公开(公告)号：US20050052949A1

公开(公告)日：2005-03-10

申请号：US10806009

申请日：2004-03-22

申请人： Graham Gaston ,  Holger Mathiszik ,  Hans Rehbock

发明人： Graham Gaston ,  Holger Mathiszik ,  Hans Rehbock

IPC分类号： E21B47/022 ,  G01V1/26 ,  G01V1/42 ,  G01V1/50 ,  G01V1/24

CPC分类号： G01V1/50 ,  E21B47/02208 ,  G01V1/26 ,  G01V1/42

摘要： A method and system is provided for acquiring seismic data while conducting drill string operations in a wellbore. A seismic receiver is conveyed in a drill string to a location of interest; coded seismic signals are generated by a seismic source near a surface location; the coded seismic signals are detected with at least one sensor in the seismic receiver at least one location of interest in the wellbore as the drill string is operated in the wellbore; an arrival time of the detected seismic signal is computed in the seismic receiver; and the detected seismic signals or computed arrival times are stored in the seismic receiver or transferred to the surface.

摘要翻译： 提供一种用于在井眼中进行钻柱操作时采集地震数据的方法和系统。 地震接收器在钻柱中传送到感兴趣的位置; 编码的地震信号由表面位置附近的地震源产生; 当钻柱在井眼中操作时，在地震接收器中至少一个感兴趣的位置在井筒中的至少一个传感器检测编码的地震信号; 在地震接收机中计算检测到的地震信号的到达时间; 并且将检测到的地震信号或计算出的到达时间存储在地震接收机中或传送到地面。

公开(公告)号：US06427783B1

公开(公告)日：2002-08-06

申请号：US09758065

申请日：2001-01-10

申请人： Volker Krueger ,  Hans Rehbock ,  Thomas Kruspe ,  Johannes Witte ,  Detlef Ragnitz

发明人： Volker Krueger ,  Hans Rehbock ,  Thomas Kruspe ,  Johannes Witte ,  Detlef Ragnitz

IPC分类号： E21B4700

摘要： In general, the present invention provides a modular drilling assembly having a module for contactless power and data transfer over a nonconductive gap between rotating and non-rotating members of a steering module. The gap usually contains a non-conductive fluid, such as drilling fluid, or oil for operating hydraulic devices in the downhole tool. The downhole tool in one embodiment is a modular drilling assembly wherein a drive shaft is rotated by a downhill motor to rotate a drill bit attached to the bottom end of the drive shaft. A substantially non-rotating sleeve around the drive shaft includes at least one electrically-operated device. The drilling assembly is modular in that it includes at least one steering module at the bottom end of the drilling assembly that has at least one steering device module that provides power to the force application member. A power and data communication uphole of the steering module provides power to the steering module and data communication between the drilling assembly and the surface.