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公开(公告)号：USRE50180E1
公开(公告)日：2024-10-22
申请号：US17686363
申请日：2022-03-03
发明人： Ahmed S. Abou-Sayed , Mehdi Loloi , Omar Abou-Sayed , Gareth Block , Ali Zidane
CPC分类号： G01V99/00 , G06F17/14 , G01V2210/646
摘要： Methods for computer modelling of a pressure transient behavior after shut-in and during fall-off of an injection event are provided to provide estimates of stimulated reservoir volume, formation permeability, stress contrast across the target and adjacent zones, fracture dimensions, fracture beyond the target zone, and pump pressure limits for maintaining fractures within the target zone, especially in fractured tight reservoirs.
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公开(公告)号：US20240069238A1
公开(公告)日：2024-02-29
申请号：US17897917
申请日：2022-08-29
IPC分类号： G01V1/50 , E21B43/26 , E21B47/07 , E21B47/103 , E21B47/107 , E21B49/00 , G01V1/46 , G01V99/00
CPC分类号： G01V1/50 , E21B43/26 , E21B47/07 , E21B47/103 , E21B47/107 , E21B49/00 , G01V1/46 , G01V99/005 , E21B2200/20 , G01V2210/646
摘要： Techniques for determining one or more hydrocarbon production zones in a subterranean reservoir include generating a 3D natural fracture model that includes a 3D discrete fracture network and a brittleness model for a subterranean formation into which a wellbore is formed; converting the 3D discrete fracture network into a 2D model to determine a continuous fracture density property; predicting a plurality of fluid-flow pathways using the continuous fracture density property modeled for each brittleness; hydraulic fracturing the wellbore to create one or more hydraulic fractures in the subterranean formation; subsequent to the hydraulic fracturing, logging the wellbore to determine one or more logged properties; identifying one or more fracture flow zones based on the one or more logged properties; and validating the predicted plurality of fluid-flow pathways based on the identified one or more fracture flow zones.
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3.发明公开公开(公告)号：US20230417940A1
公开(公告)日：2023-12-28
申请号：US18348739
申请日：2023-07-07
申请人： Momentum AI, LLC
CPC分类号： G01V1/42 , G01V1/301 , E21B41/00 , E21B43/26 , G01V1/50 , E21B47/095 , E21B49/00 , E21B47/14 , G01V2210/646 , E21B2200/22 , E21B47/06
摘要： This disclosure presents a system, method, and apparatus for preventing fracture communication between wells, the system comprising: a sensor coupled to a fracking wellhead, circulating fluid line, or standpipe of a well and configured to convert acoustic vibrations in fracking fluid in the well into an electrical signal; a memory configured to store the electrical signal; a machine-learning system configured to analyze current frequency components of the electrical signal in a window of time and to identify impending fracture communication between the well and an offset well, the machine-learning system having been trained on previous frequency components of electrical signals measured during previous instances of fracture communication between wells; and a user interface configured to return a notification of the impending fracture communication to an operator of the well.
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4.发明公开公开(公告)号：US20230366304A1
公开(公告)日：2023-11-16
申请号：US18149945
申请日：2023-01-04
发明人： Chuanjin YAO , Jiao GE , Junwei HU , Liang XU , Qi ZHANG , Lei LI , Kai ZHANG , Jianchun XU
CPC分类号： E21B43/26 , G01V99/005 , E21B2200/20 , G01V2210/646
摘要： The invention relates to the technical field of in-situ development of shale oil resources and consists of a device and technique for simulating the propagation of shale fractures under the influence of high-temperature convective heat. The apparatus is comprised of a data collecting and processing system, a high-temperature thermal fluid generator, a high-pressure pumping device, and a shale reactor. The thermal fluid generator for high temperatures consists of a fluid generator, a temperature controller, and a pressure controller. The shale, reaction kettle consists of an outer chamber, an outer chamber lid, a scaled rock cavity, and a shale sample. The outer cavity cover of the reactor is fitted with a simulated wellbore, the bottom end of the simulated wellbore penetrates the inner cavity cover and extends to the interior of the shale sample, and the top of the simulated wellbore is connected to a high-pressure constant-speed injection pump.
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5.发明公开公开(公告)号：US20230350091A1
公开(公告)日：2023-11-02
申请号：US18350960
申请日：2023-07-12
申请人： Momentum AI LLC
CPC分类号： G01V1/42 , G01V1/301 , E21B41/00 , E21B43/26 , G01V1/50 , E21B47/095 , E21B49/00 , E21B47/14 , G01V2210/646 , E21B2200/22 , E21B47/06
摘要： This disclosure presents systems, methods, and apparatus for determining cluster efficiency during hydraulic fracturing, the method comprising: measuring acoustic vibrations in fracking fluid in a fracking wellhead, circulating fluid line, or standpipe of a well; converting the acoustic vibrations into an electrical signal in a time domain; recording the electrical signal to memory; analyzing the electrical signal in the time domain for a window of time and identifying two amplitude peaks corresponding to a fracture initiation; measuring a time between the two amplitude peaks; dividing the time by two to give a result; multiplying the result by a speed of sound in the fracking fluid to give a distance between the fracture initiation and a plug at an end of a current fracking stage of the well; and returning a location of the fracture initiation to an operator based on the distance between the fracture initiation and the plug.
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6.发明公开公开(公告)号：US20230288598A1
公开(公告)日：2023-09-14
申请号：US17690484
申请日：2022-03-09
IPC分类号： G01V1/50
CPC分类号： G01V1/50 , G01V2210/646 , G01V2210/6163
摘要： A process for the determining of sweet spot intervals based on a combination of rock quality, an in-situ stress regime, natural fractures, and the identification of fluid flow paths from the interaction of hydraulic fracturing and formation attributes. The process may include determining geological components, determining mechanical earth model outputs, and determining sweet spot intervals using additional data from fracture calibration tests. Systems and computer-readable media for the determining of sweet spot intervals are also provided.
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公开(公告)号：US11726223B2
公开(公告)日：2023-08-15
申请号：US17291040
申请日：2020-12-10
申请人： Origin Rose LLC
CPC分类号： G01V1/42 , E21B41/00 , E21B43/26 , E21B47/095 , E21B49/00 , G01V1/301 , G01V1/50 , E21B47/06 , E21B2200/22 , G01V2210/646
摘要： This disclosure presents a system, method, and apparatus for preventing fracture communication between wells, the system comprising: a sensor coupled to a fracking wellhead, circulating fluid line, or standpipe of a well and configured to convert acoustic vibrations in fracking fluid in the well into an electrical signal; a memory configured to store the electrical signal; a machine-learning system configured to analyze current frequency components of the electrical signal in a window of time and to identify impending fracture communication between the well and an offset well, the machine-learning system having been trained on previous frequency components of electrical signals measured during previous instances of fracture communication between wells; and a user interface configured to return a notification of the impending fracture communication to an operator of the well.
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公开(公告)号：US11708759B2
公开(公告)日：2023-07-25
申请号：US17276054
申请日：2018-11-01
IPC分类号： E21B49/00 , E21B33/134 , G01V1/46 , E21B47/135 , E21B33/12 , E21B43/26 , E21B47/18 , G01V1/133 , G01V1/22 , G01V1/50 , G01V1/52
CPC分类号： E21B49/00 , E21B33/12 , E21B43/26 , E21B47/135 , E21B47/18 , G01V1/133 , G01V1/226 , G01V1/50 , G01V1/52 , G01V2210/121 , G01V2210/1299 , G01V2210/1429 , G01V2210/324 , G01V2210/646
摘要： A system includes a first instrumented bridge plug positionable in a downhole wellbore environment. The first instrumented bridge plug includes an acoustic source for transmitting an acoustic signal. The system also includes a second instrumented bridge plug positionable in the downhole wellbore environment. The second instrumented bridge plug includes an acoustic sensor for receiving a reflected acoustic signal originating from the acoustic signal. The reflected acoustic signal being usable to interpret wellbore formation characteristics of the downhole wellbore environment.
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9.发明公开公开(公告)号：US20230204816A1
公开(公告)日：2023-06-29
申请号：US18000331
申请日：2021-03-10
发明人： Vadim DYADECHKO , Dakshina M. VALIVETI , Ting SONG
IPC分类号： G01V99/00
CPC分类号： G01V99/005 , G01V2210/646 , G01V2210/663
摘要： A computer-implemented geological modeling method is disclosed. Hydraulic fracturing includes pumping fluids through a wellbore/casing and into a formation through perforations, creating fractures that can improve well productivity. Geological modeling may be used to model pumping of fluids into the subsurface to achieve a desired fracturing result. However, the grid used may affect the fracture propagation calculations used for geological modeling. Thus, a methodology is disclosed which reduces the grid dependence when determining various aspects of fracturing, such as pressure and/or aperture. The methodology uses a first correction factor that is based on the grid used to determine fracture propagation and a second correction factor that is not based on the grid used to determine fracture propagation (such as based on an ideal grid). In this way, the two correction factors are derived from different aspects, which when combined, may be used to reduce grid dependence when determining fracture propagation.
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公开(公告)号：US20180320485A1
公开(公告)日：2018-11-08
申请号：US15773545
申请日：2016-02-05
发明人： Jin FEI , Jeffrey Marc YARUS , Richard L. CHAMBERS , Shaolong WU
CPC分类号： E21B41/0092 , E21B43/00 , E21B43/26 , E21B49/00 , E21B49/087 , G01V1/00 , G01V99/005 , G01V2210/646 , G01V2210/663 , G06F9/455 , G06G7/48
摘要： The selection of a candidate formation realization(s) from a plurality of formation realizations may be done with a classification and regression tree (CART) analysis taking into account petrophysical and geological properties. For example, a method may include applying a CART analysis to a plurality of formation realizations using a first formation property as a predictor in the CART analysis, wherein the plurality of formation realizations are for a second formation property and are based on at least one measured formation property, thereby yielding an association between the first and second properties for each of the plurality of formation realizations; analyzing a strength of the association for each of the plurality of formation realizations; and selecting a candidate formation realization from the plurality of formation realizations based on the strength of the association. The identified candidate formation realization(s) may then be used to develop the parameters of subsequent wellbore operations.
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