DRILLING SPEED AND DEPTH COMPUTATION FOR DOWNHOLE TOOLS
    75.
    发明公开
    DRILLING SPEED AND DEPTH COMPUTATION FOR DOWNHOLE TOOLS 审中-公开
    钻井工具的钻速和深度计算

    公开(公告)号:EP2864587A4

    公开(公告)日:2015-09-09

    申请号:EP13806290

    申请日:2013-05-20

    发明人: SUGIURA JUNICHI

    IPC分类号: E21B44/02 E21B45/00

    摘要: A method for managing a drilling operation, including generating, by a first sensor and a second sensor of a bottom hole assembly (BHA), a first time based data log and a second time based data log, respectively, representing a borehole parameter along a drilling trajectory, determining, by a computer processor of the BHA and during the drilling operation, a time shift by comparing the first time based data log and the second time based data log, where offsetting the first and second time based data logs by the time shift maximizes a correlation factor of the first and second time based data logs, and determining, within a pre-determined time period from generating the first and second time based data logs, a drilling speed based on the time shift and a pre-determined distance between the first sensor and the second sensor.

    摘要翻译: 一种用于管理钻孔操作的方法,包括由底孔组件(BHA)的第一传感器和第二传感器生成分别表示沿着钻孔参数的钻孔参数的第一时基数据日志和第二时间数据日志 钻孔轨迹,通过BHA的计算机处理器和在钻井操作期间通过比较基于第一时间的数据日志和第二时间的数据日志来确定时间偏移,其中基于第一和第二时间的数据记录在时间 移位使得基于第一和第二时基的数据记录的相关因子最大化,并且在从生成第一和第二基于时间的数据记录的预定时间段内确定基于时移和预定距离的钻孔速度 在第一传感器和第二传感器之间。

    HIGH DEFINITION DRILLING RATE OF PENETRATION FOR MARINE DRILLING
    77.
    发明公开
    HIGH DEFINITION DRILLING RATE OF PENETRATION FOR MARINE DRILLING 有权
    海洋钻井用高定义钻进钻速

    公开(公告)号:EP2807333A2

    公开(公告)日:2014-12-03

    申请号:EP13734149.1

    申请日:2013-01-17

    发明人: MARTIN, Trenton

    摘要: Two sensors may be installed on a marine drill to improve measurements used for monitoring and operating the marine drill. The sensors may be installed in a differential configuration with one sensor located on a top block of the marine drill and a second sensor located on a drilling floor of the marine drill. Various calculations may be performed using measurements obtained from the two sensors such as, for example, rate of penetration of the marine drill, drilling level bubble for the marine drill out of- straightness values for the marine drill, and vibration, motion for the marine drill.

    摘要翻译: 可以在海洋钻机上安装两个传感器,以改善用于监测和操作海洋钻机的测量。 传感器可以以差动配置安装,其中一个传感器位于海洋钻机的顶部块体上,而第二传感器位于海洋钻机的钻机底板上。 可以使用从两个传感器获得的测量结果进行各种计算,例如,海洋钻机的钻进速度,海洋钻机的钻井水平气泡,海洋钻机的直线度值以及船舶的振动,运动 钻头。

    METHOD FOR IMPROVING DRILLING DEPTH MEASUREMENTS
    79.
    发明公开
    METHOD FOR IMPROVING DRILLING DEPTH MEASUREMENTS 审中-公开
    方法的改进深度测量

    公开(公告)号:EP1502003A4

    公开(公告)日:2006-01-11

    申请号:EP03719554

    申请日:2003-04-03

    申请人: HUTCHINSON MARK W

    发明人: HUTCHINSON MARK W

    摘要: A method for determining a depth of a wellbore is disclosed. The method includes determining change in a suspended weight of a drill string from a first time to a second time. A change in axial position of the upper portion of the drill string between the first time and the second time is determined. An expected amount of drill string compression related to the change in suspended weight is corrected for movement of a lower portion of the drill string between the first time and the second time. A position of the lower portion of the drill string is calculated from the change in axial position and the corrected amount of drill string compression. In one embodiment, the correcting includes estimating drill bit movement by determining an axial motion of the drill string at the earth's surface between two times having a same suspended weight of the drill string.