CN208870557U - A kind of cable setting tool - Google Patents

Abstract

The utility model discloses a kind of cable setting tools, including Pressure chamber, shear joint, upper end connector, upper cylinder sleeve, upper end piston, lower cylinder sleeve, lower end piston, one end of Pressure chamber and shear joint is spirally connected, the other end of shear joint is spirally connected with upper end piston, upper end piston is reducing type structure small in ends broad in the middle, place is major diameter section among it, it is upper miner diameter end at the upper end, its lower end is lower miner diameter end, upper end piston is externally provided with cylinder sleeve and lower cylinder sleeve, the outer wall of upper cylinder sleeve is equipped with relief hole, rubber stopper is equipped at the relief hole, the through-hole being axially distributed is equipped at the center of the upper end piston, the through-hole extends to major diameter pars infrasegmentalis from the end of upper path section, upper cylinder sleeve and shear joint junction are equipped with upper end connector, lower end piston portion is in lower cylinder sleeve, and it is spirally connected between upper end piston and lower end piston.The electric cable bridge plug setting tool for having the function of anti-premature setting and releasing pressure automatically function.

Description

A kind of cable setting tool

Technical field

The utility model belongs to oil field development production equipment technology more particularly to a kind of cable setting tool.

Background technique

Cable setting tool is powered in electric cable bridge plug operation, connecting bridge plug and cable, ground, sets through cable ignition Igniter in tool, and stick is lighted, the gaseous-pressure that stick burning generates pushes setting tool to generate relative motion, That realizes bridge plug the movement such as sets, gives up.

Traditional electric cable bridge plug setting tool, not anti-premature setting function, setting tool after a period of use, are set Axial gap can be generated between tool piston, need to eliminate by applying a pretightning force to bridge plug during connecting bridge plug This gap, therefore easily cause bridge plug midway to set during setting tool band bridge plug tripping in.And traditional electric cable bridge plug is sat Envelope tool does not have releasing pressure automatically function, uses comparatively laborious.

Summary of the invention

Place in order to overcome the above-mentioned deficiencies of the prior art, the utility model provide a kind of cable setting tool, its structure It is simple and convenient to operate, sets reliably, have the function of the electric cable bridge plug setting tool of anti-premature setting and releasing pressure automatically function.

To achieve the above objectives, the present invention adopts the following technical solutions: a kind of cable setting tool, including pressure One end spiral shell of storehouse, shear joint, upper end connector, upper cylinder sleeve, upper end piston, lower cylinder sleeve, lower end piston, Pressure chamber and shear joint It connects, the other end and the upper end piston of shear joint are spirally connected, and upper end piston is reducing type structure small in ends broad in the middle, locate among it It is upper miner diameter end at the upper end for major diameter section, lower end is lower miner diameter end, and upper end piston is externally provided with cylinder sleeve and lower cylinder sleeve, on The outer wall of cylinder sleeve is equipped with relief hole, and rubber stopper is equipped at the relief hole, axial distribution is equipped at the center of the upper end piston Through-hole, which extends to major diameter pars infrasegmentalis from the end of upper path section, and upper cylinder sleeve and shear joint junction are equipped with upper end Connector, lower end piston portion is in lower cylinder sleeve, and is spirally connected between upper end piston and lower end piston.

In the above-mentioned technical solutions, it is in 45 degree of angles that through-hole, which is divided into two in major diameter section bottom, at the center of the upper end piston Oblique through hole.

In the above-mentioned technical solutions, hydraulic oil is full of between the upper cylinder sleeve and upper end piston.

In the above-mentioned technical solutions, between the Pressure chamber and shear joint be equipped with the first sealing ring, shear joint with it is upper It holds and is equipped with the second sealing ring between piston, third sealing ring, upper end piston are equipped between the major diameter section and upper cylinder sleeve of upper end piston Path section and lower cylinder sleeve between be equipped with the 4th sealing ring, between lower cylinder sleeve and upper cylinder sleeve be equipped with the 5th sealing ring, lower end piston The 6th sealing ring is equipped between lower cylinder sleeve.

In the above-mentioned technical solutions, the other end of the Pressure chamber is connected with igniter head, is equipped with stick, point in Pressure chamber Duration and degree of heating is connect with external cable.

In the above-mentioned technical solutions, the shear joint and upper end connector pass through shearing pin connection.

In the above-mentioned technical solutions, at the outer wall of the Pressure chamber upper end be equipped with one at through-hole and four it is equally distributed blind Hole.

The beneficial effects of the utility model are: its structure is simple and convenient to operate, it can use, set in oil, gas and water well Reliably, have the function of anti-premature setting and releasing pressure automatically function.

Detailed description of the invention

Fig. 1 is the schematic cross-sectional view of the utility model.

Fig. 2 is the connection cross-sectional view of lower cylinder sleeve and setting sleeve in the utility model.

Wherein: 1 igniter head, 2 Pressure chambers, 3 sticks, 4 first O-ring seals, 5 shear joints, 6 second O-shaped sealings It encloses, 7 shear pins, end connector on 8,9 rubber plugs, 10 hydraulic oil, cylinder sleeve on 11,12 upper end pistons, 13 third O-ring seals, under 14 Cylinder sleeve, 15 lower pistons, 16 setting sleeves, 17 adjustment connectors.

Specific embodiment

With reference to the accompanying drawing and specific embodiment the utility model is described in further detail.

A kind of cable setting tool as shown in Figure 1, including Pressure chamber 2, shear joint 5, upper end connector 8, upper cylinder sleeve 11, Upper end piston 12, lower cylinder sleeve 14, lower end piston 15, Pressure chamber 2 and one end of shear joint 5 are spirally connected, the other end of shear joint 5 It is spirally connected with upper end piston 12, upper end piston 12 is reducing type structure small in ends broad in the middle, and place is major diameter section among it, thereon It is upper miner diameter end at end, lower end is lower miner diameter end, and upper end piston 12 is externally provided with cylinder sleeve 11 and lower cylinder sleeve 14, upper cylinder sleeve 11 Outer wall is equipped with relief hole, and rubber plug is equipped at the relief hole, is equipped with the through-hole being axially distributed at the center of the upper end piston 12, The through-hole extends to major diameter pars infrasegmentalis from the end of upper path section, and upper cylinder sleeve 11 is equipped with upper end connector with 5 junction of shear joint 8, lower end piston 15 is partially in lower cylinder sleeve 14, and is spirally connected between upper end piston 12 and lower end piston 15.

In the above-mentioned technical solutions, it is in 45 degree that through-hole, which is divided into two in major diameter section bottom, at the center of the upper end piston 12 The oblique through hole at angle.Through-hole at 12 center of upper end piston is divided into two 45 degree of oblique through hole, is convenient for pressure mean allocation, upper cylinder half 11 movement of set is more smooth.

In the above-mentioned technical solutions, hydraulic oil is full of between the upper cylinder sleeve 11 and upper end piston 12.In powder burning The compressed gas of generation enters upper cylinder sleeve 11 by the through-hole of upper end piston 12, and hydraulic oil 10 can slow down the stroke of setting tool Speed, while when hydraulic fluid pressure steeply rises, rubber plug 9 can be emitted, and after the completion of setting bridge plug, and when powder burning produces Raw compressed gas can also be from the relief hole releasing pressure automatically of rubber plug 9.

In the above-mentioned technical solutions, the first sealing ring 4, shear joint 5 are equipped between the Pressure chamber 2 and shear joint 5 It is equipped with the second sealing ring 6 between upper end piston 12, third is equipped between the major diameter section and upper cylinder sleeve 11 of upper end piston 12 and is sealed Circle 18, is equipped with the 4th sealing ring 13 between the lower path section of upper end piston 12 and lower cylinder sleeve 14, lower cylinder sleeve 14 and upper cylinder sleeve 11 it Between be equipped with the 5th sealing ring 19, between lower end piston 15 and lower cylinder sleeve 14 be equipped with the 6th sealing ring 20.Sealing ring has been provided to To sealing function, and the sealing between the 4th sealing ring 13 and the 6th sealing ring 20, make to form a sealing inside lower cylinder sleeve 14 Cavity is equivalent to air spring, plays the role of damping.

In the above-mentioned technical solutions, the other end of the Pressure chamber 2 is connected with igniter head 1, is equipped with stick in Pressure chamber 2 3, igniter head 1 is connect with external cable.Connect bridge plug and cable, when need to set bridge plug give up when, be powered on ground, through electricity Cable ignites the igniter in setting tool, and lights stick, and the gas pressure that stick burning generates pushes the production of branch setting tool Raw relative motion realizes setting, giving up for bridge plug by bridge plug adapter.

In the above-mentioned technical solutions, it is equal that 4.5mm through-hole and four 13.5mm at one are equipped at the 2 upper end outer wall of Pressure chamber The blind hole of even distribution.4.5mm through-hole is for dismantling safety after setting tool use, if there are also the residual pressures of gunpowder for Pressure chamber Power can be discharged by this hole；Four equally distributed blind holes of 13.5mm are for the ease of tool assembly and disassembly.

In the above-mentioned technical solutions, the shear joint 5 is connect with upper end connector 8 by shear pin 7.Under setting tool It is exactly to prevent tool premature setting from first to cut this shear pin when setting tool works by this shear pin 7 during well Relative motion could further be generated.

As shown in Fig. 2, the lower cylinder sleeve 14 is spirally connected with setting sleeve 16, and is equipped with adjustment connector 17 in setting sleeve 16, and under Piston 15 is spirally connected with adjustment connector 17.

Using the utility model tool when, positioned at igniter head 1 of cable setting tool upper end light after generate spark, draw Positioned at the positive lower end of igniter head 1 stick 3, about 30 the stick 3 that this substance by controllable burning is configured to Second burning, stick 3 burn caused by high pressure gas be used to drive setting tool to run.

The through-hole that high pressure gas passes downwardly through upper end piston 12 enters upper cylinder sleeve 11, drives setting tool external component upper cylinder half 11,8 downlink of lower cylinder sleeve 14 and upper end connector are covered, while upper end piston 12, lower piston 15 keep stablizing；It is hydraulic in setting tool The travel speed of oily 10 controllable setting tools, outside setting tool when several component downlinks, upper 11 top of cylinder sleeve it is hydraulic Oil 10 can be entered in pit shaft by the annular gap that the outer diameter and 8 internal diameter of upper end connector of relief hole and shear joint 5 are formed；Tool External downlink reaches its extreme limit of travel, has the upper cylinder sleeve 11 of relief hole to slip over third sealing ring 18 at the three of upper end piston 12 on one side Sealing surface, when relief hole by the third sealing ring 18 above upper end piston 12 the last one when, compressed gas will pass through Relief hole leaks into pit shaft.16 one end of setting sleeve in diagram 2 is threadedly coupled with lower cylinder sleeve 14, and the other end connects with bridge plug upper surface Touching, adjustment 17 one end of connector are threadedly coupled with lower piston 15, and the part of giving up of the other end and bridge plug connects, and are set by the cable The relative axial movement that tool generates promotes bridge plug to set, and the release ring (or release bolt) on bridge plug is pulled off, and setting tool can It is taken out from pit shaft.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in Change or replacement, should be covered within the scope of the utility model.

Claims (7)

1. a kind of cable setting tool, it is characterized in that: include Pressure chamber, shear joint, upper end connector, upper cylinder sleeve, upper end piston, One end of lower cylinder sleeve, lower end piston, Pressure chamber and shear joint is spirally connected, and the other end and the upper end piston of shear joint are spirally connected, on End piston is reducing type structure small in ends broad in the middle, and it is upper miner diameter end at the upper end, lower end is that place, which is major diameter section, among it Lower miner diameter end, upper end piston are externally provided with cylinder sleeve and lower cylinder sleeve, and the outer wall of upper cylinder sleeve is equipped with relief hole, is equipped at the relief hole Rubber stopper, the through-hole being axially distributed is equipped at the center of the upper end piston, which extends to greatly from the end of upper path section Diameter pars infrasegmentalis, upper cylinder sleeve and shear joint junction are equipped with upper end connector, and lower end piston portion is in lower cylinder sleeve, and upper end is living It is spirally connected between plug and lower end piston.

2. cable setting tool according to claim 1, it is characterized in that: through-hole is in major diameter at the center of the upper end piston Section bottom is divided into two oblique through holes in 45 degree of angles.

3. cable setting tool according to claim 1, it is characterized in that: being full of liquid between the upper cylinder sleeve and upper end piston Pressure oil.

4. cable setting tool according to claim 1, it is characterized in that: being equipped with the between the Pressure chamber and shear joint One sealing ring is equipped with the second sealing ring, sets between the major diameter section and upper cylinder sleeve of upper end piston between shear joint and upper end piston There is third sealing ring, the 4th sealing ring is equipped between the path section of upper end piston and lower cylinder sleeve, is set between lower cylinder sleeve and upper cylinder sleeve There is the 5th sealing ring, the 6th sealing ring is equipped between lower end piston and lower cylinder sleeve.

5. cable setting tool according to claim 1, it is characterized in that: the other end of the Pressure chamber is connected with igniting Head, Pressure chamber is interior to be equipped with stick, and igniter head is connect with external cable.

6. cable setting tool according to claim 1 leads to it is characterized in that: being equipped at one at the outer wall of the Pressure chamber upper end Hole and four equally distributed blind holes.

7. cable setting tool according to claim 1, it is characterized in that: the shear joint and upper end connector pass through shearing Pin connection.