CN2360604Y - Anti-dropping rope cap for circular space detection - Google Patents

Abstract

The utility model relates to an anti-dropping rope cap for circular space detection in a bottom of an oil field well. The utility model is characterized in that an elastic steel wire protection sleeve is additionally arranged in an inner hole of a rope cap head, and the inner hole at the rope cap head is processed into a V shape. The structure makes the steel wire at the rope cap head be free of hard crashing tubing coupling, and makes the steel wire not damaged to be broken and fall. The V-shaped inner hole increases cushion space, so the steel wire at the rope cap head is protected further, and the accident of the fall and the clamping under the well is reduced.

Description

The anti-lost rope socket of annulus logging

The utility model belongs to the oilfield well testing protective device.

In the downhole production test process of oil field, the steel wire for logging band instrument always twining oil pipe at oil, the sleeve pipe annular space moves up and down.Used rope socket in the prior art, its top end face is vertical with the steel wire bearing of trend, and rope socket adopts stainless steel material to make.Therefore, when carrying on the instrument, the continuous hard collision tubing coupling of the steel wire at rope socket head place is equivalent to the rope socket head steel wire is constantly produced a kind of dissection, thereby causes steel wire to damage and disconnected taking off, and causes the down-hole to fall the card accident.

The purpose of this utility model is that design a kind ofly can be protected steel wire, prevents the disconnected anti-lost rope socket of annulus logging that takes off.

The utility model is characterised in that in the endoporus of rope socket head and installed the steel wire protection cover additional, and this steel wire protection cover is enclosed within on the steel wire, and in addition, the endoporus at rope socket head place is processed into " V " font.

Because the utility model has installed the steel wire protection cover additional; the steel wire at rope socket head place avoids the hard collision tubing coupling, makes steel wire unlikely impaired, and " V " font endoporus has increased cushion space; further the steel wire at protection rope socket head place reduces and resolves the generation of taking off the card accident.

Be described in further detail as follows below in conjunction with accompanying drawing:

Fig. 1 is the structure chart of rope socket in the prior art;

Fig. 2 is the utility model rope socket structure chart.

As shown in Figure 2, the utility model has installed steel wire protection cover 2 additional in the endoporus of rope socket head 1, and steel wire 3 places in the steel wire protection cover 2, and in addition, the endoporus at rope socket head 1 place is processed into " V " font.Steel wire protection cover 2 adopts elastomeric material, carries, when putting instrument, during the steel wire 3 collision tubing couplings at rope socket head 1 place one elastic buffer effect is arranged, and it is impaired that steel wire 3 is difficult for; In addition, " V " shape structure has increased the cushion space of steel wire protection cover 2, further protects the steel wire 3 at rope socket head 1 place, prevent disconnected taking off, and has reduced the generation that the card accident is fallen in the down-hole.

Claims (2)

1. the anti-lost rope socket of annulus logging is characterized in that having installed steel wire protection cover (2) additional in the endoporus of rope socket head (1), and this steel wire protection cover (2) is enclosed within on the steel wire (3), and the endoporus of rope socket head (1) is " V " font.

2. the anti-lost rope socket of annulus logging according to claim 1 is characterized in that described steel wire protection cover (2) is an elastomeric material.

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