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    • 7. 发明授权
    • Measurement pretest drawdown methods and apparatus
    • 测量预测下降方法和仪器
    • US09581019B2
    • 2017-02-28
    • US13069674
    • 2011-03-23
    • Yong ChangJulian J. Pop
    • Yong ChangJulian J. Pop
    • G01V1/40G01V3/18E21B49/00E21B49/08
    • E21B49/008E21B49/088
    • Methods of and apparatus to perform a drawdown of a formation fluid in a downhole environment are disclosed. An example method includes contacting a borehole wall with a fluid communication device of a formation testing tool and performing a first type of drawdown to draw fluid into the fluid communication device. The method also includes detecting a breach of a mudcake on the borehole wall during performance of the first type of drawdown and performing a second type of drawdown to draw fluid into the sample probe in response to detecting the breach of the mudcake. The second type of drawdown is different than the first type of drawdown. Furthermore, the example method includes confirming the breach of the mudcake on the borehole wall during performance of the second type of drawdown.
    • 公开了在井下环境中进行地层流体的压下的方法和装置。 一个示例性方法包括使钻孔壁与地层测试工具的流体连通装置接触并执行第一类型的抽出以将流体引入到流体通信装置中。 该方法还包括在执行第一类型的抽出期间检测在井壁上的泥饼的破裂,并且响应于检测到泥饼的破裂而执行第二类型的抽出以将流体抽入样品探针。 第二种缩减方式不同于第一种缩减方式。 此外,示例性方法包括在执行第二种类型的抽出期间确认在井壁上的泥饼的破裂。
    • 8. 发明授权
    • Interference testing while drilling
    • 钻孔时进行干扰测试
    • US09063250B2
    • 2015-06-23
    • US12858835
    • 2010-08-18
    • Julian J. Pop
    • Julian J. Pop
    • G01V3/00E21B47/00E21B49/00C09K8/02G01V1/40
    • G01V1/40E21B49/008
    • A method and apparatus configured to perform an interference test while drilling, including the steps of computing a pressure history response at a monitoring well from a pulsing of a well remote to the monitoring well, determining a time interval and a location for conducting a pressure test along a monitoring well trajectory based on the computing of the pressure history response, initiating a pulsing of the well remote to the monitoring well, determining whether pressure data should be taken at the monitoring well, estimating a near wellbore pressure effect at the monitoring well if the pressure data is taken, adjusting a mud circulation flow rate in the monitoring well if the pressure data is taken, and measuring at least one pressure value at the monitoring well if the pressure data is taken.
    • 一种被配置为在钻井时执行干涉测试的方法和装置,包括以下步骤:计算监测井的压力历史响应,从井远程到监测井的脉冲,确定进行压力测试的时间间隔和位置 沿着基于压力历史响应的计算的监测井轨迹,启动远程监测井的脉冲,确定是否应在监测井获取压力数据,估计监测井的近井眼压力效应,如果 采取压力数据,如果采取压力数据,则调整监测井中的泥浆循环流量,如果采取压力数据,则测量监测井的至少一个压力值。