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1. 发明申请

WO2021242673A1 USING RADIO WAVES TO FRACTURE ROCKS IN A HYDROCARBON RESERVOIR 审中-公开
公开(公告)号：WO2021242673A1
公开(公告)日：2021-12-02
申请号：PCT/US2021/033841
申请日：2021-05-24
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： CHEN, Jinhong , GEORGI, Daniel T. , ALTHAUS, Stacey M.
IPC分类号： E21B43/26
摘要： The present disclosure describes methods and systems for fracturing geological formations in a hydrocarbon reservoir. One method includes forming a borehole in a hydrocarbon reservoir from a surface of the hydrocarbon reservoir extending downward into the hydrocarbon reservoir; transmitting an electromagnetic (EM) wave through the borehole; directing at least a portion of the EM wave to rocks at a location below the surface in the hydrocarbon reservoir; and fracturing the rocks at the location below the surface in the hydrocarbon reservoir by irradiating the rocks around the borehole using at least the portion of the EM wave, where the irradiating is performed by irradiating a first portion of the rocks by using the EM wave for a first duration and after irradiating the first portion of the rocks for the first duration, refraining from irradiating the first portion of the rocks for a second duration.

2. 发明申请

WO2018140319A1 HIGH SPATIAL RESOLUTION NUCLEAR MAGNETIC RESONANCE OF LONG WHOLE CORE ROCK SAMPLES USING SPATIAL SENSITIVITY PROFILE OF A SHORT RF COIL 审中-公开
公开(公告)号：WO2018140319A1
公开(公告)日：2018-08-02
申请号：PCT/US2018/014481
申请日：2018-01-19
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： CHEN, Jin-Hong , ALTHAUS, Stacey M. , DELSHAD, Mohammad , ZHAO, Yang
IPC分类号： G01N24/08 , G01R33/30
摘要： Certain techniques for Nuclear Magnetic Resonance (NMR) whole core logging are described. NMR tests are performed on a standard sample, e.g. a phantom, using a NMR radio frequency (rf) coil having a length. A response map of the NMR rf coil is determined. The response map relates multiple relative NMR rf coil positions to multiple relative signal intensities. NMR signals are then acquired using the NMR rf coil from a whole core rock sample containing fluid, wherein the rock sample is longer than the NMR rf coil and is re¬ positioned for each acquisition so that NMR signal is acquired at a different position of the long rock sample. Fluid content in the sample is determined by mathematical deconvolution from the NMR signals acquired from the rock sample and from the response map for the NMR rf coil to obtain high resolution profile of the fluid content in the rock sample without the use of magnetic field gradient. The same method can be used to obtain high spatial resolution NMR log measurement in the reservoir.

3. 发明申请

WO2020072273A1 DETERMINING GEOLOGIC FORMATION PERMEABILITY 审中-公开
公开(公告)号：WO2020072273A1
公开(公告)日：2020-04-09
申请号：PCT/US2019/053198
申请日：2019-09-26
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： CHEN, Jin-Hong , ALTHAUS, Stacey M. , LIU, Hui-Hai
IPC分类号： G01V3/32
摘要： Techniques for determining geologic formation permeability include determining particular permeability values from an NMR log permeability data and particular permeability values of the core permeability measurements; determining a selected NMR permeability transform that includes inputs including the determined particular permeability values; minimizing a cost function to optimize the selected NMR permeability transform; calculating new permeability values for the wellbore between the terranean surface and a true vertical depth of the wellbore with the optimized NMR permeability transform; comparing the calculated new permeability values at particular depths between the terranean surface and the true vertical depth that match depths of the core permeability measurements; based on the comparison meeting a particular threshold, generating a user interface that renders one or more graphical representations of the optimized NMR permeability transform and the calculated new permeability values; and transmitting data that represents the one or more graphical representations.

4. 发明申请

WO2018053103A1 METHOD FOR MEASUREMENT OF HYDROCARBON CONTENT OF TIGHT GAS RESERVOIRS 审中-公开
标题翻译：测定致密气储层含油量的方法
公开(公告)号：WO2018053103A1
公开(公告)日：2018-03-22
申请号：PCT/US2017/051527
申请日：2017-09-14
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： CHEN, Jinhong , ALTHAUS, Stacey M. , GEORGI, Daniel T. , LIU, Hui-hai
IPC分类号： G01V3/32 , G01N24/08 , G01R33/38
摘要： Measures of the hydrocarbon content of a shale gas formation or reservoir are obtained. Nuclear magnetic resonance (NMR) well logs are obtained from a well in the reservoir measures of the total fluid, including both water and hydrocarbon, in the shale of the reservoir. NMR measurement at the surface of shale subsurface samples obtained in the form of drill cuttings or core samples from the same well provide measures of total water content of the shale. At the surface, pressure on the subsurface sample becomes that of atmospheric pressure, and hydrocarbon gas contained in the shale cuttings bleeds off. The remaining fluid within the shale cuttings is then only water, which can be measured using NMR techniques. Compensation for the effect of drilling fluids (drilling mud) on the NMR measures from the fluid cuttings is also performed. The hydrocarbon gas content of the formation shale can be determined from the difference between formation NMR well log readings and NMR measurements from subsurface sample.
摘要翻译：获得页岩气地层或储层的烃含量的测量值。核磁共振（NMR）测井曲线是从油藏中测量包括水和碳氢化合物在内的总流体储层中的一口井获得的。在钻井岩屑或来自同一井的岩心样品形式获得的页岩地下样品表面的NMR测量提供了页岩总含水量的测量。在地表上，地下样品上的压力变成大气压力，并且包含在页岩屑中的烃气体渗出。然后页岩岩屑中的剩余流体仅为水，可以使用NMR技术测量。钻井液（钻井泥浆）对液体岩屑的NMR测量的影响的补偿也被执行。形成页岩的烃气体含量可以根据地层NMR井测井读数与地下样品的NMR测量之间的差异来确定。

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