公开(公告)号：US20110163889A1

公开(公告)日：2011-07-07

申请号：US13046574

申请日：2011-03-11

Applicant: Paul L. Camwell ,  James M. Neff ,  Douglas S. Drumheller

Inventor： Paul L. Camwell ,  James M. Neff ,  Douglas S. Drumheller

IPC: G01V3/00

CPC classification number: E21B47/16

Abstract: Non-contacting means of measuring the material velocities of harmonic acoustic telemetry waves travelling along the wall of drillpipe, production tubing or coiled tubing are disclosed. Also disclosed are contacting means, enabling measurement of accelerations or material velocities associated with acoustic telemetry waves travelling along the wall of the tubing, utilizing as a detector either a wireless accelerometer system or an optical means, or both; these may also be applied to mud pulse telemetry, wherein the telemetry waves are carried via the drilling fluid, causing strain in the pipe wall that in turn causes wall deformation that can be directly or indirectly assessed by optical means.The present invention enables detection of telemetry wave detection in space-constrained situations. The invention also teaches a substantially contactless method of determining the time-based changes of the propagating telemetry waves. A final benefit of the present invention is that it demonstrates a particularly simple contacting means of directly measuring wall movements in live coiled tubing drilling environments.

Abstract translation: 公开了测量沿着钻杆，生产管道或连续油管的壁行进的谐波声学遥测波的材料速度的非接触方式。 还公开了接触装置，其能够测量与沿管道壁行进的声学遥测波相关联的加速度或材料速度，利用无线加速度计系统或光学装置或两者的检测器; 这些也可以应用于泥浆脉冲遥测，其中遥测波通过钻井液携带，导致管壁的应变，从而导致可以通过光学装置直接或间接地评估的壁变形。 本发明能够在空间有限的情况下检测遥测波检测。 本发明还教导了确定传播遥测波的基于时间的变化的基本上非接触的方法。 本发明的最终益处在于它展示了一种特别简单的直接测量活盘管道钻井环境中的壁面运动的接触方式。

公开(公告)号：US20100200296A1

公开(公告)日：2010-08-12

申请号：US12704368

申请日：2010-02-11

Applicant: Paul L. Camwell ,  John G. McRory ,  David D. Whalen ,  James M. Neff

Inventor： Paul L. Camwell ,  John G. McRory ,  David D. Whalen ,  James M. Neff

IPC: E21B47/026 ,  G01V1/40

CPC classification number: E21B47/02208

Abstract: A system and method of closed loop control whereby groupings of surface sonic transmitters disposed along the planned path of a well send sonic wave energy to a downhole sonic receiver (or alternatively a downhole sonic transmitter signalling to grouping of surface sonic receivers) in a manner that facilitates the downhole positioning of the well. Subsequent offset well positioning, relative to the first well, may be achieved in a similar manner.

Abstract translation: 闭环控制的系统和方法，其中沿着井的规划路径布置的表面声波发射器的分组将声波能量发送到井下声波接收器（或者替代地，井下声波发射器发信号通知表面声波接收机的分组），其方式为 有助于井的井下定位。 可以以类似的方式实现相对于第一井的后续偏移井定位。

公开(公告)号：US07928861B2

公开(公告)日：2011-04-19

申请号：US11786646

申请日：2007-04-11

Applicant: Paul L. Camwell ,  James M. Neff ,  Douglas S. Drumheller

Inventor： Paul L. Camwell ,  James M. Neff ,  Douglas S. Drumheller

IPC: G01V3/00

CPC classification number: E21B47/16

Abstract: Non-contacting means of measuring the material velocities of harmonic acoustic telemetry waves travelling along the wall of drillpipe, production tubing or coiled tubing are disclosed. Also disclosed are contacting means, enabling measurement of accelerations or material velocities associated with acoustic telemetry waves travelling along the wall of the tubing, utilizing as a detector either a wireless accelerometer system or an optical means, or both; these may also be applied to mud pulse telemetry, wherein the telemetry waves are carried via the drilling fluid, causing strain in the pipe wall that in turn causes wall deformation that can be directly or indirectly assessed by optical means.The present invention enables detection of telemetry wave detection in space-constrained situations. The invention also teaches a substantially contactless method of determining the time-based changes of the propagating telemetry waves. A final benefit of the present invention is that it demonstrates a particularly simple contacting means of directly measuring wall movements in live coiled tubing drilling environments.

Abstract translation: 公开了测量沿着钻杆，生产管道或连续油管的壁行进的谐波声学遥测波的材料速度的非接触方式。 还公开了接触装置，其能够测量与沿管道壁行进的声学遥测波相关联的加速度或材料速度，利用无线加速度计系统或光学装置或两者的检测器; 这些也可以应用于泥浆脉冲遥测，其中遥测波通过钻井液携带，导致管壁的应变，从而导致可以通过光学装置直接或间接地评估的壁变形。 本发明能够在空间有限的情况下检测遥测波检测。 本发明还教导了确定传播遥测波的基于时间的变化的基本上非接触的方法。 本发明的最终益处在于它展示了一种特别简单的直接测量活盘管道钻井环境中的壁面运动的接触方式。

公开(公告)号：US07817061B2

公开(公告)日：2010-10-19

申请号：US11786645

申请日：2007-04-11

Applicant: Paul L. Camwell ,  James M. Neff

Inventor： Paul L. Camwell ,  James M. Neff

IPC: G01V3/00

CPC classification number: E21B47/16

Abstract: A method for enhancing downhole telemetry performance comprising enhancing a signal in order to offset signal-to-noise ratio reduction with increasing measured depth, wherein the signal is modified at specified measured depths which are inferred from acoustic wave velocity determination.

Abstract translation: 一种用于增强井下遥测性能的方法，包括增强信号以便随着测量深度的增加来抵消信噪比的降低，其中在由声波速度确定推断出的指定测量深度处修改信号。