公开(公告)号：US4998227A

公开(公告)日：1991-03-05

申请号：US425842

申请日：1989-10-23

Applicant: Eivind Rygg ,  Karstein Rod

Inventor： Eivind Rygg ,  Karstein Rod

IPC: G01V1/38 ,  G01V1/20

CPC classification number: G01V1/201

Abstract: A device for seismic exploration is in the form of a towed streamer. The streamer is easily managed, is very flexible and has a low weight so that it may be towed with moderate tractive forces. The streamer includes a cable with an inner core, one or more layers of insulated conductor pairs and an outer low-friction protective coating. Both the core and the outer low-friction protective layer are of an acoustically substantially inert material of low specific gravity. Seismic signals are obtained series connected gimbal-mounted geophones arranged in strings connected to the cable at positions spaced longitudinally thereof.

Abstract translation: 一种用于地震勘探的装置是拖曳拖缆的形式。 拖缆易于管理，非常灵活，重量轻，可以用适度的牵引力牵引。 拖缆包括具有内芯，一层或多层绝缘导体对和外部低摩擦保护涂层的电缆。 核心和外部低摩擦保护层都是低比重的声学上基本惰性的材料。 地震信号是串联连接的万向架安装的地震检波器，其布置成串联连接到电缆的纵向间隔的位置。