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公开(公告)号：US11098565B2
公开(公告)日：2021-08-24
申请号：US16207737
申请日：2018-12-03
摘要： An embodiment in accordance with the present invention includes a method for estimating the permeability of fractured rock formations from the analysis of a slow fluid pressure wave, which is generated by pressurization of a borehole. Wave propagation in the rock is recorded with TFI™. Poroelastic theory is used to estimate the permeability from the measured wave speed. The present invention offers the opportunity of measuring the reservoir-scale permeability of fractured rock, because the method relies on imaging a wave, which propagates through a large rock volume, on the order of kilometers in size. Traditional methods yield permeability for much smaller rock volumes: well logging tools only measure permeability in the vicinity of a borehole. Pressure transient testing accesses larger rock volumes; however, these volumes are much smaller than for the proposed method, particularly in low-permeability rock formations.
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2.发明申请公开(公告)号：US20190178070A1
公开(公告)日：2019-06-13
申请号：US16207737
申请日：2018-12-03
摘要： An embodiment in accordance with the present invention includes a method for estimating the permeability of fractured rock formations from the analysis of a slow fluid pressure wave, which is generated by pressurization of a borehole. Wave propagation in the rock is recorded with TFI™. Poroelastic theory is used to estimate the permeability from the measured wave speed. The present invention offers the opportunity of measuring the reservoir-scale permeability of fractured rock, because the method relies on imaging a wave, which propagates through a large rock volume, on the order of kilometers in size. Traditional methods yield permeability for much smaller rock volumes: well logging tools only measure permeability in the vicinity of a borehole. Pressure transient testing accesses larger rock volumes; however, these volumes are much smaller than for the proposed method, particularly in low-permeability rock formations.
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公开(公告)号：US20150354859A1
公开(公告)日：2015-12-10
申请号：US14730548
申请日：2015-06-04
IPC分类号： F24J3/08
摘要： An embodiment in accordance with the present invention includes an EGS configured to allow the commercial production of electrical energy. One criteria of an EGS according to the present invention is that the temperature and volume of the fluids extracted are sufficiently high and large enough as to allow the commercial production of electrical energy. The system is able to operate for at least N years before the extracted fluid falls below the minimum temperature needed for energy production. Additionally, fractures are separated from each other by a sufficiently large volume of rock (Vcrit) relative to the fractures surface area such that the ratio of the rate of heat extraction to the rate of heat supply controlled by the thermal conductivity of the rock is such that the intervening rock is cooled at a rate that is sufficiently slow to be economic.
摘要翻译： 根据本发明的实施例包括被配置为允许商业生产电能的EGS。 根据本发明的EGS的一个标准是提取的流体的温度和体积足够高并且足够大以允许商业生产电能。 该系统能够在提取的液体低于能量产生所需的最低温度之前运行至少N年。 另外，相对于裂缝表面积，通过足够大的岩石体积（Vcrit）将裂缝彼此分离，使得热提取速率与由岩石的热导率控制的供热速率的比率是这样的 中间的岩石以足够慢的经济速度冷却。
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公开(公告)号：US12104828B2
公开(公告)日：2024-10-01
申请号：US16496830
申请日：2018-03-23
CPC分类号： F24T10/20 , E21B7/04 , E21B7/18 , E21B43/305 , E21B43/17 , E21B43/26 , F24T2010/53 , Y02E10/10
摘要： A radiator (RAD) enhanced geothermal system (EGS) may comprise a radiator vane heat exchanger (RVHE). The RVHE may be configured to be located in a plane defined by an injector well and a production well that is defined by a principal stress direction (S1) of a plurality of principal stress directions and a maximum horizontal stress component (SHmax). The RVHE may include one or more stacked laterals oriented along SHmax. Each stacked lateral, of the one or more stacked laterals, may include one or more vertical branches oriented along S1. The RVHE may be configured to extract energy from a non-hydrothermal source of energy.
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公开(公告)号：US11125471B2
公开(公告)日：2021-09-21
申请号：US14730548
申请日：2015-06-04
IPC分类号： F24T10/20 , E21B43/24 , E21B43/247
摘要： An embodiment in accordance with the present invention includes an EGS configured to allow the commercial production of electrical energy. One criteria of an EGS according to the present invention is that the temperature and volume of the fluids extracted are sufficiently high and large enough as to allow the commercial production of electrical energy. The system is able to operate for at least N years before the extracted fluid falls below the minimum temperature needed for energy production. Additionally, fractures are separated from each other by a sufficiently large volume of rock (Vcrit) relative to the fractures surface area such that the ratio of the rate of heat extraction to the rate of heat supply controlled by the thermal conductivity of the rock is such that the intervening rock is cooled at a rate that is sufficiently slow to be economic.
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公开(公告)号：US10145227B2
公开(公告)日：2018-12-04
申请号：US15224046
申请日：2016-07-29
摘要： An embodiment in accordance with the present invention includes a method for estimating the permeability of fractured rock formations from the analysis of a slow fluid pressure wave, which is generated by pressurization of a borehole. Wave propagation in the rock is recorded with TFI™. Poroelastic theory is used to estimate the permeability from the measured wave speed. The present invention offers the opportunity of measuring the reservoir-scale permeability of fractured rock, because the method relies on imaging a wave, which propagates through a large rock volume, on the order of kilometers in size. Traditional methods yield permeability for much smaller rock volumes: well logging tools only measure permeability in the vicinity of a borehole. Pressure transient testing accesses larger rock volumes; however, these volumes are much smaller than for the proposed method, particularly in low-permeability rock formations.
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7.发明申请METHOD FOR ESTIMATING PERMEABILITY OF FRACTURED ROCK FORMATIONS FROM INDUCED SLOW FLUID PRESSURE WAVES 审中-公开用于估计来自感应式慢速流体压力波的破裂岩石渗透性的方法公开(公告)号：US20170031048A1
公开(公告)日：2017-02-02
申请号：US15224046
申请日：2016-07-29
CPC分类号： E21B43/26 , E21B49/00 , G01V1/306 , G01V2210/1234 , G01V2210/6246
摘要： An embodiment in accordance with the present invention includes a method for estimating the permeability of fractured rock formations from the analysis of a slow fluid pressure wave, which is generated by pressurization of a borehole. Wave propagation in the rock is recorded with TFI™. Poroelastic theory is used to estimate the permeability from the measured wave speed. The present invention offers the opportunity of measuring the reservoir-scale permeability of fractured rock, because the method relies on imaging a wave, which propagates through a large rock volume, on the order of kilometers in size. Traditional methods yield permeability for much smaller rock volumes: well logging tools only measure permeability in the vicinity of a borehole. Pressure transient testing accesses larger rock volumes; however, these volumes are much smaller than for the proposed method, particularly in low-permeability rock formations.
摘要翻译： 根据本发明的实施例包括一种通过对钻孔的加压产生的缓慢流体压力波的分析来估计断裂岩层的渗透性的方法。 使用TFI™记录岩石中的波浪传播。 波弹性理论用于从测量的波速估计磁导率。 本发明提供了测量断层岩石的储层尺度渗透率的机会，因为该方法依赖于以大约数千公里的大小的岩石体积传播的波的成像。 传统方法对于较小的岩石体积产生渗透性：测井工具仅测量钻孔附近的渗透率。 压力瞬态测试可以获得更大的岩石体积; 然而，这些体积远小于所提出的方法，特别是在低渗透岩层中。
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