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41. 发明授权

US5682099A Method and apparatus for signal bandpass sampling in measurement-while-drilling applications 失效
标题翻译：测量同步钻孔应用中信号带通采样的方法和装置
公开(公告)号：US5682099A
公开(公告)日：1997-10-28
申请号：US478171
申请日：1995-06-07
申请人： Larry W. Thompson , MacMillan M. Wisler , David Mark Schneider
发明人： Larry W. Thompson , MacMillan M. Wisler , David Mark Schneider
IPC分类号： G01V3/30 , G01V3/26 , G06G7/76
CPC分类号： G01V3/30
摘要： A logging apparatus is provided for use in a wellbore for measuring an attribute of at least one of the wellbore and a surrounding formation, when coupled to a wellbore tubular expended in the wellbore. The logging apparatus includes a housing, at least one transmitter, and at least one receiver. The transmitter is carried by the housing and is individually and selectively operable for producing electromagnetic interrogating signal at selected interrogation frequency for passage to the wellbore and surrounding formation. The receiver is carried by the housing in a selected position relative to the transmitter, and is tuned to receive electromagnetic signals at the interrogation frequency to the exclusion of other frequencies. A portion of at least one of the wellbore, and surrounding formation has an attribute value which can be derived from at least one of amplitude attenuation of electromagnetic interrogating signal as determined from measurements of the electromagnetic interrogating signals taken through the receiver, and phase shift of electromagnetic interrogating signal as determined from measurements from electromagnetic signal taken through the receiver. The apparatus further includes means for sampling signals from the receiver or receivers at a sampling frequency which is less than the interrogation frequency. A controller member is provided for selectively energizing the transmitters and for selectively obtaining measurements of the electromagnetic interrogating signal with the receivers, and determining an accurate measure of the attribute value.
摘要翻译：当与井筒中消耗的井筒管连接时，提供测井装置用于在井筒中用于测量井眼和周围地层中的至少一个的属性。记录装置包括壳体，至少一个发射器和至少一个接收器。发射机由壳体承载，并且被单独和选择性地操作以产生选择的询问频率的电磁询问信号，以通过井筒和周围的地层。接收机由外壳承载在相对于发射机的选定位置，并且被调谐以在询问频率处接收电磁信号以排除其他频率。井眼和周围地层中的至少一个的一部分具有属性值，其可以从根据通过接收器拍摄的电磁询问信号的测量确定的电磁询问信号的幅度衰减中的至少一个导出，电磁询问信号根据通过接收机拍摄的电磁信号的测量结果确定。该装置还包括用于以小于询问频率的采样频率从接收机或接收机采样信号的装置。提供控制器构件用于选择性地激励发射器并且用于选择性地获得与接收器的电磁询问信号的测量，并且确定属性值的准确度量。

42. 再颁专利

USRE35386E Method for drilling directional wells 失效
标题翻译：钻井定向井的方法
公开(公告)号：USRE35386E
公开(公告)日：1996-12-03
申请号：US290195
申请日：1994-08-15
申请人： Jian-Qun Wu , Macmillan M. Wisler
发明人： Jian-Qun Wu , Macmillan M. Wisler
IPC分类号： E21B7/04 , E21B7/06 , E21B47/022 , G01V3/30
CPC分类号： E21B7/06 , E21B47/022 , E21B7/046 , G01V3/30
摘要： A method for detecting and sensing boundaries between strata in a formation during directional drilling so that the drilling operation can be adjusted to maintain the drillstring within a selected stratum is presented. The method comprises the initial drilling of an offset well from which resistivity of the formation with depth is determined. This resistivity information is then modeled to provide a modeled log indicative of the response of a resistivity tool within a selected stratum in a substantially horizontal direction. A directional (e.g., horizontal) well is thereafter drilled wherein resistivity is logged in real time and compared to that of the modeled horizontal resistivity to determine the location of the drill string and thereby the borehole in the substantially horizontal stratum. From this, the direction of drilling can be corrected or adjusted so that the borehole is maintained within the desired stratum.
摘要翻译：提出了一种用于在定向钻井期间检测和感测地层中的层之间的边界的方法，以便可以调整钻孔操作以将钻柱维持在选定层内。该方法包括初始钻孔，确定具有深度的地层电阻率的偏移井。然后对该电阻率信息进行建模以提供指示在基本上水平方向上的选定层内的电阻率工具的响应的建模对数。此后钻出方向（例如，水平）井，其中电阻率实时记录并与建模的水平电阻率进行比较，以确定钻柱的位置，从而确定基本水平的地层中的钻孔。由此，可以校正或调节钻孔的方向，使得钻孔保持在期望的层内。

43. 发明授权

US5530358A Method and apparatus for measurement-while-drilling utilizing improved antennas 失效
标题翻译：利用改进的天线进行钻井测量的方法和装置
公开(公告)号：US5530358A
公开(公告)日：1996-06-25
申请号：US187417
申请日：1994-01-25
申请人： Macmillan M. Wisler , Larry W. Thompson , William C. Paluch
发明人： Macmillan M. Wisler , Larry W. Thompson , William C. Paluch
IPC分类号： G01V3/30 , G01V3/10 , H01Q1/04 , H01Q7/08
CPC分类号： G01V3/30
摘要： A method and apparatus is provided for measurement-while-drilling utilizing improved antennas. An elongated tubular member is provided with an outer peripheral surface having a contoured portion defining a plurality of discrete communication regions of reduced radial dimension. An antenna pathway is defined in the elongated member substantially transverse to the plurality of discrete communication regions. An antenna member is partially disposed in the antenna pathway with portions of the antenna member extending out of the elongated member at the plurality of discrete communication regions to facilitate communication of electromagnetic energy. In a reception mode of operation, the antenna member detects electromagnetic energy in the wellbore and generates a current corresponding thereto. If operated in a transmission mode of operation, the antenna member emits electromagnetic energy in the wellbore in response to an energizing current. Preferably, the plurality of discrete communication regions are circumferentially disposed about the elongated member. Means is provided for preferentially communicating electromagnetic energy with particular portions of the antenna member which are disposed in the plurality of discrete communication regions. In one particular embodiment, a plurality of electrically-operable magnetic circuit elements are provided for communicating with particular ones of the plurality of discrete communication regions of the antenna member, for altering antenna gain in response to at least one control signal.
摘要翻译：提供了一种利用改进的天线进行钻孔测量的方法和装置。细长管状构件设置有外周表面，该外周表面具有限定径向尺寸减小的多个离散连通区域的轮廓部分。天线通道被限定在基本横向于多个离散通信区域的细长构件中。天线部件部分地设置在天线通道中，天线部件的部分在多个离散通信区域延伸出细长部件，以便于电磁能的通信。在接收操作模式中，天线构件检测井眼中的电磁能量并产生与其对应的电流。如果在传输操作模式下操作，天线部件响应于通电电流在井眼中发射电磁能。优选地，多个离散的连通区域围绕细长构件周向设置。提供了用于优先地将电磁能量与设置在多个离散通信区域中的天线部件的特定部分进行通信的装置。在一个特定实施例中，提供了多个电动可操作的磁路元件，用于与天线构件的多个离散通信区域中的特定的一个通信区域通信，用于响应于至少一个控制信号改变天线增益。

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