公开(公告)号：US20180066490A1

公开(公告)日：2018-03-08

申请号：US15553830

申请日：2016-01-14

申请人： Read AS

发明人： Tore KJOS

IPC分类号： E21B33/035 ,  E21B47/12 ,  G01V1/22 ,  G01V1/52

CPC分类号： E21B33/035 ,  E21B47/12 ,  E21B47/123 ,  G01V1/226 ,  G01V1/52

摘要： A method and system for transmitting signals from a distributed acoustic sensor, DAS, into a well through at least one pin penetrator running from a downhole side to a top side of a subsea wellhead, and without degrading quality of the signals. The method includes: connecting a first assistant recording package, ARP, between the DAS and the at least one pin penetrator on a downhole side of the wellhead; connecting a second ARP between a data acquisition system and the at least one pin penetrator on the topside of the well head; converting DAS signals to electrical signals by the first ARP and performing signal conditioning; transmitting signals received from the DAS sensors, from the first ARP and through the wellhead to the second ARP. The system implements the method.

公开(公告)号：US20160291186A1

公开(公告)日：2016-10-06

申请号：US14896998

申请日：2014-06-10

申请人： READ AS

发明人： Tore KJOS

IPC分类号： G01V1/40 ,  G01V1/22 ,  G01V1/18

CPC分类号： G01V1/40 ,  G01V1/189 ,  G01V1/226

摘要： A seismic sensor cable 10 for lowering into a subterranean well 15 for acquiring information about seismic, microseismic and mechanical vibration incidents in the subterranean well 15, where the device comprises a first portion 20 that is elongate and has a first length with a proximal end and a distal end that are to be lowered down into a lower part of the subterranean well 15, the first portion 20 having a plurality of electric or electromechanical multicomponent seismic sensors 25 that are connected and distributed over large parts of its first length, and wherein the seismic profiling device 10 further comprises a second portion 30 that is elongate and has a second length with a proximal end that is to be held above the subterranean well 15 and a distal end that is to be lowered down into the upper part of the subterranean well 15, said second portion 30 comprising an optical fibre 35 that runs along large parts of said second portion 30, and an electric cable 40 for conducting electric power from the proximal end to said seismic sensors in the first portion 20, and a connector 45 for connecting the proximal end of the first portion 20 to the distal end of the second portion 30. The invention also comprises a system and a method for acquiring information about seismic, microseismic and mechanical vibration incidents in the subterranean well 15.

摘要翻译： 地下传感器电缆10，用于下降到地下井15中，用于获取关于地下井15中的地震，微震和机械振动事件的信息，其中该装置包括第一部分20，该第一部分20是细长的并具有第一长度和近端， 要向下降到地下井15的下部的远端，第一部分20具有多个电气或机电多组分地震传感器25，其连接并分布在其第一长度的大部分上，并且其中 地震剖面装置10还包括第二部分30，该第二部分30是细长的并且具有第二长度，其中近端将被保持在地下井15的上方，并且远端将被下降到地下井的上部 如图15所示，所述第二部分30包括沿所述第二部分30的大部分延伸的光纤35和用于导电的电缆40 第一部分20中的从近端到所述地震传感器的电力功率，以及用于将第一部分20的近端连接到第二部分30的远端的连接器45.本发明还包括一种系统和方法， 获取关于地下井15的地震，微震和机械振动事件的信息。