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    • 6. 发明申请
    • METHODS FOR EVALUATING INFLOW AND OUTFLOW IN A SUBTERRAEAN WELLBORE
    • 评估地下水井流入和流出的方法
    • US20130090855A1
    • 2013-04-11
    • US13585628
    • 2012-08-14
    • John RasmusWilliam LessoJohn James
    • John RasmusWilliam LessoJohn James
    • E21B47/06
    • E21B47/06E21B21/08E21B34/06E21B43/12E21B47/04E21B47/10E21B49/003E21B49/087G01V3/38
    • A method for evaluating inflow or outflow in a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval density may be measured during static conditions or while drilling and may be further processed to compute a density of an inflow constituent in the annulus. Changes in the computed interval density with time may be used as an indicator of either an inflow event or an outflow event.
    • 一种用于评估地下井眼中的流入或流出的方法包括获取井筒中的第一和第二轴向间隔的压力测量值。 然后可以处理压力测量以获得测量位置之间的钻井液的间隔密度。 可以使用包括大量轴向间隔开的压力传感器(例如,四个或更多或甚至六个或更多)的工具串,其通过有线钻杆与表面处理器电连接,以获得对应于各种井筒间隔的多个间隔密度。 间隔密度可以在静态条件下或在钻井时测量,并且可以进一步处理以计算环空中的流入成分的密度。 计算的间隔密度随时间的变化可用作流入事件或流出事件的指标。
    • 7. 发明申请
    • METHODS FOR EVALUATING BOREHOLE VOLUME CHANGES WHILE DRILLING
    • 用于评估钻孔时钻孔体积变化的方法
    • US20130090854A1
    • 2013-04-11
    • US13585601
    • 2012-08-14
    • John RasmusWilliam LessoJohn James
    • John RasmusWilliam LessoJohn James
    • G01V9/00G06F15/00
    • E21B21/08E21B7/00E21B47/06E21B47/10E21B49/005G01V9/00G06F15/00
    • A method identifying a wellbore volume change while drilling a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The wellbore volume change may include, for example, a borehole washout or a borehole pack-off. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval densities may be measured while drilling and may be further evaluated as an indicator of a wellbore volume change.
    • 在钻探地下井眼时识别井眼体积变化的方法包括在井眼中获取第一和第二轴向间隔的压力测量值。 井眼体积变化可以包括例如钻孔冲洗或钻孔包装。 然后可以处理压力测量以获得测量位置之间的钻井液的间隔密度。 可以使用包括大量轴向间隔开的压力传感器(例如,四个或更多或甚至六个或更多)的工具串,其通过有线钻杆与表面处理器电连接,以获得对应于各种井筒间隔的多个间隔密度。 间隔密度可以在钻井时测量,并可进一步评估为井眼体积变化的指标。
    • 9. 发明授权
    • Method of and apparatus for generating a frequency modulated ultrahigh
frequency radio transmission signal
    • 用于产生调频超高频无线电传输信号的方法和装置
    • US4710970A
    • 1987-12-01
    • US774989
    • 1985-09-11
    • Joseph C. WuYee-Shing LawJohn James
    • Joseph C. WuYee-Shing LawJohn James
    • H03C3/09H04B1/04
    • H03C3/09H03C2200/0079
    • A UHF transmission frequency oscillator generates a UHF radio signal that is frequency modulated by a program signal. The voltage applied to a control voltage input of the UHF transmission frequency oscillator controls the transmission frequency. A sample of the UHF transmission frequency signal is heterodyned with the output of a crystal controlled reference frequency oscillator to generate a frequency difference signal. A voltage controlled VHF radio signal generator produces a VHF signal frequency modulated by the program signal. A phase detector receives the frequency difference signal and the VHF signal frequency modulated by the program signal and therefrom applies a voltage to the control voltage input of the UHF transmission frequency oscillator for the transmission of a UHF radio frequency signal frequency modulated by the program signal. The VHF voltage controlled generator has VHF programmable frequency dividers, which are pre-settable, to establish the VHF radio transmission frequency. The output of the VHF voltage controlled generator is phase locked through the phase detector with the crystal controlled reference oscillator for the stabilizing of the output transmission frequency of the UHF transmission frequency oscillator.
    • UHF传输频率振荡器产生由程序信号进行频率调制的UHF无线电信号。 施加到UHF发送频率振荡器的控制电压输入的电压控制发送频率。 UHF传输频率信号的样本与晶体控制参考频率振荡器的输出进行外差,以产生频差信号。 电压控制的VHF无线电信号发生器产生由程序信号调制的VHF信号。 相位检测器接收频率差信号和由编程信号调制的VHF信号频率,并且从而向UHF传输频率振荡器的控制电压输入端施加电压,以传输由编程信号调制的UHF射频信号频率。 VHF电压控制发生器具有可预置的VHF可编程分频器,以建立VHF无线电传输频率。 VHF电压发生器的输出通过晶体控制参考振荡器的相位检测器锁相,用于稳定UHF传输频率振荡器的输出传输频率。
    • 10. 发明授权
    • Attention signal receiver for emergency broadcast systems
    • 紧急广播系统的注意信号接收机
    • US4392248A
    • 1983-07-05
    • US308611
    • 1981-10-05
    • Calvin EckelsJohn James
    • Calvin EckelsJohn James
    • G08B27/00H04H20/31H04B1/26H03J7/20
    • H04H20/31G08B27/008
    • An attention signal receiver in which emergency broadcast transmissions are detected from various locations. A scanning circuit sequentially activates means to produce a plurality of oscillating frequencies which mix or beat with the incoming r.f. signals. An attention signal is a two tone signal that includes both a 960 H.sub.z frequency signal and a 853 H.sub.z frequency signal. The audio stage of the receiver is connected to a two tone decoder that passes only a 960 H.sub.z signal and a 853 H.sub.z signal. A squelch circuit is also connected to the audio stage of the receiver. Connected to the output of the tone decoder is a one second time delay circuit and a ten second time delay circuit. If an attention signal is detected for a period of time in excess of 1 second, the one second time delay circuit stops the scanning of the scanning circuit to lock in the receiver to the first carrier detected with an attention signal. The ten second time delay circuit normally disables the squelching circuit. If the detected attention signal continues for a period of time in excess of 10 seconds, the ten second time delay circuit enables the squelch circuit to operate an alarm.
    • 一种注意信号接收器,其中从各个位置检测到紧急广播传输。 扫描电路依次激活装置以产生与输入的r.f混合或拍击的多个振荡频率。 信号。 注意信号是包括960Hz频率信号和853Hz频率信号的双音信号。 接收机的音频级与仅通过960Hz信号和853Hz信号的双音解码器连接。 静噪电路也连接到接收机的音频级。 连接到音调解码器的输出是一秒钟延时电路和十秒延时电路。 如果在超过1秒的时间内检测到注意信号,则一秒钟延迟电路停止扫描电路的扫描,以将接收器锁定到用注意信号检测到的第一载波。 十秒钟延时电路通常禁用静电电路。 如果检测到的注意信号持续超过10秒的时间段,则十秒钟延迟电路使得静噪电路能够进行报警。