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    • 2. 发明申请
    • PRECISE BOREHOLE GEOMETRY AND BHA LATERAL MOTION BASED ON REAL TIME CALIPER MEASUREMENTS
    • 基于实时卡尺测量的精密钻孔几何和BHA横向运动
    • WO2013019553A2
    • 2013-02-07
    • PCT/US2012048330
    • 2012-07-26
    • BAKER HUGHES INCPEI JIANYONGDAHL THOMASMACPHERSON JOHN
    • PEI JIANYONGDAHL THOMASMACPHERSON JOHN
    • E21B47/092E21B47/09E21B47/12
    • E21B47/082
    • Disclosed is a method for estimating a geometry of a borehole penetrating the earth. The method includes: performing a plurality of borehole caliper measurements with N transducers at a plurality of times, wherein for each time a measurement set comprises measurements made by the N transducers at that time; dividing a cross-section of the borehole into S sectors; obtaining an estimate of the borehole geometry by connecting representative radius points in adjacent sectors; displacing each measurement set according to a displacement vector related to an offset of each measurement set from the estimated geometry if the displacement vector exceeds a selection criterion; iterating the obtaining an estimate of the borehole geometry and the displacing each measurement set based on a latest displacement vector; and providing a latest obtained estimate as the geometry of the borehole when all of the displacement vectors no longer exceed the selection criterion for the displacing.
    • 公开了一种用于估计穿透地球的钻孔的几何结构的方法。 该方法包括:用N个换能器多次执行多个钻孔卡尺测量,其中每次测量集合包括此时由N个换能器进行的测量; 将钻孔的横截面分成S个扇区; 通过连接相邻扇区中的代表性的半径点来获得钻孔几何形状的估计; 如果位移矢量超过选择标准,则根据与每个测量集合的偏移量有关的位移矢量从估计的几何图形移位每个测量集合; 迭代获得钻孔几何形状的估计以及基于最新位移矢量来移位每个测量集合; 以及当所有位移矢量不再超过用于位移的选择标准时,提供最新获得的估计作为钻孔的几何形状。
    • 3. 发明申请
    • DRILLING DYNAMICS DATA VISUALIZATION IN REAL TIME
    • 实时钻井动态数据可视化
    • WO2013033183A2
    • 2013-03-07
    • PCT/US2012052825
    • 2012-08-29
    • BAKER HUGHES INCMACPHERSON JOHNKING MICHAELWARLING DARIN JRECKMANN HANNO
    • MACPHERSON JOHNKING MICHAELWARLING DARIN JRECKMANN HANNO
    • E21B47/02E21B47/022
    • E21B44/00
    • Disclosed is an apparatus for displaying three-dimensional motion of a drill string in a borehole penetrating the earth to a user in real time. The apparatus includes: an accelerometer configured to measure acceleration in at least three directions; a strain sensor configured to measure strain or a bending moment at the drill string in two directions; a magnetometer and configured to measure an earths magnetic field to determine rotational velocity of the drill string; a processor disposed at a surface of the earth and configured to receive the measurements from the accelerometer, the strain sensor, and the magnetometer and to process these measurements to estimate the three-dimensional motion of the drill string; a display configured to display the motion of the drill string to the user; and a highspeed telemetry system configured to transmit measurements from the accelerometer, the strain sensor, and the magnetometer to the processor in real time.
    • 本发明公开了一种用于实时显示穿透地球到用户的钻孔中的钻柱的三维运动的装置。 该设备包括:加速计,被配置为测量至少三个方向上的加速度; 应变传感器,所述应变传感器构造成沿两个方向测量所述钻柱处的应变或弯矩; 磁力计并被配置成测量地磁场以确定钻柱的旋转速度; 处理器,其布置在地球的表面并且被配置为接收来自加速度计,应变传感器和磁力计的测量结果并且处理这些测量结果以估计钻柱的三维运动; 显示器,其被配置为向用户显示钻柱的运动; 以及高速遥测系统,其被配置为实时地将来自加速度计,应变传感器和磁力计的测量结果传输到处理器。