SU1116406A1 - Attachment unit of seismic detectors of marine oil-filled seismic cables - Google Patents

Abstract

KNOT OF FIXING SEISMIC RECEIVERS OF SEA OIL FILLED APPLICATIONS The CPSMOKOS, made in the form of a holder with a socket for the piezo rifle and a hinge guard, is distinguished by the fact that, in order to improve noise immunity and repair facilities, the Department of Emergency Controls is distinguished by the fact that, in order to improve jamming and repair, the forces of the troop debris are distinguished by the fact that, in order to improve jamming and repair, the forces of troop breeders are distinguished by the fact that, in order to increase the noise immunity and repair facilities, the Department of Internal Affairs The power cables and the receptacle for the piezo receiver are interconnected by longitudinal through slots.

Description

I1

The invention relates to seismic prospecting and can be used as an attachment point for seismic necrosis in marine oil-filled and xix seismicos.

Piezo-like devices, which are sealed in marine seismic mowers, which metal hull hChc are attached to the wiring harness in the instrument box

KOCF sections) 1.

A disadvantage of the known attachment of piezo receivers is the unsatisfactory mechanical unraveling from the heavy-carrying cables. Mechanical vibration of the ship during operation is transmitted to piezo receivers and degrades the signal-to-scrap ratio: i. 4io reduces seismic depth.

The closest technical solution to the proposed one is the Kregg-n seismic receiver unit of the Nacjiu-iianonHeHHbix soymokos marine seismic receiver, which is a holder with a jack, a piezo receiver, and channels for junction and power cables. The knot | m; le1P consists of two plastic Boc. Ix housings fastened together with screws. Inside the CorLusop there is a piezo receiver with a predecessor1 ns5 with a rubber sheath on. This structure allows to improve the acoustic insulation of the piezo receiver from the rest of the cetCMOKochi elements -.

However, this 1st mount point is inconvenient for iipi-i installation and repair, since all the mounting connectors of the PROBO ia pass through the through holes in the plastic cases. and when removing the assembly from the braid harness, it is necessary to disassemble the mounting joints. In addition, the nbe3or pt eMimKa rubber sheaths are small and in a compressed state between plastic shells that tfi pododit: insufficient acoustic insulation of the piezo receiver from the cables.

Cs; 1b of the invention - increase by fur cisze) 1 and maintainability

This goal is achieved by the fact that in the mount of the seismic receivers of marine oil-filled seismic mow, 1.b; filled into a holder with a slot for a piezo receiver and channels for seismic cable and power .E.ix cables, the holder is made of an elastic vibration-absorbing mat 6, 2

rial, and the channels for seismic cable, power cables and g} 1cars for a piezo receiver are interconnected by the following: through through slots,

FIG. 1 shows the mount of the seismic receivers in the initial (solid line) and unfolded (dashed line) positions; in fig. 2 — mount with mounted seismic receiver, side view; in fig. 3 is a fully assembled attachment assembly (view A in FIG. 2).

The mount is made in the form of a holder 1 of elastic vibration-absorbing material, for example rubber, in which jacks 2 are made to accommodate a piezo receiver, longitudinal through channels 3 and 4 for a seismic receiver and carrying power cables. Through channels 4 and 3 and QC-nova 1e sockets 2 are connected by Mejiviy by longitudinal slots 5 (Fig. 1). In the socket 2 of holder I, a piezo receiver 6 is installed (Fig. 2). Through channel 3, seismic cable 7 is passed, and through channels 4, ci-LnoQbie carrying cables 3. Piezo receiver 6, mounted in holder 1, is secured by band 9.

The installation of the crepe assembly: 1 into the instrument section of the seismic array: is performed as follows.

The holder 1 is taken over the edges and opened along the existing through longitudinal slits S (dotted line in Fig. 1). Seismic cable 7 and power 1 are inserted into the uncovered channels 3 and 4; the holder is closed and the cables 8 are closed.

a nest

The iU) e3 receiver 6 is fixed, fixed by bandage 9. The holder thus reliably fixes the mutual position of the receptacle, the tow bar and the power support cables.

As a view from the lead drawings, the piezopri.mvik 6 is reliably isolated from the sipovy supporting cables 8 by means of a holder made of an elastic material. Furs} The ship's vibrating vibration is not transmitted to the piezo receiver. The fixing unit becomes compact and consists of only two elements of the holder and a bandage. In case of failure of the piezo receiver or holder, replacing them is not difficult, it does not require additional dismantling of any other elements of the seismocos.

Fi f

FIG. 3

Claims (1)

THE SEISM RECEIVER NICKNAME FOR MARINE OIL-FILLED SEISMOKOS, made in the form of a holder with a socket for a piezoelectric receiver and channels for a seismic cable and power cables, is distinguished by the fact that, with the aim of increasing noise immunity and maintainability, the holder is made of vibration resistant material, for a seismic cable, power cables and a socket for a piezoelectric receiver, the pin is interconnected by longitudinal through slots. FIG. 1