Prediction of Permeability Distribution of Deep Buried Sandstones Using Machine Learning

    公开(公告)号:US20240151868A1

    公开(公告)日:2024-05-09

    申请号:US17983068

    申请日:2022-11-08

    IPC分类号: G01V1/50 G06N20/00

    摘要: Example computer-implemented methods, media, and systems for predicting permeability distribution of deep buried sandstones of a subsurface sandstone reservoir using machine learning. One example method includes receiving multiple wireline well log responses of multiple cored well sections of a subsurface sandstone reservoir. A respective authigenic clay type associated with each of the multiple cored well sections is received. The multiple wireline well log responses are labeled based on the respective authigenic clay type associated with each of the multiple cored well sections. A machine learning (ML) model for predicting a permeability distribution of multiple uncored well sections of the subsurface sandstone reservoir is trained based on the multiple labeled wireline well log responses of the multiple cored well sections. Multiple wireline well log responses of the multiple uncored well sections are received. The permeability distribution of the multiple uncored well sections is predicted using the trained ML model.

    FRACTURE TREATMENT ANALYSIS BASED ON MULTIPLE-WELLBORE SEISMIC DETECTION
    3.
    发明申请
    FRACTURE TREATMENT ANALYSIS BASED ON MULTIPLE-WELLBORE SEISMIC DETECTION 审中-公开
    基于多孔地震检测的碎裂处理分析

    公开(公告)号:US20170074998A1

    公开(公告)日:2017-03-16

    申请号:US15309125

    申请日:2014-06-04

    IPC分类号: G01V1/28 G01V1/30 G01V1/42

    摘要: Some aspects of what is described here relate to seismic profiling techniques. A seismic excitation is generated in a first directional section of a first wellbore in a subterranean region. Seismic responses associated with the seismic excitation are detected in directional sections of a plurality of other wellbores in the subterranean region. A fracture treatment of the subterranean region is analyzed based on the seismic responses. In some instances, a multi-dimensional seismic velocity model of the subterranean region is generated based on the seismic responses.

    摘要翻译: 这里描述的一些方面涉及地震剖面技术。 在地下区域中的第一井眼的第一方向区段中产生地震激励。 与地震激发相关的地震响应在地下区域的多个其他井筒的定向截面中被检测。 基于地震反应分析地下区域的断裂处理。 在一些情况下,基于地震响应产生地下区域的多维地震速度模型。

    Method and apparatus for locating gas hydrate
    4.
    发明授权
    Method and apparatus for locating gas hydrate 有权
    用于定位天然气水合物的方法和装置

    公开(公告)号:US09519072B2

    公开(公告)日:2016-12-13

    申请号:US11432269

    申请日:2006-05-11

    摘要: An exploration paradigm for detecting and/or characterizing gas hydrate deposits using either electromagnetic or seismic surveys, that accounts for the possibility that gas hydrate may accumulate in vertical or subvertical dikes. Geologic factors, such as the presence of the gas hydrate stability zone, indications that a prolific source of gas exists (or existed) below the gas hydrate stability zone and indications that a high flux of gas could be transported into the gas hydrate stability zone, may be considered as part of an exploration strategy. Data may be collected using seismic techniques, such as a walk-away vertical seismic profile techniques, or electromagnetic surveys that are adapted to detecting the presence of vertical or subvertical dikes. In one example, data processing and acquisition techniques may be adapted to detect hydrate dikes, and do not assume a horizontally isotropic earth model.

    摘要翻译: 用于使用电磁或地震勘测来检测和/或表征天然气水合物沉积物的探索范例,这说明了天然气水合物可能在垂直或颠簸堤坝中积聚的可能性。 地质因素,如天然气水合物稳定区的存在,表明天然气水合物稳定区以下气体存在(或存在)多产的气源,可以将高通量的气体输送到气体水合物稳定区, 可能被认为是勘探战略的一部分。 可以使用地震技术(例如步行垂直地震剖面技术)或适用于检测垂直或颠簸堤坝存在的电磁勘探来收集数据。 在一个示例中,数据处理和采集技术可以适于检测水合物堤坝,并且不假定水平各向同性的地球模型。

    REVERSE TIME MIGRATION BASED ON GEOMETRIC MEAN FOR IMAGING SEISMIC SOURCES
    5.
    发明申请
    REVERSE TIME MIGRATION BASED ON GEOMETRIC MEAN FOR IMAGING SEISMIC SOURCES 审中-公开
    基于几何意义的反映时间偏移来形成地震源

    公开(公告)号:US20160306058A1

    公开(公告)日:2016-10-20

    申请号:US15130705

    申请日:2016-04-15

    IPC分类号: G01V1/28

    摘要: For each receiver of an array of three or more receivers monitoring a seismic event, reverse time propagation of a recorded wavefield is performed for the respective receiver to derive an extrapolated wavefield for the respective receiver. An imaging condition is applied as a crosscorrelation of the extrapolated wavefields for the three or more receivers to derive an image of the seismic event. A source of the seismic event is identified based on the image.

    摘要翻译: 对于监测地震事件的三个​​或更多个接收器的阵列的每个接收机,对于相应的接收机执行记录的波场的反向时间传播以导出相应接收机的外推波场。 将成像条件作为三个或更多个接收器的外插波场的互相关应用,以导出地震事件的图像。 基于图像识别地震事件的来源。

    Earthquake warning system
    6.
    发明授权
    Earthquake warning system 有权
    地震预警系统

    公开(公告)号:US09372272B2

    公开(公告)日:2016-06-21

    申请号:US13993394

    申请日:2011-12-19

    IPC分类号: G08B21/00 G01V1/00 G08B21/10

    摘要: A method or system for detecting a seismic event includes detecting a primary wave of a seismic event using at least one sensor at a measurement location; using at least one parameter of the detected primary wave to determine an estimated peak ground intensity at the measurement location without determining the magnitude of the seismic event; determining an epicenter of the seismic event; and estimating the intensity of the seismic event at a specified location using the determined estimated peak ground intensity and the distance of the specified location from the epicenter. The epicenter can be determined using sensors at a single location. A noise detection system can filter out detected signals that correspond to local vibrations rather than seismic events.

    摘要翻译: 一种用于检测地震事件的方法或系统包括:在测量位置使用至少一个传感器检测地震事件的主波; 使用所检测到的主波的至少一个参数来确定测量位置处的估计的峰值地面强度,而不确定地震事件的大小; 确定地震事件的震中; 以及使用所确定的估计的峰值地面强度和指定位置距离震中的距离来估计在指定位置处的地震事件的强度。 可以使用单个位置的传感器确定震中。 噪声检测系统可以滤除与局部振动相对应的检测信号,而不是地震事件。

    DEVICE AND METHOD FOR VELOCITY FUNCTION EXTRACTION FROM THE PHASE OF AMBIENT NOISE
    7.
    发明申请
    DEVICE AND METHOD FOR VELOCITY FUNCTION EXTRACTION FROM THE PHASE OF AMBIENT NOISE 审中-公开
    从环境噪声阶段提取速度函数的装置和方法

    公开(公告)号:US20160070013A1

    公开(公告)日:2016-03-10

    申请号:US14889063

    申请日:2014-06-02

    申请人: CGG SERVICES SA

    IPC分类号: G01V1/30 G01V1/32

    摘要: Methods and systems for deriving S-wave velocity information from the low-frequency content of ambient noise are described. The ambient noise can be collected on a dedicated record or on a production record associated with the receivers of a three-dimensional seismic survey. The methods and systems use one of a plurality of analysis models selected based on quality factors of the ambient noise data. The methods and systems analyze the data at a plurality of single frequencies then transform the velocity versus frequency data into velocity versus depth data.

    摘要翻译: 描述了从环境噪声的低频内容导出S波速度信息的方法和系统。 环境噪声可以在与三维地震勘测的接收器相关联的专用记录或生产记录上收集。 方法和系统使用基于环境噪声数据的质量因素选择的多个分析模型之一。 方法和系统以多个单个频率分析数据,然后将速度与频率数据转换为速度与深度数据。

    Method for quantitatively assessing connectivity for well pairs at varying frequencies
    8.
    发明授权
    Method for quantitatively assessing connectivity for well pairs at varying frequencies 有权
    用于定量评估不同频率下的井对的连通性的方法

    公开(公告)号:US09169726B2

    公开(公告)日:2015-10-27

    申请号:US13392440

    申请日:2010-07-01

    IPC分类号: E21B47/00 E21B43/00 E21B49/00

    摘要: Method for quantitatively assessing connectivity for well pairs at varying frequencies. A time series of measurements (12) is chosen for each of the two wells such that the particular measurements will be sensitive to subsurface connectivity if it exists (11). The two time series may then be pre-processed by resampling to time intervals commensurate with response time between the two wells (13), detrending the measurements (14), and detecting and eliminating spiking noises (15). Then the time series are transformed to the frequency domain where coherence and phase between the two series are compared for varying frequencies (16). This comparison is used to make a determination of connectivity.

    摘要翻译: 用于定量评估不同频率下的井对的连通性的方法。 为两个井中的每一个选择时间序列测量(12),使得特定测量对于地下连通性是敏感的(11)。 然后可以通过对两个井(13)之间的响应时间相应的时间间隔进行重采样来预处理两个时间序列,去除测量(14)以及检测和消除尖峰噪声(15)。 然后将时间序列转换到频域,其中两个系列之间的相干和相位被比较以变化频率(16)。 该比较用于确定连通性。

    METHOD AND APPARATUS FOR GENERATING SEISMIC PULSES TO MAP SUBTERRANEAN FRACTURES
    10.
    发明申请
    METHOD AND APPARATUS FOR GENERATING SEISMIC PULSES TO MAP SUBTERRANEAN FRACTURES 有权
    用于产生地震脉冲以映射地下碎片的方法和装置

    公开(公告)号:US20140216730A1

    公开(公告)日:2014-08-07

    申请号:US13758013

    申请日:2012-04-10

    发明人: Haluk Vefa Ersoz

    IPC分类号: E21B47/00

    摘要: The methods described are for determining distribution, orientation and dimensions of networks of hydraulically-induced fractures within a subterranean formation containing fluids. Micro-seismic events are generated, after cessation of fracturing and establishment of fracture networks, by particles introduced into the fractures which are capable of explosive or chemical reaction. In one method, attachment site particles are positioned within the formation during fracturing and additional reactive particles are later introduced. The reactive particles attach to the attachment sites and, upon a triggering event, react to produce micro-seismic events. The waves generated by the micro-seismic events are used to provide mapping of the effective fracture space. Additionally, time-lapse mapping is provided with use of “species” of attachment sites and reactive particles.

    摘要翻译: 所描述的方法是用于确定含地层中含水流体的水力诱发裂缝网络的分布,取向和尺寸。 在破裂断裂和断裂网络建立停止后,通过引入能够爆炸或化学反应的裂缝中的颗粒产生微地震事件。 在一种方法中,附着位点颗粒在压裂期间位于地层内,并且后来引入另外的反应性颗粒。 反应性颗粒附着到附着位置,并且在触发事件时反应以产生微地震事件。 由微震事件产生的波浪用于提供有效断裂空间的映射。 另外,使用附着位点和反应性颗粒的“物种”来提供延时映射。