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    DETECTING AND LOCATING FLUID FLOW IN SUBTERRANEAN ROCK FORMATIONS
    3.
    发明公开
    DETECTING AND LOCATING FLUID FLOW IN SUBTERRANEAN ROCK FORMATIONS 审中-公开
    检测与定位在地下地层石流体流动的

    公开(公告)号：EP2452177A1

    公开(公告)日：2012-05-16

    申请号：EP10797805.8

    申请日：2010-07-07

    申请人： Hipoint Reservoir

    发明人： FULLER, Brian ,  STERLING, John, Marc ,  ENGELBRECHT, Les, G.

    IPC分类号： G01N15/08

    CPC分类号： G01N15/08 ,  E21B47/02208 ,  G01V1/288 ,  G01V1/42

    摘要： A method and system includes acquiring a seismic dataset while fluids are injected into the subsurface with seismic data recorded at multiple sensor locations. Seismic travel times are computed between sensors and subsurface locations using a velocity model. Travel times and travel time delays between pairs of sensors may be used as input to determine a similarity coefficient associated with subsurface positions. The similarity coefficients are determined using cross correlation, semblance calculations or eigenstructure decomposition. The coefficient values are related to the acoustic response at each subsurface position and may be summed together for each position for comparison with other other subsurface positions to determine the position of a fluid front moving through the subsurface. The values may be displayed to illustrate the position of fluids in the subsurface and displayed to show the time variance of the fluid position.

    METHOD FOR ESTIMATING THE POSITION OF A DRILL
    5.
    发明公开
    METHOD FOR ESTIMATING THE POSITION OF A DRILL 有权
    方法用于确定一种钻井工具中的地位

    公开(公告)号：EP1268977A1

    公开(公告)日：2003-01-02

    申请号：EP01918127.0

    申请日：2001-04-03

    申请人： Guideline AB

    发明人： HJORTH, Jan ,  LITZ N, Björn

    IPC分类号： E21B47/09

    CPC分类号： G01V1/42 ,  E21B44/00 ,  E21B47/02208 ,  E21B47/024

    摘要： The present invention relates to a method for estimating the position and trajectory of a drill during drilling of boreholes in rock. The method comprising the steps of determining the starting position of the drill bit and recording the received transient seismic waves generated by the drill on impact, and estimating the difference in arrival time between events. From these, the relative distances, between the positions of the drill bit at different events are calculated and from these the present position is calculated.

    Downhole signal source Location
    6.
    发明公开
    Downhole signal source Location 有权
    位于einem Bohrloch的Positionsbestimmung einer Signalquelle

    公开(公告)号：EP0905351A2

    公开(公告)日：1999-03-31

    申请号：EP98307760.3

    申请日：1998-09-24

    申请人： Halliburton Energy Services, Inc.

    发明人： Mandal, Batakrishna ,  Minear, John W. ,  Birchak, James Robert

    IPC分类号： E21B47/022

    CPC分类号： E21B47/02208

    摘要： The location of a downhole source (30) of a transmitted acoustic signal is determined using at least one downhole signal receiver (40,42,44,46,48). Either or both the triangulation method and the holographic method are used to determine the signal location.

    摘要翻译： 使用至少一个井下信号接收器（40,42,44,46,48）确定所发射的声信号的井下源（30）的位置。 使用三角测量方法和全息方法中的一种或两种来确定信号位置。

    AN ACOUSTIC SYSTEM TO GUIDE A COAL SEAM AUGER
    7.
    发明公开
    AN ACOUSTIC SYSTEM TO GUIDE A COAL SEAM AUGER 失效
    音法对于运行螺旋煤层。

    公开(公告)号：EP0064978A1

    公开(公告)日：1982-11-24

    申请号：EP81901374.0

    申请日：1980-11-24

    申请人： Conoco Inc.

    发明人： COON, Julian B. ,  FOWLER, James C. ,  WATERS, Kenneth, H. ,  PAYTON, Charles E.

    IPC分类号： E21B7 ,  E21B47 ,  G01S15

    CPC分类号： G01S15/36 ,  E21B7/04 ,  E21B47/02208 ,  G01S15/88

    摘要： Procede de forage d'un trou (20), de telle sorte que son axe soit sensiblement parallele a l'axe d'un trou deja fore (20) pour positionner un emetteur acoustique (28) et un recepteur (30) contre le trou en cours de forage de sorte que leur position sur la paroi soit sur un plan horizontal coupant l'axe de l'alesage du trou en cours de forage. Ensuite, un signal acoustique de frequence acoustique est transmis dans la paroi du trou. Le signal reflechi est recu de la paroi adjacente en meme temps que d'autres reflexions supplementaires indesirees. Le dephasage est alors determine entre le signal transmis et le signal recu et les changements de distance entre la paroi du trou de l'alesage sont ensuite determines.

    METHOD AND SYSTEM FOR DOWNHOLE OBJECT LOCATION AND ORIENTATION DETERMINATION
    8.
    发明公开
    METHOD AND SYSTEM FOR DOWNHOLE OBJECT LOCATION AND ORIENTATION DETERMINATION 审中-公开
    VERFAHREN UND SYSTEM ZUR BESTIMMUNG VON BOHRLOCHOBJEKTLAGE UND-AURICHTUNG

    公开(公告)号：EP3143440A1

    公开(公告)日：2017-03-22

    申请号：EP15739311.7

    申请日：2015-05-15

    申请人： Silixa Limited

    发明人： MILNE, Craig ,  FRANKEY, Brian ,  PARKER, Tom ,  FARHADIROUSHAN, Mahmoud

    IPC分类号： G01V11/00 ,  G01V1/44 ,  E21B47/022

    CPC分类号： G01V1/46 ,  E21B43/116 ,  E21B47/02208 ,  E21B47/091 ,  G01D5/14 ,  G01V1/226 ,  G01V1/44 ,  G01V11/002

    摘要： Embodiments of the invention provide a downhole device that is intended to be co- located with an optical fiber cable to be found, for example by being fixed together in the same clamp. The device has an accelerometer or other suitable orientation determining means that is able to determine its positional orientation, with respect to gravity. A vibrator or other sounder is provided, that outputs the positional orientation information as a suitable encoded and modulated acoustic signal. A fiber optic distributed acoustic sensor deployed in the vicinity of the downhole device detects the acoustic signal and transmits it back to the surface, where it is demodulated and decoded to obtain the positional orientation information. Given that the device is co-located with the optical fiber the position of the fiber can then be inferred. As explained above, detecting the fiber position is important during perforation operations, so that the fiber is not inadvertently damaged.

    摘要翻译： 提供井下装置，其旨在与待发现的光缆共同定位，例如通过在同一夹具中固定在一起。 该装置具有能够相对于重力确定其位置取向的加速度计或其它合适的取向确定装置。 提供振动器或其他发声器，其输出作为适当的编码和调制声信号的位置取向信息。 布置在井下装置附近的光纤分布式声学传感器检测声信号并将其发送回表面，在那里进行解调和解码以获得位置取向信息。 假定设备与光纤共处于一处，则可以推断光纤的位置。 如上所述，在穿孔操作期间检测纤维位置是重要的，使得纤维不会被无意地损坏。

    METHODS OF EVALUATING ROCK PROPERTIES WHILE DRILLING USING DOWNHOLE ACOUSTIC SENSORS AND A DOWNHOLE BROADBAND TRANSMITTING SYSTEM
    10.
    发明公开
    METHODS OF EVALUATING ROCK PROPERTIES WHILE DRILLING USING DOWNHOLE ACOUSTIC SENSORS AND A DOWNHOLE BROADBAND TRANSMITTING SYSTEM 有权
    程序。评估岩石特征与孔声学传感器和宽带传输系统在钻井过程中

    公开(公告)号：EP2761337A2

    公开(公告)日：2014-08-06

    申请号：EP12783703.7

    申请日：2012-09-26

    申请人： Saudi Arabian Oil Company

    发明人： YANG, Yunlai

    IPC分类号： G01V1/48 ,  G01V1/30

    CPC分类号： E21B47/02208 ,  E21B49/003 ,  G01V1/306 ,  G01V1/50 ,  G01V2200/16 ,  G01V2210/1216

    摘要： Methods of identifying rock properties in real-time during drilling, are provided. An example of such a method includes connecting a downhole sensor subassembly (104) between a drill bit (101) and a drill string (117), operably coupling acoustic sensors (102) to a downhole data interface (103), and operably coupling a surface computer (124) to the downhole data interface (103), The method can also include receiving raw acoustic sensor data generated real-time as a result of rotational contact of the drill bit (101) with rock during drilling, transforming the raw data into the frequency domain, filtering the transformed data, and deriving a plurality of acoustic characteristics (114) from the filtered data (301), This can be performed by a petrophysical properties (115) analyzing program (112) stored in memory (122) of the computer (124). The method can also include deriving petrophysical properties (115) from the filtered data (301) utilizing a petrophysical properties evaluation algorithm (303) employable to predict one or more petrophysical properties (115) of rock undergoing drilling.

    摘要翻译： 钻井过程中识别实时岩石特性的方法，提供。 寻求方法的一个例子包括一个钻头（101）和一个钻柱（117）的声学传感器（102）可操作地联接到井下数据接口（103）和可操作地联接一个之间进行连接的井下传感器子组件（104） 面计算机（124）到所述井下数据接口（103），该方法可因此包括接收实时生成作为钻头（101）在钻井过程中岩石的转动接触的结果的原始声学传感器数据，将所述原始数据 转换到频域，滤波变换后的数据，并导出的声学特性从滤波的数据的多个（114）（301）这可以通过存储在存储器中的石油的物理性质（115）分析程序（112）执行（122） 计算机（124）的。 因此，该方法可以包括导出从过滤的数据（301）利用一个石油物理特性的评估算法（303）可使用石油物理特性（115）来预测岩石钻孔经历的一个或多个石油的物理性质（115）。