CN201306143Y

CN201306143Y - Novel fisher for downhole tubular falling object

Info

Publication number: CN201306143Y
Application number: CNU2008201733601U
Authority: CN
Inventors: 王春霞; 王洪波; 刘江波; 葛继胜; 江亮; 夏双喜; 王春江; 王涛; 刘昌进; 刘兆远
Original assignee: 王春霞
Priority date: 2008-10-22
Filing date: 2008-10-22
Publication date: 2009-09-09
Anticipated expiration: 2018-10-22

Abstract

The utility model relates to a tool for downhole operation, in particular to a novel fisher for a downhole tubular falling object. The technical scheme thereof is that the device mainly comprises a fisher body, a marble, and a marble groove; the marble groove which is wide at the top and narrow at the bottom is arranged at the lower end of the fisher body; the marble is arranged in the marble groove; a spring is fixed on the bottom part of the marble groove; the marble is connected with the bottom part of the marble groove through the spring; and the marble can fall in time through the pulling of the spring. The device has the beneficial effects that the marble can fall in time through the pulling and shrinking of the spring, the falling object can be jammed timely, thereby fishing the tubular falling object successfully; and the operation success ratio is high, and the operation cost is saved.

Description

Novel down-hole tubulose fishing junk device

One, technical field:

The utility model relates to a kind of underground work instrument, particularly a kind of novel down-hole tubulose fishing junk device.

Two, background technology:

At present, in the oilfield downhole operation process,, generally adopt the slip-type fisher, but, tend to lose efficacy, be difficult to salvage for the slightly little junk of caliber for the bigger tubulose trouble of lost tool in hole of caliber; Chinese patent literature discloses a kind of " down-hole tubulose fishing junk device ", and its publication number is CN2591217Y, discloses a kind of pellet shot from a slingshot that utilizes in the unidirectional freedom of wedge shape space, and oppositely the mode of tensioner is locked fisher and tubulose junk, thereby salvages junk; It is simple in structure, use is reliable, but the problem that exists is: pellet shot from a slingshot blocks sometimes and can not fall, and causes to occur with the situation of tubulose junk locking, thereby causes the fishing failure.

Three, summary of the invention:

The purpose of this utility model is exactly the above-mentioned defective that exists at prior art, and a kind of novel down-hole tubulose fishing junk device is provided, and pellet shot from a slingshot is fallen, and blocks the tubulose junk accurately, and fishing is finished smoothly.

Its technical scheme is: mainly be made up of fisher main body, pellet shot from a slingshot and bullet groove, the lower end of described fisher main body is provided with bullet groove wide at the top and narrow at the bottom, pellet shot from a slingshot is installed in the bullet groove, bottom in described bullet groove is fixed with spring, pellet shot from a slingshot connects the bottom of bullet groove by spring, under the tractive of spring, pellet shot from a slingshot can fall timely.

The beneficial effects of the utility model are: the tractive strong by spring shrinks, and pellet shot from a slingshot is in time fallen, and blocks junk timely, successfully salvages the tubulose junk, and the job success ratio height is saved operating cost.

Four, description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model.

Five, the specific embodiment:

In conjunction with the accompanying drawings 1, the utility model will be further described:

Mainly form by fisher main body 1, pellet shot from a slingshot 2 and bullet groove 3, the lower end of described fisher main body 1 is provided with bullet groove wide at the top and narrow at the bottom 3, pellet shot from a slingshot 2 is installed in the bullet groove, be fixed with spring 4 in the bottom of described bullet groove 3, pellet shot from a slingshot 2 is by the bottom of spring connection bullet groove 3, like this, under the tractive of spring, pellet shot from a slingshot can fall timely, thereby blocks the tubulose junk by pellet shot from a slingshot, and fishing is finished smoothly.

Claims

1, a kind of novel down-hole tubulose fishing junk device, mainly form by fisher main body (1), pellet shot from a slingshot (2) and bullet groove (3), the lower end of described fisher main body (1) is provided with bullet groove wide at the top and narrow at the bottom (3), pellet shot from a slingshot (2) is installed in the bullet groove, it is characterized in that: be fixed with spring (4) in the bottom of described bullet groove (3), pellet shot from a slingshot (2) connects the bottom of bullet groove (3) by spring.