CN201031643Y

CN201031643Y - Down-hole salvaging release tools

Info

Publication number: CN201031643Y
Application number: CNU200720150065XU
Authority: CN
Inventors: 郭景学; 蔡山; 刘德君; 刘桥; 丁日辉
Original assignee: Daqing Oilfield Co Ltd
Current assignee: Daqing Oilfield Co Ltd
Priority date: 2007-05-30
Filing date: 2007-05-30
Publication date: 2008-03-05
Anticipated expiration: 2017-05-30

Abstract

The utility model relates to an underground mining salvage and release tool, which mainly solves the problems of the salvage and release of underground mining tools in the process of modularization cable perforations. The utility model is characterized in that: the lower of an upper pile casing (1) is connected with a valvular joint (5), a lower pile casing (6) in sequence. The inner of the lower pipe casing (6) has a basket barrel overshot (7) and a lug (8) positioned in the basket barrel overshot (7) is fixed at the lower end of a driving axle (3). The basket barrel overshot (7) is a fission structure and the outer wall of the basket barrel overshot (7) has a hoop spring (9). The side wall of the basket barrel overshot (7) has a groove (10) which is close engagement with the lug (8). The underground mining salvage and release tool can realize two actions of salvage and release and meet the process requirements of the modularization cable perforations, which is characterized in safe and reliable salvage and release and high work efficiency.

Description

Releasing tool is salvaged in the down-hole

Technical field:

The utility model relates to oil field perforation technology field, is applied to belong to a kind of perforating gun and go into the well utensil down-hole salvaging releasing tool in oil field prospecting, the exploitation perforation completion process.

Background technology:

In the oil field perforation process, after finishing, perforation needs perforating gun is salvaged out, and downhole perforation rifle fishing tool commonly used can only be realized an action---salvages, can not deliver.And in the modular cable gun perforation process, requirement is sent into the down-hole to perforating gun by propping up before the perforation, pursues a salvaging behind the perforation again to ground.Original instrument can not satisfy the technological requirement of modular cable perforation.

The utility model content:

Can only realize that in order to overcome existing perforating gun fishing tool is salvaged an action, can not satisfy the deficiency of modular cable gun perforation process requirement, the utility model provides a kind of down-hole salvaging/releasing tool, releasing tool is salvaged in this down-hole can realize salvaging, discharging two actions, can satisfy the technological requirement of modular cable perforation, have the characteristics safe and reliable, high efficiency that discharge of salvaging.

The technical solution of the utility model is: this down-hole is salvaged releasing tool and is comprised casing, motor, driving shaft and bearing are housed in the last casing, last casing below is connected with lobe y junction y, following casing in turn, in the following casing fishing socket is arranged, the driving shaft lower end is fixed with the lug that places in the fishing socket, fishing socket has garter spring for dividing body structure and its outer wall, and the sidewall of fishing socket has groove, and lug and groove coincide.

On the driving shaft between above-mentioned fishing socket and the lobe y junction y spring pedestal and spring are housed.The lobe y junction y has garter spring for dividing body structure and its outer wall, and the lobe y junction y is threaded in following casing and with following casing.

The utlity model has following beneficial effect: owing to take such scheme, can drive the driving shaft rotation when motor rotates, make the groove on the lug back-out fishing socket sidewall, fishing socket is strutted, can discharge the salvaging thing this moment; When lug precession groove, the fishing socket closure, can promptly salvage thing this moment.This instrument can be realized salvaging, discharging two actions, can satisfy the technological requirement of modular cable perforation, and salvaging discharges safe and reliable, high efficiency.

Description of drawings;

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

1-goes up casing, 2-motor, 3-driving shaft, 4-bearing, 5-lobe y junction y, casing under the 6-, 7-fishing socket, 8-lug, 9-garter spring, 10-groove, 11-spring pedestal, 12-spring among the figure.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

By shown in Figure 1, the down-hole is salvaged releasing tool and is comprised casing 1, motor 2, driving shaft 3 and bearing 4 are housed in the last casing 1, last casing 1 below is connected with lobe y junction y 5, following casing 6 in turn, in the following casing 6 fishing socket 7 is arranged, driving shaft 3 lower ends are fixed with the lug 8 that places in the fishing socket 7, and fishing socket 7 has garter spring 9 for dividing body structure and its outer wall, the sidewall of fishing socket 7 has groove 10, and lug 8 coincide with groove 10.Spring pedestal 11 and spring 12 are housed on the driving shaft 3 between fishing socket 7 and the lobe y junction y 5, when salvaging or discharge perforating gun, can reduce impact motor.Lobe y junction y 5 has garter spring 9 for dividing body structure and its outer wall, and lobe y junction y 5 is threaded in following casing 6 and with following casing 6.

During actual the use, can drive driving shaft 3 rotations when motor 2 rotates, the groove 10 that lug 8 is screwed out on fishing socket 7 sidewalls struts fishing socket 7, and can discharge the salvaging thing this moment; When lug 8 precession grooves 10, fishing socket 7 closures, can promptly salvage thing this moment.This instrument can be realized salvaging, discharging two actions, can satisfy the technological requirement of modular cable perforation, and salvaging discharges safe and reliable, high efficiency.

Claims

1. releasing tool is salvaged in a down-hole, comprise casing (1), motor (2), driving shaft (3) and bearing (4) are housed in the last casing, it is characterized in that: go up casing (1) below and be connected with lobe y junction y (5), following casing (6) in turn, fishing socket (7) is arranged in the following casing (6), driving shaft (3) lower end is fixed with the lug (8) that places in the fishing socket (7), fishing socket (7) has garter spring (9) for dividing body structure and its outer wall, the sidewall of fishing socket (7) has groove (10), and lug (8) coincide with groove (10).

2. releasing tool is salvaged in down-hole according to claim 1, it is characterized in that: spring pedestal (11) and spring (12) are housed on the driving shaft (3) between fishing socket (7) and the lobe y junction y (5).

3. releasing tool is salvaged in down-hole according to claim 1, it is characterized in that: lobe y junction y (5) has garter spring (9) for dividing body structure and its outer wall, and lobe y junction y (5) is threaded in following casing (6) and with following casing (6).