公开(公告)号：EP2964882A1

公开(公告)日：2016-01-13

申请号：EP14760504.2

申请日：2014-03-07

申请人： Evolution Engineering Inc.

发明人： LOGAN, Aaron W. ,  AHMOYE, Daniel W. ,  SWITZER, David A. ,  LIU, Jili

IPC分类号： E21B47/13 ,  E21B47/06 ,  G08C19/02 ,  H04L29/10

CPC分类号： E21B47/122 ,  E21B3/02 ,  E21B17/003 ,  E21B17/028 ,  E21B33/06 ,  E21B47/06 ,  E21B47/12 ,  E21B47/123 ,  H04L67/12 ,  H04Q9/00

摘要： An assembly for receiving telemetry signals from downhole equipment is located at a top end of a drill string above a drill rig floor. The assembly may be configured to receive multiple types of telemetry signals, for example, two or more of electromagnetic telemetry, mud pulse telemetry and drill string acoustic telemetry signals. The assembly may comprise a cap comprising a coupling and an end separated by an electrically insulating gap region. The end of the cap may be connected to a grounding system for the drill rig.

公开(公告)号：EP2961926A1

公开(公告)日：2016-01-06

申请号：EP14757108.7

申请日：2014-02-27

申请人： Evolution Engineering Inc.

发明人： LIU, Jili ,  SWITZER, David A. ,  LOGAN, Aaron W.

IPC分类号： E21B47/18 ,  F15B5/00

CPC分类号： E21B47/18 ,  E21B47/00 ,  E21B47/187 ,  F15B21/125

摘要： A fluid pressure pulse generating apparatus including a pulser assembly and a fluid pressure pulse generator and methods of using the fluid pressure pulse generating apparatus. The pulser assembly comprises a motor, a sensor for detecting rotation of the motor, a driveshaft rotationally coupled to the motor, and processing and motor control equipment communicative with the motor and the sensor. The fluid pressure pulse generator is coupled with the driveshaft. The sensor provides an indication of the amount of rotation of the motor and this information can be processed by the processing and motor control equipment to determine the position of the driveshaft and to control rotation of the driveshaft based on a predetermined rotational relationship between the driveshaft and the motor.

公开(公告)号：EP2959103A1

公开(公告)日：2015-12-30

申请号：EP14754839.0

申请日：2014-02-25

申请人： Evolution Engineering Inc.

发明人： LOGAN, Aaron W. ,  SWITZER, David A. ,  LIU, Jili ,  LOGAN, Justin C. ,  XU, Mingdong

IPC分类号： E21B47/12 ,  E21B44/00 ,  E21B47/00 ,  E21B47/10 ,  E21B7/00 ,  H04B3/00

CPC分类号： E21B47/122 ,  E21B7/04 ,  E21B47/00 ,  E21B47/12 ,  E21B47/14 ,  E21B47/18 ,  H04B3/54 ,  H04B2203/5458 ,  H04B2203/5475

摘要： A downhole system has a plurality of telemetry systems and a control system configured to obtain information from one or more sensors and transmit that information on one or more of the plurality of telemetry systems. The configuration of a controller may be changed so as to change which information is transmitted on a given telemetry system and how the information is to be transmitted on the given telemetry system.

公开(公告)号：EP2932035A1

公开(公告)日：2015-10-21

申请号：EP13866036.0

申请日：2013-12-17

申请人： Evolution Engineering Inc.

发明人： LOGAN, Aaron W. ,  LIU, Jili ,  SWITZER, David A. ,  LOGAN, Justin C.

IPC分类号： E21B47/06 ,  E21B47/18

CPC分类号： E21B47/187 ,  E21B34/06 ,  E21B47/06 ,  E21B47/18

摘要： A method of operating a dual pulse height fluid pressure pulse generator of a downhole measurement-while-drilling telemetry tool, the pulse generator operable to flow a drilling fluid in a full flow configuration to produce no pressure pulse, a reduced flow configuration to produce a high amplitude pressure pulse and an intermediate flow configuration to produce a low amplitude pressure pulse, the method comprising: (a) operating the pulse generator to produce the no pressure pulse, the high amplitude pressure pulse and the low amplitude pressure pulse and measuring the pressures of the no pressure pulse, high amplitude pressure pulse and low amplitude pressure pulse; (b) determining an amplitude of the high amplitude pressure pulse and an amplitude of the low amplitude pressure pulse from the measured pressures; (c) comparing the determined amplitudes to a low amplitude reference pressure and a high amplitude reference pressure; and (d) operating the pulse generator between the full and intermediate flow configurations in a low amplitude pulse mode to transmit a telemetry signal to surface only when the determined amplitude of the low amplitude pressure pulse is above the low amplitude reference pressure; or, operating the pulse generator between the full and reduced flow configurations in a high amplitude pulse mode to transmit a telemetry signal to surface only when the determined amplitude of the high amplitude pressure pulse is below the high amplitude reference pressure.

公开(公告)号：EP2932014A1

公开(公告)日：2015-10-21

申请号：EP13865065.0

申请日：2013-12-17

申请人： Evolution Engineering Inc.

发明人： LOGAN, Aaron W. ,  DERKACZ, Patrick R. ,  LOGAN, Justin C. ,  SWITZER, David A.

IPC分类号： E21B17/04 ,  E21B44/00 ,  E21B7/04 ,  E21B7/08

CPC分类号： E21B17/043 ,  E21B7/067 ,  E21B17/00 ,  E21B17/042 ,  E21B17/05 ,  E21B47/01 ,  E21B47/024

摘要： Adjustment of the angle of a bent sub or other steering feature in a drill string relative to a reference angle of a downhole sensor is facilitated by a rotatable coupling between the bent sub and the sensor. The rotatable coupling may be rotated to align the high side with a reference indicium and locked at the set angle. Rows of ceramic balls retained in circumferential channels may be provided to permit rotation while carrying tensile and compressional forces. Calibration of the sensor is facilitated and opportunities for certain measurement errors are eliminated. An embodiment provides a mechanism for locking the rotatable coupling at a desired angle. The embodiment comprises a ring with teeth that engage a downhole portion of the coupling and depressions that engage an uphole portion of the coupling.

公开(公告)号：EP2929140A1

公开(公告)日：2015-10-14

申请号：EP13860175.2

申请日：2013-12-06

申请人： Evolution Engineering Inc.

发明人： SWITZER, David A. ,  LOGAN, Aaron W. ,  LIU, Jili ,  KAZEMI, Mojtaba

IPC分类号： E21B47/024 ,  E21B44/00 ,  E21B47/022 ,  E21B7/04

CPC分类号： E21B47/022 ,  E21B47/011 ,  E21B47/024 ,  E21B47/12 ,  G01P15/00 ,  G01P15/18

摘要： The embodiments described herein generally relate to a method and apparatus for providing a back up system of Directional and Inclination (D&I) information to be gathered and transmitted in addition to primary D&I sensors currently employed in industry. A downhole probe assembly including primary sensors, back up sensors and a controller is disclosed. The primary sensors comprise primary accelerometers and primary magnetometers configured to gather information relating to each of orthogonal axes X, Y and Z. The back up sensors comprise back up accelerometers configured to gather information relating to each of orthogonal axes X, Y and Z, the back up accelerometers being solid state accelerometers. The controller is in electrical communication with the primary sensors and the back up sensors. The controller is configured to receive and process information from the primary sensors and the back up sensors so that information from the back up accelerometers can be used when one or more of the primary accelerometers fail, which may allow drilling operations to continue despite such failure.

摘要翻译： 本文描述的实施例通常涉及用于提供除了目前在工业中使用的主要D＆I传感器之外要收集和发送的定向和倾斜（D＆I）信息的备份系统的方法和装置。 公开了一种包括主传感器，备用传感器和控制器的井下探头组件。 主传感器包括主加速度计和主磁力计，其被配置为收集与正交轴X，Y和Z中的每一个相关的信息。备用传感器包括配置为收集与正交轴X，Y和Z中的每一个相关的信息的备用加速度计， 备份加速度计是固态加速度计。 控制器与主传感器和备用传感器电气通信。 控制器被配置为从主传感器和备用传感器接收和处理信息，使得当一个或多个主加速度计失效时可以使用来自后备加速度计的信息，这可能允许钻井操作继续，尽管这样的故障。