METHODS OF EVALUATING ROCK PROPERTIES WHILE DRILLING USING DOWNHOLE ACOUSTIC SENSORS AND A DOWNHOLE BROADBAND TRANSMITTING SYSTEM
    12.
    发明申请
    METHODS OF EVALUATING ROCK PROPERTIES WHILE DRILLING USING DOWNHOLE ACOUSTIC SENSORS AND A DOWNHOLE BROADBAND TRANSMITTING SYSTEM 审中-公开
    使用卧室声学传感器钻井的井眼特性评估方法和卧式宽带发射系统

    公开(公告)号:WO2013049158A2

    公开(公告)日:2013-04-04

    申请号:PCT/US2012/057274

    申请日:2012-09-26

    Inventor: YANG, Yunlai, X.

    Abstract: 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.

    Abstract translation: 提供了在钻井期间实时识别岩石性质的方法。 这种方法的一个例子包括在钻头(101)和钻柱(117)之间连接井下传感器子组件(104),可操作地将声传感器(102)耦合到井下数据接口(103),并且可操作地耦合 表面计算机(124)到井下数据接口(103)。该方法还可以包括接收由于在钻井期间钻头(101)与岩石的旋转接触而实时生成的原始声学传感器数据,从而将原始数据 进入频域,对经变换的数据进行滤波,以及从滤波数据(301)导出多个声学特征(114)。这可以通过存储在存储器(122)中的岩石物理特性(115)分析程序(112)来执行, 的计算机(124)。 该方法还可以包括利用可用于预测经历钻探的岩石的一个或多个岩石物理性质(115)的岩石物理性质评估算法(303)从滤波数据(301)导出岩石物理性质(115)。

Patent Agency Ranking