会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Systems and methods of determining motion tool parameters in borehole logging
    • 确定井眼测井中运动工具参数的系统和方法
    • US06975112B2
    • 2005-12-13
    • US10713923
    • 2003-02-11
    • Marian MorysGeorge D. GoodmanManfred G. Prammer
    • Marian MorysGeorge D. GoodmanManfred G. Prammer
    • E21B47/00G01V3/00
    • G01V3/32E21B47/00G01V11/005
    • A system and method for calculating the lateral velocity of a rotating drilling tool within a borehole, the system comprising: a pair of accelerometers placed oppositely across the drilling tool axis of rotation and two magnetometers. The method comprises: reading tool radial acceleration signals ar1, ar2, and tangential acceleration signals, at1 and at3, obtained with a quadrature accelerometer detection system; reading Bx and By, the tool's magnetic phase data, from two orthogonally placed magnetometers; determining the rotational phase angle of the drilling tool relative to the earth's gravity field by first determining the tool's magnetic phase, and the phase shift between the tool's magnetic phase and gravity phase; and processing the foregoing data to yield a lateral tool velocity which optionally compensates for the effect of gravity on the accelerometers, or converts the lateral tool velocity from the tool reference frame to the borehole reference frame, or does both.
    • 一种用于计算井眼内的旋转钻具的横向速度的系统和方法,所述系统包括:一对相对于所述钻具的旋转轴线和两个磁力计相对放置的加速度计。 该方法包括:读取刀具径向加速度信号a1,r2,...,r2,以及切向加速度信号,t1 和t3 < / SUB>,用正交加速度计检测系统获得; 从两个正交放置的磁力计读取工具的磁相数据B&lt; x&gt;和B&gt; y&lt; / SUB; 通过首先确定工具的磁相以及工具的磁性相和重力相位之间的相位,确定钻具相对于地球重力场的旋转相位角; 并且处理前述数据以产生侧向刀具速度,其可选地补偿重力对加​​速度计的影响,或将侧向刀具速度从刀具参考系转换到钻孔参考系,或者两者。
    • 8. 发明授权
    • Systems and methods for determining motion tool parameters in borehole logging
    • 用于确定井眼测井中运动工具参数的系统和方法
    • US06518756B1
    • 2003-02-11
    • US09882228
    • 2001-06-14
    • Marian MorysGeorge D. GoodmanManfred G. Prammer
    • Marian MorysGeorge D. GoodmanManfred G. Prammer
    • G01V300
    • G01V3/32E21B47/00G01V11/005
    • A system and method for calculating the lateral velocity of a rotating drilling tool within a borehole, the system comprising: a pair of accelerometers placed oppositely across the drilling tool axis of rotation and two magnetometers. The method comprises: reading tool radial acceleration signals ar1, ar2, and tangential acceleration signals, at1 and at3, obtained with a quadrature accelerometer detection system; reading Bx and y, the tool's magnetic phase data, from two orthogonally placed magnetometers; determining, &phgr;, the rotational phase angle of the drilling tool relative to the earth's gravity field by first determining &phgr;m, the tool's magnetic phase, and &phgr;), the phase shift between the tool's magnetic phase and gravity phase; and processing the foregoing data to yield a lateral tool velocity which optionally compensates for the effect of gravity on the accelerometers, or converts the lateral tool velocity from the tool reference frame to the borehole reference frame, or does both.
    • 一种用于计算井眼内的旋转钻具的横向速度的系统和方法,所述系统包括:一对相对于所述钻具的旋转轴线和两个磁力计相对放置的加速度计。 该方法包括:读取刀具径向加速度信号ar1,ar2和切向加速度信号at1和at3,用正交加速度计检测系统获得; 从两个正交放置的磁力计读取Bx和y,该工具的磁相数据; 通过首先确定刀具的磁相和phi来确定钻具相对于地球重力场的旋转相位角,工具的磁相和重力相位之间的相移; 并且处理前述数据以产生侧向刀具速度,其可选地补偿重力对加​​速度计的影响,或将侧向刀具速度从刀具参考系转换到钻孔参考系,或者两者。
    • 10. 发明授权
    • Protection circuit for a battery cell
    • 电池单元的保护电路
    • US06815930B2
    • 2004-11-09
    • US10056144
    • 2002-01-24
    • George D. Goodman
    • George D. Goodman
    • H01M1044
    • H02J7/0031
    • A protection circuit couples to and protects a battery cell. The protection circuit generally limits the current that can flow through cell when the voltage across the cell falls to a predetermined minimum threshold, such as might occur if the cell is passivated, fails in service, or is reaching the end of its useful life. The protection circuit preferably includes a transistor, which couples in series with the cell and limits the current therethrough. By limiting the current through the cell when its voltage reaches a minimum threshold, the voltage on the cell will not fall below the minimum safe level. A bypass means (e.g., a diode) also is included to conduct current around the cell when its current has been limited by the transistor.
    • 保护电路耦合到并保护电池单元。 当电池两端的电压下降到预定的最小阈值时,保护电路通常会限制可以流经电池的电流,例如,如果电池被钝化,使用失效或达到其使用寿命的终点可能会发生。 保护电路优选地包括与电池串联耦合并限制电流通过的晶体管。 通过在电压达到最小阈值时限制电流通过电池,电池上的电压不会降至最低安全水平以下。 还包括旁路装置(例如,二极管),以在其电流受到晶体管的限制时在电池周围传导电流。