公开(公告)号：US20180120462A1

公开(公告)日：2018-05-03

申请号：US15561270

申请日：2016-04-06

Applicant: inApril AS

Inventor： Vidar HOVLAND ,  Ragnar LANGÅKER ,  Jan Roar STORESUND

IPC: G01V1/38

Abstract: It is described a node handling device for use during deployment or retrieval of a plurality of seismic nodes (10) attacked to a cable (8), the node handling device comprising: a wheel device (1) adapted for damping of the cable (8) with attached seismic nodes (10) during deployment or retrieval. A wheel device and a method for deployment or retrieval are also disclosed.

公开(公告)号：US20190146110A1

公开(公告)日：2019-05-16

申请号：US16307083

申请日：2017-06-01

Applicant: inApril AS

Inventor： Vidar HOVLAND ,  Terje SPARENGEN

IPC: G01V1/36 ,  G01V1/18 ,  G01V1/38 ,  G01V1/24

Abstract: Method for time drift measurement of at least one slave clock in at least one seismic node, wherein the time drift measurement is performed in the at least one seismic node. The seismic node is configured for receiving a master clock signal and obtaining a time drift between the slave clock and the master clock signal.

公开(公告)号：US20180031717A1

公开(公告)日：2018-02-01

申请号：US15548625

申请日：2016-02-11

Applicant: inApril AS

Inventor： Vidar HOVLAND ,  Malte SENSSON ,  Vidar PEDERSEN

IPC: G01V1/20

CPC classification number: G01V1/202 ,  B63B21/66 ,  B63B35/04 ,  G01V1/201 ,  G01V1/38 ,  G01V1/3852

Abstract: It is described an attachment device (2) for attaching a seismic node to a cable (1), the attachment device comprising an in-line fastening device (6) fastening the cable (1); and at least one locking device (3) securing the cable (1) in the at least one in-line fastening device (6). The locking device (3) prevents the cable (1) from escaping the fastening device (6). A seismic node and a method for deployment and retrieval of a number of seismic nodes are also described.