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1. 发明授权

US4655300A Method and apparatus for detecting wear of a rotatable bit 失效
标题翻译：用于检测可旋转钻头磨损的方法和装置
公开(公告)号：US4655300A
公开(公告)日：1987-04-07
申请号：US781198
申请日：1985-09-26
申请人： Albert P. Davis, Jr. , Mark S. Ramsey , Joseph W. Stolle
发明人： Albert P. Davis, Jr. , Mark S. Ramsey , Joseph W. Stolle
IPC分类号： E21B10/22 , E21B12/02
CPC分类号： E21B12/02 , E21B10/22
摘要： The present invention relates to a method and apparatus for detecting excessive wear of a rotatable bit used in drilling. In particular, the apparatus can detect loss of gauge or bearing failure in a bit. The method is accomplished by connecting a restricting means in the drill bit that can be manipulated to reduce the flow of drilling fluid through at least one port in the drill bit. A wire is connected between a sensor which senses wear and the restriction means to cause the restriction means to reduce the flow of drilling fluid and thereby signal the surface by the reduced flow as an indication of wear.
摘要翻译：本发明涉及一种用于检测钻孔中使用的可旋转钻头的过度磨损的方法和装置。特别地，该装置可以一点检测出量规或轴承故障的损失。该方法通过将钻头中的限制装置连接起来来实现，该限制装置可以被操纵以减少钻井流体通过钻头中的至少一个端口的流动。电线连接在感测磨损的传感器和限制装置之间，以使限制装置减小钻井液的流动，从而通过减少的流量来将表面信号作为磨损的指示。

2. 发明授权

US4785894A Apparatus for detecting drill bit wear 失效
标题翻译：钻头磨损检测装置
公开(公告)号：US4785894A
公开(公告)日：1988-11-22
申请号：US166592
申请日：1988-03-10
申请人： Albert P. Davis, Jr. , Joseph W. Stolle
发明人： Albert P. Davis, Jr. , Joseph W. Stolle
IPC分类号： E21B10/08 , E21B10/22 , E21B12/02 , E21B44/00
CPC分类号： E21B12/02 , E21B10/22
摘要： An earth drilling bit incorporating a bit wear indicator. The bit wear indicator includes: a sensor to detect wear at a selected point on the bit; a device for altering the resistance of the bit to receiving drilling fluid from the drill string; and, a tensioned linkage extending between the wear sensor and the flow resistance altering means. On detecting a predetermined degree of wear, the wear sensor releases the tension in the tensioned linkage. This activates the flow resistance altering device, causing the flow rate and/or pumping pressure of the drilling fluid to change. This serves as a signal that the predetermined wear condition has been achieved. The bit wear indicator can be adapted to monitor many different types of bit wear, including bearing wear in roller-cone type bits and gauge wear in all types of bits.
摘要翻译：一个钻头钻头，装有钻头磨损指示器。钻头磨损指示器包括：用于检测钻头上选定点处的磨损的传感器; 用于改变钻头从钻柱接收钻井液的阻力的装置; 以及在磨损传感器和流动阻力改变装置之间延伸的张紧连杆。在检测到预定磨损程度时，磨损传感器释放张紧连杆机构中的张力。这激活了流动阻力改变装置，导致钻井液的流量和/或泵送压力改变。这用作已经实现了预定磨损状况的信号。钻头磨损指示器可以适用于监测许多不同类型的钻头磨损，包括滚子锥形钻头中的轴承磨损和各种类型钻头的量规磨损。

3. 发明授权

US4785895A Drill bit with wear indicating feature 失效
标题翻译：钻头具有磨损指示功能
公开(公告)号：US4785895A
公开(公告)日：1988-11-22
申请号：US166593
申请日：1988-03-10
申请人： Albert P. Davis, Jr. , Joseph W. Stolle
发明人： Albert P. Davis, Jr. , Joseph W. Stolle
IPC分类号： E21B10/08 , E21B10/22 , E21B12/02 , E21B44/00 , F16C19/52
CPC分类号： F16C19/52 , E21B10/22 , E21B12/02 , F16C17/246
摘要： An earth drilling bit incorporating a tensioned linkage type bit wear indicator. A tensioned linkage extends through the bit between a wear sensor and a device for altering the resistance of the bit to receiving drilling fluid from the drill string. On detecting a predetermined degree of wear, the wear sensor releases the tension in the tensioned linkage. This activates the flow resistance altering device, causing the flow rate and/or pumping pressure of the drilling fluid to change. The tensioned linkage passes through two intersecting passageways in the bit. A guide element is inserted at the intersection of the two intersecting passageways. The guide element routes the tensioned linkage between the two passageways.
摘要翻译：一个包含张紧连杆式钻头磨损指示器的地球钻头。张紧的连杆延伸穿过磨损传感器和装置之间的钻头，用于改变钻头的阻力以从钻柱接收钻井液。在检测到预定磨损程度时，磨损传感器释放张紧连杆机构中的张力。这激活了流动阻力改变装置，导致钻井液的流量和/或泵送压力改变。张紧的连杆通过位中的两个相交的通道。引导元件插入在两个相交通道的交点处。引导元件引导两个通道之间的张紧连杆。

4. 发明授权

US4537457A Connector for providing electrical continuity across a threaded connection 失效
标题翻译：用于在螺纹连接处提供电连续性的连接器
公开(公告)号：US4537457A
公开(公告)日：1985-08-27
申请号：US697689
申请日：1985-02-04
申请人： Albert P. Davis, Jr. , Leon H. Robinson
发明人： Albert P. Davis, Jr. , Leon H. Robinson
IPC分类号： E21B17/02 , H01R13/533 , H01R24/58 , H01R3/00
CPC分类号： H01R24/58 , E21B17/028 , H01R13/533 , H01R2105/00
摘要： A connector 10 is disclosed which is suited for use in effecting an electrical connection between separate conductor bundles 12, 16 in adjacent sections of a threadably sectioned conduit. The connector 10 is especially well suited for use in providing electrical continuity across a tool joint in a drill string. The connector 10 has first and second portions 20, 22 each adapted for placement in a corresponding connection portion of two connectable lengths of conduit. The first and second portions 20, 22 form a pin and box connection. Corresponding contacts 46, 80 on the first and second portions 20, 22 assume a conductive relationship in response to connection of the conduit. The contacts 46, 80 of each connector portion 20, 22 are radially symmetric about the axis of the conduit and are axially displaced one from the other. The contacts 46, 80 within the assembled connector 10 are isolated from the conduit environment. Apparatus is provided for maintaining a dielectric fluid in the region surrounding the contacts 46, 80 to ensure electrical insulation of the connector 10.
摘要翻译：公开了连接器10，其适于用于实现在螺纹切断导管的相邻部分中的分开的导体束12,16之间的电连接。连接器10特别适用于提供穿过钻柱中的工具接头的电连续性。连接器10具有第一和第二部分20,22，每个部分适于放置在两个可连接长度的导管的对应的连接部分中。第一和第二部分20,22形成销和盒连接。在第一和第二部分20,22上的对应的接点46,80响应导管的连接呈现导电关系。每个连接器部分20,22的触点46,80围绕导管的轴线径向对称并且彼此轴向地移位。组装的连接器10内的触点46,80与管道环境隔离。提供了用于在围绕触点46,80的区域中保持介电流体的装置，以确保连接器10的电绝缘。

5. 发明授权

US4506729A Drill string sub with self closing cable port valve 失效
标题翻译：钻柱子带自动关闭电缆端口阀
公开(公告)号：US4506729A
公开(公告)日：1985-03-26
申请号：US468534
申请日：1983-02-22
申请人： Albert P. Davis, Jr. , Orien M. Knight , John W. Stoltz
发明人： Albert P. Davis, Jr. , Orien M. Knight , John W. Stoltz
IPC分类号： E21B17/02 , E21B17/00 , E21B34/00
CPC分类号： E21B17/025
摘要： A side-entry sub for use in conjunction with wireline cable. The sub has a cable entry port provided with a self-closing valve for sealing the port upon withdrawal of the cable. In one embodiment, the self-closing valve is characterized by a housing member supporting a closure disc which is integrally molded with a resiliently deflectable support member having an elastic memory which biases the valve in the closed position. In an alternate embodiment, the self-closing valve comprises a ball valve, biased in the closed position by magnetic or spring means, and having a passageway through which the cable may pass. When the cable is inserted through the passageway, the ball valve is held in the valve open position. When the cable is removed from the passageway, the ball valve automatically closes.
摘要翻译：用于与有线电缆结合使用的侧入子系统。该副具有一个电缆入口，该电缆入口具有一个自动关闭阀，用于在退出电缆时密封端口。在一个实施例中，自动关闭阀的特征在于支撑封闭盘的壳体构件，所述闭合盘与具有弹性存储器的可弹性偏转的支撑构件整体模制，所述弹性存储器将阀门偏置在关闭位置。在替代实施例中，自动关闭阀包括球阀，其通过磁性或弹簧装置偏置在关闭位置，并且具有电缆可以通过的通道。当电缆穿过通道插入时，球阀被保持在阀打开位置。当电缆从通道中取出时，球阀自动关闭。

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