology. A study of existing federal and state geothermal statutes has been conducted to determine the extent to which legislation acts to constrain the ...
McNamara, J.J., Kaufman, E.L.
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Energy Science &Engineering, EarlyView.The low‐field nuclear magnetic resonance (NMR) measurements are applied to investigate the seepage characteristics of the single rough joint. The purpose of this paper is to investigate the seepage characteristics of granite specimens with single‐joint channel under the different roughness, confining pressures and seepage pressures.
Hao Cheng, Xiujie Zhong
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